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Nā pilikia i ka wiliwili ʻana i nā kila like ʻole

ʻO nā metala like ʻole e pili ana i nā metala o nā mea like ʻole (e like me ke aluminika, ke keleawe, a me nā mea ʻē aʻe) a i ʻole kekahi mau ʻāpana i hana ʻia mai ka metala kumu hoʻokahi (e like me ke kila kalapona, ke kila kila, a me nā mea ʻē aʻe) i loaʻa nā ʻokoʻa nui i nā waiwai metallurgical, e like me ke kino. nā waiwai, nā waiwai kemika, a pēlā aku. Hiki ke hoʻohana ʻia ma ke ʻano metala kumu, metala hoʻopihapiha a i ʻole metala weld.

ʻO ka welding o nā mea like ʻole e pili ana i ke kaʻina hana o ka wili ʻana i ʻelua a ʻoi aku paha nā mea like ʻole (e pili ana i nā haku mele like ʻole, nā ʻano metallographic, nā waiwai, a me nā mea ʻē aʻe) ma lalo o kekahi mau kūlana kaʻina. Ma waena o ka hoʻopiliʻana i nā metala likeʻole,ʻo ka mea maʻamau ka hoʻopiliʻana i ke kila likeʻole, a ma hope o ka hoʻopiliʻana i nā metala non-ferrous likeʻole a me ka hoʻopiliʻana i nā metala kila a me nā mea haoʻole.

Mai ka hiʻohiʻona o nā ʻano hui, ʻekolu mau kūlana kumu, ʻo ia hoʻi nā hui me ʻelua mau kumu metala ʻokoʻa, nā hui me ka metala kumu like akā nā metala hoʻopiha like ʻole (e like me nā hui e hoʻohana ana i nā mea wili austenitic e weld medium-carbon quenched and tempered steel, etc.), A me nā hui welded o nā papa metala composite, etc.

ʻO ke kuʻi ʻana o nā mea like ʻole ke hui pū ʻia nā metala ʻelua, e hana ʻia kahi papa hoʻololi me nā waiwai like ʻole a me ke ʻano mai ka metala kumu. No ka mea he ʻokoʻa koʻikoʻi nā metala like ʻole i nā waiwai elemental, nā waiwai kino, nā waiwai kemika, a me nā mea ʻē aʻe, ke hoʻohālikelike ʻia me ka welding o nā mea like, ʻoi aku ka paʻakikī o ka welding o nā mea like ʻole e pili ana i ka mīkini welding a me ka ʻenehana hana. .

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)

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ʻO nā pilikia nui i ka welding o nā mea like ʻole penei:

1. ʻO ka nui o ka ʻokoʻa i nā helu heheʻe o nā mea like ʻole, ʻoi aku ka paʻakikī o ka weld.

ʻO kēia ke kumu i ka wā e hiki ai ka mea me ka helu haʻahaʻa i ke kūlana hoʻoheheʻe, ʻo ka mea me kahi kiʻekiʻe hoʻoheheʻe ʻia i loko o kahi kūlana paʻa. I kēia manawa, komo maʻalahi ka mea i hoʻoheheʻe ʻia i loko o nā palena ʻai o ka superheated zone, e hoʻolilo ana i ka nalowale o ka mea hoʻoheheʻe haʻahaʻa a me ka puhi ʻana a i ʻole ka hoʻoheheʻe ʻana o nā mea hao. E hoʻopaʻakikī i ka wiliwili ʻana i nā hui wili. No ka laʻana, i ka wā e wili ai i ka hao a me ke kēpau (he ʻokoʻa loa nā helu heheʻe), ʻaʻole wale nā ​​mea ʻelua e hoʻoheheʻe i kekahi i kekahi i ke kūlana paʻa, akā ʻaʻole hiki iā lākou ke hoʻoheheʻe kekahi i kekahi i ke kūlana wai. Hoʻokaʻawale ʻia ka metala wai i nā ʻāpana a crystallize kaʻawale ma hope o ka hoʻoilo.

2. ʻOi aku ka nui o ka ʻokoʻa i nā coefficient hoʻonui laina o nā mea like ʻole, ʻoi aku ka paʻakikī o ka weld.

ʻO nā mea me nā mea hoʻonui laina laina nui e loaʻa i ka nui o ka hoʻonui ʻana i ka wela a me ka emi ʻana i ka wā hoʻoluʻu, kahi e hoʻoulu ai i ke koʻikoʻi kuʻihao i ka wā e hoʻoheheʻe ʻia ai ka wai hoʻoheheʻe. ʻAʻole maʻalahi kēia koʻikoʻi welding e hoʻopau, e hopena i ka deformation wili nui. Ma muli o ke koʻikoʻi ʻokoʻa o nā mea ma nā ʻaoʻao ʻelua o ka weld, ua maʻalahi ka hana ʻana i nā māwae i ka weld a me ka wahi i hoʻopili ʻia i ka wela, a hiki i ka weld metala e peel i ka metala kumu.

3. ʻOi aku ka nui o ka ʻokoʻa i ka conductivity wela a me ka hiki ke wela o nā mea like ʻole, ʻoi aku ka paʻakikī o ka weld.

ʻO ka hoʻoili wela a me ka mana wela o ka mea e hoʻohaʻahaʻa i nā kūlana crystallization o ka weld metala, e hoʻohaʻahaʻa nui i nā kīʻaha, a pili i ka hana pulu ʻana o ka metala refractory. No laila, pono e hoʻohana ʻia kahi kumu wela ikaika no ka wili. I ka wā wili, pono ke kūlana o ke kumu wela ma ka ʻaoʻao o ka metala kumu me ka conductivity thermal maikaʻi.

4. ʻO ka nui o ka ʻokoʻa electromagnetic ma waena o nā mea like ʻole, ʻoi aku ka paʻakikī o ka weld.

No ka mea ʻoi aku ka nui o ka ʻokoʻa electromagnetic ma waena o nā mea, ʻoi aku ka paʻa ʻole o ke arc welding a ʻoi aku ka maikaʻi o ka weld.

5. ʻOi aku ka nui o nā pūhui intermetallic i hana ʻia ma waena o nā mea like ʻole, ʻoi aku ka paʻakikī o ka weld.

No ka mea he palupalu nā pūhui intermetallic, hiki iā lākou ke hana maʻalahi i nā māwae a i ʻole nahā i ka weld.

6. I ka wā o ke kaʻina hana kuʻi ʻana o nā mea like ʻole, ma muli o ka hoʻololi ʻana i ke ʻano metallographic o ka wahi kuʻi ʻana a i ʻole nā ​​​​mea hou i hana ʻia, e hoʻohaʻahaʻa ana ka hana o nā hui welded, e lawe mai ana i nā pilikia nui i ka welding.

ʻAʻole maikaʻi nā waiwai mechanical o ka ʻāpana hui pū a me ka wahi i hoʻopilikia ʻia i ka wela, ʻoi aku ka nui o ka hoʻemi ʻana o ka paʻakikī palaki. Ma muli o ka emi ʻana o ka paʻakikī paʻakikī o ka hui a me ke ʻano o ke koʻikoʻi welding, ʻoi aku ka maikaʻi o nā hui welded o nā mea like ʻole i nā māwae, ʻoi aku ka maikaʻi ma ka wahi i hoʻopili ʻia i ka wela, ʻoi aku ka paʻa a haki paha.

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7. ʻOi aku ka ikaika o ka oxidation o nā mea like ʻole, ʻoi aku ka paʻakikī o ka weld.

No ka laʻana, i ka wā e wili ʻia ai ke keleawe a me ka alumini e ka welding fusion, ua hana maʻalahi nā keleawe a me nā alumini oxides i loko o ka wai hoʻoheheʻe. I ka wā hoʻoluʻu a me ka crystallization, hiki i nā oxides i loaʻa ma nā palena o ka palaoa ke hōʻemi i ka ikaika paʻa intergranular.

8. I ka wā e kuʻi ai i nā mea like ʻole, paʻakikī i ka wili wili a me nā metala kumu ʻelua e hoʻokō i nā koi o ka ikaika like.

ʻO kēia no ka mea he maʻalahi nā mea metala me nā wahi hoʻoheheʻe haʻahaʻa e puhi a evaporate i ka wā wili, e hoʻololi i ke ʻano kemika o ka weld a e hōʻemi i kona mau waiwai mechanical, ʻoi aku hoʻi i ka wā e wili ai i nā metala non-ferrous like ʻole.


Ka manawa hoʻouna: Dec-28-2023