quenching mai girmagalibi ana amfani da shi don quenching na sassan ƙarfe na masana'antu.Wani nau'i ne na hanyar maganin zafi na ƙarfe wanda ke sa filin aikin ya samar da wani ɗan gajeren lokaci, da sauri ya zafi saman sassan, sa'an nan kuma ya yi sauri ya kashe. kayan aiki.
Ka'idar dumama shigar da kayan aiki: Ana sanya kayan aikin a cikin iska tare da bututun jan ƙarfe a cikin firikwensin, bayan samun damar zuwa matsakaicin mitar ko babban mitar halin yanzu (ac), wanda aka kafa a saman tare da mitar halin yanzu, saman aikin ko dumama cikin gida ('yan seconds zuwa yanayin zafi na 800 ~ 1000 ℃, core har yanzu yana kusa da zafin jiki) nan da nan bayan da yawa seconds da sauri fesa (tsoma) sanyaya ruwa (ko fesa mai nutsewar sanyaya) cikakken aikin wuta na nutsewa, Yi workpiece surface ko na gida cimma daidai taurin bukatun.
Idan aka kwatanta da dumama quenching, yana da:
1. Gudun dumama yana da sauri sosai, wanda zai iya fadada kewayon yanayin yanayin canjin jiki kuma ya rage lokacin canzawa.
2. Very lafiya cryptocrystalline martensite za a iya samu a kan surface na workpiece bayan quenching, da kuma taurin ne dan kadan mafi girma (2 ~ 3HRC) .Low brittleness da high gajiya ƙarfi.
3. The workpiece bi da tsari ba sauki oxidize da decarbonize, kuma ko da wasu daga cikin workpiece za a iya kai tsaye harhada da kuma amfani da bayan aiki.
4, Layer hardening yana da zurfi, mai sauƙi don sarrafa aiki, mai sauƙin gane mechanization, aiki da kai.
5, zafi saman dumama quenching
Ana amfani da babban mitar quenching zuwa kayan aikin wanda ke buƙatar ɗaukar aikin madadin lodi kamar torfi da lankwasawa.Yana buƙatar farfajiyar saman don ɗaukar matsananciyar damuwa ko juriya fiye da ainihin, kuma saman aikin yana buƙatar ƙarfafawa.Ya dace da karfe tare da abun ciki na carbon We = 0.40 ~ 0.50%.
Lokacin aikawa: Juni-10-2021