TIAB SA 370yog ib qib ntawm Japanese tus qauv JIS G 3456 rau carbon steel kav, uas yog siv rau cov kav dej siab nyob rau hauv ib puag ncig uas kub tshaj 350 ° C.Nws tuaj yeem yog seamless lossis welded kav siv cov txheej txheem hluav taws xob tiv thaiv vuam (ERW).Cov khoom siv hluav taws xob ntawm STPT 370 cov khoom siv yog qhov tsawg kawg nkaus tensile lub zog ntawm 370 MPa thiab qhov tsawg kawg nkaus yield zog ntawm 215 MPa.
Yog tias koj tab tom nrhiav rau cov chaw tsim khoom thiab cov chaw muag khoom ntawm cov kav hlau uas ua tau raws li JIS G 3456 tus qauv, ces peb yog tus khub koj tab tom nrhiav.Tiv tauj peb hnub no thiab peb yuav zoo siab los pab koj!
Haum rau sab nraud diameters 10.5 mm - 660.4 mm (6A - 650A) (1/8B - 26B).
A thiab B yog ob txoj hauv kev los nthuav qhia lub npe kab hauv cov qauv Japanese.Tshwj xeeb, A sib raug rau DN, thaum B sib raug rau NPS.
JIS G 3456 STPT 370 tuaj yeem tsim tau siv lubseamlessmanufacturing process los yoghluav taws xob kuj welding(ERW) txheej txheem.
Cov txheej txheem tsim khoom kuj sib xws rau cov txheej txheem sib txawv los tiv thaiv kev siv sib txawv.
| Lub cim ntawm qib | Lub cim ntawm kev tsim khoom | |
| Kev tsim cov yeeb nkab | Txoj kev ua tiav | |
| JIS G 3456 STPT370 | Seamless: S | Kub tiav: H Txias tiav: C |
| Hluav taws xob kuj welded: E Lub taub hau welded: B | Kub tiav: H Txias tiav: C Raws li hluav taws xob kuj welded: G | |
STPT 370 yuav tsum tau kho cua sov.
1. Kub-tiav seamless steel yeeb nkab: Raws li manufactured Low-temperature annealing los yog normalizing tej zaum yuav siv tau raws li xav tau;
2. Cold-tiav seamless steel yeeb nkab: Tsawg-kub annealing lossis normalizing;
3. Kub-tiav hluav taws xob tiv thaiv welded steel yeeb nkab: Raws li tsim los ntawm Low-temperature annealing lossis normalizing tuaj yeem siv raws li qhov xav tau;
4. Txias-tiav hluav taws xob tiv thaiv welded thiab Raws li hluav taws xob kuj welded steel yeeb nkab: Tsawg-kub annealing lossis normalizing.
| Lub cim ntawm qib | C | Si | Mn | P | S |
| JIS G 3456 STPT370 | 0.25% max | 0.10 - 0.35% | 0.30 - 0.90% | 0.035% max | 0.035% max |
Yog tias tsim nyog, cov ntsiab lus ntxiv tuaj yeem ntxiv.
Tensile Strength, Yield Point lossis Pov Thawj Kev Nyuaj Siab, thiab Elongation
Flattening Property
Haum rau cov kav dej uas muaj ib txoj kab uas hla sab nraud ntau dua 60.5 hli.
Cov qauv yog muab tso rau nruab nrab ntawm ob lub platform thiab flattened.Thaum qhov kev ncua deb ntawm ob daim hlau mus txogH, tsis muaj kab nrib pleb ntawm qhov chaw ntawm cov yeeb nkab steel.
H = 1.08t/(0.08+ t/D)
н: nrug ntawm platens (mm);
t: phab ntsa thickness ntawm cov yeeb nkab (mm);
D: sab nraud txoj kab uas hla ntawm cov yeeb nkab (mm);
Kho tau
Haum rau cov kav hlau steel nrog ib txoj kab uas hla ntawm 60.5 hli lossis tsawg dua.
Thaum cov qauv yog khoov ib ncig ntawm lub mandrel mus rau ib lub vojvoog sab hauv ntawm 6 npaug ntawm txoj kab uas hla ntawm cov yeeb nkab, cov qauv raug tshuaj xyuas thiab tsis pom muaj kab nrib pleb.
| Nominal phab ntsa thickness | Daim ntawv teev npe: Sch | |||||||||
| 10 | 20 | 30 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | |
| Tsawg kawg hydraulic ntsuas siab, Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 ib | 12 | 15 | 18 | 20 | 20 |
Thaum sab nraud txoj kab uas hla thiab phab ntsa tuab ntawm cov yeeb nkab steel tsis yog qhov loj me, cov txheej txheem hauv qab no tuaj yeem siv los txiav txim siab qhov tsim nyog qib:
Ua ntej, xaiv cov txheej txheem teev npe uas nyob ze tshaj qhov tsis yog tus qauv loj;thib ob, txiav txim siab qib specification los ntawm kev xam tus nqi P.
Nyob rau hauv ob txoj kev, tus nqi me me yuav tsum raug xaiv raws li qib kawg specification.
P = 2st/D
P: ntsuas siab (MPa);
t: phab ntsa thickness ntawm cov yeeb nkab (mm);
D: sab nraud txoj kab uas hla ntawm cov yeeb nkab (mm);
s: 60% ntawm tus nqi tsawg kawg nkaus ntawm qhov taw tes tawm los yog pov thawj kev ntxhov siab;
Cov kev sim uas tsis yog kev puas tsuaj xws li kuaj ultrasonic (UT) thiab eddy tam sim no kuaj (ET).
Thaum ua tiav kev tshuaj xyuas ultrasonic, kev siv yuav tsum tau ua rau JIS G 0582, thiab thaum qhov kev tshuaj ntsuam xyuas yog sib npaug los yog tshaj li tus qauv siv rau UD chav kawm, nws raug suav tias yog qhov ua tsis tiav.
Thaum ua qhov kev tshuaj ntsuam xyuas tam sim no, kev siv yuav tsum tau ua rau JIS G 0583. Thaum qhov kev tshuaj ntsuam xyuas yog sib npaug los yog tshaj cov qauv siv rau chav kawm EY, nws raug suav tias tsis tsim nyog.
Tus qauv qhov ntev thiab phab ntsa thicknesses nyob rau hauv thaj tsam ntawm 10.5 hli mus rau 660.4 hli yog teev nyob rau hauv JIS G 3456, uas yog lubsteel yeeb nkab luj rooj thiab cov sij hawm sib thooj No.
Teem caij 10,Teem caij 20,Teem caij 30,Teem caij 40,Teem caij 60,Teem caij 80,Teem caij 100,Teem caij 120,Teem caij 140,Teem caij 160.
Txij li thaum nws tsim nyob rau hauv 2014,Botop Steeltau dhau los ua tus xa khoom ntawm carbon steel yeeb nkab nyob rau sab qaum teb Tuam Tshoj, paub txog kev pabcuam zoo, cov khoom zoo, thiab cov kev daws teeb meem zoo.
Lub tuam txhab muaj ntau yam carbon steel kav thiab lwm yam khoom, xws li seamless, ERW, LSAW, thiab SSAW steel yeeb nkab, raws li zoo raws li ib tug tag nrho lineup ntawm cov yeeb nkab fittings thiab flanges.Nws cov khoom tshwj xeeb kuj suav nrog cov qib high-qib alloys thiab austenitic stainless hlau, tsim kom tau raws li qhov xav tau ntawm ntau yam kev siv kav dej.
Thov koj xav tiv tauj peb thiab peb yuav zoo siab los teb koj cov lus nug.
