Kedu ka carburize na ikpo ọkụ si emeso camshafts?

1. Direct quenching mgbe carburizing nwere uru nke elu mmepụta arụmọrụ, ọnụ ala, na oxidative decarburization. Otú ọ dị, n’ihi na elu carburizing okpomọkụ, na austenite grains na-eto eto, na martensite bụ coarser mgbe quenching, na austenite ejigidere E nwekwara ndị ọzọ ozu, ya mere eyi iguzogide na ike adịghị mma. Kwesịrị ekwesị maka nchara dị mma nke ọma na akụkụ ndị nwere obere nguzogide ike eyi ma ọ bụ akụkụ dị ala na-ebu ibu.

2. Otu oge quenching bụ mgbe carburizing na-eji nwayọọ nwayọọ dị jụụ, wee mee ka ọ dịkwuo ọkụ n’elu okpomọkụ dị oke egwu wee mebie. E jiri ya tụnyere imenyụ ọkụ ozugbo, imenyụ otu oge nwere ike imezi ihe owuwu ígwè ahụ ruo n’ókè ụfọdụ. Mgbe ihe achọrọ nke isi ihe dị elu, okpomọkụ na-ekpo ọkụ nke quenching dị ntakịrị elu karịa Ac3. N’ihi na akụkụ ndị na-adịghị ukwuu ibu ma nwere elu eyi nguzogide na elu ike ike ịrụ ọrụ chọrọ n’elu. The quenching okpomọkụ kwesịrị ịbụ 30 ℃～50 ℃ n’elu Ac1, nke mere na n’elu oyi akwa ga-nnụcha, ma isi Ọdịdị ga-mma nke ukwuu, na arụmọrụ ga-adịtụ njọ.

3. Nke abụọ quenching N’ihi na ígwè na elu n’ibu Njirimara ma ọ bụ n’ezie keadighi rarii grained ígwè, secondary quenching kwesịrị iji. Ebumnobi nke mbụ quenching bụ melite isi Ọdịdị, na kpo oku okpomọkụ bụ 30 ℃ ~ 50 ℃ n’elu Ac3. Ebumnobi nke abụọ quenching bụ nụchaa elu oyi akwa Ọdịdị iji nweta ọmarịcha martensite na uniformly ekesa granular secondary cementite. The kpo oku okpomọkụ bụ 30 ℃ ~ 50 ℃ n’elu Ac1.

https://songdaokeji.cn/14033.html

https://songdaokeji.cn/14035.html

https://songdaokeji.cn/14037.html