1. Txhawm rau tiv thaiv qhov yaig ntawm qhov muag vim muaj cua sov, lub vuam tam sim no yuav tsum tsis txhob loj dhau. Nws yog tsawg dua 20% tsawg dua cov pa roj carbon steel electrode. Lub arc yuav tsum tsis txhob ua kom ntev ntev. Lub interlayer txias yog ceev. Lub qhov nqaim weld nqaj yog haum.
2. Cov tawv tawv ntawm cov yeeb nkab steel fittings tom qab vuam yog qhov loj, uas yooj yim pom tshwm sim ntawm kev tawg. Yog tias nws tau welded nrog cov yeeb nkab tsis xeb stainless hlau fittings, preheating saum toj no 300 ℃ thiab kho txias txias ntawm 700 ℃ tom qab vuam yuav tsum tau ua. Yog tias qhov weldment tsis tuaj yeem ua tiav tom qab hlau txuas, cov yeeb nkab hlau stainless yuav tsum siv.
3. Stainless hlau yeeb fittings, txhawm rau txhim kho kev txhim kho corrosion thiab weldability, ntxiv cov nqi tsim nyog ntawm cov khoom tsis haum Ti, Nb, Mo, etc. Lub weldability zoo dua li tsis xeb hlau yeeb fittings. Thaum siv cov qub chromium stainless hlau electrode, nws yuav tsum tau preheated siab tshaj 200 ℃ thiab ntsuas kub ntawm 800 ℃ tom qab vuam. Yog tias cov hlau txuas tsis tuaj yeem raug kho, kev siv hluav taws xob chromium-nickel stainless hlau electrode yuav tsum siv.
4. Lub tshuab raj hlau stainless electrode muaj qhov ua tau zoo ntawm kev yaig thiab oxidation tsis kam, thiab dav siv hauv kev tsim tshuaj, tshuaj chiv, roj av, thiab tshuab kho tshuab.
5. Stainless hlau yeeb nkab fittings muaj titanium calcium hom thiab tsawg hom hydrogen. Titanium calcium hom tuaj yeem siv rau AC thiab DC, tab sis qhov nkag tob yog qhov ntiav thaum AC vuam, thiab nws kuj yooj yim rau liab, yog li DC lub zog hluav taws xob feem ntau saws.
6. Stainless hlau yeeb nkab fittings muaj qee yam corrosion tsis kam (oxidizing acid, organic acid, cavitation), tiv tshav kub kub thiab hnav tsis kam. Txhua yam ntaub ntawv siv rau kev tsim kho fais fab, kev lag luam chemical, roj av thiab lwm yam khoom siv. Lub weldability ntawm stainless hlau yeeb fittings yog pluag. Koj yuav tsum them sai sai rau cov txheej txheem vuam thiab xaiv cov vuam electrodes ua ntej kev kho cua sov.
7. Lub tshuab hluav taws xob yuav tsum tau qhuav thaum ua haujlwm. Titanium-calcium hom yuav tsum tau ziab ntawm 150 ℃ rau 1 teev, thiab hom qis-hydrogen yuav tsum tau qhuav ntawm 200-250 ℃ rau 1 teev (tsis tuaj yeem ziab dua thiab dua, txwv tsis pub cov txheej yuav yooj yim kom tawg thiab tev) Cov tawv nqaij oily thiab lwm yam paug tau siv los tiv thaiv tus hlau los ntawm kev ntxiv cov pa roj carbon thiab cuam tshuam rau qhov zoo ntawm qhov txuas ntawd.
8. Thaum siv cov hlau tsis muaj steel hlau, nws kho dua kom tsis txhob muaj cov npluas carbides, uas txo qhov kev txhim kho corrosion thiab cov tshuab ua haujlwm.
