Phakathi kwezinqubo ezahlukahlukene zokusakaza, insimbi engagqwali ikakhulu isakazwa ngokutshalwa kwezimali noma inqubo elahlekile ye-wax, ngoba inokunemba okuphezulu kakhulu futhi yingakho ukusakazwa kokutshalwa kwezimali kubizwa nangokuthi ukusakazwa ngokunemba.
Insimbi engagqwali isifinyezo sensimbi engagqwali ne-asidi. Ibizwa ngensimbi engagqwali emelana nemithombo yezindaba ebuthakathaka efana nomoya, umusi namanzi. Insimbi yokugqwala ibizwa ngensimbi emelana ne-asidi.
Ngenxa yomehluko wokwakheka kwamakhemikhali phakathi kwensimbi engagqwali ejwayelekile nensimbi emelana ne-asidi, ukumelana nokugqwala kwabo kwehlukile. Insimbi engagqwali ejwayelekile ngokuvamile ayimelani nokugqwala kwemidiya yamakhemikhali, ngenkathi insimbi emelana ne-asidi ngokuvamile ingonakali. Igama elithi "insimbi engagqwali" alibhekiseli kuphela kuhlobo olulodwa lwensimbi engagqwali, kodwa futhi libhekisa ezinsimbini zezimboni ezingaphezulu kwekhulu. Insimbi ngayinye engenasici ithuthukisiwe inokusebenza okuhle emkhakheni wayo wokufaka othize.
Insimbi engagqwali ivame ukuhlukaniswa ngensimbi engenasisekelo i-martensitic, insimbi engagqwali ye-ferritic, insimbi engagqwali ye-austenitic, insimbi engagqwali ye-austenitic-ferritic (duplex) kanye nemvula eqinisa insimbi engagqwali ngokusho kwesimo se-microstructure. Ngaphezu kwalokho, ngokusho kokuqanjwa kwamakhemikhali, ingahlukaniswa ngensimbi engagqwali ye-chromium, i-chromium nickel insimbi engagqwali kanye ne-chromium manganese nitrogen insimbi engagqwali, njll.
Ekukhiqizeni ukukhiqizwa, iningi lokuphonsa insimbi engagqwali ligcwaliswa ngokufaka imali. Ingaphezulu lensimbi engagqwali castings ekhiqizwa ukutshalwa kwezimali ekubunjweni bushelelezi futhi ukunemba ntathu kulula ukulawula. Vele, izindleko zokutshalwa kwemali zokukhipha izingxenye zensimbi engagqwali ziphakeme kakhulu uma ziqhathaniswa nezinye izinqubo nezinto zokwakha.
Investment thusi, obizwa nangokuthi ukucacisa thusi noma elahlekile wax thusi, lisetshenziswa kabanzi njengoba linikeza thusi asymmetrical nemininingwane emihle kakhulu ukuba yenziwe kuqhathaniswa engabizi. Le nqubo ifaka phakathi ukukhiqiza ukusakaza kwensimbi kusetshenziswa isikhunta sokuphikisa esenziwe ngephethini lesifanekiso se-wax. Izinyathelo ezibandakanyeka enqubeni noma ukulahlwa kwe-wax yilezi:
• Dala iphethini ye-wax noma umfanekiso
• Sula iphethini ye-wax
• Tshala imali ngephethini ye-wax
• Susa iphethini ye-wax ngokuyishisa (ngaphakathi kwesithando somlilo noma emanzini ashisayo) ukwakha isikhunta.
• Cindezela uthele insimbi encibilikisiwe esikhunjeni
• Ukupholisa nokuqinisa
• Susa i-sprue kusuka ekusakazweni
• Qedela uphinde upholishe ukusatshalaliswa kwemali okuqediwe
Isikhathi Iposi: Jan-06-2021