Kev tshuaj xyuas ntawm stainless hlau

Stainless hlau factories tsim txhua yam ntawm cov hlau tsis muaj steel, thiab txhua yam kev tshuaj xyuas (kev ntsuam xyuas) yuav tsum tau ua raws li cov qauv sib xws thiab cov ntaub ntawv qhia ua ntej tawm hauv lub hoobkas. Kev sim kev tshawb fawb yog lub hauv paus ntawm txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, nws yog lub cim ntawm kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, thiab yog ib qho tseem ceeb hauv kev txhawb nqa kev loj hlob ntawm science thiab technology. Siv ntau yam kev ua tau zoo los tshuaj xyuas qhov zoo ntawm cov khoom tiav ib nrab thiab cov khoom tiav, thiab cov txheej txheem tshuaj xyuas yuav tsum raug suav tias yog cov txheej txheem tseem ceeb hauv cov txheej txheem tsim khoom.

Kev tshuaj xyuas zoo steel yog qhov tseem ceeb tshaj plaws los coj cov chaw tsim khoom siv hlau kom txuas ntxiv txhim kho cov cuab yeej tsim khoom, txhim kho cov khoom zoo, tsim cov khoom steel uas ua tau raws li cov qauv, thiab qhia cov neeg siv xaiv cov ntaub ntawv steel tsim nyog raws li kev soj ntsuam, thiab ua kom txias, kub ua thiab kho cua sov kom raug.

1 Kev soj ntsuam tus qauv

Cov txheej txheem kev tshuaj xyuas cov hlau muaj xws li tshuaj lom neeg muaj pes tsawg leeg, tshuaj xyuas macroscopic, tshuaj ntsuam xyuas metallographic, tshuaj xyuas kev ua haujlwm, kev tshuaj xyuas cov txheej txheem, kev tshuaj xyuas lub cev, tshuaj xyuas kev ua haujlwm, tshuaj xyuas tsis muaj kev puas tsuaj thiab kev tshuaj xyuas cov txheej txheem kev kho cua sov, thiab lwm yam.

2 Cov khoom kuaj xyuas

Vim cov khoom siv stainless hlau sib txawv, cov khoom siv tshuaj ntsuam xyuas yuav tsum tau sib txawv. Cov khoom tshuaj ntsuam xyuas muaj los ntawm ob peb yam khoom mus rau ntau tshaj li kaum ob yam khoom. Txhua yam khoom siv stainless hlau yuav tsum tau ua tib zoo tshuaj xyuas ib qho los ntawm ib qho raws li cov khoom soj ntsuam tau teev tseg hauv cov txheej txheem kev sib raug zoo. Txhua yam tshuaj ntsuam xyuas yuav tsum yog Meticulous ua raws li cov qauv tshuaj ntsuam xyuas.

Cov hauv qab no yog cov lus qhia luv luv rau cov khoom soj ntsuam thiab cov cim qhia txog stainless hlau.

(1) Tshuaj muaj pes tsawg leeg:Txhua qib stainless hlau muaj qee yam tshuaj muaj pes tsawg leeg, uas yog feem ntau ntawm ntau yam tshuaj hauv cov hlau. Kev lees paub cov tshuaj muaj pes tsawg leeg ntawm cov hlau yog qhov tseem ceeb tshaj plaws rau cov hlau. Tsuas yog los ntawm kev txheeb xyuas cov tshuaj muaj pes tsawg leeg tuaj yeem txiav txim siab seb cov tshuaj muaj pes tsawg leeg ntawm ib qib ntawm cov hlau ua tau raws li tus qauv.

(2) Macroscopic soj ntsuam:Kev tshuaj xyuas macroscopic yog ib txoj hauv kev tshuaj xyuas cov hlau nto lossis ntu nrog lub qhov muag liab qab lossis lub iav tsom iav tsis muaj ntau dua 10 zaug los txiav txim siab nws cov qauv macroscopic. Kuj tseem hu ua kev tshuaj xyuas cov ntaub so ntswg qis, muaj ntau txoj hauv kev tshuaj xyuas, suav nrog acid leaching test, sulfur printing test, thiab lwm yam.

Acid leaching test tuaj yeem pom qhov porosity, central porosity, ingot segregation, point segregation, subcutaneous npuas, residual shrinkage kab noj hniav, daim tawv nqaij tig, dawb me ntsis, axial intergranular tawg, sab hauv npuas, non-metallic inclusions (pom rau ntawm qhov muag liab qab), thiab lwm yam. ntsuas.

(3) Metallographic qauv tshuaj xyuas:Qhov no yog siv lub tshuab ntsuas metallographic los tshuaj xyuas cov qauv sab hauv thiab qhov tsis xws ntawm cov hlau. Kev tshuaj xyuas metallographic suav nrog kev txiav txim siab ntawm austenite grain loj, kev tshuaj xyuas cov khoom tsis yog xim hlau hauv cov hlau, kev tshuaj xyuas qhov tob ntawm decarburization txheej, thiab kev tshuaj xyuas cov tshuaj muaj pes tsawg leeg hauv cov hlau, thiab lwm yam.

(4) Hardness:Hardness yog qhov ntsuas los ntsuas qhov softness thiab hardness ntawm cov ntaub ntawv hlau, thiab nws yog lub peev xwm ntawm cov ntaub ntawv hlau los tiv thaiv cov yas deformation hauv zos. Raws li cov kev sim sib txawv, qhov nyuaj tuaj yeem muab faib ua ntau hom xws li Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness thiab microhardness. Lub peev xwm ntawm kev siv cov kev sim hardness no kuj txawv. Cov kev siv feem ntau yog Brinell hardness test method thiab Rockwell hardness test method.

(5) Tensile xeem:Ob lub zog Performance index thiab cov yas index yog ntsuas los ntawm kev ntsuas tensile ntawm cov khoom siv. Cov ntaub ntawv ntawm kev ntsuas tensile yog lub hauv paus tseem ceeb rau kev xaiv cov ntaub ntawv hauv engineering tsim thiab kev tsim khoom tsim khoom.

Qhov ntsuas qhov ntsuas kub ib txwm muaj xws li qhov taw qhia tawm los (lossis teev cov kev ntxhov siab tsis sib xws) thiab lub zog tensile. Cov ntsuas kub siab lub zog muaj xws li creep lub zog, lub zog ruaj khov, siab kub teev tsis sib npaug elongation kev ntxhov siab, thiab lwm yam.

(6) Impact test:Kev ntsuam xyuas qhov cuam tshuam tuaj yeem ntsuas qhov cuam tshuam lub zog nqus ntawm cov khoom. Lub thiaj li hu ua kev cuam tshuam lub zog nqus yog lub zog nqus thaum qhov kev sim ntawm cov duab thiab qhov loj me tawg hauv qhov cuam tshuam. Qhov ntau dua qhov cuam tshuam lub zog nqus los ntawm cov khoom siv, qhov siab dua nws lub peev xwm los tiv thaiv kev cuam tshuam.

(7) Kev ntsuam xyuas tsis muaj kev puas tsuaj:Kev kuaj tsis yog kev puas tsuaj kuj yog hu ua non-destructive testing. Nws yog ib txoj hauv kev tshuaj xyuas los txheeb xyuas qhov tsis xws luag thiab txiav txim rau lawv hom, qhov loj me, cov duab thiab qhov chaw yam tsis muaj kev puas tsuaj loj thiab kev ncaj ncees ntawm cov qauv ntawm cov khoom.

(8) Kev tshuaj xyuas qhov tsis xws luag:Qhov no yog txhawm rau tshuaj xyuas cov hlau saum npoo thiab nws cov subcutaneous defects. Cov ntsiab lus ntawm kev tshuaj xyuas qhov chaw steel yog los tshuaj xyuas qhov tsis xws luag xws li cov kab nrib pleb, slag inclusions, oxygen deficiency, oxygen tom, tev, thiab khawb.