Ngokwezindlela ezahlukahlukene zezingxenye zepulasitiki zokubumba nokucubungula, kungahlukaniswa ngezigaba ezilandelayo:
· Isikhunta
Isikhunta somjovo sibizwa nangokuthi isikhunta somjovo. Inqubo yokubumba yalokhu isikhunta ibonakala ngokubeka impahla eluhlaza epulasitiki emgqonyeni wokushisa womshini wokujova. Ipulasitiki iyashukunyiswa futhi incibilikiswe, futhi iqhutshwa isikulufa noma i-runger yomshini wokujova, ingena kwi-main cave ngokusebenzisa i-nozzle kanye nohlelo lokubumba, ukulungiswa kwengcindezi, ukupholisa nokuqina. Njengoba ukufudumeza nokucindezela kwedivaysi kungasebenza ezigabeni, ukubumba komjovo akukwazi nje kuphela ukuthi kwakha izingxenye zepulasitiki ngezimo eziyinkimbinkimbi, kepha futhi kunokusebenza kahle kokukhiqiza okuphezulu nekhwalithi enhle. Ngakho-ke, ukubumba kokujoyina kuthatha ingxenye enkulu ekubumbeni izingxenye zepulasitiki, kanye nemijovo isikhunta i-akhawunti ngaphezulu kwengxenye yezikhunta zokubumba zepulasitiki. Imishini yokujoveka isetshenziselwa ikakhulukazi ukubumba kwama-thermoplastics, futhi kusetshenziselwe kancane kancane ukubumba kwamapulasitiki aphesheya kwe-thermoset.
· Ukucindezela isikhunta
Isikhunta sokucindezela sibizwa nangokuthi isikhunta sokucindezela noma isikhunta serabha. Inqubo yokubumba yalolu hlobo lokubumba ibonakala ngokungeza izinto ezivuthiwe zepulasitiki ngqo emgodini ovulekile, bese uvala isikhunta. Ngemuva kokuthi ipulasitiki isesimweni esibunjiweyo ngaphansi kwesenzo sokushisa nengcindezi, umgodi ugcwele ingcindezi ethile. Ngalesi sikhathi, ukwakheka kwamangqamuzana kwepulasitiki kuvuselela ukusabela okuxhumeka kwamakhemikhali, kancane kancane kunzima futhi kubumba. Izikhunta zokucindezela zisetshenziselwa kakhulu amapulasitiki we-thermosetteet, futhi izingxenye zazo zepulasitiki ezibunjiwe zisetshenziselwa kakhulu ukushintshana kukagesi kanye nezidingo zansuku zonke.
Imodi yokudlulisa
Isikhunta sokudlulisa sibizwa nangokuthi isikhunta somjovo noma isikhunta sokukhishwa. Inqubo yokubumba yalolu hlobo lokubumba ibonakala ngokungeza izinto ezivuthiwe zepulasitiki egumbini lokudla okwenziwe okwesikhashana, bese lifaka ingcindezi yezinto zokwakha zepulasitiki egumbini lokudla. Ipulasitiki incibilika ngaphansi kokushisa okuphezulu kanye nengcindezi ephezulu futhi ingena emgodini ohlelweni lokuthulula isikhunta, bese kuthi ukusabela okuxhumeka kwamakhemikhali kwenzeke futhi kancane kancane kuqinisa amafomu namafomu. Inqubo yokubuyisa yokudlulisa isetshenziselwa kakhulu amapulasitiki we-thermoset, angakha izingxenye zepulasitiki ezinobukhulu obuyinkimbinkimbi.
· Ukukhishwa kufa
Ukukhishwa okuvela kudayiwe kubizwa ngekhanda lokukhishwa. Lokhu kubumba kungavele kukhiqize amapulasitiki anesikhathi esifanayo nesigaba sesigaba, njengamapayipi epulasitiki, izinduku, amashidi, njll. Ipulasitiki embusweni oncibilikisiwe idlula ekhanda lomshini ukwakha izingxenye zepulasitiki eziqhubekayo, kanye nokusebenza kahle kokukhiqiza kuphezulu kakhulu.
Ngaphezu kwezinhlobo zezikhunta zepulasitiki ezibhalwe ngenhla, kukhona ne-vacuum eyakha isikhunta, isikhunta somoya esicindezelwe, ukuqhakaza isikhunta sombuso ophansi, kanye nokukhulisa kwepulasitiki okuphansi.
Isikhathi sePosi: FEB-08-2023