MIG xov hlau ua lub luag haujlwm tseem ceeb hauv kev vuam niaj hnub. Yuav kom ua tiav cov txiaj ntsig zoo vuam, peb yuav tsum paub xaiv thiab siv MIG cov xov hlau kom raug.
Yuav xaiv MIG hlau li cas?
Ua ntej tshaj plaws, peb yuav tsum tau ua raws li cov khoom siv hauv paus, ntau hom khoom siv hauv paus txiav txim siab cov kev taw qhia ntawm kev xaiv hlau. Cov khoom siv hauv paus yog carbon steel, stainless hlau, aluminium alloy thiab lwm yam. Rau carbon steel, xaiv ntawmvuam hlauyuav tsum ua raws li nws lub zog theem. Cov hlau tsis muaj zog tsawg tuaj yeem xaiv cov pa roj carbon zoo tib yam vuam hlau, thaum lub zog siab carbon steel yuav tsum muaj zog dua hlau los xyuas kom meej qhov kev ua tau zoo tom qab vuam. Muaj ntau hom stainless hlau, suav nrog austenitic stainless hlau, ferritic stainless hlau, martensitic stainless hlau thiab lwm yam. Txhua qib stainless hlau muaj nws tus kheej tshwj xeeb tshuaj muaj pes tsawg leeg thiab cov yam ntxwv ntawm kev ua tau zoo, yog li koj yuav tsum xaiv cov hlau stainless hlau kom phim, txhawm rau xyuas kom meej tias qhov kev tiv thaiv corrosion thiab txhua yam khoom ntawm lub vuam yog raws li niam txiv cov khoom.
Tau kawg, qhov kev xav tau ntawm kev ua haujlwm vuam nrog peb nyob rau hauv qhov kev txiav txim siab, lub zog xav tau ntawm cov vuam yog ib qho tseem ceeb hauv kev xaiv cov hlau. Yog hais tias lub weld yuav tsum tiv taus siab loads, ces lub zog siab dua hlau yuav tsum tau xaiv. Qhov no ua kom ntseeg tau tias qhov sib txuas welded yuav tsis tawg thaum siv. Rau vuam nrog corrosion kuj yuav tsum tau, xws li workpieces siv nyob rau hauv hnyav ib puag ncig xws li tshuaj lom neeg kev lag luam thiab dej hiav txwv, nws yog tsim nyog los xaiv welding xov hlau nrog coj corrosion kuj. Yog hais tias lub welded workpiece yuav tsum muaj zoo toughness los yog tsawg-kub kev ua tau zoo, koj kuj yuav tsum tau ua tib zoo xaiv cov hlau tsim nyog kom tau raws li cov kev cai tshwj xeeb.
Qhov thib ob, peb yuav tsum txiav txim siab txoj kab uas hla. Kev xaiv ntawm txoj kab uas hla thiab vuam tam sim no, vuam txoj hauj lwm thiab cov ntaub ntawv hauv paus thickness yog ze ze. Feem ntau hais lus, qhov loj dua vuam tam sim no thiab cov khoom siv tuab dua yuav tsum siv cov hlau tuab. Qhov no yog vim cov xov hlau tuab tuaj yeem tiv taus cov dej ntws ntau dua thiab tseem muab cov hlau muab tub lim ntau dua kom ntseeg tau lub zog ntawm vuam. Nyob rau hauv kev sib piv rau nyias phaj welding, me me txoj kab uas hla feem ntau yog xaiv nyob rau hauv thiaj li yuav txo tau vuam cua sov input thiab tiv thaiv kub-los ntawm thiab distortion. Nyob rau hauv qhov sib txawv vuam txoj hauj lwm, nws tseem yuav tsum tau xaiv qhov tsim nyog txoj kab uas hla ntawm vuam hlau. Piv txwv li, nyob rau hauv txoj hauj lwm welding upward, vim yog qhov nyuaj ntawm kev ua haujlwm, txhawm rau pab txhawb kev ua haujlwm thiab ua kom cov vuam zoo, yuav tsum xaiv cov hlau nyias nyias.
Ntxiv rau qhov no, peb yuav tsum sib txuas cov txheej txheem vuam tsis sib xws hauv kev xaiv cov hlau, sib txawv MIG vuam txheej txheem tsis, xws li vuam tam sim no, qhov hluav taws xob, vuam ceev, thiab lwm yam, kuj tseem muaj feem cuam tshuam rau kev xaiv cov hlau. Yuav tsum ua raws li cov txheej txheem vuam tiag tiag los xaiv cov hlau tuaj yeem hloov kho rau cov kev txwv no. Nyob rau hauv cov ntaub ntawv ntawm kev kub ceev tam sim no thiab kev kub ceev vuam, nws yog ib qho tseem ceeb los xyuas kom meej tias cov hlau yuav yaj uniformly thiab tsim ib tug zoo weld nyob rau hauv lub high-ceev vuam txheej txheem. Nws yog ib qho tsim nyog los xaiv ib lub vuam hlau nrog zoo deposition zog thiab stability.
Nyob rau tib lub sijhawm, peb kuj yuav tsum xav txog cov khoom ruaj khov ntawm cov xaim thiab kev pab cuam tom qab muag. Xaiv lub npe ntawm cov hlau uas muaj lub koob npe zoo thiab cov khoom siv txhim khu kev qha kom ntseeg tau tias yuav tsis muaj qhov tsis txaus ntawm cov hlau hauv cov txheej txheem vuam. TANKII Alloy muaj ntau yam vuam hlau nrog ruaj khov zoo, yog tias koj xav tau, thov hu rau peb.
Tom qab ntawd dab tsi yog qhov ceev faj rau kev sivMIG welding hlau?
Thawj qhov uas yuav tsum tau hais yog hais txog cov cuab yeej siv, nws yog ib qho tseem ceeb uas yuav tau xaiv ib lub vuam haum rau MIG vuam. Kev ua tau zoo ntawm cov welder yuav tsum ruaj khov, thiab cov zis tam sim no thiab qhov hluav taws xob yuav tsum raug. Nyob rau tib lub sij hawm, xyuas kom meej tias cov welder yog zoo grounded los tiv thaiv electrocution. Kev ua haujlwm ib txwm muaj ntawm cov hlau pub mis yog tus yuam sij kom ntseeg tau tias vuam zoo. Lub tshuab pub hlau yuav tsum khiav zoo thiab lub siab ntawm cov xaim pub lub log yuav tsum nyob nruab nrab kom tsis txhob muaj cov xaim tsis ruaj tsis khov los yog xaim slippage. Tsis tas li ntawd, lub raj xaim pub mis yuav tsum tau ntxuav tsis tu ncua kom tsis txhob txhaws.
Kev xaiv cov roj tiv thaiv kuj tseem ceeb heev. Cov pa tiv thaiv feem ntau yog argon, helium lossis sib xyaw ntawm lawv. Nco ntsoov tias qhov purity ntawm shielding gas ua tau raws li qhov yuav tsum tau ua kom ntseeg tau tias vuam zoo. Kev kho kom tsim nyog ntawm kev tiv thaiv roj ntws tseem ceeb heev. Feem ntau hais lus, cov roj ntws yuav tsum tau hloov kho raws li qhov vuam tam sim no, txoj kab uas hla thiab vuam txoj hauj lwm thiab lwm yam. Ntxiv rau qhov txheej txheem vuam, txhawm rau ua kom muaj kev tiv thaiv roj zoo nyob ib puag ncig qhov chaw vuam, kom tsis txhob muaj cua nkag mus rau hauv lub pas dej molten.
Nws yuav tsum tau muab sau tseg tias peb feem ntau xaiv qhov tsim nyog MIG hlau raws li cov khoom, thickness thiab vuam yuav tsum tau ntawm lub hauv paus khoom. Txoj kab uas hla, tshuaj muaj pes tsawg leeg thiab txhua yam khoom ntawm vuam hlau yuav tsum phim cov khoom siv hauv paus. Peb yuav tsum kuaj xyuas qhov zoo ntawm cov vuam hlau ua ntej siv, thiab ntxuav nws yog tias muaj corrosion thiab roj. Tswj qhov ntev ntawm lub vuam hlau. Feem ntau hais lus, qhov ntev ntawm cov hlau yog li 10 npaug ntawm txoj kab uas hla ntawm cov hlau yog tsim nyog. Nthuav tawm qhov ntev ntawm qhov ntev yuav ua rau muaj zog tiv thaiv, kom cov hlau overheating, cuam tshuam qhov zoo ntawm vuam.
Tsis tas li ntawd, txoj haujlwm vuam sib txawv muaj qhov sib txawv ntawm cov txheej txheem vuam. Nyob rau hauv lub tiaj welding, ntsug welding, kab rov tav vuam thiab rov qab vuam txoj hauj lwm vuam, yuav tsum tau kho cov vuam tsis thiab kev khiav hauj lwm txoj kev los xyuas kom meej vuam zoo. Rau vuam ntawm qee cov ntaub ntawv xws li cov phaj tuab lossis cov pa roj carbon siab, yuav tsum tau preheating los tiv thaiv kev tawg. Nyob rau tib lub sijhawm, qhov kub ntawm interlayer yuav tsum tau tswj kom tsis txhob siab dhau lossis qis dhau. Thaum lub sij hawm vuam txheej txheem, slag thiab spatter rau saum npoo ntawm lub vuam yuav tsum tau muab ntxuav kom huv si nyob rau hauv lub sij hawm kom paub tseeb tias qhov zoo ntawm cov vuam thiab qhov kev vam meej ntawm cov vuam tom ntej.
Post lub sij hawm: Sep-02-2024