Hauv kev tsim kho thiab kev tsim kho, kev siv cov hlau channel (feem ntau hu ua C-section steel) yog ib qho uas siv ntau heev. Cov channel no yog ua los ntawm hlau thiab zoo li tus ntawv C, yog li ntawd thiaj li tau lub npe no. Lawv feem ntau siv hauv kev lag luam kev tsim kho thiab muaj ntau yam kev siv. Txhawm rau kom ntseeg tau tias qhov zoo thiab cov lus qhia ntawm C-section steel raug tswj hwm, American Society for Testing and Materials (ASTM) tsim cov qauv rau cov khoom no.
ASTM tus qauv rauCov hlau zoo li tus Chu ua ASTM A36. Tus qauv no suav nrog cov qauv zoo carbon steel rau kev siv rau hauv kev tsim kho riveted, bolted lossis welded ntawm cov choj thiab cov tsev thiab rau cov hom phiaj dav dav. Tus qauv no qhia meej txog cov kev cai rau cov khoom sib xyaw, cov khoom siv kho tshuab thiab lwm yam ntxwv tseem ceeb ntawm carbon steel C-sections.
Ib qho ntawm cov kev cai tseem ceeb ntawm ASTM A36 tus qauv rauC-channel hlauyog cov tshuaj lom neeg sib xyaw ntawm cov hlau siv hauv nws cov khoom tsim tawm. Tus qauv yuav tsum tau cov hlau siv rau C-sections kom muaj cov pa roj carbon, manganese, phosphorus, sulfur thiab tooj liab tshwj xeeb. Cov kev cai no ua kom ntseeg tau tias cov hlau siv hauv C-channel muaj cov khoom tsim nyog los muab lub zog thiab kev ruaj khov uas xav tau rau cov ntawv thov kev tsim kho.
Ntxiv rau cov tshuaj lom neeg sib xyaw, tus qauv ASTM A36 kuj tseem qhia txog cov khoom siv kho tshuab ntawm cov hlau siv hauv C-section steel. Qhov no suav nrog cov kev cai rau lub zog tawm los, lub zog tensile thiab elongation ntawm cov hlau. Cov khoom no yog qhov tseem ceeb kom ntseeg tau tias C-channel steel muaj lub zog thiab ductility tsim nyog los tiv taus cov loads thiab kev ntxhov siab uas ntsib hauv kev siv hauv kev tsim kho.
Tus qauv ASTM A36 kuj tseem suav nrog qhov ntev thiab qhov ncaj thiab qhov nkhaus uas yuav tsum tau ua rau C-section steel. Cov lus qhia no ua kom ntseeg tau tias C-sections tsim tawm raws li tus qauv no ua tau raws li qhov loj thiab cov duab uas xav tau rau lawv siv rau hauv cov haujlwm tsim kho.
Zuag qhia tag nrho, ASTM A36 tus qauv rau cov hlau zoo li tus C muab cov kev cai dav dav rau qhov zoo thiab kev ua tau zoo ntawm cov hlau no. Los ntawm kev ua raws li tus qauv no, cov chaw tsim khoom tuaj yeem ua kom ntseeg tau tias cov ntu C uas lawv tsim tawm ua tau raws li cov lus qhia uas xav tau rau kev siv hauv kev tsim kho.
Hauv kev xaus, ASTM tus qauv rauC-channel hlau, hu ua ASTM A36, qhia txog cov kev cai rau cov tshuaj lom neeg sib xyaw, cov khoom siv kho tshuab, thiab qhov ntev ntawm cov hlau no. Los ntawm kev ua tau raws li cov kev cai no, cov chaw tsim khoom tuaj yeem tsim cov C-sections zoo uas ua tau raws li cov qauv xav tau rau ntau yam kev siv hauv kev tsim kho. Txawm hais tias nws yog cov choj, cov tshuab lag luam lossis cov tsev, kev ua raws li ASTM C-section steel cov qauv ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov hlau siv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-07-2024