ʻO ka ʻokoʻa ma waena o TIG, MIG a me MAG welding
1. ʻO ka wiliwili TIG ka mea maʻamau he lama kuʻihao i paʻa ma ka lima hoʻokahi a me kahi uwea kuʻi i paʻa i kekahi, i kūpono no ka wili lima lima o nā hana liʻiliʻi a me ka hoʻoponopono.
2. No ka MIG a me ka MAG, ua hoʻouna ʻia ka uea kuʻi mai ka lama kuʻi ʻana ma o ka mīkini hoʻoheheʻe uea maʻamau, i kūpono no ka hoʻopili ʻana, a ʻoiaʻiʻo hiki ke hoʻohana ʻia e ka lima.
3. ʻO ka ʻokoʻa ma waena o MIG a me MAG ka mea nui i ke kinoea pale. Ua like nā mea hana, akā pale ʻia ka mea mua e ka argon, kahi kūpono no ka wili ʻana i nā metala non-ferrous; ʻO ka hope i hui pū ʻia me ke kinoea hana kalapona i loko o ka argon, a he kūpono ia no ka wili ʻana i ke kila ikaika a me ke kila kila kiʻekiʻe.
4. ʻO TIG a me MIG he kuʻi kuʻihao pale kinoea inert, i ʻike mau ʻia ʻo argon arc welding. Hiki i ke kinoea inert ke argon a i ʻole helium, akā ʻoi aku ka liʻiliʻi o ka argon, no laila ua hoʻohana maʻamau ia, no laila ua kapa ʻia ʻo inert gas arc welding.
Hoʻohālikelike o ka MIG welding a me TIG welding
Hoʻohālikelike o MIG welding a me TIG welding MIG welding (melting inert gas shielded welding) ma ka ʻōlelo Pelekania: metala inert-gas welding hoʻohana i ka electrode hehee.
ʻO ke ʻano hoʻoheheʻe arc e hoʻohana ana i ke kinoea i hoʻohui ʻia e like me ke ʻano arc a pale i nā kulu metala, ka wai wili a me ka metala wela kiʻekiʻe ma ka ʻāpana kuʻi ʻana i kapa ʻia ʻo gas metala pale arc welding.
Ua kapa ʻia ke ʻano hoʻoheheʻe ʻana i ke kinoea inert (Ar a i ʻole He) me ka uea paʻa i hoʻoheheʻe ʻia, a i ʻole MIG welding no ka pōkole.
Ua like ka MIG welding me ka TIG welding koe wale nō ka hoʻohana ʻana i kahi uwea ma kahi o ka electrode tungsten i ka lama. No laila, hoʻoheheʻe ʻia ka uea kuʻi ʻana e ka arc a hānai ʻia i loko o ka ʻāpana kuʻi. E hānai ʻia nā wili uila i ka uwea mai ka spool a i ka lama e like me ka mea e pono ai no ka wili, a ʻo ke kumu wela he DC arc.
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Akā ʻo ka polarity ka mea kū'ē i ka mea i hoʻohana ʻia i ka welding TIG. He ʻokoʻa hoʻi ke kinoea pale i hoʻohana ʻia, a ua hoʻohui ʻia ka 1% oxygen i ka argon e hoʻomaikaʻi ai i ke kūpaʻa o ke arc.
E like me ka TIG welding, hiki iā ia ke weld kokoke i nā metala āpau, kūpono loa no nā mea wili e like me nā alumini a me nā alumini, nā keleawe a me ke keleawe, a me ke kila kila. Aneane ole oxidation kuni poho i ka welding kaʻina hana, he uuku nui o evaporation poho, a me ka metallurgical kaʻina mea maʻalahi.
TIG welding (Tungsten Inert Gas Welding), i ʻike pū ʻia me ka hoʻoheheʻe ʻole ʻana i ke kinoea inert tungsten pale pale. ʻO ka wili lima a i ʻole ka wiliwī maʻamau o 0.5-4.0mm mānoanoa kila kila, ʻo TIG welding ka mea maʻamau i hoʻohana ʻia.
Hoʻohana pinepine ʻia ke ʻano o ka hoʻohui ʻana i ka uea hoʻopihapiha e ka welding TIG no ke kākoʻo ʻana i nā moku kaomi, no ka mea, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka ea o TIG welding a hiki ke hōʻemi i ka porosity o ka weld seam i ka wā wili o nā moku kaomi.
ʻO ke kumu wela o ka welding TIG he DC arc, ʻo ka volta hana he 10-95 volts, akā hiki i kēia manawa ke hiki i 600 amps.
ʻO ke ala kūpono e hoʻopili ai i ka mīkini wiliwili, ʻo ia ka hoʻopili ʻana i ka mea hana i ka pou maikaʻi o ka lako mana, a ʻo ka pou tungsten i ka lama kuʻi ʻana e like me ka pou ʻino.
Hāʻawi ʻia ke kinoea inert, ʻo ka argon maʻamau, ma o ka lama e hana i kahi pale a puni ke arc a ma luna o ka wai weld.
No ka hoʻonui ʻana i ka hoʻokomo wela, hoʻohui ʻia ka 5% hydrogen i ka argon. Eia naʻe, i ka wā e wiliwili ai i ke kila kila ferritic, ʻaʻole hiki ke hoʻohui ʻia ka hydrogen i ka argon.
ʻO ka hoʻohana kinoea ma kahi o 3-8 lita i kēlā me kēia minuke.
Ma ke kaʻina hana hoʻoheheʻe, ma waho aʻe o ka puhi ʻana i ke kinoea inert mai ka lama welding, ʻoi aku ka maikaʻi o ka puhi ʻana i ke kinoea i hoʻohana ʻia e pale i ke kua o ka weld mai lalo o ka weld.
Inā makemake ʻia, hiki ke hoʻopiha ʻia ka puddle weld me ka uea o ka haku mele like me ka mea austenitic i welded ʻia. Hoʻohana maʻamau ka mea hoʻopihapiha ʻano 316 i ka wā e wili ai i nā kila stainless ferritic.
Ma muli o ka pale ʻana i ke kinoea argon, hiki iā ia ke hoʻokaʻawale i ka hopena ʻino o ka ea ma ka metala hoʻoheheʻe, no laila hoʻohana nui ʻia ka welding TIG i ka welding.
ʻO nā metala non-ferrous maʻalahi e like me ka aluminika, ka magnesium a me kā lākou mau ala, ke kila kila, nā ala wela wela, ka titanium a me ka titanium alloys, a me nā metala ikaika refractory (e like me molybdenum, niobium, zirconium, etc.), ʻoiai ke kalapona maʻamau. ʻAʻole hoʻohana pinepine ʻia ka wiliwili TIG koe wale nō nā manawa e koi ai i ka maikaʻi kuʻihao kiʻekiʻe.
Ka manawa hoʻouna: ʻAukake-24-2023
