Resistance chaw welding yog ib qho kev sib koom ua ke hauv ntau yam kev lag luam, suav nrog tsheb, aerospace, thiab hluav taws xob tsim khoom.Thaum lub sij hawm welding txheej txheem, cua sov yog inevitably generated, thiab no tshav kub ntau lawm yuav ho cuam tshuam qhov zoo thiab kev ncaj ncees ntawm cov welding.Hauv tsab xov xwm no, peb yuav tshawb xyuas cov txheej txheem tsim hluav taws xob nyob rau hauv qhov chaw vuam tshuab thiab tshuaj xyuas cov ntsiab lus tseem ceeb uas cuam tshuam rau qhov tso tawm thermal.
Thaum tshav kub kub Generation Mechanisms
Nyob rau hauv qhov chaw welding, ob los yog ntau tshaj hlau workpieces tau koom ua ke los ntawm kev siv lub siab thiab dhau ib qho hluav taws xob tam sim no los ntawm cov ntsiab lus sib cuag.Thaum tshav kub kub yog tsim los ntawm cov mechanisms hauv qab no:
- Ua kom sov: Raws li cov hluav taws xob tam sim no ntws los ntawm cov khoom hlau, cov khoom siv hluav taws xob ua kom sov.Cov cua sov no ncaj qha ncaj qha rau qhov tsis kam ntawm cov ntaub ntawv thiab cov square ntawm tam sim no dhau los ntawm lawv, raws li tau piav qhia los ntawm Joule txoj cai.
- Tiv tauj Resistance: Kev tiv thaiv kev sib cuag ntawm cov electrode thiab cov khoom ua haujlwm kuj tseem ua rau muaj kev kub ntxhov.Nws raug cuam tshuam los ntawm qhov chaw saum npoo av, kev huv huv, thiab kev siv siab ntawm qhov chaw sib cuag.
- Hysteresis Loss: Nyob rau hauv cov ntaub ntawv ferromagnetic, zoo li hlau, hysteresis poob tshwm sim vim qhov kev hloov pauv sai hauv cov hlau nplaum lub zog vim yog qhov hloov pauv tam sim no.Qhov kev poob no ua rau muaj cua sov ntxiv.
Muaj feem cuam tshuam
Muaj ntau yam tuaj yeem cuam tshuam qhov kub ntawm qhov tsim tawm hauv qhov chaw vuam:
- Vuam tam sim no: Ua kom cov vuam tam sim no yuav ua rau muaj hluav taws kub ntau dua vim muaj kev sib raug zoo ntawm cov tam sim no thiab cov cua sov.
- Electrode Force: Lub zog hluav taws xob ntau dua tuaj yeem ua kom cov cua sov ntau ntxiv los ntawm kev txhim kho kev sib cuag ntawm cov electrodes thiab cov khoom ua haujlwm.
- Cov khoom siv hluav taws xob: Kev xaiv cov khoom siv hluav taws xob tuaj yeem cuam tshuam rau kev tsim hluav taws xob.Cov hluav taws xob ua los ntawm cov khoom siv hluav taws xob ntau dua, xws li tooj liab, nyiam ua kom muaj cua sov ntau dua.
- Khoom siv ua haujlwm: Cov hluav taws xob tsis kam ntawm cov khoom siv ua haujlwm ua lub luag haujlwm tseem ceeb hauv kev tsim hluav taws xob.Cov ntaub ntawv uas muaj kev tiv thaiv siab dua, zoo li cov hlau tsis muaj steel, tsim kom muaj cua sov ntau dua li cov ntaub ntawv uas tsis muaj zog, xws li txhuas.
- Lub sijhawm vuam: Lub sij hawm vuam ntev tuaj yeem ua rau muaj kev kub ntxhov ntau ntxiv vim tias cov cua sov muaj sij hawm ntau ntxiv ntawm qhov sib txuas.
- Electrode Tip Geometry: Cov duab thiab cov xwm txheej ntawm cov lus qhia electrode cuam tshuam rau kev tiv thaiv kev tiv thaiv, uas ua rau muaj kev cuam tshuam rau kev tsim hluav taws xob.
Nyob rau hauv qhov chaw vuam tsis kam, nkag siab txog cov txheej txheem ntawm kev tsim hluav taws xob thiab cov yam ntxwv cuam tshuam nws yog qhov tseem ceeb rau kev ua tiav cov khoom zoo welds.Los ntawm kev ua tib zoo tswj tsis tau xws li vuam tam sim no, electrode quab yuam, thiab xaiv cov khoom siv, cov tuam ntxhab tuaj yeem ua kom zoo dua cov txheej txheem vuam los tsim cov pob qij txha muaj zog thiab txhim khu kev qha thaum txo qis qhov cuam tshuam los ntawm cov cua sov ntau dhau.Qhov kev paub no pab txhawb rau tag nrho cov kev ua tau zoo thiab kev ua tau zoo ntawm qhov chaw vuam nyob rau hauv ntau yam kev siv.
Post lub sij hawm: Sep-25-2023