Umshini wokubumba umjovo usetshenziselwa ukubumba umjovo ngesikhunta sensimbi, lapho isikhunta sithe sinembobo ehlanganisa isikhunta esingaphansi nesikhunta esingaphezulu, lapho umzila wakheka endaweni enqunywe kusengaphambili emgodini wesikhunta esingezansi eduze nendawo. indawo yokujova inhlaka encibilikisiwe (P) emgodini.Izimbobo zamashaneli zimbozwe ngokuphelele, zakha umgudu wokupholisa ophakathi nendawo ukuze indawo yokupholisa (isb. umoya opholile) ifakwe endaweni yokungena, igeleze emiseleni futhi ikhishwe lapho kuphuma khona.Isikhunta esingaphansi nangaphezulu senziwe nge-aluminium noma i-aluminium alloy.Izindawo ezikhethiwe ze-cavity, ezithintana ngqo ne-resin encibilikisiwe, zifakwe isihlabathi 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 kube yi-powder metallurgy.
Isikhunta sensimbi siboniswa ngezansi:
Inqubo imi kanje: Ekuqaleni, impushana eqinile kanye ne-organic binder kuxutshwa ngokulinganayo, bese kujovelwa emgodini wokubumba ngomshini wokubumba umjovo ngaphansi kwesimo esishisayo se-plasticizing (~ 150 ℃), bese kuthi isibopho esingenalutho sikhishwe amakhemikhali noma indlela yokubola okushisayo, futhi ekugcineni umkhiqizo wokugcina utholakala ngokucwilisa kanye nokuminyana.Inqubo: isibopho → ukuxuba → ukwakhiwa komjovo → ukwehlisa amafutha → ukucwilisa → ngemva kokwelashwa.
Isikhunta somjovo siyithuluzi lokwenziwa kwemikhiqizo yepulasitiki futhi iyisiqinisekiso sesakhiwo sayo esiphelele kanye nobukhulu obunembile.Ukubumba umjovo kuyindlela yokucubungula esetshenziswa ekukhiqizeni ngobuningi bezingxenye ezithile eziyinkimbinkimbi.Kubhekiselwa ngqo ekujovweni kwezinto ezincibilikisiwe ngokushisa (ngokucindezela okukhulu endaweni yokubumba, ngemva kokupholisa nokuphulukiswa, ukuze kutholwe umkhiqizo owenziwe. Umshini womjovo we-metal powder wokusetshenziswa kwemishini yokubumba ubuchwepheshe bokubumba impuphu yensimbi. I-process flow binder iyamiswa - ku-hopper - ukubumba umjovo - umgijimi obandayo (umgijimi oshisayo) - ukwelashwa kwe-raw edge.
Umnikeli: Alisa