Nyias phab ntsa precision ci raj Hoobkas
Kub dov seamless steel yeeb nkab tau muab faib ua cov yeeb nkab dav dav, qis thiab nruab nrab siab boiler steel yeeb nkab, siab siab boiler steel yeeb nkab, alloy steel yeeb nkab, stainless hlau yeeb nkab, roj av tawg yeeb nkab, geological steel yeeb nkab thiab lwm yam steel yeeb nkab.
Cold rolled (kos) seamless steel yeeb nkab muaj xws li carbon nyias-walled steel yeeb nkab, alloy nyias-walled steel yeeb nkab, stainless hlau nyias-walled steel yeeb nkab, stainless nyias-walled steel yeeb nkab thiab tshwj xeeb-shaped steel yeeb nkab ntxiv rau cov yeeb nkab steel, qis thiab nruab nrab siab boiler steel yeeb nkab, high-pressure boiler steel yeeb nkab, alloy steel yeeb nkab, roj av cracking yeeb nkab thiab lwm yam steel kav. Sab nraud txoj kab uas hla ntawm kub dov seamless yeeb nkab feem ntau ntau dua 32 hli thiab phab ntsa thickness yog 2.5-75 hli. Txoj kab uas hla ntawm txias-dov seamless steel yeeb nkab tuaj yeem ncav cuag 6 hli thiab phab ntsa tuab tuaj yeem ncav cuag 0.25 hli. Sab nraud txoj kab uas hla ntawm nyias-walled yeeb nkab tuaj yeem ncav cuag 5 hli thiab phab ntsa thickness tsawg dua 0.25 hli. Txias dov muaj qhov tseeb qhov tseeb dua li qhov kub dov.
Nws yog ua los ntawm cov pa roj carbon zoo xws li 10, 20, 30, 35 thiab 45, low-alloy structural steel xws li 16Mn thiab 5mnv, lossis alloy steel xws li 40Cr, 30CrMnSi, 45Mn2 thiab 40MnB. 10. Cov kav dej seamless ua los ntawm cov pa roj carbon tsawg xws li 20 feem ntau yog siv rau cov kav dej xa mus. Seamless kav ua los ntawm nruab nrab carbon steel xws li 45 thiab 40Cr yog siv los tsim cov neeg kho tshuab qhov chaw, xws li cov kev ntxhov siab ntawm cov tsheb thiab tsheb laij teb. Feem ntau, lub zog thiab flattening xeem ntawm seamless steel yeeb nkab yuav tsum xyuas kom meej. Kub dov steel kav yuav tsum tau xa nyob rau hauv kub dov lub xeev los yog kub kho lub xeev; Txias dov yog xa tuaj rau hauv qhov chaw kho cua sov.
Nws yog siv los tsim txhua yam ntawm cov qis thiab nruab nrab siab boilers, superheated chav kav, boiling dej kav, dej phab ntsa kav thiab superheated chav kav, cov pa luam yeeb loj, me me kav dej thiab arch cib kav rau locomotive boilers. Kub dov los yog txias dov seamless steel yeeb nkab ua los ntawm high-quality carbon structural steel. Nws yog tsim los ntawm 10 thiab 20 steel. Ntxiv rau kev ua kom muaj cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab, kev sim hydrostatic, crimping, flaring, flattening thiab lwm yam kev ntsuam xyuas yuav tsum tau ua. Kub dov yuav tsum muab xa mus rau hauv lub xeev kub dov, thiab txias dov (dialing) yuav tsum tau muab xa mus rau hauv lub xeev kho cua sov.
Nws yog tsuas yog siv los tsim cov pa roj carbon zoo steel, alloy steel qauv thiab stainless hlau kub-resistant steel seamless steel kav rau chav boiler kav nrog siab siab thiab saum toj no. Cov kav dej boiler no feem ntau ua haujlwm nyob rau hauv qhov kub thiab txias. Cov kav dej kuj tseem yuav raug oxidation thiab corrosion nyob rau hauv qhov kev txiav txim ntawm high-temperature flue gas thiab chav. Yog li ntawd, cov yeeb nkab steel yuav tsum muaj lub zog ruaj khov thiab siab oxidation tsis kam, cov qib steel tau txais yog: cov pa roj carbon zoo steel, thiab cov qib steel yog 20g, 20mng thiab 25mng; Alloy structural steel qib: 15mog, 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 high-pressure boiler raj feem ntau 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.
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 kav rau geological drilling 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 cov 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, ua haujlwm. Cov xwm txheej yog qhov nyuaj heev, lub laum yeeb nkab bears qhov kev ntxhov siab ntawm qhov nro, compression, dabtsi yog khoov, torsion thiab unbalanced cuam tshuam 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 raj rau cov tub rauv, cov raj xa hluav taws xob thiab cov kav dej hauv cov roj av refineries. 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.
Stainless hlau yeeb nkab: 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.
Raws li kev txheeb cais tsis tiav, muaj ntau tshaj 240 seamless yeeb nkab ntau lawm tuam txhab thiab ntau tshaj 250 seamless steel yeeb nkab units nyob rau hauv Tuam Tshoj, muaj peev xwm txhua xyoo ntawm ntau tshaj 4.5 lab tons. Nyob rau hauv cov nqe lus ntawm caliber < φ 76, accounting rau 35% < φ 159-650, accounting rau 25%. Hais txog ntau yam, 1.9 lab tons ntawm cov kav dej dav dav, suav txog 54%; 760000 tons ntawm cov kav dej, suav txog 5.7%; 150000 tons ntawm hydraulic prop thiab precision yeeb nkab, accounting rau 4.3%; Stainless yeeb nkab, bearing yeeb nkab thiab tsheb yeeb nkab yog 50000 tons, accounting rau 1.4%.
Lub billet raug xa mus rau lub qhov cub kom cua sov ntawm qhov kub ntawm txog 1200 degrees Celsius. Cov roj yog hydrogen lossis acetylene. Kev tswj qhov kub thiab txias hauv qhov cub yog qhov teeb meem tseem ceeb. Tom qab lub round tube billet tawm ntawm lub cub tawg, nws yuav tsum tau pierced los ntawm lub siab piercer. Feem ntau, qhov ntau tshaj piercer yog lub conical yob piercer. Cov piercer no muaj kev ua haujlwm siab, cov khoom lag luam zoo, loj perforation nthuav dav thiab tuaj yeem hnav ntau qib steel. Tom qab perforation, lub puag ncig lub raj dawb paug yog txuas ntxiv dov los ntawm peb yob cross dov, nruam dov los yog extrusion. Tom qab extrusion, tshem tawm cov yeeb nkab rau sizing. Lub tshuab sizing rotates rau hauv steel embryo ntawm kev kub ceev los ntawm lub conical laum los tsim ib tug steel yeeb nkab. Sab hauv txoj kab uas hla ntawm cov yeeb nkab steel yog txiav txim siab los ntawm qhov ntev ntawm lub tshuab sizing me ntsis. Tom qab sizing, cov yeeb nkab steel nkag mus rau hauv qhov txias ntauwd thiab txias los ntawm cov tshuaj tsuag dej. Tom qab txias, cov yeeb nkab steel yuav ncaj. Tom qab straightening, cov yeeb nkab steel raug xa mus rau cov hlau tsis zoo (lossis kuaj hydrostatic) los ntawm txoj siv conveyor rau kev kuaj pom qhov tsis zoo. Yog tias muaj cov kab nrib pleb, npuas thiab lwm yam teeb meem hauv cov yeeb nkab steel, lawv yuav raug kuaj pom. Cov kav hlau yuav tsum nruj me ntsis xaiv los ntawm tes tom qab kev tshuaj xyuas zoo. Tom qab cov yeeb nkab steel raug tshuaj xyuas, tus naj npawb, specification, ntau lawm batch naj npawb, thiab lwm yam yuav tsum tau txau nrog cov xim. Thiab hoisted mus rau hauv lub warehouse los ntawm crane.
