Inkqubo yonyango lobushushu – ukulungelelanisa

I-normalizing, eyaziwa ngokuba yi-normalizing, yinkqubo yokunyanga ukushisa kwetsimbi apho i-workpiece ishushu kwi-30 ~ 50 ° C ngaphezu kwe-Ac3 okanye i-Accm, kwaye emva kokubamba ixesha elithile, ikhutshwe kwisithando somlilo kwaye ipholile ngamanzi. , ukutshiza okanye ukuvuthela. Umahluko phakathi kwe-normalizing kunye ne-annealing kukuba isantya sokupholisa se-normalizing sikhawuleza kancinci kunoko-annealing, ngoko ke ulwakhiwo oluqhelekileyo lungcono kunolwakhiwo lwe-annealing, kwaye iimpawu zayo zomatshini nazo ziphuculwe. Ukongezelela, ukupholisa kwangaphandle kwesithando somlilo esiqhelekileyo akuhlali kwizixhobo, kwaye imveliso iphezulu. Ke ngoko, i-normalization isetyenziswa kangangoko kunokwenzeka ukutshintsha i-annealing kwimveliso.

Ezona ndawo ziphambili zokusetyenziswa kwe-normalizing zezi: ① Kwintsimbi yekhabhoni ephantsi, ukuqina emva kokuqheleka kuphezulu kancinane kunobokubamba, kwaye ukuqina kukwangcono, okunokusetyenziswa njengonyango lwangaphambili lokusikwa. ② Kwintsimbi yekhabhoni ephakathi, inokusetyenziswa njengonyango lokugqibela lobushushu endaweni yokucima kunye nonyango olushushu, okanye njengonyango lokulungiselela ngaphambi kokucima umphezulu ngokufudumeza kwe-induction. ③Isetyenziselwa isixhobo sentsimbi, intsimbi, intsimbi, njl.njl., inokunciphisa okanye inqanda ukubunjwa kwe-network carbide, ukuze kufunyanwe isakhiwo esilungileyo esifunekayo kwi-spheroidizing annealing. ④ Ukuphoswa kwentsimbi, kunokuphucula i-as-cast structure kunye nokuphucula ukusebenza komatshini. ⑤ Ukwenzela i-forgings enkulu, inokusetyenziswa njengonyango lokugqibela lokushisa ukuphepha ukuthambekela okukhulu kokuqhekeka ngexesha lokucima. ⑥Isetyenziselwa ukwenza i-iron ekuphuculeni ubulukhuni, ukomelela kunye nokunganyangeki, njengokwenza iindawo ezibalulekileyo ezinje ngee-crankshafts kunye neentonga zokuqhagamshela iimoto, iitrektara kunye neenjini zedizili. ⑦ I-normalizing phambi kokuba i-spheroidizing annealing ye-hypereutectoid steel inokuphelisa i-cementite e-reticulated ukuqinisekisa ukuba yonke i-cementite i-spheroidized ngexesha le-spheroidizing annealing.