GB/T3091-2015 yog tus qauv rau welded carbon steel kav uas yog siv nyob rau hauv ntau yam kev siv. Nws yog ib qho tseem ceeb ntawm cov txheej txheem uas nteg cov kev qhia tshwj xeeb thiab cov tseev kom muaj rau vuam steel kav uas yog npaj rau kev thauj cov kua dej, dej, roj, thiab lwm yam. Daim ntawv thov ntawm tus qauv no tau lees paub qhov kev xa khoom ntawm cov kav dej zoo tshaj plaws, uas tuaj yeem tiv taus ntau yam kev mob tshwm sim thaum lub sijhawm thauj cov kua dej.
Ib qho tseem ceeb ntawm tus qauv no yog nws muab cov ntsiab lus hais txog kev tsim, tsim khoom, ntim khoom, thiab tshuaj xyuas cov kav hlau. Qhov no ua kom ntseeg tau tias txhua yam raug coj los txiav txim siab, thiab txhua qhov thiab txhua cov yeeb nkab tsim tau raug lees paub tias ua tau raws li cov qauv teev tseg. Qhov tshwj xeeb tseem ceeb ntawm kev ntim khoom thiab kev tshuaj xyuas tau lees paub tias cov kav dej muaj kev tiv thaiv los ntawm kev puas tsuaj thaum lub sijhawm thauj mus los thiab nyob rau hauv qhov kev pom zoo thaum lawv mus txog qhov chaw lawv xav tau.
Lwm qhov tshwj xeeb ntawm GB / T3091-2015 tus qauv yog tias nws teev cov khoom siv uas tuaj yeem siv los tsim cov kav dej no. Tus qauv tso cai rau ob yam ntaub ntawv tseem ceeb- Q195 thiab Q235, uas yog cov khoom zoo zoo steel uas tau siv dav hauv ntau daim ntawv thov kev lag luam. Nrog rau cov qauv no, nws tau lees paub tias txhua cov yeeb nkab steel uas tsim los ntawm cov khoom siv no tau dhau los ua cov txheej txheem tshuaj xyuas nruj thiab tau raug sim rau nws cov kav ntev, lub zog tensile, thiab tag nrho cov khoom zoo.
Tsis tas li ntawd, GB/T3091-2015 nteg cov lus qhia tshwj xeeb rau cov txheej txheem vuam. Nws xav kom cov vuam yuav tsum tau ua los ntawm kev siv roj lossis hluav taws xob vuam, thiab cov txheej txheem vuam yuav tsum tau ua raws li tus qauv. Qhov no ua kom cov txheej txheem vuam ua tiav kom raug thiab cov pob qij txha welded yog qhov ruaj khov, muaj zog, thiab tuaj yeem tiv taus ntau yam kev ntxhov siab.
Zuag qhia tag nrho, GB/T3091-2015 yog tus qauv uas tau lees paub thoob plaws tebchaws thiab thoob ntiaj teb. Nws yog ib qho cuab yeej tseem ceeb hauv kev tsim thiab kev thauj mus los ntawm welded carbon steel kav. Tus txheej txheem tseem ceeb ntawm kev lees paub zoo, kev sim nruj, thiab cov txheej txheem tshuaj xyuas muab kev lees paub tias cov khoom zoo tshaj plaws. Nws kuj tseem qhia cov tuam ntxhab thiab cov muag khoom, kom ntseeg tau tias txhua yam ntawm cov txheej txheem tsim khoom ua raws li cov qauv teev tseg. Yog li, GB / T3091-2015 yog tus qauv uas txhawb nqa kev ua tau zoo thiab kev nyab xeeb ntawm welded carbon steel kav hauv kev lag luam, ua rau nws yog ib qho tseem ceeb rau kev lag luam niaj hnub no.
