Puas yuav tsum tau ntxiv cov roj tiv thaiv ntxiv thaum vuam? Peb Yuav Tsum Siv Argon lossis Nitrogen?

Kev tiv thaiv roj ntxiv feem ntau yuav tsum tau ua thaum vuam, uas feem ntau ua haujlwm los tiv thaiv cov hlau tee, vuam pas dej ua ke, thiab cov hlau kub kub hauv qhov chaw vuam los ntawm kev cuam tshuam los ntawm cov pa phem los ntawm sab nraud, tiv thaiv oxidation ntawm weld seam thaum lub sij hawm vuam, tiv thaiv kev tsim ntawm qhov hws, thiab xyuas kom muaj kev ncaj ncees ntawm weld seam; Nws tseem tuaj yeem tiv thaiv lub lens tsom los ntawm cov hlau vapor muaj kuab paug thiab txaws cov kua dej. Txawm li cas los xij, kuj tseem muaj qee txoj kev vuam uas tsis tas yuav muaj cov roj thaiv thaiv, xws li tus kheej tiv thaiv flux cored hlau arc vuam. Lub flux core nyob rau hauv lub vuam hlau yuav tsim shielding roj thiab slag thaum lub sij hawm vuam txheej txheem los tiv thaiv qhov vuam cheeb tsam; Kuj tseem muaj qee qhov kev tiv thaiv vuam xws li qhov chaw vuam, uas feem ntau tsis tas yuav muaj roj tiv thaiv ntxiv.

Raws li seb yuav xaiv argon lossis nitrogen, nws nyob ntawm cov khoom siv vuam sib txawv thiab cov txheej txheem. Cov hauv qab no yog cov xwm txheej tshwj xeeb:

Argon

1. Vuam stainless hlau: Argon roj yog ib qho kev tiv thaiv roj ntau hauv stainless hlau vuam. Ntshiab argon yog tsim rau tungsten inert gas welding (TIG) ntawm stainless hlau, tab sis nyob rau hauv cov roj hlau arc vuam (MIG) siv cov ntshiab argon ib leeg, qhov nro ntawm stainless hlau droplets thiab molten pas dej ua ke yog siab, lub fluidity ntawm cov kua hlau tsis zoo, thiab cov weld tsim tsis zoo. Feem ntau, 1-2% oxygen yog ntxiv rau cov roj argon kom txo qhov nro ntawm qhov chaw, txhim kho cov dej ntws tawm, thiab ua kom lub vuam seam tsim kom zoo nkauj; Los ntawm kev ntxiv 2-5% CO ₂, arc stability yog qhov zoo, oxidation raug txo, cov ntsiab lus alloy raug hlawv tsawg dua, thiab tsis muaj kev xav kom cov pa roj carbon ntau. Nws yog tsim rau TIG hauv qab vuam thiab MAG filling npog vuam ua ke txheej txheem rau stainless hlau kav.

2. Vuam aluminium alloys: Aluminium alloy GMAW feem ntau siv Ar raws li cov roj tiv thaiv, uas yuav tsum tau muaj roj purity siab, txwv tsis pub cov oxides dub yuav tshwm sim ntawm ob sab ntawm lub vuam. Yog tias koj xav ua kom cov vuam nkag mus thiab nrawm, koj tuaj yeem ntxiv qee qhov kev faib ua feem ntawm Nws rau Ar, tab sis yog tias qhov feem pua ​​​​ntawm Nws loj dhau, yuav muaj ntau dua splashing.

3. Vuam tooj liab thiab tooj liab alloys: Ntshiab Ar yuav siv tau raws li cov vuam shielding roj.

4. Vuam npib tsib xee thiab npib tsib xee alloys: Ntxiv rau kev siv cov ntshiab Ar thiab Ar + Nws raws li vuam shielding gases, ib qho me me ntawm hydrogen kuj tuaj yeem ntxiv rau Ar roj los txhim kho vuam efficiency.

5. Vuam titanium thiab titanium alloys: Vim muaj kev sib raug zoo ntawm titanium thiab N, H, thiab O, ntshiab Ar thiab Ar + Nws tsuas yog siv los ua vuam shielding gases rau GMAW ntawm titanium thiab titanium alloys.

Nitrogen

1. Vuam stainless hlau: Nitrides tsim los ntawm cov tshuaj tiv thaiv ntawm nitrogen thiab stainless hlau tuaj yeem txhim kho lub zog ntawm kev sib koom ua ke thiab txhim kho cov khoom siv ntawm lub vuam. Yog li ntawd, nitrogen tuaj yeem siv los ua cov roj tiv thaiv thaum vuam stainless hlau, tab sis feem ntau nws tsis yog siv ib leeg thiab sib xyaw nrog argon thiab lwm yam roj.

2. Vuam tooj liab thiab tooj liab alloys: Thaum vuam tooj liab thiab tooj liab alloys, ib qho kev faib ua feem ntawm nitrogen tuaj yeem ntxiv rau Ar gas kom txo cov nqi tsim khoom, tab sis tej zaum yuav muaj qee qhov txaws thiab pa taws, ua rau tsis zoo.

Yog tias koj xav tau lub tshuab vuam, thov hu rau Ms. Zhao

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