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Ma hope o ka hana ʻana no nā makahiki he nui, ʻaʻole hiki iaʻu ke wehewehe maoli i ka ʻokoʻa ma waena o CO2, MIGMAG a me MIGMAG pulsed!

ʻO ka manaʻo a me ka hoʻokaʻawale ʻana o ke kinoea metala arc welding 

ʻO ke ʻano kuʻihao arc e hoʻohana ana i ka electrode hoʻoheheʻe ʻia, ke kinoea waho e like me ke arc medium, a pale i nā droplets metala, wai hoʻoheheʻe a me nā metala wela kiʻekiʻe ma ka ʻāpana kuʻi ʻana i kapa ʻia ʻo molten electrode gas shielded arc welding.

E like me ka hoʻokaʻawale ʻana o ka welding uea, hiki ke hoʻokaʻawale ʻia i loko o ka wili wili paʻa paʻa a me ka hoʻoheheʻe ʻana i ka flux cored wire. ʻO ke kinoea inert (Ar a i ʻole He) i pale ʻia ke ʻano hoʻoheheʻe arc me ka hoʻohana ʻana i ka uea kumu paʻa i kapa ʻia ʻo Melting Inert Gas Arc Welding (MIG Welding); ʻO ke ʻano hoʻoheheʻe arc me ka hoʻohana ʻana i ka uea paʻa i kapa ʻia ʻo Metal Inert Gas Arc Welding (MIG welding). MAG (Metal Active Gas Arc Welding). CO2 kinoea pale kuʻihao me ka hoʻohana ʻana i ka uwea paʻa, i kapa ʻia ʻo CO2 welding. I ka hoʻohana ʻana i ka uea flux-cored, arc welding hiki ke hoʻohana i ka CO2 a i ʻole CO2+Ar i hui ʻia e like me ke kinoea pale i kapa ʻia ʻo flux-cored wire gas shielded welding. Hiki nō ke hana i kēia me ka hoʻohui ʻole ʻana i kahi kinoea pale. Ua kapa ʻia kēia ʻano hana hoʻoheheʻe pale pale ponoʻī.

Loaʻa i nā lako wili Xinfa nā hiʻohiʻona o ke kiʻekiʻe kiʻekiʻe a me ke kumu kūʻai haʻahaʻa. No nā kikoʻī, e kipa:Welding & Oki Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)

ʻO ka ʻokoʻa ma waena o MIG/MAG welding maʻamau a me CO2 welding

ʻO nā hiʻohiʻona o ka welding CO2: ke kumu kūʻai haʻahaʻa a me ka hana kiʻekiʻe. Eia nō naʻe, loaʻa iā ia nā hemahema o ka nui o ka spatter a me ka hoʻoheheʻe maikaʻi ʻole, no laila ke hoʻohana nei kekahi mau kaʻina wili i ka wili MIG/MAG maʻamau. ʻO ka hoʻoheheʻe MIG/MAG maʻamau he ʻano hoʻoheheʻe arc i pale ʻia e ka inert gas a i ʻole argon-rich gas, akā ʻo CO2 welding he mau waiwai oxidizing ikaika, e hoʻoholo ai i ka ʻokoʻa a me nā ʻano o nā mea ʻelua. Ke hoʻohālikelike ʻia me CO2 welding, ʻo nā pono nui o ka welding MIG/MAG penei:

1) Hoʻemi ʻia ka nui o ka splash ma mua o 50%. Paʻa ka paʻa o ka welding arc ma lalo o ka pale o argon a i ʻole argon-rich gas. ʻAʻole wale ka paʻa o ka arc i ka wā o ka hoʻololi droplet a me ka neʻe ʻana o ka jet, akā i ke kūlana hoʻololi pōkole hoʻi o ka welding MAG haʻahaʻa i kēia manawa, he hopena liʻiliʻi ka arc i nā droplets, no laila e hōʻoiaʻiʻo ai i ka MIG / ka nui o ka spatter i hoʻokumu ʻia e. Hoʻemi ʻia ka hoʻololi kaapuni pōkole MAG welding ma mua o 50%.

2) Hoʻokumu like ʻia ka wili wili a nani. No ka mea ʻo ka hoʻololi ʻana o nā droplets welding MIG/MAG he ʻano like, maʻalahi, a paʻa hoʻi, ua hana ʻia ka weld me ka nani a nani.

3) Hiki iā ia ke weld i nā metala ikaika a me kā lākou mau ala. He nāwaliwali loa ka waiwai oxidizing o ka lewa arc a i ʻole non-oxidizing. ʻAʻole hiki i ka MIG/MAG welding ke weld wale i ke kila kalapona a me ke kila kila kiʻekiʻe, akā he nui nā metala ikaika a me kā lākou mau ʻāpana, e like me: aluminika a me nā alumini alumini, ke kila kila a me kāna mau ʻāpana, Magnesium a me ka magnesium alloys, etc.

4) Hoʻomaikaʻi maikaʻi i ke kaʻina hana wili, ka maikaʻi wili a me ka hana pono.

ʻO ka ʻokoʻa ma waena o ka pulupulu MIG/MAG welding a me MIG/MAG maʻamau

ʻO nā ʻano hoʻololi droplet nui o ka welding MIG/MAG maʻamau, ʻo ia ka jet transfer ma ke ʻano kiʻekiʻe a me ka hoʻoili pōkole pōkole ma ke ʻano haʻahaʻa. No laila, ʻoi aku ka maikaʻi o ke au haʻahaʻa i ka nui o ka spatter a me ka maikaʻi ʻole o ke ʻano, ʻoiai ʻaʻole hiki ke wili ʻia kekahi mau metala ikaika ma lalo o ke au haʻahaʻa. ʻO ka welding e like me ka aluminika a me nā mea hao, ke kila kila, a pēlā aku. ʻO kāna ʻano hoʻoili droplet ʻo ia ka hoʻoili ʻana o kēlā me kēia pulse i hoʻokahi droplet. ʻO ka mea nui, he hoʻoili droplet. Hoʻohālikelike ʻia me ka welding MIG/MAG maʻamau, ʻo kāna mau hiʻohiʻona nui penei:

1) ʻO ke ʻano maikaʻi loa o ka hoʻoili droplet no ka pulse MIG/MAG welding ʻo ia ka hoʻoili ʻana i hoʻokahi droplet no ka pulse. Ma kēia ala, ma ka hoʻoponopono ʻana i ka pinepine pulse, hiki ke hoʻololi ʻia ka helu o nā droplets i hoʻololi ʻia i kēlā me kēia manawa, ʻo ia ka wikiwiki o ka hoʻoheheʻe ʻana o ka uea welding.

2) Ma muli o ka hoʻololi ʻana o ka droplet o hoʻokahi puʻupuʻu a me hoʻokahi kulu, ua like ke anawaena o ka droplet me ke anawaena o ka uwea kuʻi, no laila ʻoi aku ka haʻahaʻa o ka wela o ka droplet, ʻo ia hoʻi, haʻahaʻa ka wela o ka droplet. (hoʻohālikelike ʻia me ka jet transfer a me ka hoʻoili droplet nui). No laila, hoʻonui ʻia ka helu hoʻoheheʻe o ka uea kuʻi, ʻo ia ka mea e hoʻomaikaʻi ai ka hoʻoheheʻe ʻana o ka uea welding.

3) No ka haʻahaʻa o ka mahana droplet, ua emi ka uahi kuʻi. ʻO kēia ma ka ʻaoʻao hoʻokahi e hōʻemi i ka pau ʻana o nā mea alloy a ma kekahi ʻaoʻao e hoʻomaikaʻi i ke kaiapuni kūkulu.

Ke hoʻohālikelike ʻia me ka welding MIG/MAG maʻamau, ʻo kāna mau pono nui e like me kēia:

1) He liʻiliʻi a ʻaʻole ʻaʻohe spatter welding.

2) He alakaʻi maikaʻi ka arc a kūpono no ka hoʻopili ʻana i nā kūlana āpau.

3) Hoʻokumu maikaʻi ʻia ka weld, nui ka laulā heheʻe, nāwaliwali nā hiʻohiʻona e like me ka manamana lima, a he liʻiliʻi ke koena kiʻekiʻe.

4) Hiki i kēia manawa liʻiliʻi ke hoʻopaʻa maikaʻi i nā metala ikaika (e like me ka aluminika a me kāna mau alloys, etc.).

Hoʻonui i ka laulā o MIG/MAG welding jet transfer. I ka wā wili puliki, hiki i ke au kuʻihao ke hoʻokō i ka hoʻoili droplet paʻa mai kahi kokoke i ke au koʻikoʻi o ka hoʻoili ʻana o ka jet i kahi ʻoi aku ka nui o nā ʻumi amp.

Mai ka mea i luna, hiki iā mākou ke ʻike i nā ʻano a me nā pono o ka pulse MIG / MAG, akā ʻaʻohe mea hiki ke kūpono. Ke hoʻohālikelike ʻia me MIG/MAG maʻamau, ʻo kona mau hemahema penei:

1) He haʻahaʻa haʻahaʻa ka maikaʻi o ka hana kuʻi ʻana.

2) He kiʻekiʻe nā koi o ka maikaʻi no nā welders.

3) I kēia manawa, ʻoi aku ka kiʻekiʻe o ke kumukūʻai o nā mea hana welding.

ʻO nā hoʻoholo kaʻina hana nui no ke koho ʻana i ka pulse MIG/MAG welding

I ka nānā ʻana i nā hopena hoʻohālikelike ma luna, ʻoiai he nui nā pōmaikaʻi o ka pulse MIG/MAG welding i hiki ʻole ke hoʻokō ʻia a hoʻohālikelike ʻia me nā ʻano hana kuʻi ʻē aʻe, loaʻa nō hoʻi nā pilikia o nā kumukūʻai kiʻekiʻe o nā lako, haʻahaʻa haʻahaʻa haʻahaʻa, a paʻakikī i nā welders e haku. No laila, ʻo ke koho ʻana o ka pulse MIG / MAG welding e hoʻoholo nui ʻia e nā koi kaʻina hana. E like me nā kūlana kaʻina hana hoʻoheheʻe hale i kēia manawa, pono ka hoʻohana ʻana i ka pulupulu MIG/MAG welding.

1) Ke kila kalapona. ʻO nā manawa me nā koi kiʻekiʻe e pili ana i ka maikaʻi weld a me nā hiʻohiʻona ka mea nui i ka ʻoihana moku kaomi, e like me nā boilers, nā mea hoʻololi wela kemika, nā mea hoʻololi wela ea, a me nā pahu turbine i ka ʻoihana hydropower.

2) Ke kila kila. E hoʻohana i nā au liʻiliʻi (ma lalo o 200A ua kapa ʻia nā au liʻiliʻi ma aneʻi, e like me lalo) a me nā manawa me nā koi kiʻekiʻe e pili ana i ka maikaʻi weld a me ke ʻano, e like me nā locomotives a me nā moku kaomi i ka ʻoihana kemika.

3) Aluminum a me kona mau ala. E hoʻohana i ke au liʻiliʻi (ma lalo o 200A ua kapa ʻia ʻo ka liʻiliʻi ma aneʻi, ʻo ia ka mea ma lalo) a me nā manawa me nā koi kiʻekiʻe e pili ana i ka maikaʻi weld a me nā hiʻohiʻona, e like me nā kaʻa kaʻa kiʻekiʻe, nā hoʻololi kiʻekiʻe-voltage, ka hoʻokaʻawale ʻana i ka ea a me nā ʻoihana ʻē aʻe. ʻOi aku ka nui o nā kaʻaahi kiʻekiʻe, ʻo ia hoʻi ʻo CSR Group Sifang Rolling Stock Co., Ltd., Tangshan Rolling Stock Factory, Changchun Railway Vehicles, etc., a me nā mea hana liʻiliʻi e hoʻopuka ana i ka hana no lākou. Wahi a nā kumu o ka ʻoihana, ma ka makahiki 2015 e loaʻa nā kaʻa kaʻa pōkā i nā kapikala āpau a me nā kūlanakauhale me ka heluna ʻoi aku ma mua o 500,000 ma Kina. Hōʻike kēia i ka koi nui no nā kaʻa pōkā, a me ke koi no ka hana welding a me nā mea hana welding.

4) Ke keleawe a me kona mau ala. Wahi a ka ʻike i kēia manawa, hoʻohana maoli ke keleawe a me kāna mau ʻāpana i ka pulse MIG/MAG welding (i loko o ke ʻano o ka hoʻoheheʻe arc arc).


Ka manawa hoʻouna: Oct-23-2023