Khoom siv rau flat washer:
Lub tshuab ntxhua khaub ncaws tsis muaj cov khoom siv kho tshuab feem ntau yog ua los ntawm cov khoom siv kaum, xws li Q235A. Thaum cov kev xav tau hardness tsis siab, cov ntaub ntawv tuab tuaj yeem ua kom ncav cuag qhov xav tau hardness. Gaskets xws li lub caij nplooj ntoos hlav pads feem ntau yog ua los ntawm 65Mn 70# los yog S 50CM -- S 70CM, uas yuav tsum tau kho cua sov (quenching ntxiv tempering).
Rivets, tus pin ncej chav kawm:
Rivet, tus pin ncej chav kawm cov khoom siv dav dav thiab bolts yog tib yam, tab sis qee qhov rivet hardness tsis tuaj yeem siab dhau, thiab txawm tias qee qhov kev xav tau ntawm HRB60 hauv qab no, qhov kev ua haujlwm ntawm cov khoom tawv tawv hauv HRB70-80, yog li qee qhov mus dhau. annealing kom ua tiav cov kev xav tau ntawm kev ua haujlwm.
Tus kheej tapping ntsia hlau feem ntau siv C1018 C1020 C1022 thiab lwm yam ntaub ntawv, tab sis qee cov tuam txhab tsim khoom hauv tsev kom txuag tau tus nqi, txiav cov fab, siv 18# 15# 20# ntau manufacturers nrog Q235A, thiab tom qab ntawd nto carburization, yog li ua los ntawm lub plawv toughness ntawm tus kheej tapping ntsia hlau tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, yooj yim tawg.
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