Chaw tsim tshuaj paus ntawm 45 # tuab phab ntsa seamless steel yeeb nkab
Thick walled steel yeeb nkab, cov yeeb nkab steel uas nws qhov sib piv ntawm sab nraud rau phab ntsa thickness tsawg dua 20 yog hu ua tuab phab ntsa steel yeeb nkab. Nws yog tsuas yog siv raws li roj av geological drilling yeeb nkab, cracking yeeb nkab rau petrochemical kev lag luam, boiler yeeb nkab, bearing yeeb nkab, high-precision structural yeeb nkab rau tsheb, tsheb laij teb thiab aviation, thiab lwm yam. nyob rau hauv lub thickness ntawm steel yeeb nkab phab ntsa. Feem ntau hais lus, nyias phab ntsa steel kav yog cov cuab yeej txias txias, thaum tuab phab ntsa steel kav yog feem ntau kub dov tshuab. Yog tias nws txawv ntawm chav ntsuas, nws feem ntau suav hais tias phab ntsa tuab / cov yeeb nkab txoj kab uas hla sib npaug li 0.05 yog cov dej ntws ntawm cov phab ntsa tuab tuab thiab nyias phab ntsa steel yeeb nkab, Cov phab ntsa nyias nyias steel yeeb nkab nrog phab ntsa thickness / yeeb nkab txoj kab uas hla tsawg dua 0.05. thiab cov yeeb nkab tuab-walled steel nrog txoj kab uas hla ntau dua 0.05. Nyob rau hauv cov nqe lus ntawm daim ntawv thov, nyias-walled steel yeeb nkab feem ntau yog siv rau cov yeeb nkab. Cov phab ntsa tuab steel yeeb nkab feem ntau yog siv rau hauv qhov khoob ntawm qhov khoob. Siv rau cov kabmob siab thiab cov kav dej tseem ceeb. Thick walled steel kav yog siv rau hauv kais dej engineering, petrochemical kev lag luam, tshuaj lom neeg kev lag luam, hluav taws xob fais fab kev lag luam, ua liaj ua teb irrigation thiab kev tsim kho hauv nroog. Rau kev thauj mus los ua kua: siv dej thiab tso dej. Rau cov roj kis tau tus mob: roj, ncu thiab roj liquefied roj av. Rau cov qauv: raws li pawg tsav tsheb yeeb nkab thiab choj; Cov kav dej rau wharf, txoj kev, lub tsev qauv, thiab lwm yam. Cov khoom siv feem ntau siv hauv Suav teb yog: 10 #, 20 #, 45 #, 42CrMo, 36crmo, 40Cr, 20Cr, 15CrMo, 12Cr1MoV, Q235A, Q235B, 0Cr13, 1 Crni , 0cr18ni11nb, Q345A, Q345B, Q345C, L245, L290, X42, X46, X70, X80. Thaum welding tuab phab ntsa steel kav, thawj zaug ntxuav cov roj, xim, dej, xeb, thiab lwm yam ntawm cov welded hlws ris, thiab ces ua grooves raws li phab ntsa thickness. Cov tuab tuab yuav qhib loj dua thiab cov nyias nyias yuav qhib me me (lub kaum sab xis), thiab tom qab ntawd qhov sib txawv ntawm cov khoom, uas feem ntau yog 1-1.5 npaug ntawm txoj kab uas hla ntawm vuam pas nrig lossis vuam hlau. Yog tias qhov zawj yog qhov qhib loj dua, nws tuaj yeem khaws cia me me. Spot vuam yuav tsum tau ua yam tsawg kawg ntawm peb lub ntsiab lus. Feem ntau, nws yooj yim dua ua haujlwm ntawm plaub lub ntsiab lus. Thaum welding, nws yuav tsum yog ib nrab welded. Qhov pib taw tes yuav tsum yog li 1 cm saum toj no hauv qab taw tes, yog li ntawd cov kev sib koom ua ke tuaj yeem ua los ntawm sab nraud. Yog tias cov yeeb nkab steel phab ntsa yog tuab, nws yuav tsum tau muab tso rau hauv, tsawg kawg yog ob txheej. Cov txheej thib ob tuaj yeem welded tsuas yog tom qab thawj txheej yog welded nyob rau hauv tag nrho lub voj voog.
Round raj → cua sov → tho → peb yob hla dov, nruam dov los yog extrusion → yeeb nkab stripping → sizing (los yog txo) → txias → straightening → hydrostatic test (los yog flaw detection) → marking
Thaum cov phab ntsa tuab ntawm cov yeeb nkab steel tsis ntau tshaj 12.5mm, qhov vuam qhov txuas tsis ntau tshaj 3.0mm; Thaum cov phab ntsa tuab ntawm cov yeeb nkab steel ntau dua 12.5mm, qhov kev sib txuas yuav tsum tsis txhob ntau dua 3.5mm.
Cov yeeb nkab steel nrog nominal txheej txoj kab uas hla tsis ntau tshaj 168.3mm yuav tsum ncaj los yog raws li qhov khoov Performance index pom zoo los ntawm tus neeg muag khoom thiab tus neeg yuav khoom;
Rau cov kav hlau uas muaj nominal txheej kab uas hla ntau dua 168.3mm, qhov curvature yuav tsum tsis txhob ntau tshaj 0.2% ntawm tag nrho ntev ntawm cov yeeb nkab steel.
Rau cov yeeb nkab steel nrog phab ntsa thickness ntau dua 4 hli ntawm cov yeeb nkab kawg, cov yeeb nkab kawg tuaj yeem ua tiav nrog qhov zawj ntawm 30 ° + 5 ° 0 °, lub hauv paus ntawm 1.6mm ± 0.8mm, thiab cov yeeb nkab kawg txoj kab nqes tsawg dua. los yog sib npaug li 5 mm.
