Carbon Steel Seamless Steel Tube - Royal Group

1. Kub dov (extrusion seamless steel yeeb nkab): round tube dawb paug → cua sov → perforating → peb-siab kab pheeb ces kaum dov, nruam dov los yog extrusion → stripping → sizing (los yog txo) → txias → straightening → hydrostatic test (los yog soj ntsuam) → marking → khaws cia
Cov khoom siv raw ntawm dov seamless raj yog round tube billet, round tube 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 yog muab tso rau hauv ib lub qhov cub thiab rhuab mus txog 1200 degrees Celsius. Cov roj yog hydrogen lossis acetylene. Kev tswj qhov kub thiab txias hauv qhov cub yog qhov teeb meem tseem ceeb. Tom qab lub round tube billet tawm los, nws yog perforated los ntawm lub siab punch. Feem ntau, feem ntau perforator yog conical yob perforator. Hom perforator no muaj kev ua haujlwm siab, cov khoom lag luam zoo, loj perforating txoj kab uas hla thiab tuaj yeem hnav ntau yam hlau. Tom qab perforation, lub round tube billet yog successively dov los ntawm peb lub siab kab pheeb ces kaum, nruam dov los yog extrusion. Tom qab extrusion, cov yeeb nkab yuav tsum tau muab tshem tawm rau sizing. Lub caliper rotates rau hauv cov hlau embryo los ntawm ib tug conical laum ntawm kev kub ceev rau punch qhov thiab tsim steel kav. Sab hauv txoj kab uas hla ntawm cov yeeb nkab steel yog txiav txim siab los ntawm qhov ntev ntawm lub caliper laum ntsis. Tom qab sizing cov yeeb nkab steel, nws nkag mus rau hauv cov cua txias ntauwd thiab txias los ntawm txau dej. Tom qab txias cov yeeb nkab steel, nws yuav ncaj.
2. Cold-drawn (dov) seamless steel yeeb nkab: round tube dawb paug → cua sov → perforation → taub hau → annealing → pickling → oiling (tooj liab plating) → multi-pass txias drawing (txias dov) → blank raj → tshav kub kho → straightening → Hydrostatic test (kev tshuaj xyuas) → kos npe → cia.
Txoj kev dov ntawm kev kos duab txias (dov) seamless steel yeeb nkab yog qhov nyuaj tshaj li qhov kub dov (extrusion) seamless steel yeeb nkab. Thawj peb kauj ruam ntawm lawv cov txheej txheem ntau lawm yog qhov pib zoo ib yam. Qhov sib txawv ntawm qib plaub, puag ncig lub raj tsis muaj tom qab xuas nrig ntaus, mus rau lub taub hau, annealing. Tom qab annealing, tshwj xeeb acidic kua yog siv rau pickling. Tom qab pickling, roj yog siv. Qhov no yog ua raws li kev kho cua sov tshwj xeeb ntawm lub raj xa dej tom qab ntau qhov txias txias (txias dov). Tom qab kev kho cua sov, nws yog straightened.