ʻO ka hopena o ka hoʻoili ʻana i ke anuanu ma ke ʻano a me nā waiwai o nā welds plate titanium maʻemaʻe ʻoihana

He aha nā hopena o ka hoʻoili ʻana i ke anuanu ma ke ʻano a me nā waiwai o nā welds plate titanium maʻemaʻe ʻoihana?

ʻO ka titanium maʻemaʻe ʻoihana ʻoi aku ka maikaʻi o ka corrosion resistance i ka oxidizing a me ka neutral media a ua hoʻohana nui ʻia i nā ʻano like ʻole e like me ka ʻoihana petrochemical a me ka hana paʻakai. Aia nā moʻolelo i loko o ka palapala ma hope o ka wiliwili argon arc o ka titanium maʻemaʻe ʻoihana, e loaʻa kahi wahi wai hoʻoheheʻe a me kahi wahi wela i ka weld. ʻOkoʻa loa ke ʻano o kēia mau ʻāpana ʻelua mai ke ʻano metala kumu. I ka manawa like, e hiki mai ana ka wahi wai hoohehee a me ka wahi wela. Nā mea ʻino ʻino makemake. Loaʻa i ka wili plasma nā mea maikaʻi o ke kiʻekiʻe o ka ikehu kiʻekiʻe, ka ikehu laina nui, a me ka hana kiʻekiʻe. ʻO ka hoʻohana ʻana i kēia ʻano hana e weld ai i nā papa titanium maʻemaʻe hiki ke lanakila i nā pilikia e hiki mai ana i ka wā e hoʻohana ai i ka welding argon arc tungsten electrode hoʻokahi-pass no ka mea kokoke ka tungsten electrode i ka wai hoʻoheheʻe. ʻO ka hoʻoheheʻe ʻana i ka corrosion, ke kumu o ka tungsten inclusions e komo i ka weld a me nā hemahema ʻē aʻe.

Ke hoʻohana nei ka laina hana coil o ka ʻoihana pā a me ka ʻoihana hoʻoneʻe i ka ʻenehana welding sheet e hana i nā coils titanium. No laila, e nui nā welds deformed i loko o nā huahana coil anu. He mea koʻikoʻi paha kēia mau welds deformed me nā ʻāpana ʻē aʻe o ka coil. He hopena koʻikoʻi ka nui o ka hoʻohana ʻana i nā mea coil. Ua aʻo ka poʻe noiʻi ʻepekema i ke ʻano a me nā waiwai o ka wahi hana weld a me ka wahi metala kumu, me ka manaʻo e hāʻawi i kahi kuhikuhi no ka hana ʻana a me ka hoʻohana ʻana i nā coils welded tailor-welded.

ʻO ka mea hoʻokolohua a 3.5mm mānoanoa pāʻoihana titanium maʻemaʻe me ka inoa brand TA1. Ma ka hoʻohana ʻana i ka mīkini wili plasma maʻemaʻe Nertamatic 450, ua hoʻopaʻa ʻia ʻelua mau papa titanium maʻemaʻe i hoʻopili ʻia i loko o kahi papa anuanu piha me nā ana o 3.5mm × 1350mm × 1520mm. Ua hoʻohana ʻia ka XXH2005 X-ray flaw detector e hana i ka hoʻāʻo ʻole i ka hoʻāʻo ʻana i nā welds o nā papa hāpana welded, a ua nānā ʻia ka microstructure o ka metala kumu a me nā welds me kahi microscope metallographic. ʻO nā papa e hele ana i ka nānā ʻana i ka hewa e ʻōwili ʻia i loko o ʻelua ʻōwili ʻia ma kahi wili wili anuanu 1780mm: ʻo ka deformation i ka holo mua ʻana he 43%, ua hoʻemi ʻia ka mānoanoa o ka pā i 2mm, a me ka annealing ma 680 ℃ × 30min. Hana ʻia ka AC ma hope o ka ʻōwili ʻana; ʻO ka nui o ka deformation i ka lua o ka holo ʻana he 50%, a loaʻa ka pā i hoʻopau ʻia me ka mānoanoa o 1mm. Ma hope o ka ʻōwili ʻana, hoʻopili ʻia ma 650 ℃ × 30min / AC.

E hana i ka X-ray no ka hoʻopōʻino ʻole ʻana ma ka ʻāpana hana weld plate o nā ala ʻelua; e hana i ka nānā ʻana i ka microstructure metallographic ma luna o nā laʻana weld i hoʻowili ʻia a annealed o nā ala ʻelua; hana i nā laʻana i hoʻopili ʻia o nā kaʻa kaʻa ʻelua Ua hoʻāʻo ʻia ka paʻakikī a me ka mahana wela o ka lumi; Ua hoʻohana ʻia ka mīkini hoʻāʻo kīʻaha MTS ETC1604 e hana i nā hoʻāʻo kīʻaha ma nā papa i hoʻopau ʻia e nānā i ka hana hana; Ua hoʻohana ʻia ka ʻōnaehana hoʻāʻo electrochemical PARSTAT-2273 (ʻo ka electrode reference he calomel electrode saturated, Ke hoʻohana nei ka electrode auxiliary i kahi electrode platinum, a ʻo ka wai corrosive he 3.5% NaCl aqueous solution). Hana ʻia kahi hoʻāʻo polarization anodic ma ka pā i hoʻopau ʻia e nānā i ke kūpaʻa corrosion. nā hopena hoʻāʻo:

(1) ʻO ka maikaʻi o ka weld o nā papa titanium maʻemaʻe ma hope o ka hoʻopili ʻana i ka plasma a me nā papa titanium maʻemaʻe ma hope o ʻelua mau annealing deformation anuanu e hoʻokō i nā koi o ka Grade I o ka maʻamau JB/T 4730.2.

(2) Ma hope o ʻelua mau hoʻoheheʻe ʻia ʻana o ka pā anuanu, ʻoi aku ka liʻiliʻi o ka nui o ka ʻāpana hana weld ma mua o ka wahi metala kumu, ʻoi aku ka maikaʻi o ka plasticity ikaika, a ʻoi aku ka kiʻekiʻe o ka Vickers microhardness.

(3) Ma hope o ka hoʻoheheʻe ʻana i ka deformation annealing i loko o ʻelua ʻōwili holo, ʻaʻole ʻokoʻa loa ka elongation o ka wahi hana weld o ka pā mai ka metala kumu, ua like ke kumukūʻai kīʻaha, a ua like ke kaʻina hana me ka metala kumu.

(4) ʻAʻohe ʻokoʻa ʻokoʻa ma waena o ka hana anodic polarization o ka weld processing area a me ke kumu metala, a ʻo ke kūpaʻa corrosion o nā mea ʻelua ma 3.5% NaCl aqueous solution he like.

ʻO ka mea i luna nei ka hōʻuluʻulu manaʻo o ka mea hoʻoponopono i ka hopena o ka hoʻoili ʻana i ke anuanu ka hana weld a me ka hana ʻana o nā papa titanium maʻemaʻe ʻoihana. Inā loaʻa iā ʻoe nā pono huahana, e ʻoluʻolu e kelepona mai iā mākou i ka manawa.