Uhlobo lwe-screw barrel engilukhethayo luthinta kakhulu izinqubo zokubumba, ikakhulukazi uma usebenzisa i-Umshini webhodlela ovuthela i-PC. A ekhethwe kahlevuthela umphongolo wesikulufakuthuthukisa ukusebenza kahle kokukhiqiza kuyilapho kunciphisa amazinga e-scrap. Ukuqondanisa ukukhetha kwami nezidingo ezithile zokukhiqiza kuqinisekisa ukusebenza kahle, ikakhulukazi uma usebenzisa imishini efana neUmshini Wokubumba Welula Wokujova.
Uhlolojikelele lwemiphongolo yokuphehla isikulufu
Incazelo kanye Nomsebenzi
Umphongolo wesikulufa ovuthelayo uyingxenye ebalulekile enqubweni yokubumba igalelo. Isebenza njengomsele lapho izinto ezingavuthiwe, ngokuvamile i-thermoplastics, ziguqulwa zibe imikhiqizo esebenzisekayo. Idizayini ye-screw barrel ithonya ngokuqondile i-shear ezintweni, ezithinta izinga lokushisa elincibilikayo. Lobu budlelwano bubalulekile ukuze kuzuzwe ukwakheka kwesonto elilungile kanye nokunciphisa izikhathi zomjikelezo. Ngithole ukuthi ukusebenzisa isikulufu esidizayinelwe ngokukhethekile okokusebenza, njenge-HDPE noma i-PP, kuthuthukisa kakhulu okukhiphayo nokusebenza kahle. Isikulufu senhloso evamile singase sonakalise ukusebenza, okuholela ekungasebenzini kahle.
Iqhaza Ekubumbeni iBlow
Ekubumbeni igalelo, umphongolo wesikulufa ovuthelayo udlala indima ebalulekile ekuqinisekiseni ukufana kwezinto. Okulandelayoizici zineqhaza kulesi sici esibalulekile:
| Isici | Umnikelo ku-Material Homogeneity |
|---|---|
| Ukugeleza Kwezinto Ezingaguquguquki | Ibalulekile ekukhiqizeni amabhodlela ekhwalithi ephezulu anamapharashini afanayo. |
| I-Melt Homogeneity Ethuthukisiwe | Kutholwe ngokusebenzisa i-helical grooves kanye nezikulufu zokuvinjelwa, okuqinisekisa ngisho nokuncibilika. |
| Ukwenza ngokwezifiso Imiklamo | Eyakhelwe ama-resin athile, yehlisa izinsalela futhi ithuthukisa ikhwalithi yengxenye. |
| Ukulawula izinga lokushisa | Igcina ukugeleza kwezinto ezifanele, ivimbela ukuncibilika okungalingani kanye nokuwohloka. |
Amathrendi amanje kubuchwepheshe be-screw barrel, njengokuthuthukiswa kwemiphongolo ye-bimetallic, ithuthukisa ukuqina nokusebenza. Lokhu kuthuthukiswa, kanye nezinhlelo zokushisisa nokupholisa ezithuthukisiwe, kunomthelela ekulawuleni izinga lokushisa okungcono ngesikhathi sokucubungula. Ngiqaphele ukuthi lezi zindlela ezintsha ziholela ezindlekweni zokusebenza ezincishisiwe kanye nekhwalithi yomkhiqizo ethuthukisiwe, okwenza ukukhetha okulungile kokufutha umphongolo wesikulufa kubaluleke nakakhulu.
Izinhlobo Zemiphongolo Yokuvuthela Isikulufu
I-Single-Screw Barrels
Imiphongolo yesikulufu esisodwaziphakathi kwezinhlobo ezivame ukusetshenziswa ekubumbeni igalelo. Ngiyabazisa ubulula nokusebenza kwabo ekuncibilikiseni nasekuxubeni izinto zokusetshenziswa. Le miphongolo iqinisekisa ukunyakaza okuzinzile kokuncibilika kwepulasitiki ngesikhathi sokukhiqiza, okubalulekile ekugcineni ingcindezi nokugeleza. Ngibonile ukuthi zisebenza kahle kakhulu ezimbonini ezahlukahlukene, kufaka phakathi:
| Imboni | Incazelo Yohlelo Lokusebenza |
|---|---|
| Imboni Yepulasitiki | I-extrusion kanye nokubunjwa komjovo wamapayipi, amashidi, namaphrofayili. |
| Imboni yokupakisha | Izinhlelo zokusebenza zokubumba ifilimu, ishidi, nokuvuthela. |
| Imboni Yezimoto | Ukwenziwa kwezingxenye zepulasitiki nezingxenye zangaphakathi. |
| Imboni Yezokwakha | Ukukhishwa kwamapayipi e-PVC, amaphrofayli efasitela, namashidi okufakelwa. |
| Imboni Yokugaywa kabusha | Ukucutshungulwa kwemfucuza yepulasitiki ibe ama-granules asebenziseka kabusha. |
Idizayini yomphongolo we-screw eyodwa ivumela ukuncibilika okusebenzayo, okubalulekile ekukhiqizeni imikhiqizo ebunjwe ngokushaywa kwekhwalithi ephezulu. Ngithola ukuthi zisebenza kahle kakhulu lapho zisebenza ngezinto ezifana ne-HDPE ne-PP, njengoba zinikeza ukulawula okudingekayo phezu kokuncibilika kokuncibilika.
Ama-Twin-Screw Barrels
Imiphongolo ye-twin-screw inikeza izinzuzo ezibalulekile ngaphezu kwemiklamo ye-screw eyodwa, ikakhulukazi mayelana nokuxuba nokucubungula impahla. Ngizibonele mathupha ukuthi izikulufu zazo ezihlanganisayo zidala kanjani isenzo sokuzesula, esithuthukisa ukusebenza kahle kokuxuba. Lesi sici siqinisekisa ukuhlakazeka okuphelele kwezithasiselo nemibala, okuholela kukhwalithi yomkhiqizo ofanayo.
| Isici | I-Twin-Screw Extruder | I-Single-Screw Extruder |
|---|---|---|
| Ukuxuba Ukusebenza kahle | Ikhono lokuxuba eliphakeme ngenxa ye-meshing nokujikeleza | Ikhono eliphansi lokuhlanganisa |
| Ukuzinza Kwezinto ezibonakalayo | Igcina ukuzinza nokufana ngesikhathi sokucubungula | Ukuzinza kancane ngesikhathi sokucubungula |
| Isivinini Sokukhipha | Isivinini se-extrusion esisheshayo | Isivinini se-extrusion esinensa |
| Ukusetshenziswa kwamandla | Ukusetshenziswa kwamandla okuphansi ngeyunithi ngayinye okukhiphayo | Ukusetshenziswa kwamandla okuphezulu |
Emisebenzini yokubumba igalelo eliphezulu, imiphongolo ye-twin-screw iphuma phambili ngenxa yamandla ayo okuhlanganisa athuthukisiwe kanye nokuphuma okuphezulu. Ngithole ukuthi angakwazi ukuphatha izinto ezahlukahlukene, kufaka phakathi ama-polymers ane-viscosity ephezulu kanye nezinhlanganisela ezizwela ukushisa, okuwenza aguquguquke ekusetshenzisweni okuhlukahlukene.
I-Barrier-Screw Barrels
Imiphongolo ye-Barrier-screw idlala indima ebalulekile ekulawuleni ukuncibilika nokucindezelwa ngesikhathi sokubumba. Idizayini yabo ihlanganisa iziteshi ezihambisanayo ezisiza ukuguqulwa kancane kancane kwama-pellets aqinile abe yincibilika. Lo mklamo uthuthukisa ukusebenza kahle kwamandla futhi uqinisekisa ukulawula okungcono kokuncibilika kokuncibilika, okubalulekile ekukhiqizeni imikhiqizo yekhwalithi ephezulu.
Izinzuzo zokusebenzisa imiphongolo ye-barrier-screw zifaka:
- Ukuncibilika okuthuthukisiwe nokusebenza kahle kokuxuba.
- Ukulawulwa kwezinga lokushisa okuthuthukisiwe, okuvimbela ukuwohloka kwezinto ezibucayi.
- Ukunciphisa ukugeleza kokudonsa, okuholela kukhwalithi engcono yokuncibilika.
Ngiqaphele ukuthi le miphongolo ithinta kakhulu ikhwalithi yemikhiqizo eqediwe ebunjiwe. Zisiza ukugcina i-viscosity ye-ncibilika engaguquki, ebalulekile ukuze kuzuzwe ukujiya kwezindonga ezifanayo kanye nobuqotho bomkhiqizo jikelele.
Imiphongolo Yokuxuba-Screw
Imiphongolo yokuxuba-isikulufa iklanyelwethuthukisa umbala kanye nokuhlakazeka okungeziweekubumbeni igalelo. Ngivame ukusebenzisa i-barrier kanye nemiklamo ye-Maddock, njengoba iqinisekisa ukufana okuncibilika okungcono futhi ivimbele izingcezu ezingancibiliki ukuthi zivale uhlelo. Leli khono liholela ekushiyekeni okumbalwa kanye nokuvumelana kombala okuthuthukisiwe emikhiqizweni yokugcina.
Izinzuzo zokuhlanganisa-screw imiphongolo zihlanganisa:
- Ukwenza ngcono ukuncibilika kokuncibilika, kunciphisa ukuwohloka kokushisa.
- Ikhwalithi yokuxuba ethuthukisiwe, okuholela ekuhlanganiseni okungcono kwama-polymer blends.
- Ukulawula okungcono phezu kwengcindezi nokugeleza, okuqinisekisa ukunemba kobukhulu.
Ngithola ukuthi le miphongolo inenzuzo ikakhulukazi uma isebenza nezingxube ze-polymer eziyinkimbinkimbi, njengoba ihlinzeka ngokuhlukahluka okudingekayo nokusebenza kahle kokukhiqizwa kwekhwalithi ephezulu.
Ukukhetha I-Right Blowing Screw Barrel
Izinto Okufanele Zicabangele
Lapho ngikhetha umphongolo wesikulufa ovunguzayo, ngicabangela izici ezimbalwa ezibalulekile ukuze ngiqinisekise ukusebenza kahle. Uhlobo ngalunye lwe-polymer lunezidingo ezihlukile ezithonya ukukhetha kwami. Nazi ezinye izinto ezibalulekile ezicatshangelwayo:
- Ukuhambisana Kwezinto ezibonakalayo: Ama-polymer ahlukene adinga imiklamo ethile yesikulufu. Isibonelo, uma ngisebenza ne-PMMA, ngikhetha isikulufu esinesilinganiso sobude ukuya kobubanzi obungu-20-22 kanye nesilinganiso sokuminyanisa esingu-2.3 kuya ku-2.6. Ku-PET, ngikhetha isikulufu esiphansi se-shear esinesilinganiso sokuminyanisa esingu-1.8-2, sigwema indawo yokuxuba ekugcineni. I-PVC idinga idizayini yokugunda ephansi enezinto ezingagqwali kanye nesilinganiso sobude ukuya kububanzi obungu-16-20.
- I-Screw Geometry: Ijiyomethri ye-screw barrel ithinta kakhulu ukucubungula. Ngivame ukubhekisela ku-Ithebula elilandelayo ukuze liqondise izinqumo zami:
| Uhlobo Lwesikulufa | Isilinganiso se-L/D | Incazelo Yohlelo Lokusebenza |
|---|---|---|
| Inhloso Ejwayelekile | ~20:1 | Ifanele amapulasitiki avamile kodwa ingase ibonise ukuhluka kombala. |
| Izikulufo Zesithiyo | ~24:1 | Ithuthukisa ukuxutshwa kwamapulasitiki aqinisiwe. |
| Izikulufo zokuhlukanisa | ~18:1 | Isiza izinto ezizwela ukushisa zigweme ukuwohloka. |
| Ukuxuba Izikulufa | ~22:1 | Ihlinzeka ngokuncibilika okufanayo kwamapulasitiki akhethekile. |
- Izimo Zemvelo: Ngiphinde nginake izinga lokushisa kanye nomswakama wegumbi lomshini. Ukugcina indawo ezinzile kusiza ukuvimbela ukungasebenzi kahle kwemishini. Ngiyaqinisekisaizinga lokushisa lihlala phakathi kuka-25℃ -30℃ kanye nomswakama ku-40% -60%.
Umthelela Ekukhiqizeni Ngempumelelo
Umphongolo wesikulufa ovunguzayo ungathuthukisa kakhulu ukusebenza kahle kokukhiqiza. Ngibonile ukuthi isikulufu esiklanywe kahle silungiselela isikhathi somjikelezo ngokuqondanisa nezinhloso zephrosesa. Nazi ezinye izici ezinomthelela ekusebenzeni kahle:
- I-Screw Geometry: Lonaipharamitha ebaluleke kakhulu ethinta ukuphumakanye nokuthuthukiswa kwengcindezi. Idizayini efanele ingaholela emazingeni okukhiqiza asheshayo.
- Amaphrofayili Okushisa: Ngithola ukuthi amaphrofayela okushisa afanele asekelwe ekwakhiweni kwesikulufa athuthukisa ukusebenza kahle kwamandla, okuthinta ngokungaqondile isikhathi somjikelezo. Idizayini yesikulufu ethuthukisiwe inikela ekuzinzeni ngenkathi kubhekwana nezinhloso zesikhathi somjikelezo.
- Indawo Yokucindezela: Indawo yokuminyanisa idlala indima ebalulekile ekusebenzeni, ikakhulukazi kumafrikhwensi wokuzungezisa ngezikulufu. Ngiyaqinisekisa ukuthi idizayini iqondana nokukhiqizwa kwami kudinga ukukhulisa okukhiphayo.
Umthelela Kwikhwalithi Yomkhiqizo
Ukukhethwa komphongolo wesikulufa kuthinta ngqo ikhwalithi yomkhiqizo wokugcina. Ngigxila ezicini ezimbalwa zokuqinisekisa imiphumela yekhwalithi ephezulu:
- Melt Quality: I-screw barrel eklanywe kahle igcina i-viscosity encibilikayo engaguquki, ebalulekile ukuze kuzuzwe ukujiya kodonga olufanayo. Lokhu kuvumelana kuholela ekuthembekeni okungcono komkhiqizo.
- Ukusetshenziswa kwamandla: Ukusebenza kahle kwesikulufu kanye nesistimu yomgqomo kubalulekile ekusetshenzisweni kwamandla. Ngifunde ukuthi ukuguga kungaholela ekungasebenzini kahle, kukhuphule ukusetshenziswa kwamandla njengoba igebe phakathi kwesikulufa nomgqomo likhula. Lokhu kuthinta izinga lokuncibilika futhi kudinga amandla engeziwe ukuze kugcinwe ukukhiqizwa.
- Izinqubo Zokuhlola: Ngihlala ngihlola futhi ngiqaphe amapharamitha enqubo ebalulekile njengokucindezela, izinga lokushisa, nesivinini sesikulufu. Le ndlela yokwenza izinto ingisiza ukuthi ngibone izinkinga kusenesikhathi futhi ngigcine ikhwalithi yomkhiqizo.
Ngokucabangela lezi zici ngokucophelela, ngingakhetha umphongolo wesikulufa ovuthwayo ofanele oqondana nemigomo yami yokukhiqiza futhi eqinisekisa ukuphuma kwekhwalithi ephezulu.
Ukukhetha uhlobo lwe-screw barrel olulungile kubalulekile ekuthuthukiseni izinqubo zokubumba i-blow. Ngiyakukhuthaza ukuthi uhlole izidingo zakho zokukhiqiza ngaphambi kokwenza isinqumo.
Inani elikhokhelwe le ngxenye liyisiqalo nje. Impilo yokusebenza komgqomo ingaba mfushane ngendlela edabukisayo, kuye ngokuthi yakhiwe futhi yasetshenziswa kanjani.
Ukukhetha okunolwazi kuholela ekunakekeleni okuncishisiwe nesikhathi sokuphumula, okuqinisekisa izinzuzo zezindleko zesikhathi eside zomsebenzi wakho.
FAQ
Yiziphi izici ezithonya ukukhethwa komgqomo wesikulufa ovuthelayo?
Ngicabangela ukuhambisana kwezinto, i-screw geometry, nezimo zemvelo lapho ngikhetha umphongolo wesikulufa ophephethayo.
Ingabe i-screw barrel ikuthinta kanjani ukusebenza kahle kokukhiqiza?
I-screw barrel eklanywe kahle ilungiselela isikhathi somjikelezo, ithuthukise ukusebenza kahle, futhi ithuthukise ukusebenza kahle kwamandla, okuholela emazingeni akhuphukayo okukhiqiza.
Ingabe uhlobo lwe-screw barrel lungaba nomthelela kukhwalithi yomkhiqizo?
Yebo, umphongolo wesikulufa olungile ugcina i-viscosity encibilikayo engaguquki, iqinisekisa ukujiya kodonga okufanayo kanye nobuqotho bomkhiqizo wonke.
Isikhathi sokuthumela: Sep-17-2025