Yuav ua li cas thiaj txiav txim siab yog tias daim ntawv txias -rolled yog qhov ua tau zoo?
① Cov tsos: Tsis muaj qhov pom tseeb khawb, pitting, oxidation, lossis warping;
② Dimensions: Thickness thiab dav ntsuas nrog calipers, deviations nyob rau hauv tus qauv ntau yam;
③ Kev ua tau zoo: Yield zog thiab elongation kuaj los ntawm tensile xeem, raws li cov khoom yuav tsum tau;
④ Nto roughness: Ntsuas nrog roughness meter, ua tau raws li qhov yuav tsum tau siv.
Dab tsi ua rau "delamination" tsis xws luag hauv cov ntawv txias -rolled?
Qhov laj thawj tseem ceeb:
① Internal inclusions thiab npuas nyob rau hauv kub - dov raw khoom;
② Kev txo qis heev thaum lub caij txias dov, ua rau kev sib cais sab hauv;
③ Ntau dhau qhov kub thiab txias los yog lub sij hawm tuav lub sij hawm ntev, ua rau cov nplej loj thiab tsis sib xws.
Dab tsi yog qhov txawv ntawm cov ntawv txias- dov thiab galvanized txias- cov ntawv dov?
Galvanized txias-cov ntawv dov muaj ib txheej zinc plated rau saum npoo (kub-dip galvanizing lossis electroplating). Lawv cov txiaj ntsig tseem ceeb yog muaj zog tiv thaiv corrosion, tsis tas yuav muaj kev tiv thaiv xeb ntxiv, tab sis tus nqi siab dua; Cov khaub thuas zoo tib yam- cov ntawv dov yuav tsum muaj kev tiv thaiv xeb tom ntej, uas tsis tshua kim.
Txoj kev loj hlob ntawm cov ntawv txias - dov yog dab tsi?
① Lub Zog Muaj Zog: Txhim kho siab -lub zog txias- cov ntawv dov (xws li DP steel thiab TRIP steel) kom ua tau raws li cov kev xav tau ntawm lub tsheb; ② High Precision: Txhim kho thickness thiab dav kam rau ua tswj kom haum rau precision manufacturing; ③ Kev Tiv Thaiv Ib puag ncig: Txais cov txheej txheem zoo ib puag ncig xws li chromium-dawb passivation thiab dej-raws li txheej; ④ Multifunctionality: Tsim kev sib xyaw txias- cov ntawv dov uas sib xyaw ua ke muaj zog, siab formability, thiab corrosion kuj.
Cov nqi tseem ceeb ntawm cov ntawv txias - dov yog dab tsi?
Cov nqi tseem ceeb: Kub- dov raw khoom cov nqi (suav txog 60%-70%), cov nqi ua haujlwm txias txias (dov, annealing, leveling), nqi pickling, ntim thiab nqi thauj mus los, se, thiab nyiaj tau los. Cov nqi tau cuam tshuam zoo heev los ntawm kev lag luam steel, cov khoom siv tshwj xeeb, thiab ntim khoom.