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Nyob rau hauv cov txheej txheem ntawm cov roj crude cia thiab tsheb thauj mus los, vim muaj cov ntsiab lus sulfur siab nyob rau hauv cov roj crude, cov hlau zoo tib yam raug rau ntub H2S ib puag ncig rau lub sij hawm ntev, uas yog nquag hydrogen-induced tawg thiab hydrogen sulfide kev nyuaj siab corrosion cracking, faus ib loj kev nyab xeeb txaus ntshai rau kev nyab xeeb ntau lawm.
Nyob rau hauv teb rau cov teeb meem saum toj no, hydrogen-resistant steel tau dav siv nyob rau hauv loj domestic petrochemical, thermal zog, desulfurization ntauwd thiab lwm yam dej num vim nws zoo tsis kam mus hydrogen-induced cracking thiab sulfide kev nyuaj siab corrosion cracking. Cov qib sib xws yog 16MnR (HIC), Q345/Q355 (HIC), API 5L X52, ASTM A516 Gr.70 (HIC).
Tam sim no, Suav steel mills tau ua tiav kev ywj pheej ntawm hydrogen-resistant steel, ua tiav cov khoom siv txawv teb chaws. Nrog rau kev txhim kho me ntsis ntawm cov khoom siv petrochemical loj, txhawm rau txhim kho kev tsim khoom, kev ua lag luam xav tau cov khoom siv vuam zoo rau kev siv vuam ntau lawm. Peb lub tuam txhab tau tshaj tawm lub submerged arc vuam hlau thiab flux uas phim lub hauv paus hlau nrog zoo heev tsis kam mus rau hydrogen-induced cracking thiab sulfide kev nyuaj siab corrosion cracking.
Lub cev thiab tshuaj lom neeg cov khoom ntawm hydrogen-resistant steel submerged arc vuam hlau GWL-W10KHMSHA nrog flux GXL-121 tsim los ntawm peb lub tuam txhab yog raws li nram no:
qhia txog cov khoom
| Qeb | Khoom npe | Cov qauv ua raws |
| Vuam hlau | GWL-W10 KHMSHA | AWS A5.17 EH10K GB/T 5293 SU10 |
| Flux | GB/T 36037 SA FB1 ISO 14174 SA FB1 | |
| Nta | ||
| 1.Submerged arc vuam hlau thiab flux rau 490Mpa chav kawm hydrogen-resistant steel; 2. Cov hlau muaj pes tsawg leeg yog ntshiab, thiab PS impurity cov ntsiab lus yog tsawg 3. Fluorine-alkali flux, tsis tshua muaj impurity, haum pH, noj mus rau hauv tus account manufacturability thiab txhua yam khoom 4.HIC SSC xeem tuaj yeem ua tau raws li qhov yuav tsum tau ua | ||
Chemical Composition ntawm Vuam Hlau
| Category/Nmae | GWL-W10 KHMSHA | |
| Chemical Composition (wt%) | C | 0.045 ib |
| Mn | 1.05 Nws | |
| Si | 0.40 Nws | |
| P | 0.008 ib | |
| S | 0.003 ib | |
| Cu | 0.008 ib | |
| Mo | 0.20 ib | |
Tej yam muaj nuj nqis ntawm txhua yam khoom ntawm deposited hlau
| Category/Nmae | GWL-W10 KHMSHA TXL-121 | |
| Qauv xwm txheej | AW | 620 ℃ * 12h |
| Yield zog (Mpa) | 455 | 425 |
| tensile zog (Mpa) | 535 ib | 510 |
| Elongation (%) | 30.0 Nws | 29.5 Nws |
| -20 ℃ cuam tshuam KV2 (J) | 280 | 290 |
| HB | 180 | 170 |
Lub hydrogen-resistant steel submerged arc vuam hlau GWL-W10KHMSHA ua ke nrog flux GXL-121 tsim los ntawm peb lub tuam txhab tau zoo heev vuam workability. Kev ua haujlwm ntawm HIC thiab SSC tau dhau los ntawm kev tshuaj xyuas thib peb. Cov duab vuam thiab cov ntaub ntawv soj ntsuam tau pom nyob rau hauv daim duab hauv qab no:
Scrubber
Daim duab ntawm kev ua haujlwm vuam hauv qhov zawj
Ningbo Honest Hlau Khoom Co., Ltd. Hydrogen-resistant steel vuam consumables xws li hlau hmoov cored hlau, tes electrode, thiab khoom hlau, nrog ib tug ua tiav ntau yam thiab zoo heev kev ua tau zoo, uas yuav siv tau nyob rau hauv sib txawv welding txoj kev thiab nyob rau hauv ntau yam kev ua hauj lwm. Txais tos yuav.
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Post lub sij hawm: Feb-14-2023