Tiv thaiv kev txhim kho kev txhim kho hauv cov hlau stainless hlau

Nkag siab thiab tiv thaiv kev sib cuam tshuam corrosion hauv stainless hlau welds

Cov lus piav qhia: Kawm txog kev txhim kho hauv nruab nrab hauv cov hlau stainless hlau, nws cov laj thawj, kev tiv thaiv cov kev kho mob, thiab qhov tseem ceeb ntawm kev kho cov tshuaj daws teeb meem. Txhim kho Weld Zoo thiab Ntev.

Taw qhia:

Vuam yog ib txoj kev tseem ceeb hauv kev koom nrog stainless hlau Cheebtsam, tshwj xeeb yog hauv kev tsim cov roj welded. Txawm li cas los xij, weld tsis xws luag, tshwj xeeb ntawm Weld qhov chaw, tuaj yeem cuam tshuam kev ncaj ncees thiab kev ua tau zoo ntawm cov khoom kawg. Ib qho tseem ceeb qhov teeb meem yog intergranular corrosion, ib daim ntawv ntawm cov cheeb tsam corrosion uas tuaj yeem ua rau kev puas tsuaj loj.

Dab tsi yog intergranular corrosion?

Intergranular corrosion tshwm sim hauv cov avustenitic stainless hlau nrog ib qho cov pa roj carbon ntau dua 0.03%. Thaum rhuab ntawm 425-815 ℃ lossis maj mam txias los ntawm qhov kub thiab txias, chromium carbides nag ntawm cov ciaj ciam. Qhov depetion no ntawm chromium nyob rau hauv cov nplej ciam teb ua rau cov hlau raug mob rau corrosion nyob rau hauv kev sib zog ib puag ncig. Nyob rau hauv kev ntxhov siab, cov hlau tuaj yeem tsoo ntawm cov ciaj ciam tsis muaj zog, ua rau muaj lub zog tseem ceeb thiab corrosion tsis kam.

Yam ua rau muaj kev cuam tshuam rau intergranular corrosion:

• Cov ntsiab lus carbon siab: nce qib carbon qib hauv cov hlau txhawb kev tsim cov chromium carbides.

• Raug nthuav dav: ntev raug rau cov rhiab heev kub (425-815 ℃) thaum lub sijhawm kho cua sov.

• Corrosive ib puag ncig: raug rau cov xov xwm nruj, xws li cov kua qaub lossis chlorides, nrawm ntawm txoj kev corrosion.

Kev Tiv Thaiv Txoj Kev:

1. Tshuaj lom neeg muaj pes tsawg leeg tshuaj tswj:

• Ntxiv cov stabilizing ntsiab xws li titanium lossis niobium los khi nrog carbon, tiv thaiv chromium carbide tsim.

• Siv cov hlau roj tsawg roj (piv txwv li, 304L, 316L) nrog cov ntsiab lus carbon 0.03%.

• Kho cov tshuaj lom neeg muaj pes tsawg leeg ntawm Weld kom nce Chrome txoj kab ntsig ntau.

2. Vuam txheej txheem Optimization:

• Tsawg kawg cov lus qhia thiab tswj cov tshav kub-cuam tshuam rau kev cuam tshuam nrog kub (Hz).

• Ua haujlwm nrawm vuam thiab cov txheej txheem txias kom txo lub sijhawm siv nyob rau hauv qhov rhiab heev.

3. Ci teeb meem kev kho mob:

• Cov txheej txheem kev kho cua sov no cuam tshuam cov cua sov sai heev rau qhov kub thiab txias kom txias rau nws kom sai sai.

• Piv txwv li, Henga technology cov cuab yeej online sai sai thiab txias cov cua sov thiab hydrogen-cooled graphite rau kev hloov cua sov muaj txiaj ntsig.

Qhov tseem ceeb ntawm kev teeb meem kev daws teeb meem:

Txoj kev kho cov tshuaj kaj nrig yog qhov tseem ceeb rau kev tsim cov khoom lag luam zoo welded kav. Nws tau tshem tawm qhov kev pheej hmoo ntawm intergranular corrosion los ntawm kev ua kom muaj kev faib tawm homogeneous faib ntawm cov hlau micructure. Cov txheej txheem no tshwj xeeb tshaj nyob rau hauv cov ntawv thov uas stainless hlau yog nthuav tawm ib puag ncig corrosive lossis raug rau kev ntxhov siab.

Xaus:

Nkag siab thiab tiv thaiv kev sib txuam corrosion yog qhov tseem ceeb rau kev ua kom muaj kev sib zog thiab kev ntseeg tau ntawm cov hlau stainless hlau. Los ntawm kev tswj hwm cov tshuaj muaj pes tsawg leeg, ua kom zoo dua vuam cov txheej txheem kev kho mob, thiab cov chaw tsim khoom muaj peev xwm txo qhov kev pheej hmoo ntawm kev cuam tshuam ntawm corrosion.

Cov ntsiab lus: Kev tiv thaiv corrosion, stainless hlau welds, ci txheej txheem kev kho mob, kev tiv thaiv zoo, kev tiv thaiv corrosion, welded kav.