Kukweyiphi imimandla inkqubo ye-annealing ye izixhobo zokufudumeza rhoqo isetyenziswa ikakhulu?

Okokuqala, ukuze kuncitshiswe ubulukhuni bentsimbi yokusebenza kunye nokuthwala intsimbi emva kokubumba, i-workpiece ifudunyezwe ukuya kuma-20-40 degrees Celsius, kwaye emva koko ipholile ngokukhawuleza, ukuze i-lamellar cementite kwi-pearlite ibe yingqukuva ngexesha lokupholisa. , ukunciphisa ubulukhuni bentsimbi, lo mcimbi ungowe-spheroidizing annealing.

Okwesibini, ukwenzela ukwenza amacandelo kwi-alloy casting ngokulinganayo, sinokufudumeza i-workpiece kwiqondo lokushisa elithile, kodwa kwisiseko sokuba ayinakunyibilika, yigcine ishushu ixesha elide ukuvumela amacandelo angaphakathi. workpiece ukuba isasazwe ngokulinganayo uze uphole phantsi. Ukwenza ukuba ifezekise iipropati ezithile zeekhemikhali ukuphucula ukusebenza kwayo, le ndlela yokufudumeza i-diffusion annealing.

Okwesithathu, ukuphoswa kwentsimbi kunye namalungu adityanisiweyo ngokubanzi anoxinzelelo lwangaphakathi. Singasebenzisa izixhobo zokufudumeza ezikwi-high-frequency induction ukuzifudumeza, kwaye iqondo lobushushu kufuneka libe ngaphantsi kwe-100-200 °C, emva koko liyeke liphole ngokwemvelo. Ukunciphisa uxinzelelo.

Okwesine, ukwenza intsimbi equlathe i-cementite ibe yintsimbi yeplastiki, sinokusebenzisa izixhobo zokufudumeza ukufudumeza ngokuthe ngcembe ukuya kubushushu obumalunga ne-1000 degrees, kwaye uyiyeke iphole kancinci, ukuze i-cementite yangaphakathi ibole. kwiflocculent graphite, kwaye le ndlela yokufudumeza yigraphite annealing.

Okwesihlanu, umzekelo, kwinkqubo yokubanda okubandayo okanye umzobo obandayo, into enzima ifumaneka kwiingcingo zetsimbi kunye namaphepha. Ukuze kupheliswe le nto yokuqina, kufuneka silawule ngokukhawuleza ubushushu besixhobo sokusebenza xa sifudunyezwa kwi-50-150 degrees Celsius. Ukuqinisa i-workpiece ukuthambisa isinyithi, le ndlela yokufudumeza i-recrystallization annealing.