Mushure mekudzima uye kudziya kurapwa kwepombi dzisina musono, zvikamu zvinogadzirwa zvine yakanaka yakazara michini michaniko uye inoshandiswa zvakanyanya munzvimbo dzakasiyana dzakakosha dzemagadzirirwo, kunyanya ayo ekubatanidza tsvimbo, mabhaudhi, magiya uye shafts anoshanda pasi pemitoro inochinjana. Asi kuoma kwepamusoro kwakadzikira uye hakubatike kupfeka. Kupisa + kudzima kwepamusoro kunogona kushandiswa kuvandudza kuoma kwepamusoro kwezvikamu.

Kemikari yayo ine kabhoni (C) yemukati ye0.42 ~ 0.50%, Si yemukati ye0.17~0.37%, Mn yemukati ye0.50 ~ 0.80%, uye Cr yemukati <= 0.25%.
Inokurudzirwa kupisa kupisa tembiricha: normalizing 850°C, quenching 840°C, tempering 600°C.

Mapombi esimbi asina musono anowanzo gadzirwa nemhando yepamusoro kabhoni structural simbi, iyo isina kuoma zvakanyanya uye nyore kucheka. Inowanzoshandiswa mu molds kugadzira ma templates, mazano, maitirwo emutungamiri, nezvimwewo, asi kurapwa kwekupisa kunodiwa.

1. Mushure mekudzima uye kusati kwapisa, kuoma kwesimbi yakakura kudarika HRC55, iyo inokodzera.
Hukukutu hwepamusoro hwekushandisa iHRC55 (high frequency quenching HRC58).

2. Usashandise kupisa kwekupisa kwecarburizing uye kudzima kwesimbi.
Mushure mekudzima uye kudziya, zvikamu zvine yakanaka yakazara mechanicha zvivakwa uye zvinoshandiswa zvakanyanya munzvimbo dzakasiyana siyana dzakakosha, kunyanya izvo zvinosungirira tsvimbo, mabhaudhi, magiya uye shafts anoshanda pasi pemitoro inochinjana. Asi kuoma kwepamusoro kwakadzikira uye hakubatike kupfeka. Kupisa + kudzima kwepamusoro kunogona kushandiswa kuvandudza kuoma kwepamusoro kwezvikamu.

Carburizing kurapwa inowanzo shandiswa kune zvinorema-basa zvikamu zvine kupfeka-inodzivirira pamusoro uye kukanganisa-inodzivirira musimboti, uye kupfeka kwayo kuramba kwakakwira kupfuura kudzima uye kudziya + pamusoro pekudzima. Iyo kabhoni yemukati iri pamusoro ndeye 0.8-1.2%, uye iyo yakakosha inowanzo 0.1-0.25% (0.35% inoshandiswa mune dzakakosha kesi). Mushure mekurapwa kwekupisa, iyo yepamusoro inogona kuwana yakanyanya kuoma (HRC58–62), uye iyo yepakati ine yakaderera kuomarara uye kukanganisa kupikisa.