1. Vim li cas thiaj muaj qhov pores nyob rau saum npoo ntawm flux-cored hlau weld?
Vim hais tias cov flux-cored vuam hlau yog ib tug tubular vuam hlau dov los ntawm ib tug nyias steel sawb, nws belongs rau ib tug seam welding hlau; Cov dej noo nyob rau hauv cov huab cua yuav nkag mus rau hauv cov tub ntxhais flux los ntawm qhov sib txawv, thiab cov welding flux yog ntub (tsis tuaj yeem qhuav), ua rau indentation pores nyob rau hauv weld.
2. Vim li cas thiaj muaj cov kev cai rau CO2 roj purity?
Feem ntau, CO2 roj yog cov khoom siv los ntawm kev tsim tshuaj lom neeg, thiab nws cov purity tsuas yog kwv yees li 99.6% /%. Nws muaj cov kab tsis huv thiab cov dej noo, uas yuav ua rau muaj qhov tsis xws luag xws li qhov pores rau qhov vuam. Vuam cov khoom tseem ceeb yuav tsum siv roj nrog CO2 purity Ntau dua lossis sib npaug li 99.8% ib xees, nrog cov pores tsawg dua hauv cov vuam, cov ntsiab lus tsis tshua muaj hydrogen, thiab cov khoom tawg zoo.
3. Vim li cas MAG welded pob qij txha muaj kev cuam tshuam ntau dua li CO2 welded pob qij txha?
Thaum lub sij hawm MAG welding, cov roj nquag tsuas yog 20%, qhov kev hloov pauv ntawm cov ntsiab lus ntawm cov hlau welding yog siab, thiab qhov cuam tshuam toughness ntawm vuam yog siab. Cov roj nquag ntawm CO2 vuam yog 100%, manganese thiab silicon alloy cov ntsiab lus nyob rau hauv vuam hlau yog ua ke nrog deoxidation, kev hloov pauv coefficient ntawm cov hlau alloy yog me ntsis qis, thiab qhov cuam tshuam toughness ntawm vuam tsis siab li ntawm MAG vuam. Xws li Tangshan Kobelco MG-51T vuam hlau (sib npaug rau ER50-6) nws qhov cuam tshuam toughness tus nqi ntawm chav tsev kub: MAG: 160J; CO2: 110 J.
4. Dab tsi yog flux-cored hlau?
Nws yog ib hom vuam hlau ua los ntawm dov ib tug nyias steel sawb rau hauv ib puag ncig steel yeeb nkab thiab sau nws nrog ib tug tej yam muaj pes tsawg leeg ntawm hmoov nyob rau tib lub sij hawm.
5. Vim li cas cov flux cored hlau tiv thaiv los ntawm CO2 roj?
Muaj ob hom flux-cored vuam hlau raws li txoj kev tiv thaiv: flux-cored gas-shielded vuam hlau thiab flux-cored nws tus kheej-shielded vuam hlau. Flux cored gas shielded vuam hlau feem ntau muaj kev tiv thaiv los ntawm CO2 roj, uas belongs rau daim ntawv ntawm cov roj sib xyaw ua ke thiab kev tiv thaiv slag, nrog kev tsim cov vuam zoo thiab cov khoom siv zoo heev.
6. Vim li cas thiaj muaj qhov pores nyob rau saum npoo ntawm flux-cored hlau weld?
Vim hais tias cov flux-cored vuam hlau yog ib tug tubular vuam hlau dov los ntawm ib tug nyias steel sawb, nws belongs rau ib tug seam welding hlau; Cov dej noo nyob rau hauv cov huab cua yuav nkag mus rau hauv cov tub ntxhais flux los ntawm qhov sib txawv, thiab cov welding flux yog ntub (tsis tuaj yeem qhuav), ua rau indentation pores nyob rau hauv weld.
7. Vim li cas thiaj muaj kev xav tau ntau dua rau kev ua kom huv ntawm argon?
A: Tam sim no muaj peb hom argon ntawm kev ua lag luam: argon zoo tib yam (txog 99.6% purity), argon ntshiab (li 99.9% purity), thiab high-purity argon (99.99% purity). Thawj ob tuaj yeem vuam carbon steel thiab stainless hlau; Cov hlau tsis-ferrous xws li txhuas alloys, titanium thiab titanium alloys yuav tsum siv high-purity argon; tsis txhob welding seams thiab tshav kub-tshem tawm tsam los ntawm oxidized thiab tsis tuaj yeem welded.
8. Vim li cas TIG vuam nozzles muaj ntau qhov ntau thiab tsawg?
Muaj 4-8﹟ tsib specifications ntawm nozzles, 4-5﹟ nozzles yuav siv tau rau vuam carbon steel, 6-7﹟ loj nozzles yuav tsum tau siv rau vuam stainless hlau thiab txhuas thiab txhuas alloys kom muaj zog kev tiv thaiv ntau yam ntawm welds thiab tshav kub cuam tshuam zones. Thaum vuam cov hlau tsis yog hlau xws li titanium thiab titanium alloys, 7-8﹟ loj nozzles yuav tsum tau siv los tiv thaiv qhov vuam thiab tshav kub cuam tshuam cheeb tsam los ntawm oxidized.
9. Cov kua qaub electrode yog dab tsi?
Cov electrodes uas muaj ntau cov kua qaub oxides nyob rau hauv txheej, xws li junction 422 (E4303), junction 502 (E5003) thiab lwm yam AC thiab DC electrodes.
10. Dab tsi yog alkaline electrode?
Electrodes uas muaj ntau alkaline oxides thiab fluorides nyob rau hauv txheej, xws li junction 507 (E5015), junction 506 (E5016) thiab lwm yam electrodes.
11. Dab tsi yog hom cellulose (rau downward vertical welding) electrode?
Cov electrodes uas muaj ntau cov organic tshuaj nyob rau hauv txheej yog tshwj xeeb yog siv rau downward ntsug vuam ntawm pipelines thiab nyias-phaj qauv.<1>Xws li E6010 (sib npaug rau E4310, J425G) yog tsim rau thaub qab vuam, vuam vuam thiab txhaws vuam.<2>E8010 (sib npaug rau E5511, J555) yog tsim rau thermal vuam, txhaws vuam thiab npog vuam. Feem ntau, qis hydrogen down electrode yog siv los npog vuam; E7048 (sib npaug rau J506X) weld tsos zoo nkauj thiab zoo nkauj.
12. Vim li cas cov electrode yuav tsum tau qhuav nruj me ntsis ua ntej vuam?
Lub vuam pas nrig feem ntau deteriorates cov txheej txheem kev ua tau zoo vim yog nqus noo noo, ua rau tsis ruaj tsis khov arc, nce spatter, thiab nquag ua rau qhov tsis xws luag xws li pores thiab tawg. Yog li ntawd, cov electrode yuav tsum tau qhuav nruj me ntsis ua ntej siv. Feem ntau, qhov ziab ntawm cov kua qaub electrode yog 150--200 degree, thiab lub sij hawm yog 1 teev; qhov ziab kub ntawm alkaline electrode yog 350--400 degree, thiab lub sij hawm ziab yog 1--2 teev. Tom qab ziab, muab tso rau hauv qhov cub ntawm 100--150 degree Sab hauv, coj raws li koj mus
