Vuam electrodes ua lub luag haujlwm tseem ceeb hauv lub zog cia qhov chaw vuam tshuab, ua kom yooj yim hloov cov hluav taws xob tam sim no thiab tsim cov cua sov tsim nyog rau vuam. Txawm li cas los xij, dhau sij hawm, electrodes tuaj yeem hnav thiab degradation, cuam tshuam rau lawv cov kev ua tau zoo thiab vuam zoo. Kev nkag siab txog qhov ua rau ntawm electrode hnav yog qhov tseem ceeb rau kev siv cov kev tu thiab hloov cov tswv yim tsim nyog. Kab lus no tshawb txog cov yam tseem ceeb uas ua rau electrode hnav nyob rau hauv lub zog cia qhov chaw vuam tshuab, tso lub teeb rau ntawm cov laj thawj thiab cov kev daws teeb meem.
- Hluav taws xob Resistance thiab Thaum tshav kub kub Generation: Thaum lub sij hawm welding txheej txheem, high hluav taws xob tam sim no dhau los ntawm cov electrodes, generating tshav kub ntawm cov ntsiab lus ntawm kev sib cuag nrog cov workpieces. Qhov cua sov no tuaj yeem ua rau qhov ntsuas kub hauv cheeb tsam nce, ua rau thermal expansion thiab contraction ntawm cov electrodes. Kev rov ua cua sov thiab cua txias ua rau muaj kev ntxhov siab ntawm cov electrode nto, ua rau maj mam hnav, deformation, thiab cov khoom poob. Ntau dua vuam tam sim no thiab ntev vuam ntev tuaj yeem ua rau cov txheej txheem hnav no ntau dua.
- Mechanical Friction and Pressure: Vuam electrodes raug rau cov neeg kho tshuab quab yuam thaum lub vuam ua haujlwm. Lub siab siv rau cov electrodes, nrog rau txhua qhov kev txav los yog kev co ntawm cov electrodes thiab cov khoom ua haujlwm, tuaj yeem ua rau kev sib txhuam thiab txhuam. Qhov kev sib cuam tshuam ntawm cov khoom siv no tuaj yeem ua rau muaj kev puas tsuaj, yaig, thiab txawm tias tsim cov kab nrib pleb lossis chips ntawm electrode nto. Cov yam ntxwv xws li kev quab yuam ntau dhau, kev sib dhos tsis raug, lossis muaj cov kab mob tuaj yeem ua kom lub cev hnav no.
- Electrochemical Reactions: Hauv qee cov txheej txheem vuam, tshwj xeeb tshaj yog cov uas muaj cov hlau tsis sib xws lossis ib puag ncig corrosive, cov tshuaj tiv thaiv electrochemical tuaj yeem tshwm sim ntawm qhov chaw electrode. Cov tshuaj tiv thaiv no tuaj yeem ua rau electrode corrosion, pitting, lossis tsim oxides. Corrosion ua rau cov khoom siv electrode tsis muaj zog, ua rau nws yooj yim rau hnav thiab degradation. Cov yam ntxwv xws li kev xaiv cov khoom siv hluav taws xob tsis zoo lossis cov roj tiv thaiv tsis zoo tuaj yeem ua rau kom ceev electrochemical hnav.
- Cov kab mob sib kis thiab Oxidation: Cov kab mob, xws li av, roj, lossis cov dej ntws tawm, tuaj yeem sib sau ua ke ntawm electrode nto lub sijhawm. Cov kab mob no tuaj yeem cuam tshuam rau cov hluav taws xob thiab thermal conductivity ntawm cov electrodes, ua rau cov chaw kub hauv zos, cua sov tsis sib xws, thiab cov vuam tsis zoo. Tsis tas li ntawd, raug rau cov pa oxygen hauv qhov chaw vuam tuaj yeem ua rau oxidation ntawm electrode nto, tsim oxides uas txo cov conductivity thiab ua rau muaj zog, thaum kawg cuam tshuam rau kev ua tau zoo thiab lifespan ntawm cov electrodes.
Cov tswv yim txo qis: Txhawm rau hais txog electrode hnav hauv lub zog cia qhov chaw vuam tshuab, ntau lub tswv yim tuaj yeem ua haujlwm:
- Kev tshuaj xyuas tsis tu ncua thiab ntxuav cov electrodes kom tshem tawm cov kab mob thiab xyuas kom pom kev sib cuag.
- Kev xaiv cov khoom siv electrode kom zoo raws li daim ntawv thov vuam thiab cov khoom siv ua haujlwm.
- Ua raws li qhov tsim nyog shielding gases los yog coatings kom txo tau oxidation thiab electrochemical tshua.
- Optimizing vuam tsis, xws li tam sim no, lub sij hawm, thiab siab, kom txo tau kub thiab mechanical kev nyuaj siab ntawm cov electrodes.
- Lub sij hawm hloov ntawm hnav electrodes kom muaj qhov zoo sib xws thiab tiv thaiv kev puas tsuaj rau cov khoom ua haujlwm.
To taub qhov ua rau ntawm electrode hnav nyob rau hauv lub zog cia qhov chaw vuam tshuab yog ib qho tseem ceeb rau kev tswj kom zoo thiab zoo welding ua hauj lwm. Los ntawm kev txiav txim siab txog yam xws li hluav taws xob tsis kam, kev sib txhuam ntawm cov khoom siv hluav taws xob, cov tshuaj tiv thaiv electrochemical, thiab cov khoom paug, cov neeg ua haujlwm tuaj yeem siv cov kev tiv thaiv kev tiv thaiv thiab cov tswv yim txo kom ntev electrode lifespan thiab xyuas kom ntseeg tau qhov kev ua tau zoo weld. Kev saib xyuas tsis tu ncua, xaiv cov khoom tsim nyog, thiab ua raws li kev pom zoo vuam tsis yog qhov tseem ceeb rau kev txo qis electrode hnav thiab ua kom lub neej ntev ntawm cov electrodes hauv lub zog cia qhov chaw vuam tshuab.
Post lub sij hawm: Jun-12-2023
