Ukukhiqiza Ukushisa kanye Nezici Ezithonya Emishinini Yokushisela I-Resistance Spot

I-Resistance spot welding iyinqubo yokujoyina esetshenziswa kakhulu ezimbonini ezahlukahlukene, okuhlanganisa ukukhiqiza izimoto, i-aerospace, kanye ne-electronics. Phakathi nenqubo yokushisela, ukushisa kukhiqizwa ngokungenakugwenywa, futhi lokhu kukhiqizwa kokushisa kungathinta kakhulu ikhwalithi nobuqotho be-weld. Kulesi sihloko, sizohlola izindlela zokukhiqiza ukushisa emishinini yokushisela indawo yokumelana futhi sihlole izici ezibalulekile ezithonya lokhu kuphuma kokushisa.

Izindlela Zokukhiqiza Ukushisa

Ku-resistance spot welding, izingcezu zensimbi ezimbili noma ngaphezulu zihlanganiswa ngokufaka ingcindezi kanye nokudlulisa amandla kagesi aphezulu ezindaweni zokuthintana. Ukushisa kukhiqizwa ngokuyinhloko ngenxa yalezi zindlela ezilandelayo:

1. Ukushisa Kokumelana: Njengoba ugesi kagesi ugeleza ngezingcezu zensimbi, ukumelana kwezinto kudala ukushisa. Lokhu kushisa kuhambisana ngokuqondile nokumelana kwezinto kanye nesikwele samanje esidlula kuzo, njengoba kuchazwe umthetho kaJoule.
2. Xhumana Nokumelana: Ukumelana nokuxhumana phakathi kwe-electrode kanye ne-workpiece nakho kunomthelela ekukhiqizeni ukushisa. Kuthintwa isimo esingaphezulu, ukuhlanzeka, nokucindezela okusetshenziswa endaweni yokuxhumana.
3. Ukulahlekelwa Kwe-Hysteresis: Ezintweni ze-ferromagnetic, njengensimbi, ukulahleka kwe-hysteresis kwenzeka ngenxa yezinguquko ezisheshayo zamandla kazibuthe odalwe i-current alternating. Lokhu kulahlekelwa kubangela ukukhiqizwa kokushisa okwengeziwe.

Izinto Ezithonya

Kunezici ezimbalwa ezingaba nomthelela kwinani lokushisa elikhiqizwa ekushiseleni indawo yokumelana:

1. I-Welding Yamanje: Ukwandisa i-welding current kuzoholela ekukhiqizeni ukushisa okuphezulu ngenxa yobudlelwane obuqondile phakathi kwamanje nokushisa.
2. I-Electrode Force: Amandla e-electrode aphezulu angakhuphula ukukhiqizwa kokushisa ngokuthuthukisa ukuthintana phakathi kwama-electrode nezinto zokusebenza.
3. I-Electrode Material: Ukukhethwa kwezinto ze-electrode kungaba nomthelela omkhulu ekukhiqizeni ukushisa. Ama-electrode enziwe ngezinto ezinokumelana nogesi okuphezulu, njengethusi, avame ukukhiqiza ukushisa okwengeziwe.
4. I-Workpiece Material: Ukumelana nogesi kwezinto zokusebenza kudlala indima ebalulekile ekukhiqizeni ukushisa. Izinto ezinokumelana okuphakeme, njengensimbi engagqwali, zikhiqiza ukushisa okuningi kunezinto ezinokumelana okuphansi, njenge-aluminium.
5. Isikhathi sokushisela: Izikhathi zokushisela ezinde zingaholela ekwandeni kokukhiqizwa kokushisa njengoba ukushisa kunesikhathi esengeziwe sokuqongelela kusixhumi esibonakalayo sokushisela.
6. Electrode Ithiphu Jiyomethri: Ukuma nesimo samathiphu e-electrode kuthinta ukumelana nokuxhumana, okubuye kube nomthelela ekukhiqizeni ukushisa.

Ku-resistance spot welding, ukuqonda izindlela zokukhiqiza ukushisa kanye nezici ezikuthonyayo kubalulekile ukuze kuzuzwe ukushisela kwekhwalithi ephezulu. Ngokulawula ngokucophelela amapharamitha afana ne-welding current, amandla e-electrode, nokukhethwa kwezinto ezibonakalayo, abakhiqizi bangakwazi ukuthuthukisa inqubo yokushisela ukuze bakhiqize amalunga aqinile futhi anokwethenjelwa kuyilapho benciphisa amandla okuba nokukhubazeka okubangelwa ukushisa okukhulu. Lolu lwazi lunomthelela ekusebenzeni kahle kanye nokusebenza kahle kwe-resistance spot welding ezinhlelweni ezahlukahlukene zezimboni.