Ingacocwa njani imingundo yegraphite?
Ngokubanzi, xa inkqubo yokubumba igqityiwe, ukungcola okanye iintsalela (ngokuqinisekileyoukwakheka kweekhemikhalikwayeiimpawu zomzimba) zihlala zishiywe kwiukungunda kwegraphite. Kwiintlobo ezahlukeneyo zeentsalela, iimfuno zokugqibela zokucoca zihlukile. Iirensi ezifana ne-polyvinyl chloride ziya kuvelisa igesi ye-hydrogen chloride, eya kutshabalalisa iintlobo ezininzi zentsimbi ye-graphite mold. Ezinye iintsalela zohlulwe kwi-flame retardants kunye ne-antioxidants, ezinokubangela ukubola kwintsimbi. Kukwakho neminye imibala enemibala ekwazi ukurusa intsimbi, kwaye umhlwa kunzima ukuwususa. Kwanamanzi atywiniweyo ngokubanzi, ukuba ashiywe kumphezulu we-graphite mold engaphendulwanga ixesha elide, kuya kubangela umonakalo kwi-graphite mold.
Ngoko ke, i-graphite mold kufuneka icocwe njengoko kuyimfuneko ngokomjikelezo wemveliso omiselweyo. Ngalo lonke ixesha i-graphite mold ikhutshwe kwi-press, i-pores ye-graphite mold kufuneka ivuleke ukuze isuse yonke inkunkuma ene-oxidized kunye ne-rust kwiindawo ezingabalulekanga ze-graphite mold kunye ne-template ukuyithintela ngokukhawuleza ukugqwesa umphezulu kunye nemiphetho yentsimbi. Kwiimeko ezininzi, kwanasemva kokucocwa, ezinye iigraphite ezingagqunywanga okanye ezirusayo ziya kuphinda zibonakalise iimpawu zokugqwala kwakhona. Ngoko ke, nokuba kuthatha ixesha elide ukuhlamba isikhunta esingakhuselekanga se-graphite, ukubonakala kwe-rust akukwazi ukuphetshwa ngokupheleleyo.
Ngokuqhelekileyo, xa usebenzisa iiplastiki ezinzima, iiglasi zeglasi, iigobolondo ze-walnut kunye neepelisi ze-aluminium njenge-abrasives yokugaya i-high-pressure kunye nokucoca umphezulu we-graphite molds, ukuba ezi zixhobo zisetyenziswa rhoqo okanye ngokungafanelekanga, le ndlela yokugaya iya kubangela iingxaki. I-Porosity yenzeka kumphezulu we-graphite mold kunye neentsalela kulula ukubambelela kuyo, okubangela iintsalela ezininzi kunye nokunxiba, okunokuthi kukhokelela ekuqhekekeni kwangaphambi kwexesha okanye ukudanyaza kwe-graphite mold, engathandekiyo ngakumbi ukucocwa kwe-graphite mold.
Ngoku, iigraphite ezininzi zokubumba zinemibhobho “ezicocayo” ephumayo, eneglosi ephezulu. Emva kokucoca kunye nokupolisha umngxuma wokukhupha umoya ukuze kuphunyezwe umgangatho wokupolisha we-SPI#A3, mhlawumbi emva kokusila okanye ukugalela, intsalela ikhutshelwa kwindawo yenkunkuma yombhobho wokukhupha umoya ukuze kuthintelwe intsalela ukuba ibambelele kumphezulu weqonga elirhabaxa. Nangona kunjalo, ukuba umqhubi ukhetha i-coarse-grained pads yokuhlamba, ilaphu le-emery, i-sandpaper, amatye okusila, okanye iibrashi ezine-nylon bristles, ubhedu okanye intsimbi yokugaya ngesandla i-graphite mold, iya kubangela "ukucoca" ngokugqithiseleyo kwe-graphite mold. .
Ngoko ke, emva kokukhangela izixhobo zokucoca ezifanelekileyo kwi-graphite molds kunye nobuchule bokucubungula, kunye nokubhekisela kwiindlela zokucoca kunye nemijikelezo yokucoca erekhodiweyo kwiifayile ze-archive, ngaphezu kwe-50% yexesha lokulungiswa kunokugcinwa, kwaye ukunxiba kwe-graphite mold kunokunciphisa ngempumelelo.
Ixesha lokuposa: Aug-19-2021