Tuam Tshoj Zoo Kub Rolled Flat Bar Steel
| Qib | Qib | Tshuaj muaj pes tsawg leeg% | ||||
| C | Mn | Si | S | P | ||
| q235 ua | A/B | 0.12-0.22 Nws | 0.30-0.65 Nws | ≤ 0.35 | ≤ 0.045 | ≤ 0.045 |
| Qib | C% (t≤16mm) | Mn% | P% | S% | N | Cu | CEV② (t≤40mm) |
| S235 JR | ≤ 0.17 | ≤ 1.40 | ≤ 0.035 | ≤ 0.035 | ≤ 0.012 | ≤ 0.55 | ≤ 0.35 |
| S275 JR | ≤ 0.21 | ≤1.50 | ≤ 0.035 | ≤ 0.035 | ≤ 0.012 | ≤ 0.55 | ≤ 0.40 |
| Qib | C | Mn | P | S |
| SIB 400 | --- | ---- | ≤ 0.050 | ≤ 0.050 |
Cov khoom tshwj xeeb specifications. Lub thickness yog 8-50mm, dav 150-625mm, ntev 5-15m, thiab cov khoom specifications yog nyob ze spaced kom tau raws li cov kev xav tau ntawm cov neeg siv, thiab yuav siv tau es tsis txhob ntawm nruab nrab phaj, tsis txiav, thiab yuav ncaj qha welded.
Qhov saum npoo ntawm cov khoom yog ci thiab huv si. Cov txheej txheem ntawm kev kub siab dej descaling yog siv rau zaum ob.
Ob sab yog ntsug thiab cov ces kaum yog qhov tseeb. Qhov thib ob dhau ntawm ntsug dov nyob rau hauv zoo dov ua kom zoo verticality ntawm ob sab, meej fab thiab zoo nto zoo ntawm ob sab.
Cov nplai ntawm cov khoom yog qhov tseeb, qhov sib txawv ntawm peb lub ntsiab lus thiab tib theem sib txawv yog zoo dua li tus qauv ntawm cov phaj steel; cov khoom yog tiaj thiab ncaj, thiab cov phaj zoo zoo. Precision rolling adopts nruam dov txheej txheem, tsis siv neeg nyob lub tes tsho tsis siv neeg tswj kom tsis muaj steel stacking thiab tsis muaj steel rub, siab qhov tseeb ntawm cov khoom, kam rau ua ntau yam, peb taw tes sib txawv, tib qib sib txawv, mob khoov thiab lwm yam tsis zoo tshaj qhov nruab nrab. phaj, thiab phaj ncaj yog zoo. Txias shear shear, siab raug ntawm qhov ntev sizing.
Cov khoom siv siv lub teb chaws tus qauv, tib yam li steel phaj. Cov qauv kev ua tau zoo thiab cov qauv tsim tau tsim thiab ua raws li YB / T4212-2010 tus qauv (Q345B / Q235B xa mus rau GB / T1591-94, raws li.
1. Kub-kuav los tiag ca steel yog ib tug ntev, muaj peev xwm dov hlau nrog ib tug duab plaub hla-section rau kev siv. Nws specifications qhia nyob rau hauv millimeters thickness * dav. Pav ca hlau tuaj yeem ua tiav cov hlau, siv rau cov khoom siv, cov ntaiv, txuas hniav thiab laj kab, thiab lwm yam. Cov hlau tiaj tiaj kuj tuaj yeem siv los ua cov pob zeb thiab cov slabs rau welded steel thiab laminated ntawv. (Cov khoom siv: Q215, Q235), kev siv tus qauv: GB704-1988 es tsis txhob GB704-83, tus qauv no siv rau lub thickness ntawm 3 ~ 60mm, dav ntawm 10 ~ 200mm, duab plaub cross-section ntawm general-purpose kub dov ca steel . Kev xa khoom raws li txoj cai: Flat steel yog xa hauv cov kab ncaj nraim. Kev Ntsuas: Cov hlau tiaj tus ntev ntev thiab cov txiv neej ntev yog xa los ntawm qhov hnyav theoretical.
2. forged ca steel yog forged ntev steel phaj nrog ib tug duab plaub hla-section. Forging tuaj yeem tsis tsuas yog tau txais cov duab thiab qhov loj ntawm forgings, tab sis kuj tuaj yeem txhim kho lub koom haum cam khwb cia hlau, txhim kho qhov ntom ntawm cov hlau; tuaj yeem hloov pauv kev faib tawm ntawm lub koom haum fiber ntau, tshem tawm anisotropy, txhim kho cov khoom siv kho tshuab ntawm cov hlau, kom lub zog thiab tawv tawv ntawm cov hlau zoo tuaj; thiab tuaj yeem ua tiav plasticity yog qis dua hauv cov hlau siab thiab siab alloy steel. Forged tiaj tus hlau yog tsuas yog high-zoo alloy steel, feem ntau yog siv rau springs, cov cuab yeej thiab cov khoom tseem ceeb. Cov lus qhia ntawm forged ca steel yog qhia nyob rau hauv mm ntawm thickness * dav, thiab cov specification yog 20mm * 40mm ~ 160mm * 300mm. Tus qauv ua tiav: GB / T16761-1
Tshooj hlau yog ib qho ntawm plaub hom hlau loj (phaj, raj, hom, hlau). Raws li cov duab ntawm seem, cov seem hlau tau muab faib ua cov seem steel thiab cov seem steel (section steel). Lub qub yog hais txog square steel, round steel, ca steel, kaum steel, hexagonal steel, thiab lwm yam .; tom kawg yog hais txog I-beam, channel steel, steel rail, qhov rai ncej steel, dabtsi yog khoov steel, thiab lwm yam.
Square steel - square seem steel, kub dov thiab txias dov; kub dov square steel sab ntev 5-250mm; txias-draw square steel sab ntev 3-100mm.
Round steel - round seem ntawm steel, muab faib ua kub dov, forged thiab txias-draw peb, kub dov puag ncig steel txoj kab uas hla 5-250mm, ntawm uas 5-9mm feem ntau yog siv raws li raw cov ntaub ntawv rau kos hlau hlau, hu ua hlau qws. ; raws li nyob rau hauv lub phaj mov kuj hu ua kub-dov coil. Forged round steel ncaj yog thicker, siv raws li ib tug ncej billet. Txias-draw puag ncig steel txoj kab uas hla 3-100mm, siab qhov tseeb.
Lub kaum sab xis steel - muab faib ua ob hom sib npaug thiab tsis sib npaug ntawm lub kaum sab xis. Lub specification ntawm lub kaum sab xis steel yog qhia los ntawm qhov loj ntawm sab ntev thiab sab thickness. Feem ntau cov specifications ntawm lub kaum sab xis steel tsim yog No. 2-20, piv txwv li tus naj npawb ntawm centimeters ntawm sab ntev. Xws li No. 5 equilateral angle steel uas hais txog sab ntev ntawm 5cm (50mm) lub kaum sab xis steel. Tib tus naj npawb ntawm cov ces kaum feem ntau muaj 2-7 txawv sab thicknesses.
Pav ca steel hnyav xam txoj kev
Pav ca hlau: hnyav ib 'meter' = 0.00785 * thickness * sab dav
