Luoyang Mingzhen cov kabmob hlau pob Co., Ltd

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Tshuab tsom cov bearing steel pob

Source:Luoyang mingzhen bearings hlau khoom Co., Ltd | Updated: Dec 27, 2016

Lub preheating ua ntej quenching cua kub: lub hom phiaj tseem ceeb yog kom lub sij hawm thiab txo qhov uas cov cua kub, quenching deformation thiab cracking, thiab kuj yuav pab txo kom tus nyiam overheat thiab decarburization, preheating da rauv tau lub qhov rooj, sov yog 600 degrees Celsius, preheating 8-10 feeb, yog hais tias qhov kub ntawm lub thawv yam rauv, sij hawm 530-550 degrees Celsius preheating ntev.

Cua sov lub sij hawm txiav txim: lub sij hawm cua kub ntawm ib cog raws nraim tsis yog tib yam, feem ntau thaum preheating cua kub sij hawm 10-15s / box fais rauv mm, rau qhov - 50s / mm. Without preheating ntsev cub tawg rau 30 - 35S / mm, box cub tawg rau ntawm 90-100s / mm. Nyob rau hauv qhov piv txwv GCr15 cov kabmob pob tom qab preheating nyob rau hauv lub cub tawg ntsev quenching cua sov lub sij hawm los xav txog lub cub tawg load siv 8 feeb.

Lub quenching: vim hais tias cov kabmob pob GCr15 alloy uas hais ntxiv rau tabkaum muaj pes tsawg leeg yam, tab sis kuj yuav tiv thaiv tau qhov deformation ntawm GCr15 bearing hlau thiab muaj tej yam toughness thiab qaug zog ua tau, ces cov roj cia txias

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