Mid-frequency spot welding yog ib qho kev siv dav hauv kev lag luam hauv ntau lub lag luam, tab sis nws tuaj yeem ntsib teeb meem xws li tawg hauv cov pob qij txha welded. Nkag siab qhov ua rau ntawm cov kab nrib pleb no yog qhov tseem ceeb rau kev txhim kho qhov zoo thiab kev ntseeg siab ntawm cov khoom siv welded. Hauv tsab xov xwm no, peb yuav tshawb txog cov laj thawj feem ntau tom qab tawg hauv nruab nrab qhov chaw vuam thiab sib tham txog cov kev daws teeb meem los txo cov teeb meem no.
- Kev xaiv khoom: Feem ntau, kev tawg tuaj yeem raug ntaus nqi los ntawm kev xaiv cov khoom siv welded. Thaum cov hlau tsis sib xws lossis cov khoom siv nrog qhov sib txawv tseem ceeb hauv thermal expansion coefficients yog welded ua ke, qhov sib koom ua ke yuav raug cuam tshuam rau kev tawg thaum lub caij txias. Txhawm rau daws qhov teeb meem no, nws yog ib qho tseem ceeb uas yuav tau xaiv cov ntaub ntawv uas sib xws ntawm cov khoom muaj pes tsawg leeg thiab thermal zog.
- Vuam Parameters: Cov vuam tsis sib xws lossis tsis raug, xws li vuam tam sim no, lub sijhawm vuam, thiab lub zog electrode tuaj yeem ua rau tawg. Thaum cov kev ntsuas tsis raug teeb tsa kom raug, cov khoom siv hluav taws xob thiab kev faib tawm yuav tsis sib npaug, ua rau muaj kev ntxhov siab ntau ntxiv uas txhawb kev tawg. Kev saib xyuas tsis tu ncua thiab calibration ntawm cov khoom siv vuam tuaj yeem pab tswj qhov kev pom zoo.
- Kev npaj ua ke tsis tsim nyog: Qhov zoo ntawm kev sib koom ua ke ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov kab nrib pleb. Kev tu tsis zoo thiab kev sib koom ua ke tuaj yeem cuam tshuam cov impurities lossis tsim qhov khoob hauv qhov chaw vuam, ua rau tawg. Kev sib koom ua ke kom zoo, suav nrog kev tu thiab kev sib raug zoo, yog qhov tseem ceeb los xyuas kom muaj suab nrov.
- Residual Stress: Vuam qhia txog kev ntxhov siab nyob rau hauv cov khoom siv, uas tuaj yeem ua rau tawg thaum lub sijhawm. Kev kho cua sov tom qab vuam lossis kev ntxhov siab tuaj yeem tsim nyog los txo cov kev ntxhov siab uas seem thiab txhim kho qhov kev ncaj ncees.
- Hydrogen embrittlement: Hydrogen qhia thaum lub sij hawm welding txheej txheem tuaj yeem permeate cov hlau thiab ua rau nws yooj yim rau tawg. Txhawm rau tiv thaiv qhov no, kev ziab kom qhuav ntawm cov electrodes thiab khaws cov ntaub ntawv hauv qhov chaw qhuav tuaj yeem pab tiv thaiv hydrogen embrittlement.
- Kev Tswj Xyuas Zoo: Kev tswj tsis tau zoo thaum lub sij hawm vuam txheej txheem tuaj yeem ua rau tsis pom qhov tsis zoo uas tom qab ntawd ua rau tawg. Kev tshuaj xyuas tsis tu ncua, kev sim tsis muaj kev puas tsuaj, thiab cov txheej txheem kev pov hwm zoo yog qhov tseem ceeb rau kev txheeb xyuas thiab daws cov teeb meem tshwm sim thaum ntxov.
- Vuam Tshuab: Cov txheej txheem vuam nws tus kheej kuj tuaj yeem cuam tshuam qhov tshwm sim ntawm kev tawg. Kev tso cov electrode kom raug, vuam ntu ntu, thiab kev tswj qhov kub thiab txias yog qhov tseem ceeb rau kev ua tiav cov vuam zoo uas tsis tshua muaj kev tawg.
Hauv kev xaus, kev nkag siab txog yam uas ua rau muaj kev tawg ntawm qhov nruab nrab ntawm qhov chaw vuam yog qhov tseem ceeb rau kev tiv thaiv qhov teeb meem no thiab ua kom ntseeg tau qhov kev ntseeg ntawm cov khoom siv welded. Ua tib zoo xaiv cov khoom siv, cov vuam tsis sib xws, kev sib koom ua ke tsim nyog, kev tswj hwm kev ntxhov siab, thiab kev mob siab rau kev tswj hwm zoo yog txhua yam tseem ceeb hauv kev ua tiav cov welds tsis tawg. Los ntawm kev hais txog cov xwm txheej no, cov tuam ntxhab tuaj yeem tsim cov welds uas ua tau raws li cov qauv siab tshaj plaws ntawm kev ua tau zoo thiab kav ntev.
Post lub sij hawm: Oct-31-2023
