Nzira ye carburize uye kupisa kubata camshafts?

1. Kudzima kwakananga mushure mekuviga carburizing kune zvakanakira zvekugadzirwa kwakanyanya, mutengo wakaderera, uye oxidative decarburization. Nekudaro, nekuda kwekushisa kwakanyanya kwecarburizing, iyo austenite zviyo zvinokura, iyo martensite inokora mushure mekudzima, uye yakachengetwa austenite Kune zvakare miviri miviri, saka kupfeka kuramba uye kuoma kwakashata. Chete yakakodzera kune intrinsically yakanaka-grained simbi uye zvikamu zvine yakaderera kupfeka kuramba zvinodiwa kana yakaderera mitoro inotakura

2. Kudzima kamwe chete kunoitwa mushure mekunge carburizing yatonhodzwa zvishoma nezvishoma, yozodziiswazve kune tembiricha iri pamusoro petembiricha yakakosha yobva yadzima. Kuenzaniswa nekudzima kwakananga, kudzima kamwe chete kunogona kunatsa chimiro chesimbi kusvika pamwero wakati. Kana izvo zvinodikanwa zveiyo musimboti chimiro zvakakwirira, tembiricha yekudziya yekudzima inokwira zvishoma pane Ac3. Kune zvikamu zvisina kuremerwa zvakanyanya asi zvine yakakwirira kupfeka kuramba uye yakakwirira kuoma kuita zvinodiwa pamusoro. Iyo tembiricha yekudzima inofanirwa kunge iri 30 ℃～50 ℃ pamusoro peAc1, kuitira kuti iyo yepamusoro layer zviyo zvigadziriswe, asi iyo yepakati chimiro haizovandudzwe zvakanyanya, uye kuita kunenge kwatonyanya kuipa.

3. Secondary quenching Kune simbi ine yakakwirira mechanical zvivakwa kana chaizvo coarse grained simbi, yechipiri quenching inofanira kushandiswa. Chinangwa chekudzima kwekutanga ndechekuvandudza chimiro chepakati, uye tembiricha yekudziya iri 30 ℃～50 ℃ pamusoro peAc3. Chinangwa chekudzima kwechipiri ndechekunatsiridza chimiro chepamusoro-soro kuti uwane yakanaka martensite uye yakaenzana yakagovaniswa granular yechipiri simenti. Tembiricha yekudziya ndeye 30℃～50℃ pamusoro peAc1.

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