Inkqubo yobushushu bombhobho wentsimbi ikakhulu ibandakanya ezi ndidi zilandelayo ze-5:

1, ukucima + ubushushu obuphezulu bobushushu (ekwabizwa ngokuba kukucima kunye nokuthoba)

Umbhobho wentsimbi ufudunyezwe kubushushu bokucima, ukuze ulwakhiwo lwangaphakathi lombhobho wentsimbi luguqulwe lube yi-austenite, luze luphole ngokukhawuleza kunesantya esibalulekileyo sokucima, ukuze ulwakhiwo lwangaphakathi lombhobho wentsimbi luguqulwe lube martensite, kwaye ke enomsindo kunye nobushushu obuphezulu, ekugqibeleni, isakhiwo sombhobho wentsimbi siguqulwa sibe yi-uniform tempered sopranite.Le nkqubo ayikwazi nje ukuphucula amandla kunye nobunzima bombhobho wentsimbi, kodwa idibanisa ngokwemvelo amandla, iplastiki kunye ukuqina kombhobho wentsimbi.

2, ukuqheleka (ekwabizwa ngokuba yinto eqhelekileyo)

Emva kokufudumeza umbhobho wensimbi kwiqondo lokushisa eliqhelekileyo, isakhiwo sangaphakathi sombhobho wensimbi siguqulwa ngokupheleleyo sibe yisakhiwo se-austenite, kwaye ke inkqubo yonyango yokushisa ipholile ngomoya njenge-medium.After normalizing, izakhiwo zetsimbi ezahlukeneyo zinokufumaneka, ezifana ne-pearlite. , i-bainite, i-martensite, okanye umxube wabo.Le nkqubo ayinakucokisa kuphela ingqolowa, ukubunjwa okufanayo, ukuphelisa uxinzelelo, kodwa nokuphucula ubulukhuni bepayipi yensimbi kunye nokusebenza kwayo kokusika.

Ukulinganisa + ukuthoba

Ityhubhu yentsimbi ifudunyezwe kwiqondo lobushushu eliqhelekileyo, ukuze ulwakhiwo lwangaphakathi lwetyhubhu yentsimbi lutshintshwe ngokupheleleyo kwisakhiwo se-austenite, kwaye emva koko lupholile emoyeni, emva koko lunomsindo.Isakhiwo sombhobho wentsimbi sinomsindo ferrite + pearlite, okanye i-ferrite. + I-bainite, okanye i-bainite epholileyo, okanye i-martensite epholileyo, okanye i-sortensite epholileyo. Inkqubo inokuzinzisa isakhiwo sangaphakathi sombhobho wentsimbi kunye nokuphucula iplastiki kunye ubunzima.

4, ukuhlamba

Yinkqubo yonyango lobushushu apho ityhubhu yentsimbi ifudunyezwa kwiqondo lobushushu le-annealing kwaye igcinwe ixesha elithile, kwaye emva koko ipholile phantsi kwiqondo lokushisa elithile kunye ne-furnace.Nciphisa ubulukhuni bentsimbi yombhobho, ukuphucula iplastiki yayo, ukuququzelela okulandelayo ukusika okanye ukucutshungulwa kokuguqulwa okubandayo;Coca ingqolowa, susa iziphene ze-microstructure, ukwakheka okufanayo kwangaphakathi kunye nokwakheka, ukuphucula ukusebenza kombhobho wentsimbi okanye ukulungiselela inkqubo elandelayo; Ukuphelisa uxinzelelo lwangaphakathi lombhobho wentsimbi ukunqanda. ukuguqulwa okanye ukuqhekeka.

5. Unyango lwesisombululo

Ityhubhu yentsimbi ifudunyezwe kwiqondo lobushushu isisombululo, ukuze i-carbides kunye ne-alloying idibanise ngokupheleleyo kwaye ifakwe ngokufanayo kwi-austenite, kwaye ke ityhubhu yentsimbi ipholiswe ngokukhawuleza, ukuze ikhabhoni kunye nezinto ezixutywayo zingabi naxesha lokunyuka, kunye nenkqubo yonyango lobushushu. kwesakhiwo esisodwa se-austenite sifunyenwe.Umsebenzi wenkqubo: isakhiwo sangaphakathi esifanayo sombhobho wentsimbi, ukubunjwa okufanayo kombhobho wensimbi; Ukuphelisa ukuqina kwinkqubo yokucubungula ukwenza lula ukubanda okulandelayo. ukusetyenzwa koguqulo;Buyisela ukuxhathisa umhlwa kwentsimbi engatyiwayo.