Dab tsi ua rau muaj qhov porosity hauv MIG vuam?

Thaum vuam, lub hom phiaj yog los tsim kom muaj kev sib txuas zoo thiab tsis muaj qhov sib txuas ntawm ob daim hlau. MIG vuam yog ib qho txheej txheem uas siv tau ntau yam uas siv tau los vuam ntau yam hlau sib txawv. MIG vuam yog ib qho txheej txheem zoo rau kev sib koom ua ke cov khoom siv. Txawm li cas los xij, yog tias siv qhov chaw tsis raug, qhov porosity tuaj yeem nkag mus rau hauv qhov vuam. Qhov no tuaj yeem ua rau muaj teeb meem nrog lub zog thiab kev ncaj ncees ntawm qhov vuam.

Hauv tsab xov xwm no, peb yuav los saib qee qhov ua rau muaj porosity hauv MIG welding thiab yuav ua li cas tiv thaiv nws.

Dab tsi ua rau muaj qhov porosity hauv MIG vuam?

Qhov porosity yog ib hom kev puas tsuaj ntawm kev vuam uas tuaj yeem tshwm sim hauv cov vuam. Nws zoo li cov qhov me me hauv qhov vuam thiab tuaj yeem ua rau qhov sib txuas ntawm ob daim hlau tsis muaj zog. Qhov porosity tuaj yeem tshwm sim los ntawm ntau yam, suav nrog:

1) Kev Sib Koom Ua Ke Tsis Tiav

Qhov no tshwm sim thaum lub vuam arc tsis yaj tag cov hlau tseem ceeb thiab cov khoom siv filler. Qhov no tuaj yeem tshwm sim yog tias lub tshuab vuam tsis tau teeb tsa rau qhov amperage raug lossis yog tias lub teeb vuam tsis tau tuav ze txaus rau cov hlau.

2) Kev Them Roj Tsis Zoo

Kev vuam MIG siv cov roj tiv thaiv los tiv thaiv qhov vuam ntawm cov pa oxygen thiab lwm yam kuab paug. Yog tias cov pa ntws tsawg dhau, qhov porosity tuaj yeem tshwm sim. Qhov no tuaj yeem tshwm sim yog tias lub tshuab tswj roj tsis teeb tsa kom raug, lossis yog tias muaj qhov xau hauv cov yeeb nkab roj.

3) Kev Ntshai Pa roj

Lwm yam ua rau muaj qhov porosity yog cov pa roj ntes tau. Qhov no tshwm sim thaum cov pa roj npuas raug ntes hauv lub pas dej vuam. Qhov no tuaj yeem tshwm sim yog tias lub teeb vuam tsis tau tuav ntawm lub kaum sab xis lossis yog tias muaj cov pa roj tiv thaiv ntau dhau.

4) Av thiab Cov Khoom Phem

Qhov porosity kuj tseem tuaj yeem tshwm sim los ntawm kev ua qias tuaj ntawm cov hlau tseem ceeb lossis cov khoom siv filler. Av qias neeg, xeb, xim, thiab lwm yam kab mob kuj tuaj yeem ua rau muaj porosity. Qhov no tuaj yeem tshwm sim yog tias cov hlau tsis huv ua ntej vuam, lossis yog tias muaj xeb lossis xim ntawm qhov chaw. Cov kab mob no tuaj yeem tiv thaiv qhov vuam los ntawm kev sib txuas zoo rau cov hlau.

5) Cov Pa Roj Tiv Thaiv Tsis Txaus

Lwm yam ua rau muaj qhov porosity yog cov roj tiv thaiv tsis txaus. Qhov no tuaj yeem tshwm sim yog tias siv cov roj tsis raug rau cov txheej txheem vuam lossis yog tias cov roj ntws tsis tau teeb tsa kom raug.

Koj Yuav Ua Li Cas Tiv Thaiv Qhov Porosity Kom Tsis Txhob Tshwm Sim Thaum Lub Sijhawm Vuam MIG?

Muaj ob peb yam uas koj ua tau los tiv thaiv kom tsis txhob muaj porosity thaum lub sijhawm vuam MIG:

1. Siv cov chaw teeb tsa kom raug: Xyuas kom tseeb tias koj siv cov chaw teeb tsa kom raug ntawm koj lub tshuab vuam. Tus amperage thiab voltage yuav tsum tau teeb tsa raws li cov lus qhia ntawm cov chaw tsim khoom.

2. Siv cov roj kom raug: Nco ntsoov siv cov roj kom raug rau koj txoj kev vuam. Argon feem ntau yog siv rau kev vuam MIG.

3. Kev ntws roj: Teem qhov nrawm ntawm kev ntws roj raws li cov lus qhia ntawm tus neeg tsim khoom. Cov roj ntau dhau lossis tsawg dhau tuaj yeem ua rau muaj qhov porosity.

4. Khaws lub teeb kom raug lub kaum sab xis: Nco ntsoov tuav lub teeb kom raug lub kaum sab xis kom tsis txhob muaj roj nkag. Lub teeb yuav tsum tuav ntawm lub kaum sab xis 10 txog 15-degree ntawm qhov chaw ntawm cov hlau.

5. Siv cov hlau huv: Nco ntsoov siv cov hlau huv, tsis muaj kuab paug rau koj qhov kev vuam. Txhua yam av qias neeg, xeb, lossis xim pleev rau ntawm qhov chaw tuaj yeem ua rau muaj qhov porosity.

6. Vuam rau hauv qhov chaw uas muaj cua nkag zoo: Vuam rau hauv qhov chaw uas muaj cua nkag zoo kom tsis txhob muaj roj nkag. Cov roj tiv thaiv tuaj yeem raug kaw rau hauv qhov chaw kaw.

Kev ua raws li cov lus qhia no yuav tiv thaiv tau qhov porosity. Los ntawm kev siv qhov chaw kom raug thiab vuam hauv qhov chaw uas muaj cua nkag zoo, koj tuaj yeem zam qhov teeb meem no.

Cov Kev Kho Mob Feem Ntau Rau Kev Kho Cov Qhov Vuam Porosity

Muaj ob peb txoj kev kho mob rau kev kho cov welds uas tau cuam tshuam los ntawm porosity:

1. Rov vuam dua: Ib qho kev kho mob uas siv ntau yog rov vuam dua qhov chaw uas raug mob. Qhov no ua tau los ntawm kev vuam hla qhov chaw uas raug mob nrog amperage siab dua.

2. Cov ntsaws qhov porosity: Lwm txoj kev kho mob uas siv ntau yog siv cov ntsaws qhov porosity. Cov no yog cov hlau me me uas muab tso rau saum cov qhov hauv qhov vuam. Cov ntsaws qhov porosity tuaj yeem yuav tau ntawm feem ntau cov khw muag khoom siv vuam.

3. Kev Sib Tsoo: Lwm txoj kev xaiv yog sib tsoo qhov chaw raug mob thiab rov vuam dua. Qhov no tuaj yeem ua tiav nrog lub tshuab sib tsoo tes lossis lub tshuab sib tsoo kaum sab xis.

4. Hlau vuam: Lwm txoj kev kho yog siv hlau vuam. Qhov no yog ib txoj hlau nyias uas siv los txhaws cov qhov hauv qhov vuam. Hlau vuam tuaj yeem yuav tau ntawm feem ntau cov khw muag khoom siv vuam.

Qhov porosity tuaj yeem kho tau los ntawm kev siv ib qho ntawm cov kev kho mob no. Los ntawm kev rov vuam thaj chaw lossis siv cov porosity plugs, koj tuaj yeem kho qhov teeb meem.