Inkqubo ye-1.Wiech

Inkqubo ye-Wiech imelwe yi-patent eyenziwe ngu-Wiech ngo-1980 kwaye iye yaphuculwa amaxesha amaninzi. Inkqubo yokuncamathela eyisiseko yenkqubo yeWiech yenziwe ngeparafini wax kunye neresin ye-thermoplastic. Isibophelelo kunye nomgubo zixutywa kwisixhobo sokucheba iblade yodidi lwe-“Z” okanye “Σ”. Inkqubo yokuqala yokunciphisa i-degreasing yinkqubo yamanyathelo amabini apho i-MIM eyenza i-billet ifakwe kuqala kwi-vacuum container kwaye ifudunyezwe ukuya okanye ngaphezu kweqondo lokushisa lokuhamba kwe-binder, kwaye i-solvent yongezwa ngokucothayo kwifom ye-gaseous kwi-container apho i-billet yokubumba ikhona. I-solvent ye-gaseous ingena kwi-billet yokwenza ukunyibilikisa i-binder, kwaye xa ichithwa kwinqanaba elithile, isisombululo se-solvent se-binder siya kuphuma kwi-billet yokwenza. Ukubumba okungenanto kunye noninzi lwesibophelelo esisusiweyo sintywiliselwa kwi-solvent engamanzi ukususa i-binder eseleyo. Ekugqibeleni, i-billet yokwenza i-preheated ukuze isuse enye i-binder eseleyo kunye ne-solvent, kwaye imveliso egqityiweyo i-sintered. Inkqubo ithatha iintsuku ezi-3 ukukhupha i-solvent yegesi yodwa

Ukusebenza kokunciphisa amafutha kuphantsi kakhulu. Njengoko iqondo lokushisa lokunciphisa liphezulu kunokushisa okuhambayo kwe-binder, i-deformation inzulu. Inkqubo kamva yatshintshwa kuyo yonke i-degreasing ngokuchithwa kwe-thermal kunye nexesha lokunciphisa lancitshiswa kakhulu. Kuphuhliso lokuqala loshishino lweMIM, uninzi lweenkampani zamkela inkqubo yeWiech. Ukuza kuthi ga ngoku, ezinye iinkampani zisasebenzisa inkqubo yeWiech yokuvelisa. Nangona kunjalo, inkqubo yeWiech ineengxaki ezinje ngoxinzelelo oluphezulu lwenaliti eluhlaza engenanto, kulula ukuqhekeka kunye nokuguqulwa, kwaye kunzima ukuvelisa iinxalenye ezinobukhulu obukhulu.

2 Inkqubo ye-Ijectamax

UJohnson we-AMAX Metal Injection Molding USA waqulunqa inkqubo ye-Injectamax ngo-1988. Inzuzo ephambili yenkqubo kukuba i-binder yayo iquka iparafini, i-oyile yemifuno, kunye ne-polymer. I-oyile yemifuno i-liquid xa ijojowe kwaye ipholile, eyenza umthamo we-billet yokwenza utshintshe kancinci ngaphambi nangemva kokwenziwa kwesitofu, kwaye unciphise uxinzelelo lwangaphakathi kwi-billet yokwenza. Xa i-degreasing, i-solvent efana ne-trichloroethane isetyenziselwa ukunyibilikisa ngokukhethiweyo ioli yemifuno kunye ne-wax yeparafini kuqala, ngelixa izinto ezinganyibilikiyo zinganyibiliki. Oku kuvula umjelo wepore kwaye emva koko kususe i-binder eseleyo ngokususa i-thermal. Ixesha elipheleleyo lenkqubo yokulahla lifutshane, kuphela i-6h, enye

Indlela ekhawulezayo yokunciphisa amafutha. Ngenxa yokulula kwayo, utyalo-mali oluphantsi kunye nokusebenza kakuhle, ukunyibilika kwe-solvent kunye ne-thermal degreasing inkqubo yamanyathelo amabini okwangoku yamkelwa ngabaninzi.Iinkampani zeMIMkunye nabavelisi.

3 Indlela yeMetamold

Inkqubo ye-Metamold yinkqubo ye-MIM yokususa amafutha ephuhliswe yi-Bloemacher elingana ne-BSAF yaseJamani ekuqaleni koo-1990. Uphawu oluphambili lobuchwephesha lwale ndlela kukuba isebenzisa i-polyether resin njenge-binder kwaye ibangela ukwehla ngokukhawuleza kwi-atmosphere ye-acidic. Ukusetyenziswa kwe-resin ye-polyether ye-chain ende njenge-binder, usebenzisa i-polyether resin polarity ukudibanisa i-powder yensimbi, inokufaneleka kwiintlobo ezininzi ze-powder. I-formaldehyde ibolile ibe yi-formaldehyde phantsi kwe-catalysis ye-asidi emoyeni. Le reaction yokubola kwenzeka ngokukhawuleza ngaphezu kwe-110 ℃, eyi-gas-2 inguqu eqinileyo ngqo. I-BASF yaqala yasebenzisa i-nitric acid njenge-catalyst, eyenza ukuthotywa kwegrisi kwinqanaba eliphantsi kune-polymerization.

Ukushisa okuthambileyo kwe-aldehyde resin kuthintela ukubunjwa kwesigaba solwelo, okuluncedo ukulawula ukuguqulwa kwe-billet eluhlaza kunye nokuqinisekisa ukuchaneka komda emva kokuntywila. I-catalytic degreasing iqhutyelwa kwi-interface ye-binder kwi-atmosphere 2. Akukho rhasi kwi-billet eyenza i-billet, kwaye isantya esihamba phambili se-interface yokusabela sinokufikelela kwi-1 ~ 4mm / h. I-BASF kamva yavelisa indlela entsha yokusebenzisa i-oxalic acid njenge-catalyst, enokuthi isetyenziswe kwii-alloys ezinzima kunye neekeramics, ukwandisa ukusetyenziswa kwenkqubo ye-Metamold. Uphawu olubalulekileyo lwendlela ye-Metamold kukuba ithatha i-catalyst degreasing, kwaye akukho nqanaba lolwelo livela ngexesha lokunciphisa, elithintela ubuthathaka ukuba iimveliso ze-MIM zivame ukuguqulwa kunye nokulawula ukuchaneka kobukhulu kunzima. Yeyona mpumelelo iphambili kwishishini leMIM, kwaye ngenxa yokuba i-catalytic degreasing, ixesha lokuthomalalisa lifutshane kakhulu kwaye ixabiso liyancitshiswa. Ubungakanani obukhuluAmalungu eMIMinokuveliswa ngendlela yeMetamold. Ngenkqubo ye-CREMER eqhubekayo yokususa igrisi kunye ne-sintering, imveliso eqhubekayo inokwenzeka, okwenza i-MIM ibe yi-PM ekhuphisanayo ngokwenene kufuphi nobuchwephesha bokubumba obucocekileyo. Nangona kunjalo, le ndlela ineengxaki ezithile ezifana nezixhobo ze-asidi ze-corrosion kunye nonyango lwegesi yenkunkuma, kwaye iindleko zotyalo-mali lwezixhobo eziphambili ziphezulu kakhulu.

Iinkukhu zenkampani yase-Us-Based Thermal Precision Technology iphuhlise inkqubo entsha ebizwa ngokuba yintsimbi echanekileyoukubumba inaliti yomgubo(PPIM). Inkampani ibanga ukuba ukusebenzisa le nkqubo kuya kuqhubela phambili itekhnoloji yeMIM kwixesha elitsha lexabiso eliphantsi, ukuchaneka okuphezulu, isivuno esikhulu kunye nokulungelelaniswa kokusingqongileyo. Iimpawu eziphambili zezobugcisa zenkqubo ye-PPIM zifakwe kwiinkalo ezimbini, enye kukusetyenziswa kwe-binder-soluble binder. I-binder iqukethe i-polyethylene glycol (PEG) njengento yokuqala kunye ne-polymer edibeneyo efana ne-polyvinyl butyral (PVB) njengento yesibini. Ngoko ke ukwehlisa amafutha kunokwahlulwa kube ngamanyathelo amabini, eyokuqala isuswe yindlela yokuchithwa kwamanzi, iPEG, apho i-PVB ihlala ikwimo eqinileyo edityanisiweyo. Ngakolunye uhlangothi, inkqubo ye-PPIM ithatha umgubo wesinyithi owenziwe ngokusasazwa kobungakanani bamasuntswana abanzi, kusetyenziswa umgubo orhabaxa, umgubo ocoliweyo, ukuze ukulayishwa kwepowder kwisondlo kwandiswe, kuba umgubo wensimbi engenasici unokufikelela kwi-74% (iqhekeza levolumu), ukunciphisa kakhulu ukuncipha kobungakanani. Ngenxa yolu phuculo lubini, ukuchaneka komgangatho wemveliso kunokufikelela ku ±011% ngokusebenzisaInkqubo yePPIM, eyona iphakamileyo kuzo zonke Iinkqubo zeMIMngoku.