Yuav ua li cas paub qhov txawv ntawm Q235B thiab Q235A steel coils (ntawm -site)?
A: Tshawb xyuas daim ntawv pov thawj zoo (cov khoom kuaj cuam tshuam); ntawm - qhov chaw sib txawv tsis tuaj yeem ua tau, thiab kev sib xyaw yog txwv nruj heev (A tsis haum rau cov qauv welded).
Dab tsi yog cov cuab yeej cuab tam rov ntsuas dua rau Q235 steel coils (cov cai hauv tsev)?
A: Raws li GB 50205 "Standard for Txais Kev Tsim Nyog Zoo ntawm Cov Qauv Hlau", cov khoom muaj zog, lub zog tensile, elongation, thiab txias dabtsi yog khoov yog retested rau txhua batch; carbon sib npaug kuj raug kuaj rau cov qauv welded.
Q235 steel coils yuav tsum tau corroded ua ntej lawv tuaj yeem siv hauv kev tsim kho?
A: Corrosion qhov tob> 10% ntawm nominal thickness, loj- cheeb tsam pitting corrosion, los yog qhov sib txawv ntawm qhov sib txawv los ntawm corrosion yog nruj me ntsis txwv tsis pub siv rau hauv load-cov kabmob; lawv tuaj yeem raug txo qis rau cov uas tsis yog-load-cov kabmob.
Dab tsi yog cov txheej txheem ua haujlwm rau Q235 steel coils hauv kev tsim kho?
A: Leveling → Txiav (shearing/plasma/laser) → Txias bending → Punching → Vuam → Painting. Cov txheej txheem no tsis tshua muaj - nyuaj thiab ua haujlwm tau zoo.
Dab tsi yog cov ntsiab lus tseem ceeb ntawm cov txheej txheem vuam rau Q235 steel coils (kev tsim kho)?
Teb: Siv E43 series vuam electrodes (xws li E4303); Q235B thiab saum toj no tuaj yeem welded hauv txhua txoj haujlwm; tswj cov vuam tam sim no, voltage, thiab ceev kom tsis txhob overheating thiab tawg; ntxuav lub vuam slag thiab tshuaj xyuas qhov vuam (zoo li / tsis- puas tsuaj) tom qab vuam.