Dab tsi yog cov txheej txheem tsim khoom ntawm SPCC txias -rolled coil?
A: Cov txheej txheem raug yog: kub- dov raw khoom coil → pickling (tshem tawm oxide nplai) → txias dov (ntau- dhau dov) → annealing (tso tawm ua hauj lwm hardening) → leveling (kho daim ntawv zoo thiab nto tiav) → tiav (slitting thiab ntim khoom.)
Cov txheej txheem annealing cuam tshuam dab tsi ntawm kev ua haujlwm ntawm SPCC txias -rolled coil?
A: Annealing yog txheej txheem tseem ceeb hauv SPCC ntau lawm, nws lub hom phiaj yog txhawm rau tshem tawm kev ua haujlwm nyuaj los ntawm txias dov thiab rov ua cov yas. Tsis txaus annealing kub yuav ua rau siab heev steel hardness thiab stamping tawg; kub annealing ntau heev yuav ua rau coarse nplej, txo lub zog thiab nto tiav.
Dab tsi yog qhov tsis xws luag ntawm SPCC txias -rolled coil? Dab tsi yog qhov tshwm sim?
A: Feem ntau cov teeb meem thiab lawv cov laj thawj:
Kos: impurities los yog burrs nyob rau saum npoo ntawm dov yob thiab qhia yob, los yog tshwm sim los ntawm kev sib txhuam thaum winding;
Pockmarks: Oxide nplai nyob rau saum npoo ntawm cov khoom kub- dov raw khoom tsis raug muab khaws cia, lossis qhov chaw txias - yob yob yog ntxhib;
Waviness: Tsis sib npaug ntawm cov dov quab yuam, los yog qhov kub tsis sib xws thaum lub sij hawm annealing ua rau cov ntawv tsis zoo;
Cov kab xeb: qhov chaw ntub dej rau cov khoom tiav, lossis siv tsis sib xws ntawm xeb-cov roj tiv thaiv.
Dab tsi yog qhov tuab kam rau ua tus qauv rau SPCC txias -rolled coils?
A: Raws li JIS G 3141 tus qauv, lub thickness kam rau ua nws txawv nyob ntawm seb thickness ntau npaum li cas. Piv txwv li:
Thickness Tsawg dua los yog sib npaug rau 1.0mm, kam rau ua yog ± 0.05mm;
Thickness 1.0 ~ 2.0mm, kam rau ua yog ± 0.07mm;
Cov qib tshwj xeeb kam rau ua (piv txwv li, qib zoo tib yam, qib precision) yuav tsum raug xa mus rau daim ntawv cog lus.
Yuav ua li cas los txiav txim seb qhov zoo ntawm SPCC txias - dov coils puas tau? A: Cov kev cai hauv qab no yuav tsum tau ua raws li: qhov saum npoo yuav tsum tsis muaj qhov pom tseeb, khawb, qhov chaw xeb, tev, thiab lwm yam tsis xws luag; Qhov saum npoo tiav yuav tsum ua tau raws li tus qauv pom zoo (xws li Ra Tsawg dua lossis sib npaug rau 1.6μm); thiab kev tshuaj xyuas qhov muag lossis qhov chaw roughness tester yuav tsum tau ua raws li tus qauv.