Yim Ceev faj rau Stainless Hlau Vuam

1. Chromium stainless hlau muaj qee yam corrosion kuj (oxidizing acids, organic acids, cavitation), kub tsis kam, thiab hnav tsis kam. Feem ntau siv rau cov khoom siv xws li fais fab nroj tsuag, tshuaj, thiab roj av. Chromium stainless hlau muaj qhov tsis zoo weldability, thiab kev saib xyuas yuav tsum tau them rau cov txheej txheem vuam, kev kho cua sov, thiab lwm yam.

2. Chromium 13 stainless hlau muaj siab ncej weld hardening thiab yog nquag tawg. Yog tias tib hom chromium stainless hlau vuam pas nrig (G202, G207) yog siv rau vuam, preheating ntawm 300 ℃ lossis siab dua thiab kev kho cua txias ntawm ib ncig ntawm 700 ℃ tom qab vuam yuav tsum tau nqa tawm. Yog tias cov khoom siv welded tsis tuaj yeem raug kho tom qab vuam kub, chromium nickel stainless hlau vuam rods (A107, A207) yuav tsum tau siv.

3. Chromium 17 stainless hlau muaj weldability zoo dua li chromium 13 stainless hlau los ntawm kev ntxiv cov khoom ruaj khov xws li Ti, Nb, Mo, thiab lwm yam los txhim kho nws cov corrosion kuj thiab weldability. Thaum siv tib hom chromium stainless hlau vuam rods (G302, G307), preheating ntawm 200 ℃ los yog saum toj no thiab tempering kho ntawm ib ncig ntawm 800 ℃ tom qab vuam yuav tsum tau nqa tawm. Yog tias cov khoom siv welded tsis tuaj yeem kho cua sov, chromium nickel stainless hlau vuam rods (A107, A207) yuav tsum tau siv.

Thaum lub sij hawm vuam ntawm chromium nickel stainless hlau, rov ua cua sov tuaj yeem ua rau cov carbides, txo nws cov corrosion kuj thiab txhua yam khoom.

5. Chromium nickel stainless hlau vuam rods muaj corrosion kuj zoo thiab oxidation tsis kam, thiab yog dav siv nyob rau hauv tshuaj, chiv, roj av, thiab kev kho mob machinery manufacturing.

6. Chromium nickel stainless hlau txheej muaj titanium calcium hom thiab tsawg hydrogen hom. Titanium calcium hom yuav siv tau rau ob qho tib si AC thiab DC vuam, tab sis lub melting qhov tob yog ntiav thaum lub sij hawm AC vuam thiab nws yog feem ntau redness. Yog li, DC fais fab mov yuav tsum tau siv ntau li ntau tau. Txoj kab uas hla 4.0 thiab hauv qab no tuaj yeem siv tau rau txhua txoj haujlwm vuam, thaum txoj kab uas hla 5.0 thiab siab dua tuaj yeem siv rau kev sib tsoo thiab vuam fillet.

7. Vuam rods yuav tsum tau ceev kom qhuav thaum siv. Titanium calcium hom yuav tsum tau qhuav ntawm 150 ℃ rau 1 teev, thiab tsawg hydrogen hom yuav tsum tau qhuav ntawm 200-250 ℃ rau 1 teev (rov ua kom qhuav yog tsis pub, txwv tsis pub lub txheej yog nquag tawg thiab tev), tiv thaiv cov txheej. ntawm cov welding pas nrig los ntawm cov roj nplaum thiab lwm yam av, thiaj li tsis ua kom cov pa roj carbon ntau ntawm cov vuam thiab cuam tshuam rau qhov zoo ntawm qhov welded.

Txhawm rau tiv thaiv kev cuam tshuam los ntawm kev sib tsoo los ntawm cua sov, qhov vuam tam sim no yuav tsum tsis txhob siab dhau, kwv yees li 20% tsawg dua li ntawm cov hlau vuam rods. Lub arc yuav tsum tsis txhob ntev dhau, thiab cov txheej txheej inter-txheej yuav tsum tau txias sai sai. Nqaim weld hlaws yog nyiam.