SUS 303/ SUS304/ SUS316 stainless hlau pas nrig yog ib qho tseem ceeb ntawm compressor, uas yuav tsum tau siab ncaj thiab deg hardness. Piv txwv li, ib tug piston pas nrig muaj ib txoj kab uas hla ntawm 63.5mm thiab ib tug ntev ntawm 630mm, thiab lub cylindricity yuav tsum yog φ0.019mm. Nws cylindrical nto yuav tsum tau hnav-resistant, thiab lub hardness ntawm lub saum npoo yuav tsum tau ntau tshaj los yog sib npaug rau 50HRC. Kev kho nitriding feem ntau yog siv rau hauv cov txheej txheem.
Cov txheej nitriding ntawm stainless hlau piston pas nrig tsuas tuaj yeem ncav cuag 0.2 hli hauv 24 teev nyob rau hauv ib puag ncig ion gas nitriding. Qhov ntsuas kub qis dua, lub sijhawm ntev nitriding yuav tsum tau ua. Txij li cov nitriding txheej ntawm stainless hlau piston pas nrig yog nyias nyias, kev kho nitriding yog npaj raws li txheej txheem hauv cov txheej txheem, thiab tag nrho cov tshuab ua tiav ua ntej nitriding. Vim tias qhov kub siab ntawm nitriding, piston pas nrig qee zaum muaj qee qhov deformation tom qab nitriding. Lub sijhawm no, tus pas nrig piston tau mus txog qhov loj me ntawm cov khoom tiav, thiab cov tawv tawv tawv yog siab heev. Nws tsis tuaj yeem ua kom zoo dua los ntawm machining. Txoj kev ncaj tswj tus nqi ntawm deformation nyob rau hauv ib tug tsim nyog ntau yam.
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