Yuav ua li cas xaiv cov khoom ntawm txias-rolled steel ntawv raws li nws daim ntawv thov?
Rau feem ntau stamping qhov chaw: SPCC, DC01 (tus nqi qis, zoo formability); Rau txoj kev sib sib zog nqus- kos duab qhov chaw: DC03, DC04 (siab elongation, zoo heev stamping kev ua haujlwm); Rau siab-qhov yuav tsum tau muaj zog: Q235 txias-qib dov, HSLA (tsawg- alloy siab-lub zog txias- yob daim ntawv); Rau corrosion kuj yuav tsum tau: 304, 316 stainless hlau txias{12}}rolled ntawv.
Dab tsi yuav tsum tau qhia meej thaum yuav khoom txias -rolled steel ntawv?
Cov nram qab no yuav tsum tau qhia kom meej: cov khoom, thickness (xws li kam rau ua), dav, ntev (los yog coil hnyav), nto zoo qib, txhua yam khoom yuav tsum tau, siv cov qauv, thiab cov kev ua raws li nram no (xws li stamping, painting).
Dab tsi yog "kev xa khoom" ntawm cov ntawv txias -rolled steel? Yuav xaiv li cas?
Annealed xeev (lub xeev mos, HRB Tsawg dua los yog sib npaug rau 60): Haum rau txoj kev stamping thiab khoov; Lub xeev tiaj tus (semi-lub xeev nyuaj, HRB 60-80): Haum rau kev stamping yooj yim thiab txiav; Cold-rolled hard state (unannealed, HRB>=80): Tsim nyog rau cov khoom siv uas tsis tas yuav tsum tau ua, nrog lub zog siab. Cov txheej txheem xaiv: Qhov nyuaj dua ntawm kev ua haujlwm tom ntej, qhov tsim nyog ntau dua yog xaiv lub xeev mos.
Cov txheej txheem ua dab tsi yog qhov tsim nyog rau cov ntawv txias -rolled?
Haum rau stamping (sib sib zog nqus, kos duab kos), khoov, shearing, vuam (arc vuam, tsis kam vuam), txheej (xim, hmoov txheej), electroplating (zinc plating, chrome plating), thiab lwm yam txheej txheem ua.
Dab tsi yuav tsum tau sau tseg thaum stamping txias - cov ntawv dov? ① Xaiv cov roj nplua nyeem uas tsim nyog (xws li cov roj stamping) kom tsis txhob khawb qhov chaw; ② Tswj lub stamping ceev thiab siab los tiv thaiv daim ntawv tsis txhob tawg; ③ Qhov kev tshem tawm tuag yuav tsum sib npaug ntawm daim ntawv tuab (feem ntau 10% -15% ntawm daim ntawv tuab); ④ Annealed txias-kuav los tiag nplooj ntawv yog nyiam los xyuas kom meej formability.