Seamless raj rau boiler yog ib hom boiler raj, uas belongs rau qeb ntawm seamless steel raj. Txoj kev tsim khoom yog tib yam li seamless raj, tab sis muaj cov kev cai nruj ntawm cov hlau siv hauv kev tsim cov raj steel. Boiler nrog seamless raj feem ntau yog siv nyob rau hauv qhov kub thiab txias siab, cov kav dej kub flue roj thiab dej vapor nyob rau hauv qhov kev txiav txim, yuav tshwm sim oxidation thiab corrosion. Cov raj hlau yuav tsum muaj lub zog ruaj khov, siab oxidation corrosion kuj, thiab cov ntaub so ntswg zoo. Boiler nrog seamless raj yog tsuas yog siv los tsim kev kub siab thiab ultra-siab siab boiler superheater raj, reheater raj, roj qhia boiler nrog seamless raj, lub ntsiab chav boiler, thiab lwm yam.

Tsawg thiab nruab nrab siab boiler rajGB3087-1999, boiler seamless rajGB5310-1999yog siv los tsim ntau yam qauv ntawm lub siab kub boiler superheated chav yeeb nkab, boiling dej yeeb nkab thiab locomotive boiler superheated chav yeeb nkab, pa luam yeeb yeeb nkab, me me yeeb nkab thiab arch cib yeeb nkab yeeb nkab ntawm high quality carbon structural steel kub dov thiab txias drawn (dov) seamless steel yeeb nkab. Seamless steel raj rau cov qauv (GB/T8162-1999) yog seamless steel raj rau cov qauv dav dav thiab cov qauv siv tshuab. Specifications thiab tsos zoo:GB5310-95"Seamless Steel raj rau Kev kub siab boiler" kub dov yeeb nkab txoj kab uas hla 22 ~ 530mm, phab ntsa thickness 20 ~ 70mm. Sab nraud txoj kab uas hla ntawm txias drawn (txias dov) raj yog 10 ~ 108mm, thiab phab ntsa thickness yog 2.0 ~ 13.0mm. Tshwj xeeb zoo li tus seamless steel yeeb nkab yog ib lub ntsiab lus dav dav rau seamless steel yeeb nkab ntawm lwm cov duab hla ntu tshwj tsis yog cov yeeb nkab puag ncig. Raws li cov duab sib txawv thiab qhov loj ntawm cov yeeb nkab steel, nws tuaj yeem muab faib ua cov phab ntsa tuab tshwj xeeb zoo li seamless steel yeeb nkab (code rau D), tsis sib xws phab ntsa tuab tshwj xeeb zoo li seamless steel yeeb nkab (code rau BD), sib txawv txoj kab uas hla tshwj xeeb seamless steel yeeb nkab (code rau BJ). Tshwj xeeb zoo li tus seamless steel raj yog dav siv nyob rau hauv ntau yam structural qhov chaw, cov cuab yeej thiab mechanical qhov chaw. Piv nrog rau cov raj puag ncig, lub raj tshwj xeeb zoo li feem ntau muaj lub sijhawm loj ntawm inertia thiab seem modulus, thiab muaj peev xwm ntau dua los tiv thaiv kev khoov thiab torsion, uas tuaj yeem txo qhov hnyav ntawm cov qauv thiab txuag hlau. 4. Chemical composition test (1)GB3087-82"seamless steel raj rau qis thiab nruab nrab siab boiler" cov kev cai. Txoj kev kuaj tshuaj muaj pes tsawg leeg raws li GB222-84 thiab GB223 "Steel thiab Alloy Chemical Analysis Method" qhov cuam tshuam. (2)GB5310-95"Seamless Steel Tube rau Kev Kub Siab Boiler" cov kev cai. Txoj kev xeem ntawm cov tshuaj muaj pes tsawg leeg yog ua raws li qhov cuam tshuam ntawm GB222-84, Tshuaj Ntsuam Xyuas Txoj Cai ntawm Hlau thiab Alloy, thiab GB223 Tshuaj Ntsuam Xyuas Txoj Cai ntawm Hlau thiab Alloy. (3) Kev tshuaj xyuas cov tshuaj muaj pes tsawg leeg ntawm cov boiler steel yeeb nkab yuav tsum tau ua raws li cov qauv tsim nyog tau teev tseg hauv daim ntawv cog lus. 5 boiler nrog seamless raj steel (1) zoo carbon structural steel hlau yog 20G, 20MnG, 25MnG.(2) alloy structural steel hlau 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG12CrMoVG, 12CrMoVG, S. (3) xeb hluav taws kub resistant steel feem ntau siv 1Cr18Ni9, 1Cr18Ni11Nb boiler raj ntxiv kom ntseeg tau cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab, ua hydraulic xeem hauv paus, ua flaring, flattening xeem. Cov raj hlau xa tawm hauv lub xeev kho cua sov. Tsis tas li ntawd, lub microstructure, grain loj thiab decarbonization txheej ntawm cov tiav steel yeeb nkab kuj yuav tsum tau.

6. Kev kuaj lub cev (1) GB3087-82 "Seamless steel raj rau qis thiab nruab nrab siab boilerKev ntsuas tensile raws li GB / T228-87, hydraulic xeem raws li GB / T241-90, squashing xeem raws li GB / T246-97, flaring xeem raws li GB / T242-97, txias dabtsi yog khoov xeem raws li GB24497 (2) GB5310-95 "Seamless Steel Tube rau Kev Kub Siab Boiler"Cov kev cai. Tensile test, hydrostatic test thiab flattening test yog tib yam li GB3087-82; Impact test raws li GB229-94, flaring test raws li GB/T242-97, grain size test raws li YB/T5148-93; Raws li GB13298-91 rau GB13298-91 rau GB 2298-91 kuaj cov ntaub so ntswg microscopic, raws li GB13298-91 GB224-87 rau kev kuaj ultrasonic GB / T5777-96.(3) Kev tshuaj xyuas lub cev thiab kev ntsuas ntawm cov raj boiler txawv teb yuav tsum tau ua raws li cov qauv uas tau teev tseg hauv daim ntawv cog lus.

7. Lub ntsiab ntshuam thiab xa tawm qhov xwm txheej

(1) kev kub siab boiler seamless raj loj importing lub teb chaws yog Nyiv, lub teb chaws Yelemees. Feem ntau import cov specifications ntawm 15914.2 hli; 2734.0 hli; 219.110.0 hli; 41975mm; 406.460 hli, thiab lwm yam. Yam tsawg kawg nkaus specification yog 31.84.5 hli, ntev yog feem ntau 5 ~ 8 m.(2) nyob rau hauv cov ntaub ntawv ntawm imported thov, lub teb chaws Yelemees mannesmann seamless boiler raj, yeeb mills imported ST45 los ntawm ultrasonic kev soj ntsuam ntawm kev suav pej xeem, pom tias ib tug me me ntawm internal defects ntawm steel yeeb nkab ntau tshaj li lub Hoobkas steel cov qauv. qib yog 34 crmo4 thiab 12 crmov, thiab lwm yam. Qhov no steel tube kub kub kev ua tau zoo, feem ntau yog siv rau kub boiler steel yeeb nkab.(4) alloy tube imported los ntawm Nyiv ntau, specifications mm5 426.012 ~ 8 m; 152.48.0 hli 12m; 89.110.0 mm6m; 101.610.0 hli 12m; 114.38.0 hli 6m; 127.08.0 mm9m JISG3458 kev ua raws li cov qauv kev lag luam hauv Nyij Pooj, xws li qib steel rau STPA25, cov yeeb nkab steel no siv rau kev sib txuam nrog kub kub alloy tube.High siab boiler seamless raj ntshuam thiab xa tawm, (1) kub siab boiler seamless raj loj importing lub teb chaws yog Nyiv, lub teb chaws Yelemees. Feem ntau import cov specifications ntawm 15914.2 hli; 2734.0 hli; 219.110.0 hli; 41975mm; 406.460 hli yog qhov tsawg tshaj plaws specifications xws li 31.84.5 hli, ntev yog feem ntau 5 ~ 8 m.(2) nyob rau hauv cov ntaub ntawv ntawm cov ntaub ntawv thov, lub teb chaws Yelemees mannesmann seamless boiler raj, yeeb nkab zeb imported ST45 los ntawm ultrasonic kev soj ntsuam ntawm kev suav pej xeem, pom tias ib tug me me ntawm internal defects ntawm steel yeeb nkab ntau tshaj li lub Hoobkas steel steel cov qauv. qib yog 34 crmo4 thiab 12 crmov, thiab lwm yam. Qhov no steel tube kub kub kev ua tau zoo, feem ntau yog siv rau kub boiler steel yeeb nkab.(4) alloy tube imported los ntawm Nyiv ntau, specifications mm5 426.012 ~ 8 m; 152.48.0 hli 12m; 89.110.0 mm6m; 101.610.0 hli 12m; 114.38.0 hli 6m; 127.08.0 mm9m JISG3458 kev ua raws li cov qauv kev lag luam hauv Nyij Pooj, xws li qib steel rau STPA25. Hom steel yeeb nkab no siv rau kev sib txuam nrog kub kub alloy raj.

Boiler seamless raj txoj kev tsim cov boiler nrog ib hom seamless raj. Txoj kev tsim khoom thiab seamless raj yog tib yam, tab sis muaj kev thov nruj rau kev tsim cov hlau siv hauv cov yeeb nkab steel. Raws li kev siv qhov kub thiab txias tuaj yeem muab faib ua ob lub boiler tube thiab siab siab boiler raj.1, ib qho kev piav qhia ntawm (1) manufacturing method: (1) general boiler seamless tube kub nyob rau hauv 450 ℃, lub domestic yeeb nkab mas siv 10, 20 carbon steel kub dov los yog txias drawn tube tsim. flue roj thiab dej vapor, oxidation thiab corrosion yuav tshwm sim. Kev xav tau ntawm cov yeeb nkab steel nrog lub zog siab tawg, siab oxidation corrosion kuj, thiab muaj kev ruaj ntseg zoo. ultrahigh-pressure boiler superheater raj, reheater raj, cua tshuab lub ntsiab chav yeeb nkab, thiab lwm yam.

Kev siv boiler seamless raj

(1) dav dav boiler seamless raj yog tsuas yog siv los ua dej phab ntsa raj, dej yeeb nkab, superheated chav tube, locomotive boiler superheated chav yeeb nkab, loj thiab me yeeb nkab thiab raj arch cib, thiab lwm yam. GB3087-82 qis nruab nrab siab boiler seamless steel hlab thiab GB5310-95 "siab siab boiler seamless steel raj" kev cai. Cov tsos mob zoo: steel raj sab hauv thiab sab nrauv tsis pub muaj qhov tawg, folding, folding, caws pliav, delamination thiab plaub hau. Cov teeb meem no yuav tsum raug tshem tawm tag nrho. Tshem tawm qhov tsis zoo sib txawv, qhov tob yuav tsum tsis pub tshaj lub nominal phab ntsa thickness kev tu nyob rau hauv lub tiag phab ntsa thickness yuav tsum tsis txhob yuav tsawg tshaj li qhov tsawg kawg nkaus tus nqi ntawm phab ntsa thickness yog tso cai.Weight xam txoj kev boiler seamless raj txoj kev xav: - phab ntsa thickness (inch) * 0.02466 * phab ntsa thickness.