Cov khoom siv raw rau kev tsim khoom ntawm peb cov hlau yog daim txhuam cev hlau (DRI). Nws yog yaj nyob rau hauv hluav taws xob arc rauv los ntawm txoj kev ntawm electrodes, tso cua sov los ntawm cov tshuaj tiv thaiv ntawm cov tshuaj Oxygen nrog cov pa roj carbon tam sim no nyob rau hauv tus nqi.
Thaum cov hlau nyob hauv lub xeev ua kua, nws raug thauj mus rau lub lauj kaub rauv taws (LMF) rau kev kho kom zoo, nyob ntawm qib ntawm cov hlau thiab cov lus thov.
Tom qab ntawd, qhov sib tov tuaj yeem dhau los ntawm cov txheej txheem degassing, nyob ntawm txoj kev xav tau (VD lossis RH Nqus Degassing) qhov twg ntau dhau thiab impurities (Sulphur, Carbon thiab Hydrogen) raug tshem tawm, solidifying cov hlau hauv daim ntawv slab hauv tshuab nruam casting. (MCC).
ASTM Txuj rau seamless steel yeeb nkab
|
Executive Standard |
Qib / Khoom siv |
npe khoom |
|
ASTM A53 |
A, B |
Dub thiab Kub-dipped Zinc-Coated Steel Pipes Welded thiab Seamless |
|
ASTM A106 1 |
A, B |
Seamless Carbon Steel rau Kev Pabcuam Kub Kub |
|
ASTM A179 Cov khoom lag luam |
Tsawg Carbon Steel |
Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger thiab Condenser Tubes |
|
ASTM A192 Cov Lus Qhia Tshwj Xeeb |
Tsawg Carbon Steel |
Seamless Carbon Steel Boiler Tubes rau Siab Siab |
| ASTM A 210 Cov Lus Qhia | A1, C | Seamless Medium-Carbon thiab Alloy Steel Boiler thiab Superheater Tubes |
| ASTM A 213 |
T5, T11, T12, T22 TP 347 H |
Seamless Ferritic thiab Austenitic Alloy Steel Boiler, Superheater thiab Kub-Exchanger Tubes |
| ASTM A 312 Cov Lus Qhia | TP304/304L, TP316/316L | Seamless Steel Yeeb Nkab rau Cov Khoom Siv Stainless |
| ASTM A333 Cov khoom lag luam | Gr.6 | Seamless thiab Welded Steel Yeeb Nkab rau Kev Pabcuam Kub Kub |
|
ASTM A335 Cov Lus Qhia Tshwj Xeeb |
Q9, Q11, Q22 |
Seamless Ferritic Alloy Steel Pipe rau Kev Pabcuam Kub Kub |
|
ASTM A519 Cov Lus Qhia Tshwj Xeeb |
4130, 4140 ib |
Seamless Carbon thiab Alloy Steel rau Mechanical Tubing |
| ASTM A789 Cov Lus Qhia Tshwj Xeeb | Seamless Ferritic / Austenitic Stainless Hlau Tubing rau General Service |
Q1: Qhov zoo li cas?
A: Kev tshuaj xyuas thib peb yeej ib txwm txais tos, xws li tuv. Tag nrho cov khoom yuav raug tso tawm nrog MTC thiab kaw los ntawm TPI
Nqe Lus Nug 2: Ntev npaum li cas rau kev xa khoom?
A: Yog tias cov khoom muaj nyob hauv Tshuag, feem ntau yog li ntawm 5 - 10 hnub. Yog tias cov khoom tsis nyob hauv Tshuag, nws yog 15 - 20 hnub. Kuj nyob ntawm qhov ntau.
Q3: Koj puas muab cov qauv? Dawb los tsis?
A: Yog, peb tuaj yeem muab cov qauv dawb, tab sis tsis them tus nqi thauj khoom.
Q4: Kuv puas tuaj yeem kho cov raj steel?
A: Tau kawg, peb tuaj yeem tsim nws raws li koj qhov yuav tsum tau ua, koj tuaj yeem xa CAD lossis kos duab kos duab.
Q5: Puas muaj cov kev pabcuam ntxiv?
A: Hmoov zoo, peb muaj kev paub ntau hauv kev lag luam no. Peb muab lub tsev rau khoom nrog cov khoom tsim nyog rau kev pleev xim sab hauv, txheej, yeeb nkab txiav, kev sib txuas welding thiab mechanical fabrication raws li xav tau.
Nqe Lus Nug 6: Cov nqe lus ua lag luam yog dab tsi?
A: exw, fob, cfr, cif, lc yuav raug txais.
Cim npe nrov: ca steel, tsum, customized, lag luam wholesale, pheej yig, luv nqi, daim ntawv teev nqi, luv nqi, Tshuag, dawb qauv
