Kauv Welded Yeeb Nkab Rau Cov Kav Dej Roj
Cov Kav Dej Sib Txuasyog tsim los ntawm kev dov cov hlau carbon tsawg lossis cov hlau tsis sib xyaw ua ke rau hauv cov yeeb nkab ntawm lub kaum sab xis tshwj xeeb. Cov yeeb nkab no ces raug vuam ua ke los ua cov yeeb nkab hlau. Ntawm Cangzhou Spiral Steel Pipes Group Co., Ltd. peb muaj kev txawj ntse hauv kev tsim cov yeeb nkab vuam kom ntseeg tau tias cov qauv siab tshaj plaws ntawm qhov zoo thiab ruaj khov.
| Tus Qauv | Qib hlau | Cov tshuaj lom neeg muaj pes tsawg leeg | Cov khoom siv tensile | Kev Ntsuas Kev Cuam Tshuam Charpy thiab Kev Ntsuas Qhov Hnyav Ntawm Qhov Tso Tawm | ||||||||||||||
| C | Si | Mn | P | S | V | Nb | Ti | CEV4)(%) | Rt0.5 Mpa Tawm zog | Lub zog Tensile Rm Mpa | Rt0.5 / Rm | (L0 = 5.65 √ S0) Kev Ntev A% | ||||||
| siab tshaj plaws | siab tshaj plaws | siab tshaj plaws | siab tshaj plaws | siab tshaj plaws | siab tshaj plaws | siab tshaj plaws | siab tshaj plaws | Lwm yam | siab tshaj plaws | feeb | siab tshaj plaws | feeb | siab tshaj plaws | siab tshaj plaws | feeb | |||
| L245MB | 0.22 | 0.45 | 1.2 | 0.025 | 0.15 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 245 | 450 | 415 | 760 | 0.93 | 22 | Kev ntsuam xyuas qhov cuam tshuam ntawm Charpy: Lub zog nqus dej ntawm lub cev yeeb nkab thiab cov xov hlau yuav tsum tau kuaj raws li qhov xav tau hauv tus qauv qub. Yog xav paub ntxiv, saib tus qauv qub. Kev ntsuam xyuas qhov hnyav poob: Thaj chaw txiav xaiv tau | |
| GB/T9711-2011 (PSL2) | L290MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 290 | 495 | 415 | 21 | |||
| L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
| L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
| L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
| L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
| L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
| L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
| L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Kev sib tham | 555 | 705 | 625 | 825 | 0.95 | 18 | |||||
| Lus Cim: | ||||||||||||||||||
| 1) 0.015 ≤ Altot < 0.060;N ≤ 0.012; AI—N ≥ 2—1;Cu ≤ 0.25; Ni ≤ 0.30; Cr ≤ 0.30; Mo ≤ 0.10 | ||||||||||||||||||
| 2) V + Nb + Ti ≤ 0.015% | ||||||||||||||||||
| 3) Rau txhua qib hlau, Mo yuav ≤ 0.35%, raws li daim ntawv cog lus. | ||||||||||||||||||
| Mn Cr+Mo+V Cu+Ni4) CEV=C+ 6+5+5 | ||||||||||||||||||
Peb Cov Kav Dej Sib Txuas Zoo Tshaj Plaws hauv lawv lub peev xwm los tiv taus qhov siab thiab qhov kub thiab txias hloov pauv ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau kev siv roj. Lawv ua kom pom tseeb tias tiv taus xeb. Tau tsim los ua kom tau raws li qhov xav tau ntawm kev lag luam roj. Tsim los ntawm kev siv thev naus laus zis niaj hnub thiab ua raws li cov qauv kev lag luam peb cov kav dej muab kev daws teeb meem, rau txhua yam koj xav tau ntawm cov kav dej roj.
Cangzhou Spiral Steel Pipes Group Co., Ltd. Muaj kev txaus siab rau peb txoj kev mob siab rau kev xa cov khoom zoo thiab txhim khu kev qha. Nrog lub peev xwm tsim khoom ntawm 400,000 tons thiab tag nrho tus nqi ntawm 1.8 billion Yuan, peb tau tsim peb tus kheej ua tus neeg muag khoom ntseeg siab, hauv kev lag luam yeeb nkab hlau. Peb pab neeg ua haujlwm tshaj lij xyuas kom meej tias txhua lub yeeb nkab tsim tawm raws li cov qauv kev lag luam kom ntseeg tau tias cov neeg siv khoom txaus siab thiab kev thaj yeeb nyab xeeb.
Peb nkag siab tag nrho txog qhov tseem ceeb ntawm kev thauj mus los roj kom ruaj ntseg, yog vim li cas peb thiaj li siv zog txhim kho peb cov txheej txheem tsim khoom thiab cov thev naus laus zis kom muab cov khoom zoo tshaj plaws rau peb cov neeg siv khoom. Peb cov Kav Dej Sib Nqus Welded raug rau kev tswj xyuas zoo. Ua raws li cov txheej txheem kuaj xyuas nruj kom lav qhov ua tau zoo thiab kev ntseeg siab.
Seb koj puas xav taucov kav rojRau cov chaw faib roj lossis cov lag luam kev lag luam koj tuaj yeem cia siab rau Cangzhou Spiral Steel Pipes Group Co., Ltd. Rau cov kav dej zoo tshaj plaws. Tiv tauj peb hnub no los tham txog koj cov kev xav tau thiab cia peb pab neeg paub txog kev pab koj nrhiav kev daws teeb meem, rau txhua yam koj xav tau kev thauj roj.







