Cold Rolled SPCC yog lub npe nrov hauv kev lag luam steel, thiab feem ntau sau npe tias 'txias dov phaj', 'kev siv dav dav', thiab lwm yam.Txawm li cas los xij, cov phooj ywg yuav tsis paub tias tseem muaj '1/2 nyuaj', 'annealed nkaus xwb', 'pitted los yog du', thiab lwm yam hauv SPCC tus qauv.Kuv tsis nkag siab cov lus nug xws li "Dab tsi yog qhov txawv ntawm SPCC SD thiab SPCT?"
Peb tseem hais tias hauv kev lag luam steel, "yog tias koj yuav qhov tsis ncaj ncees lawm, koj yuav poob nyiaj."Tus editor yuav txheeb xyuas nws kom meej rau koj hnub no.
SPCC Hom Traceability
SPCC yog muab los ntawm JIS, uas yog lub ntsiab lus ntawm Japanese Industrial Standards.
SPCC suav nrog JIS G 3141. Lub npe ntawm tus lej qauv no yog "Cold Rolled Steel Phajthiab Steel Strip", uas suav nrog tsib qib: SPCC, SPCD, SPCE, SPCF, SPCG, thiab lwm yam, uas tsim nyog rau kev thov sib txawv.
Sib txawv tempering degrees ntawm SPCC
Peb feem ntau hais tias lub cim lag luam tsis tuaj yeem nyob ib leeg.Cov lus piav qhia tiav yog tus qauv naj npawb + cov cim lag luam + cov lus tom qab.Tau kawg, txoj cai no kuj muaj rau SPCC.Cov lus sib txawv hauv JIS tus qauv sawv cev rau cov khoom sib txawv, qhov tseem ceeb tshaj plaws yog cov cai tempering.
Tempering degree:
A - Annealing nkaus xwb
S-Standard tempering degree
8 — 1/8 ib
4 — 1/4 IB
2 — 1/2 IB
1 — IB
Dab tsi ua [annealing nkaus xwb] thiab [empering degrees] txhais?
Standard tempering degree feem ntau yog hais txog annealing + smoothing txheej txheem.Yuav ua li cas yog nws tsis tiaj tus, ces nws yog [annealed nkaus xwb].
Txawm li cas los xij, txij li cov txheej txheem annealing ntawm cov nroj tsuag steel yog tam sim no nruab nrog lub tshuab smoothing, thiab yog tias nws tsis sib xws, lub phaj zoo tsis tuaj yeem lav tau, yog li cov khoom tsis sib xws tsis tshua pom tam sim no, uas yog, cov khoom zoo li SPCC A yog tsawg.
Vim li cas ho tsis muaj qhov yuav tsum tau muaj rau yielding, tensile resistance, thiab extension?
Vim tias tsis muaj qhov yuav tsum tau ua hauv JIS tus qauv ntawm SPCC.Yog tias koj xav kom tus nqi ntsuas tensile, koj yuav tsum tau ntxiv T tom qab SPCC los ua SPCT.
Dab tsi yog 8, 4, 2,1 cov ntaub ntawv nyuaj hauv tus qauv?
Yog tias cov txheej txheem annealing tau hloov pauv txawv, cov khoom sib txawv yuav tau txais, xws li 1/8 nyuaj lossis 1/4 nyuaj, thiab lwm yam.
Nco tseg: Nws yuav tsum tau muab sau tseg tias qhov "nyuaj" sawv cev los ntawm cov lus kawg 1 tsis yog qhov peb feem ntau hu ua "hard dov coil".Nws tseem yuav tsum tau qis-kub annealing.
Dab tsi yog qhov yuav tsum tau ua haujlwm rau cov ntaub ntawv nyuaj?
Txhua yam nyob hauv cov qauv.
Rau cov khoom uas sib txawv hardness, tsuas yog tus nqi hardness yog guaranteed, thiab lwm yam xws li tawm los, tensile zog, elongation, thiab lwm yam, thiab txawm cov khoom xyaw yog tsis guaranteed.
Tswv yim
1. Hauv kev lag luam, peb feem ntau pom tias qee lub npe SPCC tsis muaj cov lus S rau ntawm Tuam Tshoj cov ntaub ntawv pov thawj ntawm tuam txhab.Qhov no feem ntau sawv cev rau tus qauv tempering degree los ntawm lub neej ntawd.Vim Tuam Tshoj tus cwj pwm ntawm kev siv thiab kev teeb tsa cov cuab yeej siv, annealing + smoothing yog cov txheej txheem ib txwm siv thiab yuav tsis piav qhia tshwj xeeb.
2. Qhov xwm txheej saum npoo kuj yog qhov taw qhia tseem ceeb heev.Muaj ob qhov chaw saum npoo ntawm tus qauv no.
Nto li xwm txheej code
D-pockmarked noodles
B — glossy
Smooth thiab pitted nto yog ua tiav los ntawm rollers (smoothing rollers).Lub roughness ntawm yob nto yog theej rau lub phaj steel thaum lub sij hawm dov txheej txheem.Ib tug menyuam nrog ib tug ntxhib saum npoo yuav tsim ib tug pitted nto, thiab ib tug menyuam nrog ib tug du nto yuav tsim ib tug du nto.Smooth thiab textured nto muaj qhov sib txawv ntawm kev ua, thiab kev xaiv tsis raug tuaj yeem ua rau muaj teeb meem kev ua haujlwm.
3. Thaum kawg, peb txhais qee qhov xwm txheej ntawm cov qauv kab hauv cov ntaub ntawv lav, xws li:
JIS G 3141 2015 SPCC 2 B: 1/2 nyuaj glossy SPCC uas ua tau raws li cov kev cai ntawm 2015 version ntawm JIS cov qauv.Cov khoom no tsuas lav hardness, thiab tsis lav lwm yam khoom, tawm los, tensile zog, elongation thiab lwm yam ntsuas.
Post lub sij hawm: Dec-19-2023