Njira Yoyezera Nthawi Yopanikizika Isanachitike mu Makina Owotcherera a Resistance Spot

Resistance spot welding ndi njira yofunikira yomwe imagwiritsidwa ntchito m'mafakitale osiyanasiyana polumikiza zitsulo palimodzi. Kuti mukwaniritse ma welds apamwamba kwambiri, kuwongolera molondola pazigawo zowotcherera ndikofunikira. Chimodzi mwazofunikira kwambiri ndi nthawi yoyambira kupanikizika, yomwe imagwira ntchito yofunika kwambiri pakuwonetsetsa kuti nsonga za weld zikuyenda bwino. M'nkhani ino, tikambirana njira calibrating pre-anzanu nthawi mu kukana malo kuwotcherera makina.

Kuwotcherera kwa Resistance spot kumaphatikizapo kugwiritsa ntchito magetsi kuti apange kutentha komweko komwe kumawotcherera, ndikutsatiridwa ndi kukakamiza kwamakina kuti alumikizane ndi zitsulo ziwiri. Nthawi ya pre-pressure ndi nthawi yomwe ma elekitirodi amagwiritsa ntchito kukakamiza kwa zida zogwirira ntchito musanagwiritse ntchito kuwotcherera kwenikweni. Nthawi imeneyi ndi yofunika kwambiri chifukwa imakonzekeretsa zida zowotcherera pozifewetsa kapena kuyeretsa malo awo.

Kufunika kwa Nthawi Yoyamba Kupanikizika

Nthawi ya pre-pressure imakhudza kwambiri ubwino ndi mphamvu ya weld. Ngati nthawi ya pre-pressure ili yochepa kwambiri, zipangizozo sizingafewetsedwe bwino kapena kutsukidwa, zomwe zimapangitsa kuti weld afooke ndi kulowa bwino. Kumbali ina, ngati nthawi ya pre-pressure ndi yayitali kwambiri, imatha kuyambitsa kutentha kwambiri komanso kusinthika kwa zida zogwirira ntchito, zomwe zimapangitsa kusokoneza komanso kusokoneza kukhulupirika kwa mgwirizano.

Njira ya Calibration

Kuwongolera nthawi ya pre-pressure kumaphatikizapo njira yokhazikika kuti muwonetsetse kuti zinthu zili bwino. Nazi njira zomwe mungatsatire:

1. Kupanga Makina: Yambani pokhazikitsa makina owotcherera okana ndi mphamvu yomwe mukufuna, kuwotcherera pakali pano, ndi zoikamo zowotcherera nthawi.
2. Nthawi Yoyamba Isanayambe Kupanikizika: Sankhani nthawi yoyambira kupanikizika yomwe ili mkati mwazomwe mungagwiritse ntchito. Izi zitha kukhala poyambira pakuwongolera.
3. Welding Test: Chitani ma welds oyesera pogwiritsa ntchito nthawi yosankhidwa isanakwane. Unikani mtundu wa welds malinga ndi mphamvu ndi maonekedwe.
4. Sinthani Nthawi Ya Pre-Pressure: Ngati nthawi yoyamba ya pre-pressure imayambitsa ma welds omwe sali oyenerera, pangani kusintha kowonjezereka kwa nthawi ya pre-pressure. Onjezani kapena kuchepetsa nthawi pang'onopang'ono (mwachitsanzo, ma milliseconds) ndikupitiriza kuyesa ma weld mpaka mtundu womwe mukufuna utakwaniritsidwa.
5. Kuyang'anira ndi Kulemba: Munthawi yonseyi yoyeserera, yang'anirani bwino momwe weld alili ndikulembera zoikidwiratu zanthawi yayitali pamayeso aliwonse. Zolemba izi zikuthandizani kuti muzisunga zomwe zasinthidwa komanso zotsatira zake.
6. Kukhathamiritsa: Mutazindikira nthawi yowotcherera isanakwane yomwe imatulutsa ma weld apamwamba nthawi zonse, mwayesa bwino makina owotcherera omwe amakanizidwa kuti mugwiritse ntchito.

Kuwongolera nthawi yanthawi yayitali pamakina owotcherera malo okana ndi gawo lofunikira pakuwonetsetsa kuti ma welds apamwamba kwambiri apangidwa. Mwa kusintha mwadongosolo ndikuyesa nthawi yoyambira kupanikizika, mutha kukhathamiritsa njira yowotcherera pazinthu zanu zenizeni ndikugwiritsa ntchito, zomwe zimatsogolera ku ma welds amphamvu, odalirika. Kuwongolera koyenera sikumangowonjezera mtundu wa weld komanso kumachepetsa kuthekera kwa zolakwika ndikukonzanso, pamapeto pake kumapangitsa kuti ntchito zanu zowotcherera zikhale zogwira mtima komanso zotsika mtengo.