Ukuze ugweme ukupholisa i-warping ngemva komshini, ngokuvamile, i-tungsten carbide idinga ukuphathwa ngokushisa, ngemva kokushisa, amandla ethuluzi azoncishiswa ngemva kokushisa, futhi ipulasitiki kanye nokuqina kwe-carbide enosimende kuzokhula. Ngakho-ke, nge-carbide enosimende, ukwelashwa kokushisa kuyinqubo ebaluleke kakhulu. Namuhla, umhleli we-Chuangrui uzokhuluma nawe ngolwazi olufanele lokwelashwa kokushisa kwe-vacuum.
Ekucubunguleni nasekukhiqizeni ukwelashwa kokushisa kwe-vacuum, kuvame ukuba nezinkinga "zombala" ebusweni bemikhiqizo ecutshungulwayo. Ukuzuza umphumela wokucubungula umkhiqizo obukeka ugqamile, onganemibala kuwumgomo ojwayelekile olandelwa i-R&D kanye nabasebenzisi bamaziko e-vacuum. Ngakho siyini isizathu sokukhanya? Yiziphi izici ezihilelekile? Ngingenza kanjani umkhiqizo wami ucwebezele? Lena indaba ekhathaza kakhulu ochwepheshe abaphambili ekukhiqizeni.
Umbala ubangelwa i-oxidation, futhi imibala ehlukene ihlobene nezinga lokushisa elikhiqizwayo kanye nobukhulu befilimu ye-oxide. Ukucisha uwoyela ku-1200°C kuzophinde kubangele ukungcwatshwa kwe-carburizing nokuncibilika kongqimba olungaphezulu, futhi i-vacuum ephezulu kakhulu izobangela ukuguquguquka kwe-elementi nokubopha. Lokhu kungalimaza ukukhanya kwendawo.
Ukuze uthole indawo ekhanyayo engcono, izinyathelo ezilandelayo kufanele zinakwe futhi zicatshangelwe ekusebenzeni kokukhiqiza:
1. Okokuqala, izinkomba zobuchwepheshe zesithando somlilo kufanele zihlangabezane nezindinganiso zikazwelonke.
2. Ukwelashwa kwenqubo kufanele kube okunengqondo futhi kulungile.
3. Isithando somlilo akufanele singcoliswe.
4. Uma kunesidingo, geza isithando somlilo nge-high-purity gas inert ngaphambi kokungena nokuphuma esithandweni.
5. Kufanele idlule kuhhavini onengqondo kusengaphambili.
6.Ukukhetha okunengqondo kwegesi ye-inert (noma ingxenye ethile yegesi yokunciphisa enamandla) ngesikhathi sokupholisa.
Kulula ukuthola indawo ecwebezelayo esithandweni se-vacuum ngoba akulula futhi kuyabiza ukuthola umoya ovikelayo onephuzu lamazolo elingu -74°C. Nokho, kulula ukuthola umoya we-vacuum onephuzu lamazolo elilingana no--74°C kanye nokungcola okufanayo okuqukethwe. Ekucubunguleni nasekukhiqizeni ukwelashwa kokushisa kwe-vacuum, insimbi engagqwali, ingxubevange ye-titanium, ne-alloy yokushisa okuphezulu kunzima kakhulu. Ukuze uvimbele ukuguquguquka kwezinto, ingcindezi (i-vacuum) yensimbi yamathuluzi kufanele ilawulwe ku-70-130Pa.
Isikhathi sokuthumela: Nov-05-2024