Titanium Alloy Vuamyog ib qho ntawm txoj kev vuam.
Rau thicknesses nyob rau hauv 3 millimeters, tungsten inert roj vuam yog siv; Rau thicknesses tshaj 3 millimeters, roj roj hlau arc vuam ua haujlwm. Lub purity ntawm argon roj yuav tsum tsis pub tsawg dua 99.99%, thiab cov ntsiab lus ntawm huab cua thiab dej vapor hauv Argon roj yuav tsum nruj me ntsis tswj.
Ua ntej vuam, kev kho cov nplaim xws li kev tshem tawm roj, oxide tshem tawm thiab oxide tshem tawm yuav tsum tau nqa tawm. Vim yog cov tshuaj lom neeg zoo ntawm titanium thiab titanium alloys, lawv nquag kis los ntawm oxygen, nitrogen thiab hydrogen. Yog li ntawd, vuam txoj kev xws li Shielded hlau vuam, oxygen {{}} agding thiab atomic hydrogen vuam tsis tuaj yeem saws.
1) tus cawv ntawm oxygen thiab nitrogen:
Lub intersstitial daws ntawm oxygen thiab nitrogen nyob rau hauv titanium ua rau muaj kev cuam tshuam zoo, ua rau nws deformness thiab hardness, tab sis txo nws cov yas thiab tawv. Lub xub ntiag ntawm vuam oxygen thiab nitrogen hauv Weld Seam yog tsis txaus siab thiab yuav tsum zam kom ntau li ntau tau.
2) Cawv ntawm Hydrogen:
Qhov nce ntawm hydrogen yuav ua rau muaj kev cuam tshuam ntse ntawm titanium weld hlau, thaum lub plastity yuav txo me ntsis. Cov dej kas yuav ua rau brittleness ntawm kev sib koom ua ke.
3) Tus ntawm cov roj carbon:
Nyob rau hauv chav tsev kub, cov pa roj caranium dissolves nyob rau hauv daim ntawv ntawm cov interersting, zuj zus nws lub zog, tab sis tsis yog li oxygen thiab nitrogen. Thaum cov ntsiab lus carbon ntau dua nws solubility, nws ua nyuaj thiab faib rau hauv ib tus qauv network thiab muaj feem ntau tau tawg. Raws li cov qauv hauv tebchaws, cov pa roj carbon rau hauv titanium alloys yuav tsum tsis pub tshaj 0.1%. Thaum lub sij hawm vuam, roj stains ntawm welding hlau tuaj yeem nce cov ntsiab lus carbon, yog li lawv yuav tsum tau ntxuav kom huv si thaum vuam.
4) Qhov tsim ntawm stomata:
Feem ntau cov kev tsis sib xws nyob hauv lub vuam ntawm titanium thiab titanium alloys yog porosity, uas feem ntau tshwm sim ze ntawm txoj kab fusion. Hydrogen yog qhov tseem ceeb ua rau muaj kev tsim porosity. Thaum lub sij hawm vuam, titanium muaj lub zog muaj zog los nqus hydrogen, thiab raws li cov tee kub, lub solubility ntawm hydrogen loj txo qis. Yog li ntawd, cov hydrogen yaj nyob rau hauv cov kav hlau feem ntau tsis tuaj yeem khiav tawm hauv lub sijhawm, ua rau muaj qhov hws.
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