A. Txheej txheem cej luam ntawm cov txheej txheem ntws
Kub dov (extrusion seamless steel raj): round tube billet → cua sov → perforation → peb-siab cross dov, nruam dov los yog extrusion → raj tso → sizing (los yog txo) → txias → billet → straightening → hydrostatic test (los yog flaw detection) → cim → cia.
Cold-drawn (dov) seamless steel raj: round tube billet → cua sov → perforation → heading → annealing → pickling → roj txheej (tooj liab plating) → multi-pass txias txias (txias dov) → billet → tshav kub kho → straightening → hydrostatic test (Kev kuaj pom qhov tsis haum) → kos npe → khaws cia.
B. Seamless steel kav tau muab faib ua ntau hom hauv qab no vim lawv siv sib txawv:
Seamless steel raj rau kev siv cov qauv Feem ntau yog siv rau hauv cov qauv dav dav thiab cov qauv siv tshuab.Nws cov khoom sawv cev (qib): carbon steel 20, 45 steel;Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, thiab lwm yam.
GB / T8163-1999 seamless steel raj rau kev xa cov kua dej Mas siv hauv engineering thiab cov khoom loj ntawm kev thauj cov kav dej.Cov ntaub ntawv sawv cev (hom) rau 20, Q345, thiab lwm yam.
Gb3087-1999 (seamless steel hlab rau qis thiab nruab nrab siab boilers) Nws yog tsuas yog siv nyob rau hauv lub pipeline ntawm boiler muaj boiler thiab domestic boiler conveying qis thiab nruab nrab siab kua.Cov khoom sawv cev rau 10, 20 steel.
GB5310-1995 (seamless steel tubes rau high-pressure boilers) Nws yog tsuas yog siv rau kub thiab siab siab conveying dej ntim lub thawv thiab pipeline ntawm boiler ntawm lub hwj chim chaw nres tsheb thiab nuclear fais fab chaw nres tsheb.Cov khoom siv sawv cev yog 20G, 12Cr1MoVG, 15CrMoG, thiab lwm yam.
Seamless steel tubes ntawm carbon steel thiab carbon-manganese steel rau nkoj GB5312-1999 Feem ntau yog siv hauv Marine boiler thiab superheater rau CLASS I, II siab raj, thiab lwm yam. Cov khoom sawv cev rau 360, 410, 460 steel chav.
GB1479-2000 (seamless steel raj rau high-pressure fertilizer khoom) Feem ntau yog siv rau conveying kub thiab siab siab kua pipeline ntawm cov khoom siv chiv.Cov ntaub ntawv sawv cev yog 20, 16Mn, 12CrMo, 12Cr2Mo, thiab lwm yam.
GB9948-1988 (seamless steel raj rau roj av tawg) Nws yog tsuas yog siv nyob rau hauv boilers, tshav kub exchangers thiab kua conveying pipelines ntawm roj av smelters.Nws cov ntaub ntawv sawv cev yog 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb thiab lwm yam.
GB18248-2000 (seamless steel raj rau roj thooj voos kheej kheej) Feem ntau yog siv los ua txhua yam roj thiab hydraulic thooj voos kheej kheej.Nws cov ntaub ntawv sawv cev yog 37Mn, 34Mn2V, 35CrMo, thiab lwm yam.
GB / T17396-1998 (kub dov seamless steel raj rau hydraulic struts) Feem ntau yog siv nyob rau hauv zus tau tej cov thee mine hydraulic txhawb nqa thiab lub tog raj kheej, kab, thiab lwm yam hydraulic kheej kheej, kab.Nws cov ntaub ntawv sawv cev yog 20, 45, 27SiMn, thiab lwm yam.
GB3093-1986 (seamless high-pressure steel raj rau diesel xyaw) Feem ntau yog siv rau kev kub siab roj yeeb nkab ntawm diesel cav txhaj system.Nws cov yeeb nkab steel feem ntau yog cov yeeb nkab txias, nws cov khoom sawv cev yog 20A.
GB / T3639-1983 (txias rub los yog txias dov precision seamless steel raj) Feem ntau yog siv rau cov qauv siv tshuab, cov khoom siv carbon pressing, siab precision, zoo nto tiav steel yeeb nkab.Nws cov khoom sawv cev 20, 45 steel, thiab lwm yam.
GB / T3094-1986 (txias-kos seamless steel raj zoo li lub raj steel) Feem ntau yog siv los ua ntau yam qauv thiab qhov chaw, nws cov khoom yog cov khoom siv zoo carbon steel thiab cov hlau tsis tshua muaj hlau.
Seamless precision puab txoj kab uas hla steel hlab rau hydraulic thiab pneumatic thooj voos kheej kheej GB / T8713-1988 Nws yog tsuas yog siv los ua txias los yog txias dov seamless steel hlab nrog meej puab txoj kab uas hla rau hydraulic thiab pneumatic lub tog raj kheej.Nws cov khoom sawv cev yog 20, 45 steel, thiab lwm yam.
GB13296-1991 seamless stainless hlau raj rau boilers thiab tshav kub exchangers Nws yog tsuas yog siv nyob rau hauv boilers, superheaters, tshav kub exchangers, condensers thiab catalytic hlab nyob rau hauv cov tshuaj lag luam.Kub kub, siab siab thiab corrosion resistant steel hlab.Nws cov ntaub ntawv sawv cev yog 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti thiab lwm yam.
GB / T14975-1994 seamless steel hlab rau cov qauv siv Feem ntau yog siv nyob rau hauv cov qauv (tsev so, tsev so kho kom zoo nkauj) thiab chemical enterprise mechanical qauv siv nyob rau hauv cov huab cua, acid corrosion thiab muaj ib tug tej yam lub zog ntawm steel yeeb nkab.Nws cov ntaub ntawv sawv cev yog 0-3Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti thiab lwm yam.
GB / T14976-1994 (seamless stainless hlau raj rau kev thauj cov kua dej) Feem ntau yog siv rau conveying corrosive nruab nrab pipeline.Cov ntaub ntawv sawv cev yog 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti thiab lwm yam.
YB/T5035-1993 (seamless steel raj rau tsheb semi-axle tes tsho yeeb nkab) Nws yog tsuas yog siv rau zus tau tej cov zoo carbon structural steel thiab alloy structural steel kub dov seamless steel raj rau lub axles tes tsho ntawm lub tsheb thiab lub qag tsev ntawm tsav qag.Nws cov ntaub ntawv sawv cev yog 45, 45Mn2, 40Cr, 20CrNi3A thiab lwm yam.
Post lub sij hawm: Sep-16-2021