Kev soj ntsuam ntawm hluav taws xob Resistivity nyob rau hauv nruab nrab zaus Inverter Spot Welding Machine

Hluav taws xob resistivity yog ib qho tseem ceeb tsis nyob rau hauv nruab nrab zaus inverter qhov chaw vuam tshuab, raws li nws txiav txim siab lub peev xwm ntawm cov ntaub ntawv los tiv thaiv cov ntws ntawm hluav taws xob tam sim no. Qhov tsab xov xwm no aims los soj ntsuam lub tswvyim ntawm hluav taws xob resistivity thiab nws qhov tseem ceeb nyob rau hauv lub ntsiab lus ntawm qhov chaw vuam ua hauj lwm siv nruab nrab zaus inverter tshuab.

1. Nkag siab txog Hluav Taws Xob Resistivity: Hluav taws xob tiv taus, qhia los ntawm lub cim ρ (rho), yog cov khoom vaj khoom tsev uas ntsuas nws qhov tsis kam mus rau qhov ntws ntawm hluav taws xob tam sim no. Nws yog txhais raws li qhov piv ntawm cov hluav taws xob teb siv thoob plaws ib yam khoom mus rau qhov tshwm sim hluav taws xob tam sim no ceev. Resistivity yog feem ntau ntsuas nyob rau hauv units ntawm ohm-meters (Ω·m) los yog ohm-centimeters (Ω·cm).
2. Qhov tseem ceeb ntawm Hluav Taws Xob Resistivity hauv Spot Welding: Hauv nruab nrab zaus inverter qhov chaw vuam tshuab, kev nkag siab txog hluav taws xob tiv thaiv ntawm cov khoom siv ua haujlwm yog qhov tseem ceeb rau ntau yam: a. Kev xaiv cov khoom siv: Cov khoom sib txawv muaj qhov sib txawv ntawm cov hluav taws xob tiv thaiv, uas tuaj yeem cuam tshuam cov txheej txheem vuam. Xaiv cov khoom siv nrog cov khoom siv sib xws ua kom muaj txiaj ntsig zoo tam sim no thiab tsim kom muaj cua sov zoo thaum vuam. b. Joule Cua sov: Qhov chaw vuam tso siab rau kev hloov pauv ntawm hluav taws xob hluav taws xob mus rau hauv tshav kub los ntawm cov cua sov tiv thaiv. Lub resistivity ntawm cov ntaub ntawv workpiece txiav txim siab npaum li cas ntawm tshav kub generated ntawm lub vuam taw tes, ncaj qha cuam tshuam weld zoo thiab lub zog. c. Thaum tshav kub kub Distribution: Variations nyob rau hauv resistivity tuaj yeem ua rau tsis zoo sib xws thaum tshav kub kub welding. Cov ntaub ntawv uas muaj qhov sib txawv ntawm qhov sib txawv tuaj yeem pom cov cua sov tsis sib xws, cuam tshuam rau qhov loj thiab cov duab ntawm cov weld nugget thiab muaj feem cuam tshuam rau kev sib koom ua ke. d. Kev Tiv Thaiv Kev Tiv Thaiv: Cov hluav taws xob tiv thaiv ntawm electrode-workpiece interface cuam tshuam rau kev tiv thaiv. Kev tiv thaiv siab dua tuaj yeem ua rau muaj kev tiv thaiv ntau ntxiv, cuam tshuam rau kev hloov pauv tam sim no thiab tsim hluav taws xob.
3. Cov yam ntxwv cuam tshuam rau hluav taws xob tiv thaiv: Ntau yam cuam tshuam rau hluav taws xob tiv thaiv ntawm cov khoom siv hauv qhov chaw vuam: a. Material Composition: Cov ntsiab lus muaj pes tsawg leeg thiab cov ntsiab lus impurity ntawm cov khoom cuam tshuam nws qhov kev tiv thaiv. Cov ntaub ntawv uas muaj impurity ntau dua feem ntau pom muaj zog dua. b. Kub: Hluav taws xob resistivity yog kub-nyob ntawm seb, nrog rau feem ntau cov ntaub ntawv qhia ib tug nce nyob rau hauv resistivity thaum kub nce. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xav txog qhov kev khiav hauj lwm kub thaum lub sij hawm qhov chaw welding kom raug ntsuam xyuas cov teebmeem resistivity. c. Grain Structure: Cov qauv nplej thiab crystalline kev npaj ntawm cov ntaub ntawv tuaj yeem cuam tshuam rau lawv cov hluav taws xob tiv taus. Cov ntaub ntawv zoo-grained feem ntau pom muaj kev tiv thaiv qis dua li cov ntaub ntawv coarse-grained. d. Alloying Elements: Qhov sib ntxiv ntawm cov ntsiab lus alloying tuaj yeem hloov cov hluav taws xob tiv thaiv ntawm cov ntaub ntawv. Cov txheej txheem sib txawv ntawm cov alloy tuaj yeem ua rau muaj qhov sib txawv ntawm qhov sib txawv, cuam tshuam cov txheej txheem vuam.

Kev nkag siab txog lub tswv yim ntawm hluav taws xob tiv thaiv thiab nws qhov tseem ceeb hauv nruab nrab zaus inverter qhov chaw vuam tshuab yog qhov tseem ceeb rau kev ua tiav qhov zoo tshaj plaws weld zoo thiab kev ua haujlwm. Los ntawm kev xav txog cov hluav taws xob tiv thaiv ntawm cov khoom siv ua haujlwm, cov tuam ntxhab tuaj yeem xaiv cov ntaub ntawv tsim nyog, tswj cov khoom siv hluav taws xob, txo qis kev sib cuag, thiab xyuas kom muaj txiaj ntsig zoo tam sim no thaum lub vuam txheej txheem. Qhov kev paub no txhawb kev tsim thiab kev ua haujlwm ntawm qhov chaw vuam tshuab, thaum kawg ua rau kev txhim khu kev qha thiab zoo welds hauv ntau daim ntawv thov kev lag luam.