1. Q: Dab tsi ua rau cov yeeb nkab haum rau "Sour Service"?
A:Cov kav dej qaub muaj kev tswj xyuas nruj, lub zog, thiab chemistry (tsawg leej faj, tswj phosphorus). Lawv feem ntau muab nkag rau hauv qhov qub lossis quenched & tempered mob kom ua tiav ib homogeneous, zoo -grained microstructure uas muaj zog heev rau SSC.
2. Q: Hauv kev siv lub tog raj kheej hydraulic, vim li cas qhov chaw tiav thiab honing muaj peev xwm ntawm lub raj tseem ceeb?
A:Lub raj seamless nrog ib qho zoo ib yam, zoo - cov qauv nplej (xws li CDS 1018/1026) tuaj yeem ua tiav rau qhov zoo nkauj sab hauv. Qhov no yog qhov tseem ceeb rau kev tsim kom muaj kev sib khi zoo nrog lub nplhaib piston, txo kev sib txhuam, thiab ua kom lub neej ntev thiab kev ua haujlwm ntawm lub tog raj kheej hydraulic.
3. Q: Dab tsi yog "Galvanizing" thiab seamless kav yuav galvanized?
A:Galvanizing yog txheej txheem ntawm kev siv cov zinc txheej tiv thaiv rau cov hlau kom tsis txhob xeb. Yog lawm, seamless kav (xws li ASTM A53) tuaj yeem kub -dip galvanized. Lub seamless xwm ua kom lub txheej yog uniform yam tsis muaj qhov tsis zoo weld seam.
4. Q: Thaum twg yog qhov kev ntxhov siab yuav tsum tau ua tom qab khoov lossis ua cov kav dej seamless?
A:Kev daws kev ntxhov siab yog pom zoo tom qab ua haujlwm txias txias (xws li nruj- vojvoog dabtsi yog khoov) lossis siv tshuab hnyav. Nws suav nrog kev ua kom sov cov hlau mus rau qhov kub siab tshaj - qhov kub thiab txias los txo cov kev ntxhov siab sab hauv, tiv thaiv kev cuam tshuam yav tom ntej los yog tawg hauv kev pabcuam, thiab rov ua kom qhov chaw ruaj khov.
5. Q: Dab tsi yog qhov kev txiav txim siab tseem ceeb thaum vuam ASTM A333 Qib 6 rau kev pabcuam kub qis?
A:Qib no yog npib tsib xee- alloy steel tsim los rau kev sib zog ntawm qhov kub thiab txias li -50℃F (-45℃). Cov kev txiav txim siab tseem ceeb suav nrog: siv qhov sib piv qis-kub electrodes, tswj nruj preheat thiab interpass kub tswj, thiab siv cov txheej txheem vuam uas tsis muaj cua sov los khaws cov khoom cuam tshuam ntawm Heat-Afected Zone (HAZ).
