Plastics

Inqubo yokujova inaliti blowing (IBM) isetshenziselwa ukwenziwa kwengilazi engenalutho nezinto zepulasitiki ngamanani amakhulu. Ngenqubo ye-IBM, i-polymer ifakwa umjovo wepiyili oyisisekelo; lapho-ke iphini lomgogodla ligijinyiselwa esiteshini sokubumba esinamapayipi ukuze lishiswe futhi lipholisiswe. Lokhu kusetshenziswa okungatheni kulezi zinqubo ezintathu zokubumba ukushaya, futhi kuvame ukusetshenziselwa ukwenza amabhodlela amancane ezokwelapha nawodwa. Inqubo ihlukaniswe ngezinyathelo ezintathu: umjovo, ukushaya kanye ne-ejection.

I-Spray coating coating, ubuchwepheshe obusetshenziselwa ukumboza ingaphezulu kwebhodlela ukuze uthuthukise izindawo ezinamaphiko eziphathwayo nezikhanyayo. Le ndlela isebenza kahle kakhulu ngokuqhathanisa izengezo ngaphakathi kwamabhodlela noma ama-preforms, ngoba azithinti izakhiwo ezibonakalayo. Imvamisa, izengezo zinomthelela

Le ndatshana ichaza ukusetha kokuhlola kumodeli yokuqhathanisa ukukala umthelela womoya ovuthayo, kanye nokuhlola izindleko zomoya ocindezelwe ngokumelene nokuthola okupholile kokuzuza.

Ekushayeni ukubumba ingcindezi yokushaywa kubaluleke kakhulu. Isihloko esivela eNyuvesi yase-Aachen esinemodeli yokucabanga ngokubaluleka kwengcindezi ekusebenzeni kwejometri engaphezulu.

Ukufakwa ngenaliti (ukujova ngomjovo e-USA) inqubo yokukhiqiza yokukhiqiza izingxenye ngokujova impahla kukhunta. Ukufakwa kokulimala kungenziwa ngezinto eziningi, kufaka phakathi izinsimbi, (lapho inqubo ibizwa ngokuthi i-diecasting), izingilazi, ama-elastomers, ukuhlangana, kanye nama-polymer evamile kakhulu we-thermoplastic kanye ne-thermosetting.

Lokhu kunezindlela ezimbili eziyinhloko ezehlukene, okungukuthi inqubo yesigaba esisodwa nesigaba esimbili. Inqubo yesigaba esisodwa iphinde yehlukaniswe yaba imishini yesiteshi esine-3 kanye nesiteshi esine-4 Enqubeni yezinqubo ezimbili zomjovo wokunwebeka komjovo (ISBM), ipulasitiki iqale ibunjwe ibe yi "preform" kusetshenziswa inqubo yokubumba umjovo. Lawa ma-preform akhiqizwa ngezintamo zamabhodlela, kufaka phakathi imicu ("ukuphela") ngakolunye uhlangothi. Lawa ma-preform afakwa emaphaketheni, bese ondliwa ngokuhamba kwesikhathi (ngemuva kokupholisa) kumshini wokubumba wokuphinda usebenzise kabusha. Enqubeni ye-ISB, ama-preforms ayashiswa (imvamisa kusetshenziswa ama-infrared heater) ngaphezu kokushisa kwengilazi yabo yokushintshwa, bese kushaywa kusetshenziswa umoya ophakeme kakhulu ube ngamabhodlela kusetshenziswa isikhunta segalelo lensimbi. I-preform ihlala yelulwa ngenduku eyinhloko njengengxenye yenqubo.

Ukutholwa kokuvuza kwepayipi kusetshenziselwa ukuthola ukuthi kanti kwezinye izikhathi lapho kuvuza khona kwenzeka ezinhlelweni eziqukethe uketshezi nezibuko. Izindlela zokutholwa zifaka ukuhlolwa kwe-hydrostatic ngemuva kokuqanjwa kwamapayipi nokutholwa okuvuzayo ngesikhathi senkonzo.

Izimpahla ezihambisa umzimba zenzelwe ukuba zikwazi ukuphatha amabhodlela epulasitiki anzima kakhulu kunabahambisi bethu, futhi ukwazi ukuwahambisa kalula.

Ukufaka ilebuli ngemuva kwemishini yokubumba ngokushaywa kungaholela ekulebhuleni kwelebula, ngenxa yokugoba ibhodlela. Kunezindlela ezahlukahlukene zokuthuthukisa / zokuxazulula lezi zinkinga.

Ngalesi sihloko, sizama ukunikeza umbono ophelele ngamathuba wokupakisha amabhodlela emabhokisini.
Lapho isetshenziswa, izinzuzo nezinkinga ezivela kuzo zonke izixazululo nokuthi imiphi imishini etholakalayo.