Preloading, inozivikanwawo se precompression kana pre-kusvina, inhanho yakakosha mukuita kwepakati frequency inverter spot welding.Ichi chinyorwa chinoongorora kukosha kwekutanga kurodha uye maitiro ayo pamhando ye weld uye kuita.
Kuwana Yakakodzera Electrode Alignment:
Chimwe chezvinangwa zvekutanga zvekuisa pamberi ndechekuona kurongeka kwakaringana kwemagetsi kusati kwatanga.Nekushandisa inodzorwa preloading simba, ma electrode anounzwa kusangana neanoshanda, kumisikidza yakagadzikana uye inowirirana electrode-to-workpiece interface.Kurongeka uku kwakakosha pakuchengetedza kuyerera kwazvino uye kupararira kwekupisa panguva yewelding, zvichikonzera kuvimbika uye mayunifomu welds.
Kuwedzera Electrical Conductivity:
Preloading inobatsira kuvandudza conductivity yemagetsi pakati pe electrode uye workpieces.Nekushandisa kudzvanywa, chero tsvina yepasi kana maokisi inogona kukanganisa kubata kwemagetsi inobviswa kana kutyoka, zvichibvumira kuyerera kuri nani ikozvino.Kuvandudzwa kwemagetsi conductivity inosimudzira kushanda kwesimba rinoshanda, zvichiita kuti iwedzere kushanda uye yakasimba nzvimbo welds.
Kuve nechokwadi Chinopindirana Nugget Kuumbwa:
Iko kushandiswa kwe preloading simba kunobatsira kuve nechokwadi chekugadzirwa kweinowirirana uye yakanyatsotsanangurwa weld nugget.Iyo preload inodzvanya maworkpieces, ichideredza kusangana kwekupokana uye kugonesa zvirinani kupisa chizvarwa pane interface.Uku kudzvanywa kunodzorwa kunofambisa kuumbwa kwenzvimbo yakavimbika yefusion, inoratidzirwa nekubatana kwakaringana uye kuvimbika kwesimbi.
Kuderedza Electrode Marks:
Preloading inogona kuderedza kuumbwa kwe electrode mamaki pane workpiece pamusoro.Kana maelectrodes akanyatso kurongedzerwa, kudzvanywa kunogovaniswa zvakaenzana, zvichideredza mukana wenzvimbo yemuno indentation kana kumaka kunokonzerwa nesimba rakawandisa.Izvi zvinobatsira kuchengetedza kutaridzika kwekunaka kwezvikamu zvakashongedzwa.
Kukurudzira Weld Simba uye Kusimba:
Iko kushandiswa kwe preloading simba inosimudzira iyo yakazara simba uye kusimba kweiyo spot weld.Nekuona kurongeka kwakaringana, kufambiswa kwemagetsi, uye kugadzira nugget, preloading inobatsira kune welds ane yakagadziridzwa michina zvinhu, senge yakakwira tensile uye shear simba.Izvi zvinonyanya kukosha mumashandisirwo apo weld kutendeseka uye kushanda kwenguva refu kwakakosha.
Preloading inoita basa rakakosha mune yepakati frequency inverter nzvimbo welding.Inochengetedza kurongeka kwe electrode kwakaringana, inosimudzira kufambiswa kwemagetsi, inosimudzira kuenderana kuumbwa kwe nugget, inoderedza mamaki e electrode, uye inobatsira kune weld simba uye kusimba.Nekubatanidza preloading seyakajairwa tsika, vashandisi vanogona kuwana emhando yepamusoro nzvimbo welds nekuvimbika kwakagadziridzwa, zvivakwa zvemuchina, uye kuita kwese.
Nguva yekutumira: May-16-2023