Kuyesera kwa Pambuyo pa Weld Kuwotcherera Nut Spot: Kuwona Zotheka

Mukamaliza kuwotcherera madontho a nati, ndikofunikira kuunika momwe ma welds alili abwino komanso kukhulupirika kwake. Kuchita zoyeserera pambuyo pa weld kumapereka chidziwitso chofunikira pamakina amakina a weld, mphamvu zake, komanso kukhulupirika kwake. Nkhaniyi ikuyang'ana njira zingapo zoyesera zomwe zitha kuchitidwa kuti muwone ndikuwunika ma welds a nati.

1. Kuyesa kwa Tensile: Kuyesa kwamphamvu kumagwiritsidwa ntchito nthawi zambiri kuwunika zamakina ndi mphamvu zamalumikizidwe owotcherera. Pakuyesa uku, zitsanzo zingapo zowotcherera zimayendetsedwa ndi mphamvu zolimba mpaka kulephera. Zotsatirazi zimapereka chidziwitso chokhudza kulimba kwamphamvu kwambiri, mphamvu zokolola, kutalika, ndi kusweka kwa ma welds, kuthandizira kuwunika momwe amagwirira ntchito komanso kuyenerera kwa ntchito yomwe akufuna.
2. Kuyesa kwa Shear: Kuyesa kukameta ubweya kumapangidwa makamaka kuti awone mphamvu yakumeta ubweya ndi kukana kwa ma welds. Kuyesa uku kumaphatikizapo kuyika zitsanzo zowotcherera ku mphamvu yometa mpaka zitalephera. Deta yopezedwa, kuphatikiza kumeta ubweya wa ubweya, kusamuka, ndi kulephera, kumathandizira kutsimikiza kwa mphamvu yakumeta ubweya wa weld ndikutha kupirira katundu wogwiritsidwa ntchito.
3. Kusanthula kwa Microstructural: Kusanthula kwa Microstructural kumapangitsa kuwunika kwa mkati mwa weld ndikuwunikira momwe zimakhalira tirigu, malo omwe amakhudzidwa ndi kutentha, ndi zolakwika zilizonse zomwe zingachitike kapena zosiya. Njira monga metallography, microscopy, ndi scanning electron microscopy (SEM) zitha kugwiritsidwa ntchito kuyang'ana ndikusanthula kachulukidwe ka weld, kuthandizira kuwunika mtundu wake ndikuzindikira zovuta zilizonse zomwe zingakhudze magwiridwe ake.
4. Kuyesa Kuuma: Kuyesa kuuma kumachitidwa kuti kuyezetsa kuuma kufalikira kudera lonse la weld. Mayesowa amathandizira kuwunika momwe ma weld amapangidwira ndikuwunika kukhalapo kwa madera aliwonse ofewa kapena olimba omwe angakhudze mphamvu ndi kulimba kwake. Njira ngati Vickers kapena Rockwell kuuma kutha kugwiritsidwa ntchito kutsimikizira kuuma kwa weld ndikuzindikira kusiyana kulikonse mkati mwa olowa.
5. Kuyesa Kopanda Kuwononga (NDT): Njira zoyesera zosawononga, monga kuyesa kwa ultrasonic, kuyesa kwa eddy, kapena kuyesa kwa radiographic, zitha kugwiritsidwa ntchito kuwunika momwe ma welds amapangidwira mkati popanda kuwononga. Njirazi zimatha kuzindikira zolakwika, monga ming'alu, voids, kapena inclusions, kuonetsetsa kuti ma welds akukwaniritsa zofunikira ndi zofunikira.

Kuchita zoyeserera pambuyo pa weld ndikofunikira pakuwunika mtundu, mphamvu, komanso kukhulupirika kwa ma welds a nati. Kuyesa kwamphamvu, kuyesa kukameta ubweya, kusanthula kwa microstructural, kuyesa kuuma, komanso kuyesa kosawononga ndi njira zofunikira zomwe zimapereka chidziwitso chofunikira pamakina a ma welds, kapangidwe ka mkati, ndi zolakwika zomwe zingachitike. Pochita zoyeserera izi, mainjiniya ndi owotcherera amatha kuwonetsetsa kuti ma welds akukwaniritsa zofunikira ndi zofunikira, potero kuwonetsetsa kudalirika kwawo komanso magwiridwe antchito pazogwiritsa ntchito zenizeni.