Q: ASTM A53 welded kav puas siv tau rau kev siv chav dej?A: Yog, ASTM A53 Qib B welded kav yuav siv tau rau chav ua haujlwm nrog qhov kub siab tshaj plaws ntawm 232℃(450℃F), muab lawv ua tau raws li qhov xav tau ntawm daim ntawv thov.
Q: Dab tsi yog qhov txawv ntawm ASTM A53 Hom E thiab Hom F welded kav raws li kev tsim khoom?A: Hom E (ERW) yog tsim los ntawm cua sov cov hlau sawb thiab vuam nws siv hluav taws xob tsis kam, ua rau muaj kev sib khi nruj. Hom F (lub qhov cub- pob tw welded) yog tsim los ntawm cua sov lub sawb mus rau lub xeev molten thiab taub qab- vuam nws tsis tu ncua, nrog ib tug me ntsis weld zog dua hom E.
Q: Dab tsi yog qhov siab tshaj plaws nominal txoj kab uas hla ntawm ASTM A53 welded kav?A: ASTM A53 welded kav yog muaj nyob rau hauv nominal diameters los ntawm 1/8 nti mus rau 24 ntiv tes, npog feem ntau industrial low - mus rau - nruab nrab siab pipeline xav tau.
Q: Dab tsi yog cov khoom ntawm GB / T 3091-2015 Qib Q235B welded yeeb nkab?A: GB / T 3091-2015 Qib Q235B welded yeeb nkab yog tsim los ntawm cov qauv hlau, nrog rau qhov tsawg kawg nkaus lub zog ntawm 235 MPa, tensile zog ntawm 375-500 MPa, thiab zoo weldability thiab plasticity.
Q: Lub hom phiaj ntawm galvanizing ntawm GB / T 3091 welded kav yog dab tsi?A: Galvanizing (kub-dip galvanizing lossis electro{1}}galvanizing) tsim cov zinc txheej ntawm cov yeeb nkab, uas tuaj yeem tiv thaiv corrosion ntawm dej, huab cua, thiab lwm yam xov xwm, ncua kev pab cuam lub neej ntawm cov yeeb nkab, tshwj xeeb tshaj yog rau kev xa dej thiab roj.
