Cov yeeb nkab steel yog lub hollow ntev sawb ntawm cov hlau, uas yog dav siv los ua lub raj xa dej, xws li roj, nkev, dej, roj, chav, thiab lwm yam. Tsis tas li ntawd, nws yog qhov sib dua ntawm qhov hnyav thaum khoov thiab torsional lub zog. tib yam, yog li nws kuj tau siv dav Siv hauv kev tsim cov khoom siv tshuab thiab cov qauv tsim engineering.Nws kuj yog siv los tsim ntau yam riam phom, chim, plhaub, thiab lwm yam. Welded steel kav, los yog welded kav, belongs rau seamed steel kav, uas yog steel kav ua los ntawm steel daim hlau los yog strips tom qab crimping thiab vuam, feem ntau nrog ntev 6 meters.Cov txheej txheem ntau lawm ntawm welded steel yeeb nkab yog yooj yim, cov efficiency ntau lawm, muaj ntau ntau yam thiab specifications, thiab cov peev txheej ntawm cov khoom siv me me, tab sis lub zog dav dav yog qis dua li seamless steel yeeb nkab.
Welded steel yeeb nkab classification
Muab faib los ntawm txoj kev tsim khoom
(1) Raws li cov txheej txheem - arc welded yeeb nkab, tsis kam welded yeeb nkab (siab zaus, tsawg zaus), roj welded yeeb nkab, rauv welded yeeb nkab
(2) Raws li cov welded - ncaj seam welded yeeb nkab, kauv welded yeeb nkab
Classified los ntawm seem duab
(1) Tej yam yooj yim cross-section steel kav - round steel kav, square steel kav, oval steel kav, daim duab peb sab steel kav, hexagonal steel kav, rhombus steel kav, octagonal steel kav, semicircular steel voj voog, lwm yam
(2) Cov kav hlau tsis sib haum - tsis sib npaug hexagonal steel kav, tsib-petal plum-puab steel kav, ob-convex steel kav, ob-concave steel kav, melon-shaped steel kav, conical steel kav, corrugated steel kav, cas steel kav, thiab lwm yam.
Raws li phab ntsa tuab, nws tuaj yeem muab faib ua: nyias-walled steel yeeb nkab thiab tuab-walled steel yeeb nkab;
Raws li cov duab ntawm qhov kawg, nws tuaj yeem muab faib ua: puag ncig welded yeeb nkab thiab tshwj xeeb-puab (square, ca, thiab lwm yam) welded yeeb nkab;
Kev faib tawm los ntawm lub hom phiaj
General welded yeeb nkab, galvanized welded yeeb nkab, oxygen-blown welded yeeb nkab, hlau casing, metric welded yeeb nkab, idler yeeb nkab, tob zoo twj tso kua mis, tsheb yeeb nkab, transformer yeeb nkab, hluav taws xob welded nyias-walled yeeb nkab, hluav taws xob welded tshwj xeeb-zoo li tus yeeb nkab, scaffold yeeb nkab thiab kauv welded yeeb nkab.
Lub hom phiaj tseem ceeb
Nws yog dav siv hauv dej engineering, petrochemical kev lag luam, tshuaj lom neeg kev lag luam, hluav taws xob kev lag luam, kev ua liaj ua teb irrigation, thiab kev tsim kho hauv nroog.Nws yog ib qho ntawm nees nkaum cov khoom tseem ceeb tsim los ntawm peb lub teb chaws.
Siv rau kev thauj mus los ua kua: dej thiab dej.Rau kev thauj mus los roj: roj, nkev, roj av kua roj.
Rau cov hom phiaj: raws li piling kav, raws li txuas hniav;kav dej rau wharves, txoj kev, lub tsev, thiab lwm yam.
Welded steel kav tau muab faib ua galvanized thiab tsis-galvanized raws li kev kho saum npoo ntawm cov yeeb nkab.Welded steel kav tuaj yeem muab faib ua ob hom thaum lawv tawm hauv lub Hoobkas: ib qho yog threaded ntawm qhov kawg ntawm cov yeeb nkab, thiab lwm yam yog tsis threaded ntawm qhov kawg ntawm cov yeeb nkab.Rau welded steel kav nrog threads ntawm cov yeeb nkab kawg, qhov ntev ntawm txhua yeeb nkab yog 4-9m, thiab rau welded steel kav tsis muaj xov, qhov ntev ntawm txhua yeeb nkab yog 4-12m.
Welded steel kav yog muab faib ua nyias-walled steel kav, thickened steel kav thiab zoo tib yam steel kav raws li lub thickness ntawm cov yeeb nkab phab ntsa.Ordinary steel kav yog feem ntau siv hauv cov kav dej, thiab lawv qhov kev ntsuas siab yog 2.0MPa.Kev ntsuas siab ntawm cov yeeb nkab tuab yog 3.0MPa.
Muaj ntau txoj kev sib txuas rau welded steel kav, nrog rau kev sib txuas threaded, flange kev twb kev txuas thiab vuam.Qhov kev sib txuas ntawm flange tau muab faib ua threaded flange kev twb kev txuas thiab vuam flange kev twb kev txuas, thiab txoj kev vuam yog muab faib ua roj welding thiab arc vuam.
Feem ntau siv welded steel yeeb nkab specification ntau yam: nominal txoj kab uas hla 6 ~ 150mm
Welded steel kav tuaj yeem muab faib ua peb pawg raws li txheej txheem tsim:
1. Hluav taws xob kuj welded steel yeeb nkab
Hluav taws xob kuj welded steel yeeb nkab, lus Askiv lub npe ERW (Electric resistance welded Pipe), weld hom yog ncaj seam.Lub vuam vuam siv lub siab vuam txoj kev tsis muaj cov hlau muab tub lim.Tsis muaj kev txhaws ntawm lwm cov khoom hauv lub vuam seam.Cov nyhuv ntawm daim tawv nqaij thiab qhov sib thooj ntawm cov high-frequency tam sim no ua rau lub ntug ntawm lub phaj instantly rhuab mus rau lub vuam kub, thiab lub forging yog tsim los ntawm squeezing lub extrusion roller.Cov ntaub so ntswg welds.
Resistance welded steel yeeb nkab yuav muab faib ua ob pawg: high zaus kuj welding HFW (High zaus welded yeeb nkab) thiab tsawg zaus kuj welding LFW (Low zaus vuam).
ERW steel kav feem ntau yog siv los thauj cov vapor thiab cov khoom ua kua xws li roj thiab nkev, thiab tuaj yeem ua tau raws li ntau yam kev xav tau ntawm kev kub siab thiab qis.Tam sim no, lawv tuav txoj haujlwm tseem ceeb hauv kev thauj mus los hauv lub ntiaj teb.
2. Kauv welded steel yeeb nkab
Kauv welded steel yeeb nkab, lus Askiv lub npe SSAW (Spiral submerged-arc vuam yeeb nkab), weld hom yog kauv seam.Cov txheej txheem ntawm submerged arc vuam yog saws, thiab sab hauv thiab txheej ob txheej yog welded.Submerged arc welding (xws li submerged arc surfacing thiab electroslag surfacing, thiab lwm yam) yog ib qho tseem ceeb welding txoj kev, uas muaj qhov zoo ntawm kev ruaj khov vuam zoo, siab vuam productivity, tsis muaj arc teeb thiab me ntsis pa luam yeeb thiab hmoov av.
Lub kauv welded yeeb nkab muaj ib txoj kab uas hla loj, uas tuaj yeem ncav cuag ntau tshaj 3000mm, thiab yog qhov tsim nyog rau kev thauj mus los ntawm cov kav dej loj thiab cov qauv tsim.
Peb, ncaj seam welded steel yeeb nkab
Longitudinally Submerged Arc Welded Pipe, lub npe lus Askiv yog LSAW (Longitudinally Submerged Arc Welded Pipe), thiab hom vuam yog ncaj seam.Cov txheej txheem ntawm submerged arc vuam kuj tseem siv, thiab ob txheej txheej sab hauv thiab sab nraud yog welded.Cov phab ntsa tuab ntawm cov yeeb nkab ncaj seam steel yog qhov loj, thiab nws txoj kev siv yog zoo ib yam li cov kauv welded steel yeeb nkab.
Raws li cov txheej txheem sib txawv, ncaj seam welded steel kav yuav muab faib ua ob pawg: UOE (Uing thiab Oing sib sau cov yeeb nkab) thiab JCOE (J-ing, C-ing thiab O-ing yeeb nkab).UOE forming method (U forming, O forming, E txoj kab uas hla expansion), JCOE txoj kev (steel phaj yog nias rau hauv J puab, ces nias rau hauv C duab thiab O zoo nyob rau hauv lem, thiab ces nthuav).
Nws yuav tsum tau muab sau tseg tias submerged arc vuam txheej txheem (SAW) yog ib hom hluav taws xob fusion vuam (EFW Electric Fusion Welded yeeb nkab), uas yog muab cov hlau los ntawm cua sov cov hlau ntawm ib los yog ob peb consumable electrodes thiab workpiece.Ib qho ntawm cov txheej txheem nyob rau hauv uas lub arc tag nrho melts cov hlau thiab cov khoom muab tub lim tsis muaj siab, thiab muab tub lim hlau los ntawm cov electrodes.
Post lub sij hawm: Jan-06-2023