Nā Kaʻina Nānā Ma hope o Weld no nā Welds Spot Nut?

Ma hope o ke kaʻina hana kuʻi ʻana i ka weld spot nut, pono ia e hana i nā nānā pono e loiloi i ka maikaʻi a me ka pololei o ka hui weld.Hāʻawi kēia ʻatikala i kahi hiʻohiʻona o nā ʻano hoʻokolohua like ʻole i hoʻohana ʻia no ka nānā hope-weld i ka weld spot nut, e hōʻike ana i ko lākou koʻikoʻi i ka loiloi ʻana i ka hana weld.

1. Nānā Kiʻi: ʻO ka nānā ʻike ʻana ke ala mua a maʻamau e loiloi i ka maikaʻi o nā welds kiko nut.Hoʻopili ia i ka nānā ʻana i ka hui weld no nā ʻano like ʻole o ka ʻili, e like me nā māwae, porosity, spatter, a i ʻole ka hui ʻana ʻole.ʻO ka nānā ʻana i nā hiʻohiʻona e kōkua i ka ʻike ʻana i nā hemahema i ʻike ʻia e pili ana i ka ikaika a me ka hilinaʻi o ka weld.
2. ʻO ka nānā ʻana Macroscopic: ʻO ka nānā ʻana i ka macroscopic e pili ana i ka nānā ʻana i ka hui weld ma lalo o ka hoʻonui a i ʻole me ka maka ʻōlohelohe e nānā i kona ʻano holoʻokoʻa a me ka geometry.ʻAe ia no ka ʻike ʻana i nā hemahema weld, me ka uila nui, misalignment, kūpono ʻole ka hana nugget, a i ʻole ke komo ʻana.Hāʻawi ka ʻike macroscopic i ka ʻike waiwai e pili ana i ka maikaʻi holoʻokoʻa a me ka pili ʻana i nā kikoʻī welding.
3. Ka Ho'āʻo Microscopic: Hana ʻia ka nānā ʻana i ka microscopic e loiloi i ka microstructure o ka weld zone.Hoʻopili ia i ka hoʻomākaukau ʻana i nā laʻana metallographic, a laila nānā ʻia ma lalo o kahi microscope.Kōkua kēia ʻenehana e ʻike i ka hiki ʻana mai o nā hemahema microstructural, e like me nā anomalies palena ʻai, nā pae intermetallic, a i ʻole ka weld metala segregation.Hāʻawi ka hoʻokolohua microscopic i nā ʻike i nā ʻano metala o ka weld a me kona hopena i nā waiwai mechanical.
4. Nā ʻenehana hoʻāʻo ʻaʻole luku (NDT): a.Ultrasonic Testing (UT): Hoʻohana ʻo UT i nā hawewe kani alapine kiʻekiʻe e nānā i ka hui weld no nā hemahema o loko, e like me nā puka, porosity, a i ʻole ka hui ʻana.He ʻenehana NDT i hoʻohana nui ʻia e hāʻawi i ka ʻike kikoʻī e pili ana i ke ʻano o loko o ka weld me ka ʻole o ka hōʻino ʻana i ka hāpana.b.Hōʻike Radiographic (RT): ʻO ka RT ka hoʻohana ʻana i nā kukui X a i ʻole nā ​​​​kukui gamma e nānā i ka hui weld no nā hemahema o loko.Hiki iā ia ke ʻike i nā hemahema, e like me nā māwae, nā hoʻokomo ʻana, a i ʻole ka hui ʻana ʻole, ma ka hopu ʻana i ka radiation i hoʻouna ʻia ma kahi kiʻiʻoniʻoni radiographic a i ʻole ka mea ʻike kikohoʻe.c.ʻO ka hoʻāʻo ʻana i ka ʻāpana mākēneki (MPT): Hoʻohana ʻia ka MPT e ʻike i nā hemahema o ka ʻili a me ka kokoke i ka ʻili, e like me nā māwae a i ʻole ka hoʻopau ʻana, me ka hoʻohana ʻana i nā māla magnetic a me nā ʻāpana magnetic.He kūpono kēia ʻano no nā mea ferromagnetic.
5. Ho'āʻo Mechanical: Hana ʻia ka hoʻāʻo mīkini e loiloi i nā waiwai mechanical o nā welds kiko nut.ʻO nā hoʻāʻo maʻamau ka hoʻāʻo tensile, hoʻāʻo paʻakikī, a me ka hoʻāʻo luhi.Hōʻike kēia mau hoʻāʻo i ka ikaika o ka weld, ductility, paʻakikī, a me ke kūpaʻa luhi, e hāʻawi ana i ka ʻike koʻikoʻi e pili ana i kāna hana ma lalo o nā kūlana hoʻouka like ʻole.

He mea nui ka nānā ʻana ma hope o ka weld i ka weld spot nut e hōʻoia i ka maikaʻi a me ka hilinaʻi o ka hui weld.Ma ka hoʻohana ʻana i ka nānā ʻike maka, ka nānā ʻana i ka macroscopic a me ka microscopic, nā ʻenehana hoʻāʻo non-destructive, a me ka hoʻāʻo mechanical, hiki i nā mea hoʻohana ke loiloi pono i ka pono o ka weld, ʻike i nā hemahema, a loiloi i kona mau waiwai.Ke kōkua nei kēia mau ʻano nānā i ka hoʻokō ʻana o nā weld spot nut i nā kūlana a me nā kikoʻī i koi ʻia, e hāʻawi ana i nā hui welded palekana a paʻa.