Kev hloov siab npaum li cas thaum lub sij hawm nruab nrab-Frequency Spot Vuam?

Mid-frequency spot welding, tseem hu ua medium-frequency resistance welding, yog cov txheej txheem siv dav hauv ntau qhov kev lag luam rau kev koom nrog cov khoom siv hlau.Thaum lub sij hawm welding txheej txheem, ntau yam tsis ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov zoo ntawm qhov vuam.Ib qho ntawm cov kev txwv no yog kev siv lub siab, uas muaj kev cuam tshuam tseem ceeb ntawm cov txheej txheem vuam thiab qhov ua rau lub zog sib koom ua ke.Hauv tsab xov xwm no, peb yuav tshawb xyuas qhov kev hloov pauv siab li cas thaum lub sijhawm nruab nrab ntawm qhov chaw vuam thiab nws cov teebmeem ntawm qhov vuam zoo.

Lub siab yog qhov tseem ceeb ntawm qhov chaw vuam, vim nws cuam tshuam rau kev sib cuag ntawm cov khoom ua haujlwm thiab cov electrodes, yog li cuam tshuam rau kev tsim hluav taws xob thiab cov khoom ntws.Hauv nruab nrab qhov chaw vuam, lub siab siv ntawm cov electrodes thiab cov khoom ua haujlwm tau hloov pauv tshwj xeeb thoob plaws lub voj voog vuam.

1. Kev Sib cuag: Raws li cov electrodes mus rau hauv lub workpieces, lub siab pib nce.Qhov kev sib cuag thawj zaug no ua kom muaj hluav taws xob zoo thiab tsim hluav taws xob tsim nyog ntawm qhov sib txuas vuam.
2. Compression Phase: Thaum cov electrodes sib cuag nrog cov workpieces, lub siab tseem nce ntxiv thaum cov electrodes compress cov ntaub ntawv ua ke.Lub sijhawm compression no yog qhov tseem ceeb rau kev tsim kom muaj ib qho chaw sib tiv tauj thiab txo qis qhov sib txawv ntawm huab cua uas tuaj yeem cuam tshuam rau qhov zoo ntawm qhov vuam.
3. Welding Tam sim no daim ntawv thov: Raws li kev siv vuam tam sim no, qhov kev tiv thaiv ntawm qhov sib txuas ua kom sov, ua rau cov khoom siv hauv zos melting.Thaum lub sij hawm no, lub siab yuav poob me ntsis vim cov softening ntawm cov ntaub ntawv thiab tsim cov molten nugget.
4. Tuav Phase: Tom qab lub vuam tam sim no raug tua, lub siab raug tswj xyuas lub sijhawm luv luv thaum lub sijhawm tuav.Cov theem no tso cai rau cov khoom molten kom solidify thiab tsim ib qho kev sib koom ua ke muaj zog.Lub siab ua kom cov solidification tshwm sim nrog kev sib raug zoo, txo qis distortion.
5. Theem cua txias: Raws li cov vuam sib txuas txias, lub siab tuaj yeem maj mam tso tawm.Txawm li cas los xij, qee qhov kev kub siab tseem yuav raug siv los tiv thaiv kev sib hloov lossis kev sib txawv los ntawm kev ua kom txias sai.

Qhov sib txawv ntawm qhov siab thaum lub sij hawm nruab nrab ntawm qhov chaw vuam txheej txheem ncaj qha cuam tshuam rau qhov zoo thiab kev ncaj ncees.Kev tswj xyuas kom zoo ua rau muaj cov hauv qab no:

1. Nugget Formation: Txoj cai siab ua kom cov khoom molten yog uniformly faib, tsim kom muaj zog thiab zoo ib yam weld nugget.Kev tsis txaus siab tuaj yeem ua rau cov pob txha tsis sib xws thiab cov pob qij txha tsis muaj zog.
2. Tsawg porosity: Txaus siab pab kom txo tau cov huab cua hauv hnab ris thiab cov voids hauv qhov vuam.Cov kev tsis zoo no tuaj yeem ua rau kev sib koom ua ke tsis muaj zog thiab txo nws lub peev xwm thauj khoom.
3. Txo Distortion: Kev tswj lub siab thaum lub sij hawm cua txias tiv thaiv kev cog lus sai thiab tom qab distortion ntawm cov khoom siv welded.
4. Txhim kho hluav taws xob thiab thermal conductivity: Qhov zoo tshaj plaws ua kom muaj kev sib cuag ntawm cov electrodes thiab workpieces, ua rau kev txhim kho hluav taws xob thiab thermal conductivity, uas ua rau muaj hluav taws kub zoo.

Nyob rau hauv lub realm ntawm nruab nrab zaus qhov chaw vuam, lub siab variation plays lub luag hauj lwm tseem ceeb hauv kev txiav txim siab zoo thiab kev ntseeg siab ntawm weld pob qij txha.Los ntawm kev sib cuag thawj zaug mus rau lub caij txias, kev tswj lub siab ua kom cov ntaub ntawv ntws zoo, tsim cov nugget, thiab kev sib koom ua ke.Cov neeg tsim khoom thiab cov neeg ua haujlwm vuam yuav tsum ua tib zoo saib xyuas thiab tswj cov kev ntsuas siab kom ua tiav qhov zoo sib xws thiab zoo welds, ua rau tag nrho cov qauv kev ncaj ncees ntawm cov khoom tsim.