Phakathi kwezinqubo ezihlukahlukene zokuphonsa, insimbi engagqwali iphonswa ngokuyinhloko ngokufaka utshalomali nomainqubo yokukhipha i-wax elahlekile, ngoba inokunemba okuphezulu kakhulu futhi yingakho ukufakwa kwe-investimenti kuphinde kuqanjwe ngokuthi i-precision casting.
Insimbi engagqwali isifinyezo sensimbi engagqwali ne-acid-resistant. Ibizwa ngensimbi engagqwali ekwazi ukumelana nemithombo yemali ebolayo ebuthakathaka njengomoya, isitimu, namanzi. Insimbi yokugqwala ibizwa ngokuthi insimbi engamelana ne-asidi.
Ngenxa yomehluko ekwakhekeni kwamakhemikhali phakathi kwensimbi engagqwali evamile nensimbi engamelana ne-asidi, ukumelana kwazo nokugqwala kwehlukile. Insimbi engagqwali evamile ngokuvamile ayimelani nokugqwala kwemithombo yamakhemikhali, kuyilapho insimbi emelana ne-asidi ngokuvamile ayigqwali. Igama elithi "insimbi engagqwali" alibhekiseli nje kuphela ohlotsheni olulodwa lwensimbi engagqwali, kodwa futhi libhekisela ezinsimbi ezingenasici zezimboni ezingaphezu kwekhulu. Insimbi engagqwali ngayinye ethuthukisiwe inokusebenza okuhle emkhakheni wayo wesicelo othize.
Insimbi engagqwali ivame ukuhlukaniswa ngensimbi engagqwali ye-martensitic, insimbi engagqwali ye-ferritic, insimbi engagqwali ye-austenitic,i-austenitic-ferritic (duplex) insimbi engagqwalikanye nemvula eyenza lukhuni insimbi engagqwali ngokuya ngesimo se-microstructure. Ngaphezu kwalokho, ngokusho kwezakhi zamakhemikhali, ingahlukaniswa insimbi engagqwali ye-chromium, insimbi engagqwali ye-chromium nickel ne-chromium manganese nitrogen insimbi engagqwali, njll.
Emkhiqizweni wokulingisa, ukulingwa okuningi kwensimbi engagqwali kuqedwa ngokufaka utshalomali. Ingaphezulu lokulingisa kwensimbi engagqwali okukhiqizwa ukufakwa kwe-investimenti lishelela futhi ukunemba kobukhulu kulula ukulawula. Yiqiniso, izindleko zeutshalomali casting izingxenye zensimbi engagqwaliiphakeme uma iqhathaniswa nezinye izinqubo nezinto zokwakha.
Ukusakaza kwe-investimenti, okubuye kubizwe ngokunemba kwe-precision casting noma i-wax casting elahlekile, kusetshenziswa kakhulu njengoba kunikeza ukulingisa okulinganayo okunemininingwane emihle kakhulu okufanele kukhiqizwa ngendlela engabizi kakhulu. Inqubo ihilela ukukhiqiza ukubunjwa kwensimbi kusetshenziswa isikhunta esiphikisayo esenziwe ngephethini ye-wax replica. Izinyathelo ezihilelekile kule nqubo noma ukukhishwa kwe-wax okulahlekile yizi:
• Dala iphethini ye-wax noma i-replica
• Fafaza iphethini ye-wax
• Tshala iphethini ye-wax
• Susa iphethini ye-wax ngokuyishisa (ngaphakathi kwesithando somlilo noma emanzini ashisayo) ukuze wenze isikhunta.
• Phoqa insimbi encibilikisiwe ithele esikhunjini
• Ukupholisa kanye Nokuqinisa
• Susa i-sprue ekubunjweni
• Qeda futhi upholishe ukufakwa kwe-investimenti okuqediwe
Isikhathi sokuthumela: Jan-06-2021