Umshini wokubumba umjovo usetshenziselwa ukubumba umjovo ngesikhunta sensimbi, lapho isikhunta esithe sinembobo ehlanganisa imbobo esikhunjeni esingaphansi kanye nesikhunta esingaphezulu, lapho umzila wakheka khona endaweni enqunywe kusengaphambili emgodini wesikhunta esingezansi eduze nendawo yokungena yokujova inhlaka encibilikisiwe (P) emgodini. Izimbobo zamashaneli zivalwe ngokuphelele, zakha umgudu wokupholisa ophakathi nendawo ukuze indawo yokupholisa (isb. umoya opholile) ifakwe endaweni yokungena, igeleze emiseleni futhi ikhishwe endaweni yokuphuma. Isikhunta esingaphansi nangaphezulu senziwe nge-aluminium noma i-aluminium alloy. Izindawo ezikhethiwe ze-cavity, ezithintana ngqo ne-resin encibilikisiwe, zifakwe esihlabathini noma ziphathwe ngamakhemikhali ukuze zenze amaqhubu amancane.
I-Metal Powder Injection Molding (MIM) iwubuchwepheshe obusha be-powder metallurgy obuseduze ne-net-shape eyethula ukubumba komjovo wepulasitiki wesimanje ekubeni yi-powder metallurgy.
Isikhunta sensimbi siboniswa ngezansi:
Inqubo imi kanje: Ekuqaleni, impushana eqinile kanye ne-organic binder kuxutshwa ngokulinganayo, bese kufakwa emgodini wesikhunta ngomshini wokubumba umjovo ngaphansi kwesimo esishisayo se-plasticizing (~ 150 ℃), bese isibophelelo esisendaweni engenalutho sisuswa ngendlela yamakhemikhali noma yokubola okushisayo, futhi ekugcineni umkhiqizo wokugcina utholakala ngokucwiliswa nokushumeka. Inqubo: i-binder → ukuxuba → ukwenza umjovo → ukususa amafutha → ukucwilisa → ngemva kokwelashwa.
Isikhunta somjovo siyithuluzi lokwenziwa kwemikhiqizo yepulasitiki futhi iyisiqinisekiso sesakhiwo sayo esiphelele kanye nobukhulu obunembile. Ukubumba komjovo kuyindlela yokucubungula esetshenziswa ekukhiqizeni ngobuningi bezingxenye ezithile eziyinkimbinkimbi. Ibhekisela ngokukhethekile ekujovweni kwezinto ezincibilikisiwe ngokushisa (ngokucindezela okukhulu emgodini wesikhunta, ngemva kokupholisa nokuphulukiswa, ukuze kutholwe umkhiqizo owenziwe. Ukusetshenziswa komshini wokujova nge-metal powder wemishini yokubumba ubuchwepheshe bokubumba impushana yensimbi. Kukhona nezinto zokusebenza ezihlukile. I-Process flow binder yokomisa izinto ezingavuthiwe - ku-hopper - ukubumba umjovo - umgijimi obandayo (umgijimi oshisayo) - ukwelashwa kwe-raw edge.
Umnikeli: Alisa
