Seamless steel yeeb nkab ntau lawm txoj kev
1. Dab tsi yog cov txheej txheem yooj yim rau kev tsim cov kav dej seamless?
① Kev npaj tsis muaj ② Yeeb Nkab cua sov ③ Perforation ④ Yeeb Nkab dov ⑤ Sizing thiab txo txoj kab uas hla ⑥ Tiav, tshuaj xyuas thiab ntim rau kev khaws cia.
2. Dab tsi yog qhov chaw tsim khoom rau cov kav dej kub dov seamless steel?
Nruam dov, hla dov
Yuav ua li cas cov yeeb nkab steel cais raws li lawv siv?
Cov yeeb nkab kis tau tus mob (GB / T 8163): roj thiab cov pa roj carbon dioxide, cov ntaub ntawv sawv cev yog No. 20 steel, Q345 alloy steel, thiab lwm yam.
Cov yeeb nkab qauv (GB/T 8162): Cov ntaub ntawv sawv cev muaj xws li carbon steel, No. 20, thiab No. 45 steel;alloy hlau Q345, 20Cr,
40Cr, 20CrMo, 30-35CrMo, 42CrMo, thiab lwm yam.
Tam sim no, seamless steel kav feem ntau yog siv los ua roj kav, boiler kav, tshav kub exchangers, bearing pipelines thiab ib co high-pressure thauj mus los pipelines.
Yam dab tsi cuam tshuam rau tus nqi ntawm cov kav dej steel?
Kev thauj mus los, theoretical yuag / qhov hnyav tiag tiag, ntim khoom, hnub xa khoom, kev them nqi, kev ua lag luam, kev siv thev naus laus zis, khoom tsis txaus hauv khw, cov neeg siv khoom qub / cov neeg siv khoom tshiab, cov neeg siv khoom, kev sib txuas lus, kev tiv thaiv ib puag ncig, lub teb chaws txoj cai, kev xav tau kev lag luam, Khoom siv, hom, tshuaj xyuas, zoo, tsim nyog, steel zeb txoj cai, pauv tus nqi, shipping nqe lus, thoob ntiaj teb xwm txheej