Injection Molding Screw Barrel: Kusankha, Kusamalira & Kuthetsa Mavuto

Kodi Jakisoni Woumba Screw Barrel Ndi Chiyani?

Zowononga ndi mbiya zimapanga pulasitiki yopangira makina opangira jakisoni. Pamodzi, amatenga ma pellets olimba kuchokera ku hopper, kuwasungunula, kuwasakaniza mu yunifolomu kusungunula, mita kuwombera kwenikweni, ndikubaya kuwomberako mu nkhungu. Chigawo chilichonse chomwe makina anu amapanga chimadutsa pawiriyi.

Zoumba zimalowa m'malo opangira ma nozzles, sungani zisankho, ndikusintha kutentha kwa milungu ingapo asanayang'ane gawo la pulasitiki. Dongosolo limenelo ndi lakumbuyo. Pamene screw kapena mbiya kuvala, palibe kuika pa wolamulira kumabweretsa ndondomeko mmbuyo.

Udindo wa Screw mu Plasticization

Chophimbacho chimasungunuka kwambiri, osati ndi ma heater. Kutentha kwa migolo kumathandizira, koma njira yayikulu yosungunuka ndiyokukameta moto: screw imakokera polima motsutsana ndi khoma la mbiya yotentha, ndipo kukangana kumatulutsa kutentha mkati mwazinthuzo. Ichi ndichifukwa chake screw geometry imasintha kutentha kusungunuka ngakhale malo anu osasuntha.

Chitsulocho chimakhalanso ndi mita yowombera. Imazungulira kuti ipangike pulasitiki, imabwereranso pamene chitsulo chimasungunuka kutsogolo kwa nsonga, kenako chimayima. Mtunda umene wabwezedwa ndi kuwombera kwanu. Chisungunu chilichonse chomwe chimatsikira chammbuyo paulendo wa pandege kapena kudutsa cheke chimawononga muyesowo.

Pomaliza, phula limabaya. Imasiya kuzungulira ndikumayendetsa kutsogolo ngati plunger, kukakamiza kusungunuka kudzera mumphuno. Maudindo apawiri awa, ozungulira komanso obwerezabwereza, amalekanitsa screw ya jekeseni ndi screw extrusion.

Udindo wa Mgolo mu Kusamutsa Kutentha ndi Kusungidwa

Mgolowu ndi chotengera chokhazikika chomwe chimakhala ndi choboola chotenthetsera. Lili ndi mphamvu ya jakisoni, limasamutsa kutentha kuchokera kumagulu kupita ku polima, ndipo limapereka khoma lolimba lomwe phulalo limametapo zinthu.

Chomera chake chiyenera kukhala chozungulira, chowongoka, komanso cholimba. Pamene bowo likukulirakulira, chilolezo chapakati pa screw Flight ndi mbiya khoma chimakula. Sungunulani ndiye kutayikira cham'mbuyo pa ndege m'malo kupita patsogolo, ndi plasticizing mlingo kugwa.

Kutentha kwa migolo kumayikidwa, nthawi zambiri kudyetsa, kuponderezana, ndi metering, iliyonse imakhala ndi chowongolera komanso thermocouple. Thermocouple yosunthika mu gawo limodzi imatha kuphika zinthu kwa miyezi ingapo pomwe chiwonetserocho chikuwoneka ngati chabwinobwino.

Momwe Screw ndi Barrel Zimagwirira Ntchito Pamodzi Monga Dongosolo

Magawo awiriwa amachita ngati awiri ofananira, ndipo nambala yomwe ikufotokoza awiriwo ndichilolezo cha radial: theka la kusiyana pakati pa mbiya yoboola m'mimba mwake ndi m'mimba mwake.

Chilolezo ndi chaching'ono ndi mapangidwe. Ulamuliro wamakampani pa seti yatsopano ndi pafupifupi inchi 0.001 pa mbali iliyonse pa inchi iliyonse ya screw diameter. Pa screw ya 60 mm (pafupifupi 2.36 in), yomwe imatera pafupi ndi 0.06 mm mbali iliyonse. Chojambula chanu ndichoulamuliro, ndipo nthawi zonse chiyenera kukhala nambala yomwe mumatsutsa.

Mpata wochepa umenewo umagwira ntchito kwenikweni. Zimakakamiza polima kuti azimeta khoma la migolo m'malo mozembera. Kuwirikiza kawiri chilolezocho ndikumeta ubweya kumachepa, kusungunuka kumachepa, kutsika kumatsika, ndipo makina amayesa kubwezera kutentha komwe sikuyenera kufunikira.

Kusintha gawo limodzi palokha sikukonza kawirikawiri kotha. Zowononga zatsopano mkati mwa mbiya yowonongeka zimabwezeretsa theka lachilolezo chomwe chinatayika, ndipo kusagwirizana kumavala gawo latsopano mofulumira kuposa momwe ziyenera kukhalira.

Anatomy of Injection Molding Screw

Sivuta yojambulira yokhazikika imagawika m'magawo atatu kuphatikiza nsonga. Chigawo chilichonse chili ndi ntchito, ndipo chilichonse chimalephera m'njira yomwe mungazindikire.

Feed Zone

Njira zakuya zimagwira ma pellets kuchokera ku mmero ndikusunthira patsogolo ngati zolimba. Zone iyi sisungunuka kwambiri. Zimapereka.

Mavuto a chakudya amafanana ndi mavuto osungunuka. Ngati ma pellets agwera pammero, kapena gawo la chakudya likutentha kwambiri ndipo ma pellets amafewa ndikumamatira msanga, zowononga zimafa ndi njala. Nthawi yochira imasinthasintha, ndipo kukula kwa kuwombera kumatsatira. Yang'anani kuzizira kwapakhosi musanayimbe mlandu geometry.

Compression (Transition) Zone

Kanemayo akucheperachepera pagawoli. Kumeta koteroko kumafinya polima pakhoma la mbiya yotentha ndi kutulutsa kutentha kwa shear komwe kumasungunuka.

Malo oponderezedwa ndi pomwe kuvala kumakhazikika. Kupanikizika kumakwera apa, ndipo zodzaza ndi abrasive zimakula kwambiri apa. Mukayesa screw yotha, apa ndipamene mumapeza manambala poyamba.

Metering Zone

Njira zosazama, zozama nthawi zonse zimasungunula chisungunukocho ndikuchiponyera kutsogolo ndi mphamvu yokhazikika. Zone iyi imatsimikizira kusasinthika kwa kuwombera ndi kuwombera.

Kuvala kwa metering-zone kumawonekera ngati kusiyanasiyana kwa kuwombera komanso kukwera kwa kutentha kosungunuka pamalo omwewo. Chomangiracho chikugwira ntchito molimbika kuti chisunthe zinthu zomwezo.

Screw Tip, Yang'anani mphete & Vavu Yosabwerera

Msonkhano wa mphete ya cheke, yomwe nthawi zina imatchedwa valavu yosabwerera, imayenera kusamala kwambiri kuposa momwe imapezera. Imakhala pa nsonga ya screw ndipo imagwira ntchito imodzi: ikamabaya imamangiriza, kotero kusungunula kumapita mu nkhungu m'malo mobwerera pamwamba pa screw.

Ikasiya kusindikiza, mumapeza kusiyana kwa kukula kwake, kuwombera kwakanthawi kochepa, ndi khushoni yomwe imasowa. Ma molders amatha masabata akusintha kuthamanga kwa jakisoni, kugwira nthawi, ndi kutentha kuthamangitsa izi. Palibe chomwe chimagwira, chifukwa chosungunukacho chikuthawa cham'mbuyo kudutsa mphete yotha.

Zizindikiro zitatu zimaloza pa cheke mphete makamaka. Khushoni imasiyanasiyana kuwombera osati kukhazikika. Kuwombera kulemera kumayendetsa pamene makina akuwonetsa kuchira bwino. Ndipo njira yobwerezabwereza imatembenuka mwadzidzidzi popanda kusintha kwa utomoni kapena kuyika.

Key Screw Geometry Parameters

Manambala anayi amafotokoza wononga jekeseni. Amvetseni, ndipo mawu a wogulitsa amasiya kukhala bokosi lakuda.

Mlingo wa L/D: Tanthauzo, Fomula, ndi Miyezo Yolangizidwa ndi Resin

Chiwerengero cha L/Dndi kutalika kwa ntchito ya wononga yogawidwa ndi awiri ake akunja. Zowononga nthawi 22 kuposa momwe zilili ndi L/D za 22:1. Njirayi imangokhala L yogawidwa ndi D, ndipo masikelo ake ndi kukula kwake: sikelo ya 50 mm pa 22:1 ili ndi kutalika kogwira ntchito kwa 1,100 mm.

L/D imayang'anira kuchuluka kwa malo omwe wonongayo iyenera kusungunuka, kusakaniza, ndi kupanga homogenize. Kutali kumapereka mphamvu yosungunuka komanso kusakaniza bwino. Kufupikitsa kumapereka nthawi yochepa yokhalamo, yomwe imateteza ma resin omwe samva kutentha.

Zomangira jekeseni zimakhala zazifupi kuposa zomangira zomangira. Zomangira zimapanga kuwombera kamodzi kamodzi m'malo mopopa mosalekeza, ndipo zinthu zimakhala mumgolo pakati pa kuwombera. MuL/D chiŵerengero cha jakisoni akamaumbapochita, makina ambiri amagwera pakati pa 18:1 ndi 25:1, ndi 20:1 mpaka 22:1 wofala pamakina acholinga chambiri.

Utoto wosamva kutentha monga PVC umakonda kumapeto kwakufupi, kotero kuti zinthu sizikhala ndi nthawi yotentha. Mapulasitiki a engineering omwe amafunikira kusungunuka bwino amakomera nthawi yayitali. Chiwongolero chathu cha chiŵerengero cha L/D chimakwirira malonda mozama.

Compression Ration: Momwe Imakhudzira Kutentha kwa Shear ndi Kusungunuka Kwabwino

Compression ratiokuyerekeza kuya kwa tchanelo mugawo la chakudya ndi kuya kwa tchanelo muzoni yoyezera. Zomangira zokhala ndi tchanelo chozama kuwirikiza katatu kuposa njira yoyezera mita zimakhala ndi chiyerekezo cha 3:1.

Compression ratio imayika momwe screw imagwirira ntchito mwamphamvu. Kupanikizana kwakukulu kumatanthauza kumeta ubweya wambiri, kutentha kwa makina ambiri, ndi kusungunuka kwambiri. Kuponderezana kwapansi kumagwira polima mofatsa.

Gwirizanitsani ndi utomoni, osati kukonda nambala yaikulu. Ma polyolefin a Low-viscosity amafunika kumeta ubweya wabwino kuti asungunuke bwino. Ma resins osamva kutentha monga PVC, PC, ndi POM amawononga pansi pometa ubweya kuti PE ichotse. Chiwongolero chathu cha compression ratio chimagwira ntchito mosiyanasiyana.

Kuzama kwa Ndege, M'lifupi mwa Channel, ndi Zokhudza Kutulutsa

Compression ratio ndi chiŵerengero, ndipo zomangira ziwiri zokhala ndi chiŵerengero chofanana zimatha kuchita mosiyana. Kuzama kwenikweni kuli ndi nkhani.

Njira yozama ya mita imasuntha zinthu zambiri pakasintha, kukweza kuchuluka kwa pulasitiki, koma imasakanikirana bwino ndikutulutsa kusungunuka kofananako. Njira yozama yozama imasakanikirana bwino ndikupereka kutentha kosasinthasintha, kutsika kocheperako.

M'lifupi mwamaulendo apandege ndi mbali ya helix zimakhudza kunyamula bwino komanso kumeta ubweya wa zinthu zomwe zimawona pamtunda. Izi ndi tsatanetsatane wa mapangidwe omwe mumawafotokozera pofotokoza njira yanu kwa wopangira zomangira, osati manambala omwe muyenera kusankha patebulo.

Screw Diameter ndi Shot Size Ubale

Screw diameter imayika luso la makina owombera. Sikwawo yokulirapo imachotsa voliyumu yochulukirapo pa millimita imodzi yaulendo wopita patsogolo, motero imapereka chithunzi chachikulu.

Lamulo lothandiza ndi gulu lotonthoza, osati malire ovuta. Thamangani kuwombera komwe kumagwiritsa ntchito kagawo kakang'ono ka mphamvu ya mbiyayo ndipo zinthuzo zimakhala mumgoloyo motalika kwambiri, ndikuyendetsa kutentha ndi kunyozeka. Thamangani mokwanira ndipo mumataya khushoni yofunikira kuti mulongedwe mosasinthasintha.

Ambiri amawumba amaloza kuwombera kwinakwake pakati pa mbiya yomwe ingagwiritsidwe ntchito. Ngati gawo lanu likhala kunja kwa gululo, kukonza koyenera ndi screw diameter yosiyana, osati makina olimba.

Nali tebulo lathu losindikizidwa, lomwe likuwonetsa momwe kuwombera kumawongolera ndi kukula kwa migolo pamitundu yonse yomwe timapanga. Igwiritseni ntchito kuti mupeze makina anu, kapena kuti muwonetsetse kuti m'mimba mwake yomwe wogulitsa akukuuzani.

Zinthu ziwiri zoti muwerenge mmenemo. Mphamvu yowombera imakwera m'mimba mwake, monga momwe fiziki imafunira. Ndipo mbiya yakunja kwake imakula nayo, ndichifukwa chake zomangira zazikulu sizimasinthidwa kwaulere: ndi gulu losiyana la kukula kwa makina.

Mitundu Yamajakisoni Omapangira Majekeseni: Ndi Iti Iti Mukufuna?

Mabanja asanu opangira jekeseni amaphimba pafupifupi jekeseni iliyonse. Zoyenera zimatengera utomoni wanu ndi zomwe gawo lanu likufuna.

General Purpose (GP) Screw: Yodziwika Kwambiri, Yabwino Kwambiri?

GP screw ndi kunyengerera, komanso yabwino. Imayendetsa PE, PP, PS, ndi ABS movomerezeka, yomwe imaphimba zinthu zambiri. Opanga makina amatumiza ngati muyezo chifukwa ndiye osatetezeka kwambiri pomwe sakudziwa zomwe mungayendetse.

Kunyengerera kumakuwonongani pamene utomoni umakhala wovuta. Siloni ya GP pa nayiloni yodzaza galasi imavala mwachangu. GP screw pa PVC yolimba imawononga zinthuzo. Chophimba cha GP chomwe chimakankhidwa kuti chiwonjezeke kwambiri pa khoma lopyapyala chimapereka zosasungunuka. Iliyonse mwa izi ikafotokoza momwe mukuchitira, zomangira zopangira zolinga zimadzilipira zokha.

Barrier Screw: Bwino Sungunulani Kupatukana ndi Homogeneity

Chotchinga chotchinga chimawonjezera ndege yachiwiri kupyola malo osungunuka. Kuwuluka kumeneko kumalekanitsa ma pellets otsalira otsala kuchokera kusungunuka kale, ndikusunga zolimba zokanidwa pakhoma la mbiya yotentha pomwe zimapitilira kusungunuka.

Popanda chotchinga, tinthu tating'onoting'ono timabisala mkati mwa dziwe losungunuka, lotsekedwa ndi khoma, ndipo zimatha kupulumuka mpaka pamphuno ngati zosasungunuka. Ndi chimodzi, kusungunuka kumatha kwathunthu komanso mosasinthasintha.

Phindu lake ndilabwino kusungunula mofanana kapena kutulutsa kwakukulu, komwe kumawoneka ngati kusungunuka kochepa, kuwongolera kuwombera mwamphamvu, ndi zenera lalikulu la ndondomeko. Zoumba zomwe zimakhala ndi khoma lopyapyala, zigawo zowoneka bwino, kapena chilichonse chomwe sichimasungunuka ziyenera kufunsa dzina lake.

Kusakaniza / Kuphatikizira Screw: Zodzaza ndi Zamtundu wa Masterbatch

Zosakaniza zosakaniza zimawonjezera gawo losakanikirana lodzipereka, kawirikawiri pafupi ndi nsonga. Zigawo za Maddock (zowululidwa) zimakakamiza kusungunula pamipata yopapatiza, ndikuphwanya tinthu tating'onoting'ono tomwe timameta ubweya. Zosakaniza za pini zimagawanika ndikuphatikizanso kutuluka, kugawa mtundu ndi zodzaza.

Gwiritsani ntchito imodzi pomwe kuwongolera kwamtundu kuli vuto labwino, kufalikira kwa masterbatch kukakhala kofunikira, kapena kugawa kwamafuta kumayendetsa magwiridwe antchito. Kugulitsana kumawonjezeredwa kukameta ubweya, zomwe zimapangitsa zigawo zosakaniza kukhala zosankha zolakwika kwa ma resins osamva kutentha omwe ali kale pafupi ndi malire awo owonongeka.

Chikulu cha Vented / Degassing: Kwa Hygroscopic Resins

Sivuta yotulutsa mpweya imakhala ndi magawo awiri. Gawo loyamba limasungunuka, kenako njirayo imazama mwadzidzidzi, ndikutsitsa mphamvu yosungunuka mpaka pafupi ndi ziro padoko lolowera mumgolo. Chinyezi ndi zowomba zimathawira kumeneko, nthawi zambiri popanda vacuum. Gawo lachiwiri ndiye repressurizes kusungunuka kwa jekeseni.

Izi zimagwira ntchito pazitsulo za hygroscopic pomwe kuyanika sikungatheke kapena kosadalirika. Zimakhalanso ndi chiopsezo: ngati magawo awiriwa sakufanana, sungunulani amatuluka pa doko lolowera m'malo mwa gasi. Chomangira chotuluka mpweya ndi mbiya yotulutsa mpweya ziyenera kupangidwa palimodzi, chifukwa chake zimatchulidwa ngati seti osati kusinthidwa mwachisawawa.

PVC-Specific Screw Design: Chifukwa Chomwe Zopangira Zokhazikika Zimalephera ndi PVC

PVC yolimba imalanga wononga wamba m'njira ziwiri nthawi imodzi. Imaonongeka pansi pa kukameta ubweya, kutulutsa hydrogen chloride, yomwe imawononga chitsulo chomwe imalimbana nayo. Kuwonongeka kumayamba wogwiritsa ntchito asanaone cholakwika.

Chophimba cha PVC chimayankha ziwopsezo zonse ziwiri. Kuponderezana kochepa kumapangitsa kukameta ubweya wofewa. Malo opukutidwa ndi geometry yopanda banga imayimitsa zinthu kuti zisamire ndi kuphika. Setiyi pafupifupi nthawi zonse imafunikira kukana kwa dzimbiri pamankhwala apamwamba, osati kungokana kuvala. ZathuPVC screw barrel guidechimakwirira chemistry, ndi athuconical twin screw migoloperekani PVC kumbali ya extrusion.

Momwe Mungasankhire Barrel Yoyenera Ya Screw ya Resin Yanu

Kusankhidwa kwa utomoni kumayendetsa chisankho china chilichonse patsamba: geometry, chitsulo, ndi pamwamba. Werengani tebulo, kenako werengani zolemba pansi pake, chifukwa zolembazo zimakhala ndi machenjezo.

Momwe mungagwiritsire ntchito tebulo ili:awa ndi omwe amasindikizidwa ndi malo oyambira, osati mafotokozedwe. Makina anu, kalasi yanu, gawo lanu, ndi zotuluka zanu zimasintha manambala. Wopanga screw amatsimikizira geometry yomaliza motsutsana ndi ndondomeko yanu yeniyeni. Osayitanitsa kuchokera patebulo lanthawi zonse popanda kukambirana kumeneko.

PP ndi PE: Semi-crystalline, Moderate kukameta ubweya

Ma polyolefins ndi osavuta. Amalekerera kumeta ubweya, kusungunula pawindo lalikulu, ndikukhululuka screw ya GP. Kupanikizana kwapakati mpaka kumtunda kumagwira ntchito bwino, chifukwa utomoni wocheperako umafunika kumeta ubweya wabwino kuti usungunuke bwino m'malo motsetsereka ndi theka losungunuka.

Kankhani zotulutsa mwamphamvu pamakoma owonda, ndipo chotchinga chotchinga chimapeza mtengo wake popereka kusungunuka kokwanira pa liwiro lomwelo.

ABS ndi PS: Amorphous, Onerani Kutentha kwa Shear

Utoto wa amorphous umafewetsa pamitundu yosiyanasiyana m'malo mosungunuka pamalo akuthwa. PS imayenda pang'onopang'ono chifukwa imasungunuka mosavuta. ABS imafunikira chisamaliro chochulukirapo: imawonetsa mikwingwirima ndi splay ikatsika, ndipo kutentha kwameta ubweya nthawi zambiri kumakhala chifukwa.

Ngati mbali za ABS zikuyenda ndipo malo anu akuwoneka bwino, ganizirani kumeta ubweya musanakayikire chowumitsira. Chiŵerengero champhamvu choponderezedwa pa utomoni wa amorphous wosamva kutentha umapanga zolakwika zake.

Mapulasitiki a PC ndi Engineering: Kutentha Kwambiri, Kutalikirapo L/D

PC, nayiloni, PBT, ndi achibale awo amasungunuka kwambiri ndikutsitsa pamwamba pake. Amafunikira kusungunuka kokwanira, komwe kumatsutsana ndi L / D yotalikirapo, komanso amalanga nthawi yokhalamo, yomwe imatsutsana ndi kusungunula mu mbiya yayikulu.

Chisankhocho ndi chachitali cha L/D chokhala ndi kuponderezedwa kofatsa komanso kuwombera koyenera. Pezani kukula kwa kuwombera molakwika pa PC ndikuzungulira kwazinthu kutentha mpaka kukhale chikasu, ngakhale wononga ndilabwino bwanji.

PVC Yokhazikika komanso Yosinthika: Kukaniza Kukaniza Kovuta

Chilichonse chomwe chili pamwamba pa PVC chikugwira ntchito pakusankha. PVC yolimba imakhala kumapeto kwa L/D ndi kupsinjika, chifukwa nthawi ndi kumeta ubweya ndi adani onse. Mankhwala a pamwamba ayenera kukana dzimbiri, osati abrasion, ndipo amasintha kusankha aloyi mkati bimetallic mbiya.

PET ndi POM: Low shear, Precise Temperature Control

PET ndi hygroscopic. Madzi mu melting amasungunula unyolo wa polima, amatsitsa kukhuthala kwamkati, ndikusiya ma preforms olimba komanso osalala pomwe makinawo akuwoneka ngati akuyenda bwino. Yanikani utomoni bwino, kameta ubweya wochepa, nyumba ikhale yaifupi, ndipo tchulani malo opukutidwa kuti ma depositi asapangike.

POM imalekerera kuponderezedwa wamba koma imawonongeka kwambiri ikatenthedwa, ndipo zowononga zake zimakhala zowopsa. Kuwongolera kutentha ndi kuwongolera nthawi yokhalamo ndizofunikira kwambiri kuposa luso la geometry.

Zida Zodzaza Galasi ndi Zowonongeka: Mzere wa 30%.

Pano pali lamulo lomveka bwino pa tsamba, ndipo ndi nambala, osati kumverera.Ulusi wagalasi mpaka 30%: seti ya nitrided 38CrMoAlA imagwira.Timapanga ndi kuvotera zomangira zathu za nitrided chimodzimodzi, zozimitsidwa ndi kupsya mtima, kenako zokhala ndi gasi mpaka 0.5–0.8 mm pa 950–1050 HV.

Pamwamba pa magalasi 30%, kapena okhala ndi mineral filler ndi retardant flame pamwamba, pamwamba payenera kusintha.Mlandu wa nitrided ndi wosanjikiza, ndipo chodzaza ndi abrasive chimadutsamo posachedwa kwambiri kuposa momwe chitsulo chomwe chili pansi chimayenera kukhalira.

Ndi pamene abimetallic screw mbiyaimasiya kukweza ndipo imakhala yolondola: alloy yolimba idapopera mozungulira mozungulira pobowo, kutengera kulimba kwamkati kufika pa 62 HRC. Geometry imatsatirabe utomoni woyambira. Malo okhawo amasintha. Zathubimetallic vs nitrided guideimagwira ntchito molingana ndi mtengo.

Mitundu ya Mimbi, Zida, ndi Machiritso a Pamwamba

Mgolo sulephera kwambiri. Imatsegula, mwakachetechete, ndikutenga zomwe mwatulutsa nazo. Zinthu ndi pamwamba zimasankha nthawi yayitali bwanji.

Standard Nitrided Steel Barrel: Ntchito ndi Malire

Nitriding imagawaniza nayitrogeni pamwamba pazitsulo, kupanga cholimba. Timathira masirawuni athu a 38CrMoAlA jakisoni wa gas-nitride pa 500–560 °C, kumapanga wosanjikiza wa nitrided 0.5–0.8 mm wokhuthala ndi 950–1050 HV. Izi zimakweza kukana kovala ndi 30-40% kuposa chitsulo chosasamalidwa.

Chitsulo choyambira chimazimitsidwa ndi kupsya mtima choyamba, chomwe chimakweza kukana kukameta ubweya wa ubweya ndi 50% yokha. Pamodzi, masitepe awiriwa amapereka moyo wautumiki wa maola pafupifupi 10,000–20,000 pa utomoni wosawononga monga PE ndi PP.

Malire ake ndi kuzama kwa mlandu. Abrasion ikadutsa munsanjika ya nitrided, pachimake chofewa pansi pake chimavala mwachangu. Timayesa zomangira zathu za jekeseni wa nitrided zopangira zolimbitsa magalasi mpaka 30% (mwachitsanzo, PA kuphatikiza ulusi wagalasi). Pamwamba pa izo, kapena pazitsulo zowononga, thumba la nitrided ndilopambana ndipo pamwamba payenera kusintha.

Bimetallic Barrel: Kumanga, Mtengo, ndi Pamene Ikulipira

Mgolo wa bimetallic umasunga thupi lachitsulo cha alloy ndikuphatikiza chophatikiza chosiyana mu bore. Pamigolo yathu timawaza zolimba mozungulira mozungulira mozungulira mozungulira, zomwe zimapangitsa kulimba kwamkati kufika pa 62 HRC.

Umenewo ndi mtundu wina wa chitetezo ku nitriding. Chophimba cha nitride ndi gawo lofalikira lomwe limayesedwa mu tizigawo ta millimeter. Chomera chopopera kapena chosakanikirana ndi chitsulo chosiyana, ndipo chodzaza ndi abrasive chiyenera kudutsa zonsezo.

Aloyi amasankhidwa chifukwa choopseza. Malo okhala ndi carbide olemera komanso tungsten-carbide amakana ma abrasion kuchokera ku magalasi ndi ma mineral fillers. Ma aloyi okhala ndi nickel amakana dzimbiri kuchokera ku PVC ndi mankhwala oletsa moto. Sankhani alloy yolakwika ndipo mwalipira mbiya ya bimetallic yomwe imathetsa vuto lolakwika.

Zimalipira nthawi iliyonse chakudya chanu chikapsa kapena chachita dzimbiri. Masamu ndi osavuta: ngati bimetallic set imatenga nthawi zingapo ngati nitrided pa zinthu zanu, mtengo wogulira wapamwamba umagawanika mpaka pamtengo wotsika pachaka, musanawerenge zotsalira ndi nthawi yochepetsera zomwe mumapewa.

Segmented vs Monolithic Barrel: Flexibility vs Precision

Mgolo wa monolithic (chidutswa chimodzi) umapangidwa kuchokera ku thupi limodzi. Imasunga kuwongoka komanso kukhazikika bwino, ndipo ndichizolowezi pakupanga jakisoni, komwe kumayendetsa bwino kuwombera.

Migolo yogawanika imamangidwa pamodzi kuchokera m'zigawo, zomwe zimalola kuti gawo lowonongeka lisinthidwe popanda kutulutsa mbiya yonse, ndikulola kuti madoko olowera akhazikike bwino. Malonda amayenderana: cholumikizira chilichonse ndi mwayi wosokoneza, ndipo makina ojambulira sakhululuka kuposa kuphatikizira ma extruders.

Base Steel ndi Zosankha Zapamwamba Zomwe Zimakhalapo

38CrMoAlAndi zitsulo zoyambira zomwe timapangirako zomangira zathu, ndipo ndizosakhazikika pamakampani pazifukwa. Chromium-molybdenum-aluminium chemistry yake idapangidwira nitriding: aluminiyumu imapanga ma nitridi olimba, okhazikika pomwe pachimake chimakhala cholimba.

Chitsulo choyambira chimanyamula katundu wamakina. Pamwamba pamwamba pake pamatenga kuvala, ndipo ndipamene kusankha kwenikweni kuli. Monga ascrew mbiya wopangatimapereka mawonekedwe onse, ndipo iliyonse imayankha kuopseza kosiyana:

• Nitriding— 0.5–0.8 mm wosanjikiza pa 950–1050 HV. Oyera resins, galasi ulusi mpaka 30%.
• Bimetallic pamwamba— zitsulo zolimba zimalumikizana mozungulira pobowo, zofikira ku 62 HRC. Abrasive ndi corrosive ntchito.
• Tungsten carbide kupopera mbewu mankhwalawa- pamilandu yovuta kwambiri ya abrasion.
• Chrome plating- malo osalala, omasuka omasuka. Imathandiza kusintha mtundu ndi kumamatira, osati ndi abrasion kwambiri.
• Chitsulo chosapanga dzimbiri- pamene kukana dzimbiri kapena chiyero chakuthupi chimatsogolera chofunikira osati kuvala.

Chiwongolero chathu cha screw barrel chimafanizira zitsulo zoyambira kwathunthu.

Zochizira Pamwamba Poyerekeza

Tchulani pamwamba pa chakudya chauve chomwe mzerewo udzayendetse, osati ukhondo kwambiri. Kufotokozera zachikwama choyera ndi njira yodziwika kwambiri yomwe seti yatsopano imafera msanga.

Kukonza: Momwe Mungapezere Ola Lililonse lomwe Seti Ingapereke

Kusamalira sikubweza mavalidwe. Zimakulepheretsani kuwonjezera kuvala kolephereka pamwamba pa mtundu wosalephereka, ndipo kumakupatsani deta kuti mukonzekere m'malo mochitapo kanthu.

Mndandanda Wowunika Wanthawi Zonse

Njira Yoyeretsera Yoyenera Mukamasintha Ma Resins kapena Mitundu

Chotsani musanayambe kuyima kulikonse komanso kusintha kulikonse, popanda kupatula masiku otanganidwa. Zinthu zomwe zimasiyidwa kuti ziziziziritsa mkati mwa mbiya zimawonongeka, zimawotcha pamwamba, ndipo kenako zimabwereranso ngati madontho akuda kumbali ya kasitomala.

Gwiritsani ntchito makina otsuka malonda kuti asinthe mtundu, kuzimitsa, komanso musanasinthe polima wosamva kutentha. Virgin PE kapena PP amayendetsa kusintha kwanthawi zonse pakati pa zida zogwirizana. Utoto wotentha kwambiri monga PC ndi PMMA umagwira mwamphamvu ndipo umafunika kutsukidwa mwamphamvu.

Chotsani musanatseke, osati musanayambe. Zomwe mumasiya mu mbiya yozizirira zimakhala vuto lomwe mumalimbana nalo poyambitsanso.

Momwe Mungayesere Kuloledwa kwa Screw-to-Barrel

Uwu ndiye muyeso womwe umasintha malingaliro kukhala owona, ndipo masitolo ambiri amalumpha.

1. Kokani ndi kuyeretsa screw.Kutentha, ndi zida zamkuwa kapena zamkuwa. Osati zitsulo scrapers, amene kudula pamwamba mankhwala wononga zimadalira.
2. Lembani malo oyezerakutalika kwa ntchito: chakudya, kusintha, ndi mita osachepera.
3. Yezerani ndege ya ODyokhala ndi micrometer yakunja pamalo aliwonse, ndikuwerengera magawo angapo mozungulira kuzungulira kuti mugwire mavalidwe osagwirizana.
4. Yesani ID ya mbiyandi choyezera choboola pamalo ofanana ndi kuya.
5. Kuwerengera chilolezo cha radial:chotsani ndege ya OD kuchokera ku bore ID ndikugawaniza awiri.
6. Fananizani ndi zojambula zomangandi kulemba kuwerenga kulikonse ndi tsiku ndi maola kuthamanga.

Tanthauzirani zotsatira motsutsana ndi chilolezo choyambirira, osati motsutsana ndi nambala yapadziko lonse lapansi. Lamulo lothandiza m'sitolo: chilolezo chikakula kufika kuwirikiza kawiri mtengo womanga, kapena pamene zotuluka zatsika kwambiri pa liwiro lomwelo, yambani kukonza zosintha. Kalozera wathu woyezera pang'onopang'ono amafotokoza njirayo mwatsatanetsatane.

Ndondomeko Yoyeretsera ndi Mitundu Yotsuka Pamodzi

Gwirizanitsani gululo ndi ntchito. Makina (opanda abrasive) amatsuka scrub ndi kukhuthala kwakukulu. Mankhwala oyeretsa amawononga zinthu zowonongeka ndi carbon. Zotulutsa thovu zimakula kufikira malo akufa omwe ma laminar amatuluka.

Nthawi zoyera kwambiri zimadalira utomoni. Ma polima otentha kwambiri amamanga kaboni mwachangu ndipo amafunikira kuyeretsa mozama pafupipafupi. Chilichonse chomwe mungayendetse, sungani nthawiyo pa ndandanda m'malo modikirira madontho akuda kuti akukonzereni.

Nthawi Yokonzekera vs Nthawi Yosintha

Yerekezerani mtengo wa ntchito pachaka, osati ma tag awiri amitengo. Kumanganso komwe kumawononga theka la ndalama zambiri koma kumabweretsa gawo limodzi mwa magawo atatu azaka ndi njira yokwera mtengo yobisala.

Kukonza kutsamira kumanjakuvala kukakhala kowoneka bwino komanso kocheperako, chitsulo choyambira chimakhala chomveka, uku ndiye kumangidwanso koyamba, ndipo geometry imagwirizanabe ndi utomoni wanu.

Kusintha kumatsamira kumanjapamene dzimbiri zadzetsa kwambiri, pamene wononga kale kumangidwanso kale, pamene zinthu zanu zinasintha ndi geometry wakale sakukwaniranso, kapena pamene akonzedwa ndi kukula wamba amene m'malo mtengo amakhala pafupi ndi kukonza mawu.

Kalozera wathu wokonzanso vs wolowa m'malo akuwonetsa tebulo lathunthu.

Kusungirako Moyenera ndi Kusunga Migolo Yotsalira

Seti yotsalira imathandiza kokha ngati ili yowongoka komanso yoyera mukaifuna. Sungani zomangira mopingasa mothandizidwa ndi kutalika kwake, osatsamira nsonga. Zivekeni kuti zisakhale ndi dzimbiri, zisungeni, ndipo sungani pepalalo ndi ziwerengero za kuuma kwake ndi gawolo.

Njira yosinthira yosinthiraNdiwofunika kwambiri kuposa chindapusa chilichonse, ndipo palibe wogulitsa angakuuzeni izi. Gulani cholowacho chisanathe. Yambitsani seti yatsopano, tumizani yakaleyo kuti mumangenso pomwe kupanga kukupitilira, ndipo sungani zomangidwanso pashelefu ngati zotsalira.

Tsopano muli ndi kasinthasintha ndi ziro nthawi yopumira yosakonzekera, ndipo kusintha kulikonse kumachitika pandandanda yanu m'malo mwa 2 koloko Loweruka. Njirayi imawononga ndalama imodzi yogwirira ntchito ndikuibwezera nthawi yoyamba yomwe kuwonongeka sikunachitike.

Kodi Ndi Njira Kapena Makina? Chipata Chosankha

Nayi gawo lomwe palibe mpikisano amalemba, ndipo lidzakupulumutsirani nthawi yochulukirapo kuposa momwe bukuli likuphatikiza.

Pamene vuto lowumba likuwonekera, magulu ambiri amafika pazokonda zamakina. Kutentha, kuthamanga kwa msana, kuthamanga kwa jekeseni, nthawi yogwira. Nthawi zina ndiko kulondola. Koma pulasitiki ikatha, palibe kuyika komwe kumabweretsanso ndondomekoyi, ndipo masabata amatha kusaka komwe sikungapambane.

Thamangani chipata ichi musanakhudze malo ena.

Mayankho atatu kapena kupitilira "inde" pamafunso 3 mpaka 6 akutanthauza kuti makinawo akukuuzani kuti pulasitiki yavala. Siyani kukonza. Kokani wononga ndikuyesa.

Kuyeza kumatenga ola limodzi. Kuthamangitsa vuto la makina pamakonzedwe kumatenga milungu ingapo, ndipo sikumasinthasintha, chifukwa yankho silinali mu wowongolera.

Kuwongolera Mavuto ndi Root-Cause Table

Chilema chilichonse chili m'munsimu chikhoza kubwera kuchokera ku ndondomeko kapena kuchokera kumakina ovala. The table names thewononga ndi mbiyachifukwa chachikulu, chifukwa ndilo theka lomwe aliyense amasiya.

Black Streaks kapena Burn Marks

Polima wowonongeka akugona kwinakwake ndikusweka mzidutswa. Malo obisalamo achikale ndi malo obisika, chiboliboli, mphete yowonongeka, ndi malo aliwonse omwe adafa pomwe madzi amatuluka.

Chotsani kwambiri choyamba. Ngati madontho abwereranso pambuyo poyeretsa bwino, zinthuzo sizingokhala zotsalira. Ikupangidwa mosalekeza ndi malo m'makina anu, ndipo muyenera kukoka wononga ndikuipeza.

Kukula Kuwomberedwa Kosagwirizana kapena Kuwombera Kwachidule

Yang'anani mphete musanakhudze zoikamo. Vavu yosabwerera ikasiya kusindikiza, kusungunuka kumathawa cham'mbuyo panthawi ya jekeseni, ndipo kuwombera komwe makinawo ankaganiza kuti kuyeza si kuwombera kumene nkhungu imalandira.

Mphatso ndi khushoni. Njira yokhazikika imakhala ndi khushoni yokhazikika. Pamene khushoni akungoyendayenda kuwombera kuwombera, kusungunula akupita kwinakwake sayenera.

Sungunulani Kutentha kwa Spiking kapena Kukwera Kwambiri

Yezerani kusungunuka kwenikweni ndi kafukufuku m'malo modalira zoikamo. Ngati kusungunuka kwenikweni kumayenda bwino pamwamba pa madera, kutentha kowonjezera kumachokera kumeta, osati kuchokera kumagulu.

Kutentha kwa shear kumakwera pamene kukanikizana kuli koopsa kwambiri kwa utomoni, pamene liwiro la screw ndi lalitali kwambiri, pamene kupsyinjika kwa msana kuli kochuluka, ndipo pamene chomangira chophwanyika chiyenera kugwira ntchito molimbika kuti chisunthire chinthu chomwecho.

Pang'onopang'ono Screw Recovery / Long Plasticizing Time

Yambani pa hopper. Kutsekereza ma pellets, kutenthedwa kwapakhosi, ndi kuzizira kosakwanira kwa chakudya chonse kumapangitsa kuti chiwombankhanga chikhale chovuta ndikuchira, ndipo palibe chomwe chili ndi vuto.

Ngati chakudya chili chabwino ndipo kuchira sikuchedwa, yesani chilolezocho. Zomangira zomwe zasiya kugwira bwino ntchito kuti zivale zimatenga nthawi yayitali kuti zidzaze zomwezo, ndipo nthawi yozungulira imawonetsa.

Kukwera Kwagalimoto kapena Kupanikizika Kwammbuyo

Kukwera kwa ma amps pakutulutsa kosalekeza kumatanthauza kuti china chake chikukana. Chomangira chopindika chokokera pachibowocho ndichowopsa: chimavala mbali imodzi ya mbiya, ndipo sikona yatsopano yomwe imayikidwa motsutsana ndi kusokonekera kumeneko imavala chimodzimodzi pandandanda womwewo.

Yang'anani kuwongoka ndi kusinthasintha musanatumize chilichonse. Mbali imodzi yoboola ndi chala.

Kuwonongeka kwa Zinthu kapena Kuwonongeka

Zifukwa ziwiri zimalamulira: zinthuzo zatentha kwambiri, kapena zakhala zotentha kwa nthawi yayitali. Yachiwiri ndi imene anthu amaphonya.

Kuwombera komwe kuli kochepa kwambiri kuti masamba a mbiya asungunuke atakhala mkati mozungulira kuzungulira, kuphika mofatsa mpaka chikasu. Palibe phula lopanga lomwe limakonza kuwombera kocheperako mu mbiya yokulirapo. Konzani screw diameter, kapena sunthani ntchitoyo ku makina ang'onoang'ono.

Momwe Mungayitanitsire Mgolo Wowonjezera

Palibe mpikisano womwe umaphimba izi, ndipo ndi gawo lomwe ogula amafunikira. Kaya mumayitanitsa kuchokera ku OEM kapena kwa woyima pawokhascrew mbiya fakitale, zomwezo zimayendetsa mawuwo.

Makulidwe ndi Zomwe Muyenera Kupereka

• Mtundu wa makina ndi chitsanzo.Chithunzi cha nameplate ndichokwanira kutsimikizira kukula kwake komanso kumapeto kwa galimoto.
• Screw diameter ndi L / D chiŵerengero,kuchokera pajambula kapena kuyeza mwachindunji.
• Utomoni, wokhala ndi zodzaza.Izi zimayendetsa zitsulo zoyambira ndi chithandizo chapamwamba kuposa china chilichonse pamndandanda.
• Kukula kwa kuwombera ndi kuzungulira kwa chandamale,kotero geometry ikhoza kukonzedwa bwino m'malo mokopera.
• Chojambula, kapena chitsanzo chatha.Kapena ntchito. Gawo lowonongeka limatha kuyeza ndikukonzanso geometry yonse.
• Zomwe zidalakwika nthawi yapitayi.Tumizani chitsanzo chovala pamodzi ndi gawolo. Smooth dimension loss imanena kuti abrasion. Pitting akuti dzimbiri. Zovala zambali imodzi zimati kulinganiza, zomwe wononga zatsopano sizingakonze.

Chinthu chomalizacho ndi chomwe ogula amaiwala, ndipo ndi chomwe chimakulepheretsani kugula zolephera zokhulupirika.

OEM-Match vs Custom Design: Ubwino ndi kuipa

Kufanana kwa OEMimapanganso geometry yoyambirira. Ndiko kuyimba koyenera pamene wononga koyambirira kumagwirizana ndi njira yanu ndikungotha. Zodziwikiratu, zotsimikizika motsutsana ndi zojambulazo, palibe ndondomeko yotsimikiziranso.

Kupanga mwamakondaamasintha geometry kuti igwirizane ndi zomwe mukuyendetsa lero. Ndilo kuyimba koyenera pamene ndondomekoyo idasuntha ndipo wononga sichinagwire: mudawonjezera regrind, kusinthidwa kukhala giredi yodzaza, kusintha zomwe mukufuna, kapena screw yoyambirira sinagwire bwino utomoni wanu.

Kuyitanitsa machesi a OEM pamene ndondomeko yasintha kumabweretsanso vuto muzitsulo zatsopano. Kuyitanitsa mapangidwe achikhalidwe pomwe choyambirira chinali chabwino kumawonjezera mtengo ndikutsimikiziranso pachabe. Mavalidwe amakudziwitsani momwe mulili.

Zomwe Muyenera Kuyembekezera Mukamagula Zochokera ku China

Nthawi yotsogolera imadalira geometry, chithandizo chapamwamba, komanso ngati chojambula chilipo. Funsani molemba ndi mawu anu, ndipo funsani kuti wotchi imayambira pati: kutsimikizira chojambula, kapena dongosolo logulira. Sali tsiku lomwelo, ndipo kusiyana nthawi zambiri kumakhala sabata.

Zinthu zitatu zomwe muyenera kuzilemba musanachite:

• Kupanga kukayamba.Reverse-engineering chitsanzo chong'ambika chimawonjezera nthawi chipu chimodzi chisanadulidwe. Chojambula chimachotsa sitepe imeneyo.
• Zomwe mankhwala apamwamba akuwonjezera.Bimetallic pamwamba ndi kupopera carbide ndi njira zosiyana ndi mzere wawo.
• Zonyamula panyanja, padera.Sili mu nthawi yotsogolera kupanga, ndipo ndi nambala yomwe imadabwitsa ogula koyamba.

Mawu athu amawonekera poyera ndi kapangidwe kake: timapereka ndalama zofananira zomwe zimagulitsidwa, kutumiza, ndi kukonza kosalekeza, kotero palibe chomwe tingazindikire pambuyo pake. Mumapeza mawu amenewo mkati mwa maola 12.

Konzani mozungulira nthawi yotsogolera ndi kasinthasintha wokhazikika komwe tafotokoza kale. Seti yoyitanidwa kuchokera ku chipika chonyamula katundu pa ndandanda yanu. A seti analamulidwa zombo zosweka ndi wotchi, pa ndege, pa mtengo palibe amene amasangalala kufotokoza.

Zoyenera Kulandila Ubwino ndi Zowunikira

Awa ndi macheke omwe amalekanitsa wogulitsa weniweni ndi wotsika mtengo. Afunseni polemba musanayike dongosolo, ndipo mutsimikizireni ikafika:

• Kunja kwapakati pazigawo zingapo paulendo uliwonse
• Kutalika kwapakati ndi cylindricity
• Pamwamba kuuma ngati amtengo woyezedwa(HV kapena HRC), osati ndandanda
• Kuzama kwa nitrided kesi, kapena kuya kwa alloy layer pa bimetallic bore
• Concentricity ndi kuwongoka
• Kuuma pamwamba (Ra)
• Base zitsulo kalasi, anatsimikizira

Kuuma ndi kuzama kwamilandu ndizo ziwiri zofunika kwambiri, ndipo ziwirizo nthawi zambiri zimatsitsidwa mwakachetechete. Nayitrodi wosanjikiza wa 950–1050 HV ndi 0.5–0.8 mm kuya ndi njira yomwe mungagwiritsire ntchito wogulitsa. "Nitrided" palokha si.

Ngati mawuwo afika pansi kwambiri pa ena, funsani kuti chitsulocho ndi chiyani komanso momwe mankhwalawo amayambira. Apa ndi pomwe pali kusiyana komwe kumabisala, ndipo mumabweza mutangovala koyambirira.

Kusanthula kwathu kwathunthu kumakhala mu kalozera wa screw barrel order.

Mafunso Ofunsidwa Kawirikawiri

Q: Kodi mbiya yopangira jekeseni imakhala nthawi yayitali bwanji?

A: Pa ma resin osawononga monga PE ndi PP, zomangira zathu za nitrided 38CrMoAlA zimayendetsa pafupifupi maola 10,000-20,000. Zopangidwa ndi galasi, PVC, ndi regrind yolemetsa imadula, ndipo kutalika kwake kumadalira zomwe zimadzaza ndi zotuluka. Osathamanga wotchi ndi chiyembekezo: muyeso. Yang'anani ndege ya OD ndi ID yonyamula katundu motsutsana ndi zojambulazo kamodzi pachaka pa ntchito yowonongeka, ndikulemba zomwe zikuchitika. Zomwe zikuchitika, osati kuchuluka kwa maola, zimakuuzani nthawi yoyitanitsa seti yotsatira.

Q: Kodi chilolezo chokhazikika pakati pa screw ndi mbiya ndi chiyani?

A: Palibe chifaniziro chimodzi, chifukwa mamba a chilolezo chokhala ndi screw diameter. Lamulo lamakampani la seti yatsopano ndi pafupifupi 0.001 inch of radial clearance per side inchi iliyonse ya screw diameter, kotero 60 mm screw imatera pafupi ndi 0.06 mm mbali iliyonse. Kujambula kwanu ndiulamuliro. Monga malire a ntchito, pamene chilolezo choyezedwa chakula kufika pafupifupi kuwirikiza kawiri mtengo wa kumanga, kapena zotuluka zatsika kwambiri pa liwiro lomwelo, konzani zosintha.

Q: Kodi ndingagwiritsire ntchito screw imodzi pama resin angapo osiyanasiyana?

Yankho: M’banja, inde. Zomangira zomwe zimagwiritsidwa ntchito nthawi zonse zimanyamula PE, PP, PS, ndi ABS movomerezeka, ndichifukwa chake opanga makina amatumiza ngati muyezo. M'mabanja onse, ayi. GP screw pa PVC yolimba imawononga zinthu ndikuwononga chitsulo. Siloni ya GP pa nayiloni yodzaza galasi imatha msanga. Ndipo screw size ya voliyumu imodzi yowomberayo sichitha kugwira ntchito yomwe imagwiritsa ntchito kachigawo kakang'ono ka mbiya popanda kuphika zinthuzo. Ngati ma resin anu atalikirana ndi mipata imeneyo, mumafunika zomangira zingapo, kapena zomangira zomwe zimapangidwira zovuta kwambiri.

Q: Ndingadziwe bwanji ngati jekeseni yanga yopangira jekeseni yatha?

A: Makina amakuuzani poyamba, ndipo micrometer imatsimikizira. Yang'anani kutulutsa kutsika pa liwiro lomwelo wononga, kutambasula kwa nthawi yochira, kukwera kwa kutentha kosasinthika, madontho akuda omwe amabwerera pambuyo poyeretsa, ndi kuwombera kukula kwake. Chilichonse cha izo chilungamitsa kukoka wononga. Kenako yesani kuwuluka kwa OD ndi micrometer ndi ID yoboola ndi choyezera, pamalo ofananira, ndikuyerekeza chilolezo cha radial motsutsana ndi chojambulacho. Zizindikiro zimasonyeza; kuyeza kumatsimikizira.

Q: Kodi bimetallic screw mbiya ndi chiyani ndipo ndiyenera kuifuna liti?

Yankho: Mgolo wa bimetallic umasunga thupi lachitsulo cha aloyi ndikuphatikiza chowonjezera cholimba mu bobo. Pamigolo yathu timawaza molimba mozungulira mozungulira pobowo, zomwe zimapangitsa kuti mkati mwake mukhale kulimba ku 62 HRC. Mzerewu ndi wosavuta kujambula:Ulusi wagalasi mpaka 30% umayenda bwino pa seti ya nitrided 38CrMoAlA. Magalasi opitilira 30%, okhala ndi mineral filler kapena retardant flame, kapena pa corrosive resin, pitani bimetallic. Botolo la nitrided ndi 0.5-0.8 mm diffusion wosanjikiza, ndipo zodzaza zolemera zimadula modutsa kale chitsulo pansi chisanamalize.

Q: Kodi mapangidwe a screw amakhudza mbali yamtundu wa jakisoni?

A: Mwachindunji, ndi zambiri kuposa zoikamo zambiri ndondomeko. Screw geometry imatsimikizira momwe zinthuzo zimasungunuka kwathunthu, momwe kutentha kwasungunuka kulili kofanana, momwe mtundu ndi zodzaza zimabalalika bwino, komanso momwe kuwomberako kumayendera. Zosasungunuka, mikwingwirima, splay, kuwonongeka, ndi kusiyanasiyana kwa kuwombera zonse zimatengera kapangidwe ka zomangira kapena zomangira nthawi zambiri zikamabwerera kwa wowongolera. Pamene chilema chimatsutsa kusintha kulikonse komwe mumapanga, geometry kapena kuvala nthawi zambiri kumakhala chifukwa.

Q: Kodi pali kusiyana kotani pakati pa screw screw ndi extrusion screw?

A: Zomangira za extrusion zimazungulira mosalekeza ndipo mapampu amasungunuka patsogolo osayima. Sirafu ya jakisoni imagwira ntchito ziwiri: imazungulira kuti ipangitse kuwombera pulasitiki, kenako imasiya kuzungulira ndikuyendetsa kutsogolo ngati plunger kuti ibaye. Kubwerezaku n'chifukwa chake zomangira jekeseni zimakhala ndi cheke kunsonga, ndi chifukwa chake zimafupikitsa L/D ma ratios, nthawi zambiri 18:1 mpaka 25:1, kuposa zomangira zotulutsa. Zinthuzi zimakhalanso mumgolo wa jakisoni pakati pa kuwombera, zomwe zimapangitsa nthawi yokhalamo komanso kukula kwa kuwombera kukhala kofunikira.

Q: Kodi wopanga mbiya zomangira angakope skruru yanga popanda chojambula?

A: Inde. Tumizani gawo lowonongeka ndi geometry imatha kuyezedwa ndikumangidwanso: m'mimba mwake, chiŵerengero cha mawonekedwe, kuya kwa njira, ndi miyeso yoyenera kumapeto kwa galimoto. Timagwira zomangira jakisoni mpaka ±0.001 mm. Chenjezo limodzi loyenera kutchula: skruu wonyezimira wocheperako kuposa momwe adachoka kufakitale, motero cholowacho chiyenera kumangidwa molingana ndi cholinga choyambirira m'malo mokhala ndi miyeso yakaleyo. Tumizani mavalidwewo pamodzi ndi gawolo, ndipo zomangira zatsopano zimatchulidwa motsutsana ndi kulephera m'malo mozilandira.

Mapeto

Malingaliro atatu ali ndi kalozera wonse.

Kusankhidwa kumatsatira utomoni.Geometry (L/D, compression ratio, screw type) imagwirizana ndi momwe polima yanu imasungunuka. Chithandizo chapamtunda chimafanana ndi momwe chakudya chanu chilili chonyansa. Ma resin oyera amathamanga mosangalala pa nitrided 38CrMoAlA. Zakudya zowononga ndi zowononga zimafunika kukhala ndi bimetallic bore, ndipo kutchula choyera ndi njira yofala kwambiri yomwe mbewu yatsopano imafera msanga.

Kusamalira kumagula zaka, ndipo deta imagula kukonzekera.Tsukani musanayime kulikonse, yeretsani ndi mkuwa osati chitsulo, ndipo yesani malowo nthawi zonse pamene wononga. Chipika chovala chimatembenuza "kodi chavala?" mu "idzawoloka liti?", Umenewu ndi kusiyana pakati pa kusintha kokonzedwa ndi kutseka.

Dziwani makina musanayitanitse ndondomekoyi.Zotulutsa zikatsika, mikombero imatambalala, khushoni ikuyendayenda, kapena timadontho tibwerera pambuyo poyeretsa, gawo lopangira pulasitiki likulankhula. Zokonda sizingabwezeretse chilolezo chomwe chidatayika kapena kusindikizanso mphete yong'ambika. Kokani wononga ndikuyesa.

Nanhaiya wamanga zomangira ndi migolo kwa zaka zopitilira 20 ndipo amatumikira makasitomala 500+ padziko lonse lapansi. Zomangira zathu zimapangidwa kuchokera ku 38CrMoAlA, kuzimitsidwa ndi kutenthedwa, kenako kuthiridwa gasi pa 500–560 °C kufika pa 0.5–0.8 mm ponse pa 950–1050 HV, kupirira ±0.001 mm, ndi kuvoteledwa kwa maola 000-00-10, osapitirira utomoni. Kumene chakudya chimakhala cholimba, timapopera zitsulo zolimba mozungulira mozungulira pobowo ndipo kulimba kwake kumafika pa 62 HRC.

Musanayitanitsa, mainjiniya athu amagwira ntchito limodzi ndi inu: m'mimba mwake, kuchuluka kwa mawonekedwe, kuya kwa tchanelo, ndi kusankha kwazinthu pakati pa 38CrMoAlA ndi alloy duplex. Kukambirana kumeneko ndikwaulere, ndipo mawu otsatirawa akuphatikiza malonda, kutumiza, ndi mtengo wokonzekera, kotero palibe chomwe chikuwoneka pambuyo pake chomwe sichinali patsamba.

Pambuyo pobereka, akatswiri athu amathandizira kukhazikitsa ndi kutumiza, chitsimikizo chimayenderana ndi mgwirizano (nthawi zambiri chaka chimodzi kapena ziwiri), ndipo nkhani iliyonse ikatha kugulitsa imayankhidwa mkati mwa maola 24 ndi yankho mkati mwa 48.

Titumizireni mtundu wamakina anu, utomoni, ndi vuto lomwe mukuyesera kuthetsa. Mudzakhala ndi ndondomeko ndi mawu pasanathe maola khumi ndi awiri.