Cold drawn seamless steel rajtxheej txheem: round tube → cua sov → perforation → Heading → annealing → ​​Pickling → oiled (tooj liab) → multi-pass txias drawn (txias dov) → blank raj → heat treatment → straightening → hydrostatic test (testing ) → cim → cia.

Cold drawn steel tube yog nrog kub dov steel coil li raw khoom, thiab tandem txias dov pickled kom tshem tawm oxide nplai, nws tiav dov nyuaj yob, dov nyuaj ntim vim qhov nruam txias deformation tshwm sim los ntawm txias hardening zog, hardness nce qhov taw qhia tsis kam. tawv yas, stamping kev ua tau zoo yuav deteriorate, uas tsuas yog siv tau yooj yim deformation ntawm qhov chaw.Rolling nyuaj yob tuaj yeem siv los ua cov khoom siv raw ntawm cov nroj tsuag kub-dip galvanizing, kub dip galvanizing kab teeb annealing kab.Rolling nyuaj yob hnyav yog feem ntau 6 mus rau 13.5 tons, lub coil txoj kab uas hla ntawm 610mm.

Cov kab mob khaub thuas dav dav, ntim yuav tsum dhau los ntawm kev nruam annealing (CAPL chav tsev) kom tshem tawm qhov txias hardening thiab dov kev ntxhov siab, lossis batch annealing ncav cuag cov khoom siv ntawm cov txheej txheem sib xws.Txias dov steel nto zoo, zoo li, qhov tseeb qhov tseeb zoo dua li cov phaj kub dov, thiab txoj cai dov nyias cov khoom tuab yog li 0.18mm, yog li feem ntau ntawm cov neeg siv nyiam.Cold dov steel coil substrate khoom sib sib zog nqus ua cov khoom muaj nqis ntxiv.Xws li electro-galvanized, kub dip galvanized, electro-galvanized ntiv tes resistant, pleev xim rau steel yob damping composite steel, PVC laminating steel daim hlau, thiab lwm yam., yog li ntawd cov zoo heev zoo ntawm cov khoom no muaj ib tug zoo nkauj, siab tiv thaiv corrosion, tau ua. dav siv.Cold dov steel coil tiav tom qab annealing, txiav lub taub hau, Tail, trimming, flattening, du, hnyav ntim, los yog longitudinal clipboard.Cov khoom siv txias txias yog siv dav hauv kev tsim tsheb, cov khoom siv hluav taws xob hauv tsev, cov twj paj nruag, cov keyboards, cov tsev, cov rooj tog zaum hauv chaw ua haujlwm thiab lwm yam lag luam.Hlau phaj strapping pob luj ntawm 3 mus rau 5 tons.Pav sub-volume feem ntau 3 mus rau 10 tons / ntim.Coil diam 6 m.