Emva kokucinywa kunye nokunyangwa kwemibhobho engenamthungo, iinxalenye eziveliswayo zineepropati ezilungileyo ezibanzi zoomatshini kwaye zisetyenziswa ngokubanzi kwiindawo ezahlukeneyo ezibalulekileyo zesakhiwo, ngokukodwa ezo zidibanisa iintonga, iibholiti, iigiya kunye neeshafti ezisebenza phantsi kwemithwalo etshintshanayo.Kodwa ubunzima bomphezulu buphantsi kwaye abukwazi ukunxiba.I-Tempering + yokucima umphezulu ingasetyenziselwa ukuphucula ubulukhuni bomphezulu wamalungu.

Ukubunjwa kwayo kweekhemikhali kuqulethe i-carbon (C) umxholo we-0.42 ~ 0.50%, umxholo we-Si we-0.17 ~ 0.37%, umxholo we-Mn we-0.50 ~ 0.80%, kunye ne-Cr content <= 0.25%.
Ubushushu obucetyiswayo bonyango lobushushu: ukulinganisa i-850 ° C, ukucima i-840 ° C, ukufudumeza i-600 ° C.

Imibhobho yentsimbi eqhelekileyo engenamthungo ngokuqhelekileyo yenziwe ngentsimbi ephezulu ye-carbon structural, engenzima kakhulu kwaye kulula ukuyisika.Ihlala isetyenziselwa ukubumba ukwenza iitemplates, iingcebiso, izithuba zesikhokelo, njl., Kodwa unyango lokushisa luyafuneka.

1. Emva kokucima nangaphambi kokuvutha, ubunzima bensimbi bukhulu kune-HRC55, efanelekile.
Obona bunzima buphezulu bokusetyenziswa okusebenzayo yi-HRC55 (i-high frequency quenching HRC58).

2. Musa ukusebenzisa inkqubo yokushisa ukushisa kwe-carburizing kunye nokucima isinyithi.
Emva kokucima kunye nokufudumala, iinxalenye zineepropati ezilungileyo ezibanzi zoomatshini kwaye zisetyenziswa ngokubanzi kwiindawo ezahlukeneyo ezibalulekileyo zesakhiwo, ngakumbi ezo zidibanisa, iibholiti, iigiya kunye neeshafts ezisebenza phantsi kwemithwalo etshintshanayo.Kodwa ubunzima bomphezulu buphantsi kwaye abukwazi ukunxiba.I-Tempering + yokucima umphezulu ingasetyenziselwa ukuphucula ubulukhuni bomphezulu wamalungu.

Unyango lwe-Carburizing lusetyenziswa ngokubanzi kwiindawo ezinomthwalo onzima kunye nomphezulu ongaguqukiyo kunye nesiseko esinganyangekiyo kwimpembelelo, kwaye ukuxhathisa ukunxitywa kuphezulu kunokucima kunye nokutshisa + ukucima umphezulu.Umxholo wekhabhoni phezu komhlaba ngu-0.8-1.2%, kwaye ingundoqo ngokuqhelekileyo i-0.1-0.25% (0.35% isetyenziswe kwiimeko ezikhethekileyo).Emva konyango lobushushu, umphezulu unokufumana ubunzima obuphezulu kakhulu (HRC58-62), kwaye ingundoqo inobunzima obuphantsi kunye nokuchasana kwempembelelo.