Kub siab boiler raj chaw tsim tshuaj paus kev muag khoom
(1) Lub teb chaws tseem ceeb ntawm boiler raj yog Nyiv thiab lub teb chaws Yelemees. Cov lus qhia tshwj xeeb ntawm cov khoom siv feem ntau yog 15914.2mm; 2734.0 hli; 219.110.0 hli; 41975mm; 406.460mm, thiab lwm yam. Yam tsawg kawg nkaus specification yog 31.84.5mm, thiab qhov ntev yog feem ntau 5 ~ 8m.
(2) Nyob rau hauv cov ntaub ntawv thov ntshuam, ST45 seamless boiler raj xa los ntawm Mannesmann steel yeeb nkab cog hauv lub teb chaws Yelemees tau pom tias muaj qhov tsis xws luag sab hauv tshaj cov kev cai ntawm cov nroj tsuag thiab cov qauv ntawm German hlau thiab hlau Association.
(3) Alloy steel kav xa los ntawm lub teb chaws Yelemees feem ntau yog 34CrMo4 thiab 12CrMoV. Cov yeeb nkab steel no muaj qhov ua tau zoo ntawm qhov kub thiab txias thiab feem ntau yog siv los ua cov yeeb nkab steel rau qhov kub kub boiler.
(4) Muaj ntau ntau cov yeeb nkab hlau xa tawm los ntawm Nyiv, nrog cov lus qhia ntawm 426.012mm 5 ~ 8m; 152.48.0 hli 12m; 89.110.0 hli 6m; 101.610.0mm12m; 114.38.0 hli 6m; 127.08.0mm9m, thiab lwm yam. Ua raws li cov qauv kev lag luam Japanese jisg3458, thiab qib steel yog stpa25. Cov yeeb nkab steel no feem ntau siv los txhawb cov yeeb nkab superalloy.
High quality carbon structural steel, thiab qib steel yog 20g, 20mng thiab 25mng; Alloy structural steel 15mog, siab siab yeeb nkab.
20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, thiab lwm yam; Ntxiv nrog rau kev ua kom muaj cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab, 1Cr18Ni9 thiab 1cr18ni11nb cov kav dej siab uas nquag siv hauv cov hlau tsis xeb hlau yuav tsum raug kuaj hydrostatic, flaring thiab flattening xeem ib los ntawm ib qho. Cov yeeb nkab steel yuav tsum tau muab xa mus rau hauv qhov chaw kho cua sov.
Tsis tas li ntawd, muaj qee qhov yuav tsum tau ua rau microstructure, grain loj thiab decarburization txheej ntawm cov yeeb nkab steel tiav. Seamless steel yeeb nkab rau geological drilling thiab petroleum drilling tswj; Txhawm rau tshawb xyuas cov qauv pob zeb hauv av, dej hauv av, roj, cov khoom siv hluav taws xob thiab cov ntxhia pob zeb, cov khoom siv drilling yog siv los laum qhov dej.
Roj thiab roj exploitation yog inseparable ntawm drilling. Seamless steel yeeb nkab rau geological drilling tswj thiab roj drilling yog cov cuab yeej tseem ceeb rau kev drilling, feem ntau suav nrog cov tub ntxhais sab nrauv, cov tub ntxhais hauv yeeb nkab, casing, laum yeeb nkab, thiab lwm yam.
Raws li cov yeeb nkab drilling yuav tsum tau ua haujlwm ntawm qhov tob ntawm ntau txhiab meters, kev ua haujlwm yog qhov nyuaj heev, lub laum yeeb nkab bears cov kev ntxhov siab ntawm kev nro, compression, dabtsi yog khoov, torsion thiab unbalanced impact load, thiab tseem hnav los ntawm av nkos thiab pob zeb. . Yog li ntawd, cov yeeb nkab yuav tsum muaj lub zog txaus, hardness, hnav tsis kam thiab kev cuam tshuam toughness, Cov hlau rau cov yeeb nkab steel yog sawv cev los ntawm "DZ" (Geological Suav Pinyin prefix) ntxiv rau tus lej los sawv cev rau cov hlau yield point. Cov qib steel feem ntau yog 45mnb thiab 50Mn ntawm dz45; 40Mn2 thiab 40mn2si ntawm dz50; 40mn2mo thiab 40mnvb ntawm dz55; 40mnmob ntawm DZ60 thiab 27mnmovb ntawm dz65.
Cov yeeb nkab steel raug xa mus rau hauv cov cua sov kho.
Seamless yeeb nkab rau rauv yeeb nkab, cua sov exchanger yeeb nkab thiab pipeline nyob rau hauv roj av refinery. Nws feem ntau yog ua los ntawm cov pa roj carbon zoo (10, 20), hlau alloy (12CrMo, 15CrMo), cov hlau tsis muaj cua sov (12cr2mo, 15cr5mo) thiab stainless hlau (1Cr18Ni9, 1Cr18Ni9Ti). Ntxiv nrog rau cov tshuaj lom neeg muaj pes tsawg leeg thiab ntau yam khoom siv ntawm cov yeeb nkab steel, nws tseem yuav tsum tau ua kom ntseeg tau tias hydrostatic, flattening, flaring thiab lwm yam kev ntsuam xyuas, nrog rau qhov zoo ntawm qhov chaw thiab kev sim tsis zoo. Cov yeeb nkab steel yuav tsum tau muab xa mus rau hauv kev kho cua sov.
Txhua yam ntawm stainless hlau kub-kuav los tiag thiab txias-kuav los tiag stainless hlau kav yog dav siv nyob rau hauv roj av thiab tshuaj siv cov kav dej thiab stainless hlau yam ntxwv qhov chaw rau ntau yam hom phiaj. Ntxiv nrog rau kev ua kom muaj cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab, tag nrho cov kav hlau steel siv los dais kua dej yuav tsum tsim nyog hauv kev sim hydrostatic. Ntau yam tshwj xeeb steel kav yuav tsum tau lav raws li cov txheej txheem teev tseg.
Siab siab seamless steel yeeb nkab yog ib hom seamless yeeb nkab. Txoj kev tsim khoom yog tib yam li cov yeeb nkab seamless, tab sis muaj cov kev cai nruj rau cov qib steel siv hauv kev tsim cov yeeb nkab steel. Raws li qhov kev pabcuam kub, nws tau muab faib ua cov raj boiler dav dav thiab siab-siab boiler raj.
① Qhov kev pabcuam kub ntawm high-pressure seamless steel yeeb nkab yog qis dua 450 ℃, thiab cov yeeb nkab hauv tsev yog tsim los ntawm No. 10 thiab No. 20 carbon steel kub dov yeeb nkab lossis cov yeeb nkab txias.
②Kev kub siab seamless steel yeeb nkab yog feem ntau nyob rau hauv qhov kub thiab txias thiab kub siab. Cov yeeb nkab yuav raug oxidized thiab corroded nyob rau hauv qhov kev txiav txim ntawm kub flue roj thiab chav. Cov yeeb nkab steel yuav tsum muaj lub zog ntev, siab tiv thaiv oxidation thiab corrosion kev ua tau zoo thiab kev ruaj ntseg zoo.
① Kev kub siab seamless steel yeeb nkab yog tsuas yog siv los tsim cov yeeb nkab dej phab ntsa, cov yeeb nkab dej kub npau npau, superheated chav yeeb nkab, superheated chav yeeb nkab rau locomotive boiler, cov yeeb nkab loj thiab me me thiab cov yeeb nkab cib.
② Kev kub siab seamless steel yeeb nkab yog siv los tsim superheater yeeb nkab, reheater yeeb nkab, cua duct, lub ntsiab chav yeeb nkab, thiab lwm yam ntawm high-pressure thiab ultra-siab boilers nyob rau hauv fais fab nroj tsuag
