Seamless yeeb nkab yog tsim los ntawm extruding hlau mus rau qhov ntev ntev; Yog li ntawd ERW yeeb nkab muaj ib qho kev sib koom ua ke nyob rau hauv nws txoj kab hla, hos seamless yeeb nkab tsis muaj kev sib koom ua ke hauv nws qhov hla hla-tawm nws qhov ntev. lwm.
1. Cov txheej txheem sib txawv. Cov yeeb nkab seamless yog tsim los ntawm kev tho ib lub billet lossis ib lub raj tsis muaj zog, thiab tom qab ntawd ua nws los ntawm kub dov lossis txias dov. Welded kav yog tsim los ntawm dabtsi yog khoov thiab vuam steel daim hlau los yog strips.
2. Cov tsos mob txawv. Tsis muaj seam nyob rau saum npoo ntawm seamless steel yeeb nkab. Feem ntau welded seams nyob rau saum npoo ntawm cov yeeb nkab welded.
3. Txawv phab ntsa thickness Qhov precision ntawm seamless steel yeeb nkab yog tsawg, thiab phab ntsa thickness kuj tuab. Cov yeeb nkab steel ntawm cov yeeb nkab welded muaj siab precision thiab phab ntsa thickness feem ntau kuj nyias
Seamless steel kav yog dav siv. Lub hom phiaj dav dav seamless steel kav yog dov los ntawm cov pa roj carbon zoo tib yam, cov cuab yeej siv qis qis lossis cov cuab yeej alloy steels, thiab cov ntim ntau lawm yog loj, feem ntau yog siv los ua cov kav dej lossis cov khoom siv rau kev thauj cov kua.
Raws li cov hom phiaj sib txawv, muaj peb hom khoom siv:
a. Muab khoom raws li muaj pes tsawg leeg thiab lub cev muaj zog;
b. Muab khoom raws li lub cev ua haujlwm;
c. Muab khoom raws li kev ntsuas siab. Seamless steel kav xa los ntawm Hom a thiab b, yog tias siv los tiv thaiv cov kua siab, kuj yuav tsum raug kuaj xyuas.
Lub hom phiaj tseem ceeb ntawm seamless steel kav yog seamless steel kav rau cua sov rauv, seamless steel kav rau geological ib puag ncig thiab seamless steel kav rau cov roj crude.
Welded steel kav, tseem hu ua welded kav, yog seamless steel kav ua los ntawm steel los yog chains uas dov thiab zoo li tus thiab ces welded los ntawm hluav taws xob welding. Welded steel kav muaj cov cuab yeej ua haujlwm yooj yim, kev ua haujlwm siab ntau lawm, ntau yam thiab cov lus qhia tshwj xeeb, thiab cov cuab yeej siv tsawg dua, tab sis lawv lub zog dav dav yog qis dua li cov kav dej seamless.
Los ntawm lub xyoo pua 20th mus rau 30th era, nrog rau kev loj hlob sai ntawm high-zoo kub dov sawb zeb ntau lawm thiab kev loj hlob ntawm hluav taws xob vuam thiab kuaj tshuab, vuam zoo tau txuas ntxiv txhim kho, thiab cov hom thiab specifications ntawm welded steel kav. tau nce ib hnub dhau ib hnub, thiab tau hloov pauv hauv ntau lub lag luam. seamless steel yeeb nkab. Welded steel kav tau muab faib ua ncaj seam welded kav thiab kauv welded kav raws li txoj kev vuam.
Cov txheej txheem ntawm cov yeeb nkab ncaj seam welded yog yooj yim, ntau lawm yog ceev, tus nqi qis, thiab txoj kev loj hlob kuj yog ceev. Lub zog ntawm cov kauv welded yeeb nkab feem ntau yog siab tshaj qhov ncaj seam welded yeeb nkab. Nws tuaj yeem siv los tsim cov kav dej welded nrog cov diameters loj los ntawm qhov nqaim blanks, thiab tseem tuaj yeem tsim cov welded kav nrog cov diameters sib txawv los ntawm qhov tsis muaj qhov dav.
Txawm li cas los xij, piv nrog cov yeeb nkab ncaj nraim ntawm tib qhov loj, qhov vuam ntev yog nce los ntawm 30 ~ 100 feem pua, thiab tus nqi ntau lawm yog qis dua.
Yog li ntawd, feem ntau ntawm cov welded kav nrog me diameters siv ncaj seam welding, thiab feem ntau ntawm cov loj-inch welded kav siv kauv vuam.
