Seamless steel yeeb nkab ncaj qha muag ntawm ntau yam ntaub ntawv

1.Lub hom phiaj dav dav seamless steel yeeb nkab yog dov los ntawm cov pa roj carbon zoo tib yam steel, qis alloy structural steel los yog alloy structural steel, nrog cov khoom loj tshaj plaws. Nws yog tsuas yog siv los ua cov kav dej lossis cov khoom siv rau kev xa cov kua dej.

2. Muaj peb hom khoom siv raws li qhov sib txawv:

ib. Muab khoom raws li tshuaj muaj pes tsawg leeg thiab txhua yam khoom;

b. Muab khoom raws li cov khoom siv kho tshuab;

c.Muab khoom raws li kev kuaj hydrostatic. Yog hais tias cov yeeb nkab steel muab raws li chav kawm A thiab B yog siv los dais kua siab, nws yuav tsum raug kuaj hydrostatic.

3. Seamless kav rau lub hom phiaj tshwj xeeb suav nrog seamless kav rau boilers, tshuaj thiab hluav taws xob fais fab, seamless steel kav rau geology thiab seamless kav rau roj av.

Seamless steel yeeb nkab muaj qhov hollow seem thiab tau dav siv los ua cov raj xa dej, xws li cov kav dej xa cov roj, cov nkev, roj, roj, dej thiab qee yam khoom siv. Piv nrog cov khoom hlau xws li cov hlau puag ncig, cov yeeb nkab steel muaj tib lub zog flexural thiab torsional thiab sib dua. Nws yog ib qho kev lag luam steel hlau.

Nws yog dav siv los tsim cov khoom siv thiab cov khoom siv kho tshuab, xws li roj laum yeeb nkab, tsheb sib kis ncej, tsheb kauj vab ncej thiab steel scaffold siv hauv kev tsim kho. Nws tuaj yeem txhim kho kev siv cov khoom siv, ua kom yooj yim ntawm cov txheej txheem tsim khoom, txuag cov ntaub ntawv thiab cov sijhawm ua haujlwm. Nws tau dav tsim nrog cov yeeb nkab steel.

① Cov txheej txheem tseem ceeb ntawm kub dov seamless steel yeeb nkab (△ cov txheej txheem tshuaj xyuas tseem ceeb):

Kev npaj thiab tshuaj xyuas cov yeeb nkab dawb △ → cua sov ntawm cov yeeb nkab tsis muaj → perforation → yeeb nkab dov → reheating ntawm cov yeeb nkab steel → sizing (txo) → kev kho cua sov △ → straightening ntawm cov yeeb nkab tiav → tiav → tshuaj xyuas △ (tsis muaj kev puas tsuaj, lub cev thiab tshuaj lom neeg, kev soj ntsuam lub rooj zaum ) → warehouses

② Cov txheej txheem tseem ceeb ntawm txias dov (kos) seamless steel yeeb nkab:

Kev npaj dawb → pickling thiab lubrication → txias dov (kos duab) → kho cua sov → straightening → tiav → tshuaj xyuas

Kev tsim cov txheej txheem ntawm seamless steel yeeb nkab tuaj yeem muab faib ua cov duab txias thiab kub dov. Cov txheej txheem tsim khoom ntawm cov yeeb nkab txias-dov seamless steel yeeb nkab yog feem ntau nyuaj dua li kub dov. Cov yeeb nkab khoob yuav tsum ua ntej yuav tsum tau ua rau peb yob txuas ntxiv dov, thiab qhov ntsuas qhov ntsuas yuav tsum tau ua tom qab extrusion. Yog tias qhov saum npoo tsis teb rau qhov tawg, cov yeeb nkab puag ncig yuav tsum tau txiav los ntawm lub tshuab txiav kom txiav qhov khoob nrog qhov loj ntawm ib meter. Tom qab ntawd nkag mus rau cov txheej txheem annealing. Lub annealing yuav tsum tau pickled nrog kua qaub. Thaum lub sij hawm pickling, xyuam xim rau seb puas muaj cov npuas ntau ntawm qhov chaw. Yog tias muaj ntau cov npuas, nws qhia tau hais tias qhov zoo ntawm cov yeeb nkab steel tsis tuaj yeem ua tau raws li cov qauv sib xws. Cov tsos ntawm txias dov seamless steel yeeb nkab yog luv dua li ntawm kub dov seamless steel yeeb nkab. Cov phab ntsa tuab ntawm cov yeeb nkab txias-dov seamless steel feem ntau me dua li cov yeeb nkab kub-dov seamless steel yeeb nkab, tab sis qhov saum npoo zoo li ci dua li ntawm cov phab ntsa tuab seamless steel yeeb nkab. Qhov saum npoo tsis yog ntxhib heev thiab txoj kab uas hla tsis dhau ntau burrs.

Txoj kev xa khoom ntawm kub-dov seamless steel yeeb nkab feem ntau yog kub-dov thiab xa tom qab kev kho cua sov. Tom qab kev soj ntsuam zoo, cov yeeb nkab kub-dov seamless steel yeeb nkab yuav tsum nruj me ntsis xaiv los ntawm cov neeg ua haujlwm. Tom qab kev soj ntsuam zoo, qhov saum npoo yuav tsum tau oiled, ua raws li los ntawm ntau qhov kev sim ntsuas txias. Tom qab kub dov, qhov kev sim perforation yuav tsum tau ua. Yog hais tias lub perforation expansion loj heev, nws yuav tsum tau straightened thiab kho. Tom qab straightening, nws yog kis mus rau lub flaw detector los ntawm lub conveyor rau flaw detection test. Thaum kawg, nws tau sau npe thiab muab tso rau hauv lub tsev rau khoom tom qab kev npaj tshwj xeeb.

Round raj → cua sov → perforation → peb yob cross dov, nruam dov los yog extrusion → yeeb nkab stripping → sizing (los yog txo) → txias → straightening → hydrostatic test (los yog flaw detection) → marking → warehousing seamless steel yeeb nkab yog ua los ntawm steel ingot los yog cov tube khoom dawb paug los ntawm perforation, thiab ces kub dov, txias dov los yog txias kos. Qhov tshwj xeeb ntawm seamless steel yeeb nkab yog qhia nyob rau hauv mm ntawm txheej kab * phab ntsa thickness.

Sab nraud txoj kab uas hla ntawm kub dov seamless yeeb nkab feem ntau ntau dua 32 hli, thiab phab ntsa thickness yog 2.5-200 hli. Sab nraud txoj kab uas hla ntawm txias-dov seamless steel yeeb nkab tuaj yeem ncav cuag 6 hli, phab ntsa tuab tuaj yeem ncav cuag 0.25mm, sab nraud ntawm cov yeeb nkab nyias nyias 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.

Feem ntau, seamless steel kav yog ua los ntawm cov zoo carbon bonded steels xws li 10, 20, 30, 35 thiab 45, low-alloy structural steels xws li 16Mn thiab 5mnv, los yog bonded steels xws li 40Cr, 30CrMnSi, 45Mn2 thiab 40M. 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.

Kub dov, raws li lub npe implies, qhov kub ntawm dov daim yog siab, yog li lub deformation kuj yog me me thiab loj deformation yuav tsum tau paub. Noj cov dov ntawm steel phaj ua piv txwv, lub thickness ntawm nruam casting slab feem ntau yog hais txog 230mm, thaum tom qab ntxhib dov thiab tiav dov, qhov kawg thickness yog 1 ~ 20mm. Nyob rau tib lub sijhawm, vim tias qhov dav thickness piv ntawm cov hlau phaj me me thiab qhov yuav tsum tau muaj qhov tseeb qhov tseeb yog qhov tsawg, qhov teeb meem zoo li tsis yooj yim tshwm sim, thiab qhov convexity feem ntau yog tswj. Rau cov neeg uas xav tau lub koom haum, nws yog feem ntau pom tau hais tias los ntawm kev tswj dov thiab tswj cov cua txias, uas yog, los tswj qhov pib dov kub thiab qhov kawg dov kub ntawm qhov kawg dov. Round raj → cua sov → perforation → taub hau → annealing → pickling → oiling (tooj liab plating) → multi pass txias drawing (txias dov) → blank raj → heat treatment → straightening → hydrostatic test (flaw detection) → marking → warehousing.