Q235B sawv cev li cas?
Q235Bsawv cev rau hom zoo tib yam carbon structural steel. "Q" qhia cov ntsiab lus tawm los, "235" qhia qhov tsawg kawg nkaus tawm lub zog ntawm 235 MPa, thiab "B" qhia cov qib zoo, qhia tias cov hlau tau dhau los ntawm 20℃cuam tshuam kev xeem.
Dab tsi yog qhov txawv ntawm qhov zoo ntawm Q235B SSAW steel yeeb nkab thiab ncaj seam welded yeeb nkab (LSAW / ERW)?
Lub ntsiab sib txawv yog nyob rau hauv weld tsos:SSAW (kauv welded) steel yeeb nkabmuaj kab pheeb ces kaum / kauv weld seam, thaum LSAW (longitudinal welded) thiab ERW (kuj welded) steel yeeb nkab muaj ib tug ncaj weld seam.
Dab tsi yog cov txheej txheem rau Q235B SSAW steel yeeb nkab?
Common coatings rauQ235B SSAW steel yeeb nkabsuav nrog cov tshuaj tiv thaiv-cov coatings xws li 3LPE (trilayer polyethylene), FBE (fusion bonded epoxy), thiab cov pob zeb counterweight coatings, nrog rau cov kev xaiv yooj yim xws li xim dub, galvanizing, lossis oiling.
Dab tsi yog cov ntaub ntawv tseem ceeb rau kev tsim Q235B SSAW steel yeeb nkab?
Lub ntsiab raw khoom rauQ235B SSAW steel yeeb nkabyog steel sawb (los yog coiled steel), vuam hlau, thiab flux. Hlau sawb yog cov khoom siv tseem ceeb thiab tau ua tiav rau hauv cov duab kauv; welding hlau thiab flux yog siv los ua submerged arc vuam, yog li tsim cov vuam seam ntawm cov yeeb nkab steel.
Dab tsi yog qhov tsis zoo lossis kev txwv ntawm Q235B SSAW steel yeeb nkab?
Lub ntsiab txwv ntawmQ235B SSAW steel yeeb nkablies nyob rau hauv nws lub zog txwv, nws susceptibility rau corrosion yog tshuav tsis kho, thiab yuav tsum tau nruj zoo tswj thaum lub sij hawm tsim khoom kom tsis txhob muaj qhov tsis xws luag xws li weld seams.
