[[TitleIndustry]]

Dab tsi yog kub dov? Dab tsi yog qhov zoo thiab qhov tsis zoo?

Date:Jun 05, 2019

Kub dov yog qhov tsim cov txheej txheem ntawm cov phaj steel, uas hais txog txoj kev sib sau ua haujlwm nyob rau hauv cov xwm txheej uas cov hlau los yog cov hlau tsis tas yuav ua kom txias thiab softer. Cov yam ntxwv tseem ceeb yog:

Cov txiaj ntsig zoo: txheej txheem casting ntawm ingot tuaj yeem rhuav tshem, cov nplej loj ntawm cov hlau tuaj yeem kho, thiab qhov tsis xws ntawm microstructure yuav raug tshem tawm, kom lub microstructure thiab cov yam ntxwv ntawm cov hlau tuaj yeem txhim kho. Qhov kev txhim kho no yog qhov tseem ceeb hauv cov kev taw qhia kom yob, kom cov hlau tsis yog isotropic rau qee yam, thiab tus npuas, kab nrib pleb thiab looseness tsim thaum lub sijhawm nchuav tseem tuaj yeem welded nyob rau hauv qhov kev txiav txim siab ntawm kub thiab siab.

Qhov Tsis Nqis:

1. Tom qab cov kub dov, cov hlau tsis xeb (feem ntau yog sulfides thiab oxides, thiab silicate) hauv cov hlau tau nias rau hauv cov ntawv nyias, uas ua rau muaj kev cuam tshuam (sib cuam tshuam). Delamination zoo heev thab plaub lub zog tensile ntawm cov hlau raws cov kev taw qhia tuab, thiab cov kua muag interlaminar yuav tshwm sim thaum weld shrinkage. Lub zos txoj kev yuam kev tsim los ntawm weld shrinkage feem ntau ob peb zaug ntawm cov zis taw tes lim, uas loj npaum li cas uas tshwm sim los ntawm kev thauj khoom.

2.Cov kev nyuaj siab tshwm sim los ntawm kev txias txias. Qhov kev nyuaj siab nyob sab hauv yog tus kheej sab hauv qhov kev ua kom muaj kev ntxhov siab tsis muaj lub zog sab nraud, thiab qhov kub ntawm ntu ntu steel nrog txhua yam ntawm seem muaj hom kev ntxhov siab no. Qhov loj dua qhov seem ntawm qhov seem ntawm seem steel yog, qhov kev ntxhov siab ntau dua yog. Txawm hais tias qhov kev nyuaj siab nyob hauv tus kheej yog qhov sib npaug ntawm qhov sib npaug, nws tseem muaj qee yam cuam tshuam rau kev ua tau zoo ntawm cov tswv cuab steel raws li kev ua ntawm sab nraud quab yuam. Piv txwv li, nws yuav muaj qhov tsis zoo rau deformation, ruaj khov, nkees tsis kam thiab lwm yam.


Tug: Dab tsi yog austenite stainless hlau:

Tom ntej: Yuav ua li cas cov hnav-resistant hlau yuav siv tau thiab yuav ua li cas nws nws?