Ma hope o ke kaʻina hana kuʻi ʻana i ka weld spot nut, pono ia e hana i ka nānā pono ʻana 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.
- 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.
- ʻO ka nānā ʻana i ka Macroscopic: ʻO ka nānā ʻana i ka macroscopic 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. Hiki iā ia ke ʻike i nā hemahema weld, me ka uila nui, misalignment, kūpono ʻole ke kūkulu ʻana i nā 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.
- 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.
- 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.
- 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.
Ka manawa hoʻouna: Iune-15-2023
