Uhlalutyo lwe-Resistivity yoMbane kwi-Medium Frequency Inverter Spot Welding Machines

Ukuxhathisa kombane yiparameter ebalulekileyo kumatshini wokuwelda we-inverter kwindawo ephakathi, njengoko imisela isakhono semathiriyeli ukuxhathisa ukuhamba kombane wangoku. Eli nqaku lijolise ekuhlalutyeni ingcamango yokumelana nombane kunye nokubaluleka kwayo kumxholo wemisebenzi ye-welding ye-spot usebenzisa oomatshini be-inverter abaphakathi.

1. Ukuqonda ukuxhathisa koMbane: Ukuxhathisa kombane, okuchazwe ngesimboli ρ (rho), yipropati yezinto eziphathekayo ezilinganisa ukuchasana kwayo nokuhamba kwamandla ombane. Ichazwa njengomlinganiselo wommandla wombane osetyenziswa kuyo yonke into kwisiphumo soxinaniso lwangoku lombane. Ukuxhathisa ngokuqhelekileyo kulinganiswa ngeeyunithi ze-ohm-imitha (Ω·m) okanye ohm-centimeters (Ω·cm).
2. Ukubaluleka kokuxhathisa koMbane kwi-Spot Welding: Kwi-medium frequency inverter spot welding machines, ukuqonda ukuxhathisa kombane kwezixhobo zokusebenza kubalulekile ngenxa yezizathu ezininzi: a. Ukukhethwa kwezinto eziphathekayo: Izinto ezahlukeneyo zineendlela ezahlukeneyo zokumelana nombane, ezinokuchaphazela inkqubo ye-welding. Ukukhetha izinto ezinokuxhathisa ezihambelanayo kuqinisekisa ukuhamba ngoku ngokufanelekileyo kunye nokuveliswa kobushushu obufanelekileyo ngexesha le-welding. b. Ukufudumeza kweJoule: I-spot welding ixhomekeke ekuguquleni amandla ombane abe bubushushu ngokufudumeza okuxhathisayo. I-resistantivity yezixhobo zokusebenza inquma ubungakanani bobushushu obuveliswa kwindawo yokutshisa, ngokuthe ngqo kuchaphazela umgangatho we-weld kunye namandla. c. Ukusasazwa kobushushu: Ukwahluka kwi-resistivity kunokukhokelela ekusasazweni kobushushu obungafaniyo ngexesha le-welding yendawo. Izinto eziphathekayo ezinobunzima obuhlukeneyo zinokubonisa ukufudumeza okungalinganiyo, okuchaphazela ubungakanani kunye nokuma kwe-weld nugget kunye nokunciphisa ingqibelelo edibeneyo. d. Ukuchasana noQhagamshelwano: Ukuxhathisa kombane kwi-electrode-workpiece interface ichaphazela ukuchasana noqhagamshelwano. Ukumelana okuphezulu kunokubangela ukwanda koqhagamshelwano, okuchaphazela ukutshintshwa kwangoku kunye nokuveliswa kobushushu.
3. Izinto ezichaphazela ukuxhathisa koMbane: Izinto ezininzi zinempembelelo kwi-resistivity yombane yezinto ezisetyenziselwa ukuwelda indawo: a. Ukubunjwa kweMathiriyeli: Ukuqulunqwa kwe-elemental kunye nomxholo ongcolileyo wezinto eziphathekayo kuchaphazela kakhulu ukumelana kwayo. Izinto ezinamanqanaba aphezulu okungcola zibonisa ukuqina okuphezulu. b. Ubushushu: Ukuxhathisa kombane kuxhomekeke kwiqondo lokushisa, kunye nezixhobo ezininzi ezibonisa ukunyuka kwe-resistivity njengoko ubushushu buphakama. Ke ngoko, kubalulekile ukuqwalasela ubushushu bokusebenza ngexesha le-welding ukuvavanya ngokuchanekileyo iziphumo zokuxhathisa. c. Ulwakhiwo lweenkozo: Ulwakhiwo lweenkozo kunye nokucwangciswa kwekristali yezixhobo kunokuchaphazela ukuxhathisa kwabo kombane. Izixhobo ezicolekileyo zidla ngokubonisa ukuxhathisa okuphantsi kunezixhobo ezirhabaxa. d. I-alloying Elements: Ukongezwa kwezinto ezixutywayo kunokutshintsha ukuxhatshazwa kombane wezinto eziphathekayo. Ukuqulunqwa kwe-alloy eyahlukeneyo kunokubangela amanqanaba ahlukeneyo okuxhathisa, okuchaphazela inkqubo ye-welding.

Ukuqonda ingqikelelo yokumelana nombane kunye nokubaluleka kwayo kumatshini wokuwelda we-inverter kwindawo ephakathi kubalulekile ekufezekiseni umgangatho we-weld kunye nokusebenza. Ngokuqwalasela i-resistiveivity yombane yezinto zokusebenza, abavelisi banokukhetha izinto ezifanelekileyo, ukulawula ukuhanjiswa kobushushu, ukunciphisa ukuxhatshazwa koqhagamshelwano, kunye nokuqinisekisa ukuhamba ngokufanelekileyo ngexesha lenkqubo ye-welding. Olu lwazi luququzelela ukuyila kunye nokusebenza kweenkqubo ze-welding, ekugqibeleni zikhokelela kwii-welds ezithembekileyo neziphezulu kwizicelo ezahlukeneyo zoshishino.