Resistance spot kuwotcherera ndi njira yomwe imagwiritsidwa ntchito kwambiri m'mafakitale opangira kuti agwirizane ndi zitsulo bwino. Kuwonetsetsa kuti ma weld point ndiofunika kwambiri kuti musunge kukhulupirika komanso chitetezo cha chinthu chomaliza. M'nkhaniyi, tikambirana njira yodziwira mtundu wa weld point mumakina akuwotcherera amakani.
Resistance spot kuwotcherera ndi njira yomwe zidutswa ziwiri zachitsulo zimalumikizidwa pogwiritsa ntchito kutentha ndi kukakamiza pamalo enaake. Ubwino wa weld point zimadalira zinthu zosiyanasiyana, kuphatikiza magawo owotcherera, zinthu zakuthupi, komanso momwe ma electrode amawotcherera. Kuzindikira ndi kuonetsetsa kuti mfundo za weld izi ndizofunikira kuti tipewe zolakwika ndikusunga kudalirika kwa zigawo zowotcherera.
Njira Yodziwira Ubwino wa Weld Point
- Kuyang'anira Zowoneka: Njira yosavuta yodziwira mtundu wa weld point ndikuwunika kowonera. Ogwiritsa ntchito aluso amatha kuyang'ana zowotcherera kuti aone zolakwika monga ming'alu, voids, kapena kulowa kosakwanira. Kuyang'ana kowoneka kumapereka mayankho achangu ndipo nthawi zambiri ndi njira yoyamba yodzitchinjiriza pakuwongolera khalidwe.
- Kuyesa kwa Ultrasonic: Kuyesa kwa Ultrasonic ndi njira yosawononga yomwe imagwiritsa ntchito mafunde amphamvu kwambiri kuti ayang'ane mawonekedwe amkati a weld. Imatha kuzindikira zolakwika zamkati zomwe sizingawonekere poyang'anitsitsa, monga ming'alu yobisika kapena voids.
- Kuwunika kwa X-ray: Kuwunika kwa X-ray ndi njira ina yosawononga yomwe imapereka chithunzithunzi chatsatanetsatane cha kapangidwe ka mkati mwa weld. Ndiwothandiza kwambiri pozindikira zolakwika zamkati ndikuwonetsetsa kuti mfundo za weld ndizofunikira kwambiri.
- Weld Current ndi Voltage Monitoring: Kuyang'anira kuwotcherera pakali pano ndi voteji panthawi yowotcherera kungapereke zenizeni zenizeni zenizeni za mtundu wa weld. Kupatuka kwa magawo omwe atchulidwa kumatha kuwonetsa zovuta ndi weld, monga kusalumikizana bwino kapena kusagwirizana kwazinthu.
- Kuyesa kwa Shear ndi Tensile: Kuti muwone mphamvu zamakina a weld, zitsanzo zitha kuyesedwa kumeta ubweya ndi zolimba. Mayesowa amatsimikizira kuthekera kwa weld kupirira mphamvu zakunja ndikuwonetsetsa kuti ikukwaniritsa zofunikira zamphamvu.
- Microstructural Analysis: Kusanthula kwa Microstructural kumaphatikizanso kuyang'ana kachulukidwe kakang'ono ka weld pansi pa maikulosikopu. Njirayi imatha kuwulula zambiri za kapangidwe ka tirigu wa weld, zomwe zingakhudze makina ake.
- Kuyesa kwa Dye Penetrant: Kuyesa kolowera kwa utoto ndi njira yomwe imagwiritsidwa ntchito kuti muwone zolakwika zapamtunda pama welds. Utoto wolowera umayikidwa pamwamba pa weld, ndipo utoto uliwonse wowonjezera umachotsedwa. Utotowo umalowa m'zilema zapamtunda, ndikupangitsa kuti ziwonekere pansi pa kuwala kwa UV.
- Kuyesa kwa Magnetic Particle: Njirayi ndi yoyenera kuzindikira zolakwika zapamtunda ndi pafupi ndi pamwamba pa zida za ferromagnetic. Magnetic particles amagwiritsidwa ntchito pa weld, ndipo kusokonezeka kulikonse mu mphamvu ya maginito chifukwa cha zolakwika kumadziwika.
Kuwonetsetsa mtundu wa ma weld point mumakina owotcherera omwe amakanizidwa ndikofunikira kuti asunge kukhulupirika kwa zida zowotcherera. Kugwiritsa ntchito njira zowunikira zowunikira komanso zosawononga zoyesa monga kuyezetsa akupanga, kuwunika kwa X-ray, ndi kuwunika kwapakali pano kungathandize kuzindikira zolakwika ndi kupatuka pamiyezo yabwino. Kuyesa kwamakina ndi kusanthula kwa microstructural kumatsimikiziranso kuti ma welds amakwaniritsa mphamvu zomwe zimafunikira komanso kapangidwe kake. Pogwiritsa ntchito njirazi, opanga amatha kupanga zinthu zokokedwa zapamwamba kwambiri molimba mtima.
Nthawi yotumiza: Sep-22-2023