Cov Hlau Carbon Seamless Steel Tube - Royal Group

1. Kub dov (extrusion seamless steel yeeb nkab): lub raj puag ncig dawb paug → cua sov → perforating → peb-siab diagonal dov, txuas ntxiv dov lossis extrusion → stripping → sizing (lossis txo) → txias → straightening → hydrostatic xeem (lossis tshuaj xyuas) → cim → cia
Cov khoom siv raw ntawm dov seamless raj yog puag ncig raj billet, puag ncig raj embryo yog txiav thiab ua tiav los ntawm kev txiav tshuab nrog kev loj hlob ntawm li 1 'meter' dawb paug, thiab xa mus rau lub cub tawg los ntawm conveyor siv cua sov. Lub billet raug pub rau hauv lub cub tawg thiab cua sov txog li 1200 degrees Celsius. Cov roj yog hydrogen lossis acetylene. Kev tswj qhov kub hauv lub cub tawg yog qhov teeb meem tseem ceeb. Tom qab lub raj billet puag ncig tawm los, nws yog perforated los ntawm lub punch siab. Feem ntau, lub perforator feem ntau yog lub conical dov perforator. Hom perforator no muaj kev ua haujlwm siab, cov khoom zoo, lub cheeb perforating loj thiab tuaj yeem hnav ntau yam hlau. Tom qab perforation, lub raj billet puag ncig yog dov los ntawm peb lub diagonal siab, txuas ntxiv dov lossis extrusion. Tom qab extrusion, cov yeeb nkab yuav tsum tau tshem tawm rau sizing. Lub caliper tig mus rau hauv lub embryo hlau los ntawm lub conical laum ntawm kev kub ceev kom punch qhov thiab tsim cov yeeb nkab hlau. Lub cheeb sab hauv ntawm cov yeeb nkab hlau yog txiav txim siab los ntawm lub cheeb sab nraud ntev ntawm lub caliper laum ntsis. Tom qab ntsuas qhov loj ntawm cov yeeb nkab hlau, nws nkag mus rau hauv lub tsev txias thiab txias los ntawm kev txau dej. Tom qab txias cov yeeb nkab hlau, nws yuav raug ncaj.
2. Cov yeeb nkab hlau tsis muaj qhov (dov) txias: lub raj puag ncig dawb paug → cua sov → perforation → heading → annealing → pickling → oiling (tooj liab plating) → ntau-pass txias kos duab (txias dov) → lub raj dawb paug → kev kho cua sov → ncaj → hydrostatic xeem (kev tshuaj xyuas) → cim → cia.
Txoj kev dov ntawm kev kos duab txias (dov) cov yeeb nkab hlau tsis muaj qhov sib txuas yog qhov nyuaj dua li ntawm kev dov kub (extrusion) cov yeeb nkab hlau tsis muaj qhov sib txuas. Peb kauj ruam thawj zaug ntawm lawv cov txheej txheem ntau lawm yeej zoo ib yam. Qhov sib txawv ntawm kauj ruam thib plaub, lub raj puag ncig dawb tom qab xuas nrig, mus rau lub taub hau, annealing. Tom qab annealing, cov kua qaub tshwj xeeb yog siv rau pickling. Tom qab pickling, roj yog thov. Qhov no yog ua raws li kev kho cua sov tshwj xeeb ntawm lub raj rebillet tom qab ntau zaus kos duab txias (dov txias). Tom qab kev kho cua sov, nws yog straightened.