Kev kub siab seamless raj boiler pipeline roj thiab roj yeeb nkab
Kev kub siab seamless yeeb nkab yeeb nkab yas, lub siab boiler tube yog hom boiler tub, belongs rau pawg ntawm seamless steel raj.Txoj kev tsim khoom yog tib yam li seamless yeeb, tab sis muaj cov cai nruj ntawm hom steel siv los tsim cov hlau yeeb.Kev kub siab butter ntawm feem ntau siv rau kev siv hluav taws xob kub thiab cov pa siab ntau, yeeb nkab, cov yeeb nkab loj thiab lwm yam.
Tsawg thiab nruab nrab siab boiler raj GB3087-2008 thiab koov clok yeeb nkab hluav taws xob cov roj teeb zoo carbon txheej hlau kub dov thiab txias kos (dov) seamless steel raj.Seamless steel yeeb nkab rau qauv (GB / T8162-2008) yog siv rau cov qauv dav dav thiab cov qauv siv tshuab ntawm Seamless steel yeeb nkab.
Cov lus qhia tshwj xeeb thiab cov tsos zoo: GB5310-2008 "Seamless steel raj rau siab siab boiler" kub yaj yeeb nkab diam 22 ~ 50mm.Cold drawn (txias dov) raj txoj kab uas hla 10 ~ 108mm, phab ntsa thickness 2.0 ~ 13.0mm.
Cov yeeb nkab tshwj xeeb uas yog cov yeeb nkab sib txawv yog ib lo lus dav dav rau seamless steel yeeb nkab nrog lwm cov ntoo khaub ncaws nyias nyias.Raws li cov duab sib txawv thiab qhov loj me ntawm cov yeeb nkab steel xaim tshwj xeeb (code d) puab cov leeg ua yeeb nkab (code BJ).Tshwj xeeb tus qauv sib tw ntawm cov txheej txheem seamless uas tau siv dav hauv ntau yam txheej txheem, cov cuab yeej thiab Machinery qhov chaw.Piv nrog rau lub raj xaav puag ncig, cov raj yas feem ntau muaj qhov loj dua ntawm inertia thiab torsion loj dua, muaj ntau heev txo qhov hnyav ntawm cov qauv, txuag cov hlau.
Kev kub siab seamless yeeb nkab, tshuaj lom neeg
(1) GB3087-2008 "Seamless Steel Yeeb Nkab Rau Tsawg thiab Nruab Nrab Lub Siab Boiler" Cov Cai.Cov tshuaj lom neeg cov tshuaj lom neeg cov qauv ntsuas raws li GB222-84 thiab GB223 "cov hau kev kev tsom tshuaj ntawm cov hlau thiab alloy" feem ntau.
(2) GB5310-2008 "Seamless steel raj rau siab siab boiler" kev cai.Cov tshuaj lom neeg cov tshuaj lom neeg cov qauv ntsuas raws li GB222-84 thiab "txoj kev rau kev tsom tshuaj rau hlau thiab hlau thiab alloy" rau kev tsom xam tshuaj ntawm hlau thiab hlau thiab alloy ".
(3) Kev Tshuaj Nrog Kev Tshuaj Xyuas Tshuaj ntawm cov yeeb nkab Boiler Cov Yeeb Nkab Yuav tsum tau nqa tawm raws li cov qauv kev cuam tshuam hauv daim ntawv cog lus.
Tshuaj lom neeg sib xyaw ua ke siab seamless yeeb nkab yeeb nkab, cov qib txhab
(1) Zoo carbon cov qauv hlau qauv hlau 20G, 20mng, 25mng.
(2) Alloy qauv hlau 15mog, 20mog, 12crmog, 12crrmog, 12crmetg, 12cr3movsitib, thiab lwm yam.
(3) xeb cov kub resistant steel resistant steel Resistant steel nquag siv 1cr18niCov leeg hlau raug xa tawm hauv kev kho cua sov.
Tsis tas li ntawd, microstructure, lis loj me thiab decarburnishment txheej ntawm cov txheej txheem txheej txheem steel tiav kuj yuav tsum tau ua.
Kev kub siab seamless yeeb nkab yeeb yaj kiab, cov khoom siv lub cev ntawm
(1) GB3087-82 "Seamless tus hlau raj rau cov khoom nruab nrab thiab nruab nrab nruab nrab.Tensile xeem raws li GB / T228-87, kev kuaj mob hydraulic raws li GB / T241-90, Flaring kuaj raws li GB / T242-97, txias dabtsi yog khoov kev xeem raws li GB244-97.
(2) GB5310-95 "Seamless steel raj rau siab siab boiler" kev cai.Kev Ntsuas Xyuas, Kuaj Dej Siab thiab Kev Ntsuas Siab Zeev yog tib yam li GB3087-82;Cuam tshuam kev ntsuas raws li GB229-94, flaring kuaj raws li GB / T242-97, grain loj sim raws li YB / T5148-93;Raws li GB13298-91 rau microstructure tshuaj xyuas, GB224-87 rau Decarburization Txheej Kev Soj Ntsuam thiab GB / T5777-96 Rau Kev Section.
(3) Kev tshuaj xyuas lub cev thiab cov ntsuas ntawm cov lag luam boiles boiles yuav tsum tau nqa tawm raws li cov qauv kev cuam tshuam hauv daim ntawv cog lus.
Kev kub siab seamless yeeb, cov txheej txheem ntau lawm
Kev kub siab seamless cov yeeb nkab, yog hom ntawm seamless raj.Txoj kev tsim khoom yog tib yam li seamless yeeb, tab sis muaj cov cai nruj ntawm hom steel siv los tsim cov hlau yeeb.Raws li kev siv ntsuas kub tau muab faib ua ob hom kev ua haujlwm boiler boiler boiler thiab kev kub siab boiler raj.
① cov yeeb nkab siab seamless, thaum lub cev ua haujlwm nyob hauv qab no 450 thiab No.20 Carbon Bolled steel kub dov yeeb lossis txias drawn yeeb nkab.
② cov yeeb nkab siab seamless yeeb, thaum siv, cov yeeb nkab feem ntau raws li qhov kub thiab kub siab.Nyob rau hauv qhov kev txiav txim ntawm kub flue roj thiab dej vapor, oxidation thiab corrosion yuav tshwm sim.Cov yeeb nkab steel yuav tsum muaj lub zog ruaj khov, siab oxidation corrosion kuj thiab zoo microstructure stability.
| Txuj | Qib hlau | Tshuaj muaj pes tsawg leeg (%) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | AL | W | Nb | N | ||
| ASME Sauce10 | Najikb | 0.17 ib ~ 0.25 | ≥0.1 | 0.7 ua Tom ntej no 1.0 | ≤ 0.03 | ≤ 0.03 | |||||||||
| Sa106c | 0.23 ~ 0.27 | ≥0.1 | 0.7 ua Tom ntej no 1.0 | ≤ 0.03 | ≤ 0.03 | ||||||||||
| ASME SA333 | SA333I | 0.09 ~ 0.12 | / | 0.7 ua Tom ntej no 1.0 | ≤ 0.02 | ≤ 0.01 | |||||||||
| Sa33Kii | 0.09 ~ 0.12 | ≥0.1 | 0.9 ~ 1.1 | ≤ 0.02 | ≤ 0.01 | ||||||||||
| ASME A335 | SA335P11 | 0.05 Nws Tom ntej 0.15 | 0.5 Tom ntej no 1.0 | 0.3 Tom qab 0.6 | ≤ 0.03 | ≤ 0.03 | 1.0 ~ 1.5 | 0.5 Tom ntej no 1.0 | |||||||
| SA335p12 | 0.05 Nws Tom ntej 0.15 | ≤0.5 | 0.3 ~ 0.6 | ≤ 0.03 | ≤ 0.03 | 0.8 ua Tom qab 1.25 | 0.44 ib ~ 0.65 | ||||||||
| Sa335p22 | 0.05 Nws Tom ntej 0.15 | ≤0.5 | 0.3 ~ 0.6 | ≤ 0.03 | ≤ 0.03 | 1.9 2.5 | 0.87 ~ 1.13 | ||||||||
| SA335p5 | ≤ 0.15 | ≤0.5 | 0.3 ~ 0.6 | ≤ 0.03 | ≤ 0.03 | 4.0 Tom 6. 3.0 | 0.45 ib ~ 0.65 | ||||||||
| SA335P91 | 0.08 ib ~ 0.12 | 0.2 Tom 0.5 | 0.3 ~ 0.6 | ≤ 0.02 | ≤ 0.01 | 8.0 ib ~ 9.5 | 0.85 ib Download 3.05 | I≤0.4 | 0.18 ~ 0.25 | ≤ 0.015 | 0.06 Tom ntej 0.1 | 0.03 ib ~ 0.07 | |||
| Sa335p92 | 0.07 ib ~ 0.13 | ≤0.5 | 0.3 ~ 0.6 | ≤ 0.02 | ≤ 0.01 | 8.5 ~ 9.5 | 0.3 ~ 0.6 | B0.001 0.006 | I≤0.4 | 0.15 ~ 0.25 | ≤ 0.015 | 1.5 2. 2.0 | 0.04 ~ 0.09 | 0.03 ib ~ 0.07 | |
| DIN 17175 | St45.8III | ≤ 0.21 | 0.1 ~ 0.35 | 0.4 ~ 1.2 | ≤ 0.04 | ≤ 0.04 | ≤0.3 | ||||||||
| 15mo3 | 0.12 ~ 0.2 | 0.1 ~ 0.35 | 0.4 0.8 | ≤ 0.035 | ≤ 0.035 | 0.25 ~ 0.35 | |||||||||
| 13Crmo44 | 0.1 ~ 0.18 | 0.1 ~ 0.35 | 0.4 Tom qab 0.7 | ≤ 0.035 | ≤ 0.035 | 0.7 ua ~ 1.1 | 0.45 ib ~ 0.65 | ||||||||
| 10crmo910 | 0.08 ib Tom ntej 0.15 | ≤0.5 | 0.3 Tom qab 0.7 | ≤ 0.025 | ≤ 0.02 | 2.0 Tom ntej no | 0.9 ~ 1.1 | ≤ 0.3 | ≤0.3 | ≤ 0.015 | 0.015 ib ~ 0.045 | ||||
| EN10216 -2 | WB36 | ≤ 0.17 | 0.25 Tom 0.5 | 0.8 ua ~ 1.2 | ≤ 0.025 | ≤ 0.02 | ≤0.3 | 0.25 Tom 0.5 | 0.5 0.8 | 1.0 ~ 1.3 | ≤ 0.015 | ||||
Khoom Qhia
