ʻO ka hana ʻana i nā paipu kila mai ka makahiki 1800. I ka hoʻomaka ʻana, ua hana ʻia ka paipu e ka lima - ma ka hoʻomehana ʻana, ke kulou ʻana, ka ʻū ʻana, a me ka hāmare ʻana i nā ʻaoʻao. Ua hoʻokomo ʻia ke kaʻina hana paipu automated mua ma 1812 ma ʻEnelani. Ua hoʻomaikaʻi mau nā kaʻina hana mai ia manawa. Ua wehewehe ʻia ma lalo nei kekahi mau ʻenehana hana paipu kaulana.
Lap Welding
Ua hoʻokomo ʻia ka hoʻohana ʻana i ka welding lap no ka hana ʻana i ka paipu i ka makahiki 1920. ʻOiai ʻaʻole hoʻohana hou ʻia ke ʻano, ua hoʻohana mau ʻia kekahi paipu i hana ʻia me ka hoʻohana ʻana i ke kaʻina hana kuʻi lap i kēia mau lā.
Ma ke kaʻina hana kuʻi ʻana, ua hoʻomehana ʻia ke kila i loko o ka umu ahi a laila ʻōwili ʻia i loko o ke ʻano o ka cylinder. ʻO nā kihi o ka pā kila i "scarfed". ʻO ka scarfing ka uhi ʻana i ka ʻaoʻao o loko o ka pā kila, a me ka lihi liʻiliʻi o ka ʻaoʻao ʻaoʻao o ka pā. A laila ua wili ʻia ka hili me ka pōpō wili, a ua hāʻawi ʻia ka paipu wela ma waena o nā wili e hoʻoikaika i ka humuhumu e hana i kahi paʻa.
ʻAʻole hilinaʻi ʻia nā welds i hana ʻia e ka welding lap e like me nā mea i hana ʻia me nā ʻano hana hou. Ua hoʻomohala ka American Society of Mechanical Engineers (ASME) i ka hoʻohālikelike no ka helu ʻana i ke kaomi hana ʻae ʻia o ka paipu, e pili ana i ke ʻano o ka hana hana. Aia i loko o kēia hoohalike kekahi mea ho'ololi i 'ike 'ia he "joint factor", i ho'okumu 'ia ma ke 'ano o ka weld i ho'ohana 'ia no ka hana 'ana i ke hili o ka paipu. Loaʻa i nā paipu seamless kahi kumu hui o 1.0 Lap welded pipe he kumu hui o 0.6.
Paipu Uila Kū'ē
Hana ʻia ka paipu hoʻopaʻapaʻa uila (ERW) e ka hana anu i kahi ʻāpana kila i ke ʻano cylindrical. A laila hele ka ʻāwī ma waena o nā ʻaoʻao ʻelua o ke kila e wela ai ke kila a hiki i kahi i hoʻopaʻa ʻia nā ʻaoʻao e hana i kahi paʻa me ka ʻole o ka hoʻohana ʻana i ka mea hoʻopihapiha hoʻopihapiha. I ka wā mua, ua hoʻohana kēia kaʻina hana i ka haʻahaʻa haʻahaʻa haʻahaʻa AC e wela ai nā kihi. Ua hoʻohana ʻia kēia kaʻina hana alapine haʻahaʻa mai ka makahiki 1920 a hiki i ka makahiki 1970. I ka makahiki 1970, ua hoʻololi ʻia ke kaʻina hana haʻahaʻa haʻahaʻa e kahi kaʻina hana ERW kiʻekiʻe i hana i kahi weld kiʻekiʻe.
I ka hala ʻana o ka manawa, ʻike ʻia nā welds o ka paipu ERW haʻahaʻa haʻahaʻa e hiki ke hoʻohana ʻia i ka corrosion seam selective, nā māwae makau, a me ka hoʻopaʻa pono ʻole o nā humu, no laila ʻaʻole hoʻohana ʻia ka ERW alapine haʻahaʻa no ka hana ʻana i ka paipu. Hoʻohana mau ʻia ke kaʻina hana alapine kiʻekiʻe e hana i ka paipu no ka hoʻohana ʻana i ke kūkulu ʻana i ka pipeline hou.
Pipa Uila Uila
Ua hana ʻia ka paipu uila uila e hoʻomaka ana i ka makahiki 1927. Ua hoʻokō ʻia ka wili uila ma ka hana ʻana i kahi ʻāpana kila i ke ʻano cylindrical. Hoʻomaʻamaʻa ʻia nā ʻaoʻao a hiki i ka semi-hoʻoheheʻe ʻia, a laila hoʻohui pū ʻia a hiki i ka hoʻoheheʻe ʻia ʻana o ke kila hoʻoheheʻe ʻia i waho o ka hui ʻana a hana ʻia he ʻeke. E like me ka paipu ERW alapinepine haʻahaʻa, hiki ke maʻa nā hili o ka paipu wili uila i ka ʻino a me nā māwae makau, akā ʻoi aku ka liʻiliʻi ma mua o ka paipu ERW. Hiki i kēia ʻano paipu ke hiki ke hāʻule ma muli o nā wahi paʻakikī o ka pā kila. No ka mea, ua hana ʻia ka hapa nui o nā paipu uila uila e ka mea hana hoʻokahi, ua manaʻo ʻia ua hana ʻia kēia mau wahi paʻakikī ma muli o ke kinai ʻole ʻia o ke kila i ka wā o ka hana hana i hoʻohana ʻia e kēlā mea hana. ʻAʻole hoʻohana hou ʻia ka wili uila no ka hana ʻana i ka paipu.
Paipu Pahu Pahu Lualua (DSAW).
E like me nā kaʻina hana paipu ʻē aʻe, ʻo ka hana ʻana o Double Submerged Arc Welded Pipe e pili ana i ka hana mua ʻana i nā papa kila i nā ʻano cylindrical. Hoʻokumu ʻia nā ʻaoʻao o ka pā i ʻōwili ʻia i hana ʻia nā ʻāpana V-like ma ka ʻaoʻao o loko a me waho ma kahi o ka seam. Hoʻopili ʻia ka humuhumu paipu e kahi ala hoʻokahi o ka welder arc ma ka ʻaoʻao o loko a me waho (no laila ua palua ʻia i lalo). Hoʻokomo ʻia ka arc welding ma lalo o ka flux.
ʻO ka pōmaikaʻi o kēia kaʻina hana ʻo ia ka welds e komo i ka 100% o ka pā paipu a hana i kahi paʻa ikaika loa o ka mea paipu.
Paipu Seamless
Ua hana ʻia ka paipu seamless mai ka makahiki 1800. ʻOiai ua ulu ka hana, ua mau kekahi mau mea. Hana ʻia ka paipu seamless ma ke kuʻi ʻana i ka billet kila poepoe wela me ka mandrel. ʻO ke kila hollowed ma mua o ka ʻōwili ʻia a hoʻolōʻihi ʻia e hoʻokō i ka lōʻihi a me ke anawaena i makemake ʻia. ʻO ka pōmaikaʻi nui o ka paipu seamless ka hoʻopau ʻana i nā hemahema pili i ka seam; akā, ʻoi aku ka nui o ke kumukūʻai o ka hana ʻana.
Hiki ke hoʻopili ʻia ka paipu maʻemaʻe mua i nā hemahema i hoʻokumu ʻia e nā haumia o ke kila. I ka hoʻomaikaʻi ʻana o nā ʻenehana hana kila, ua hōʻemi ʻia kēia mau hemahema, akā ʻaʻole i hoʻopau loa ʻia. ʻOiai me he mea lā e ʻoi aku ka maikaʻi o ka paipu seamless ma mua o ka hoʻokumu ʻia ʻana o ka paipu seam-welded, ua kaupalena ʻia ka hiki ke hoʻomaikaʻi i nā ʻano i makemake ʻia i ka paipu. No kēia kumu, loaʻa ka paipu seamless i nā papa haʻahaʻa a me ka mānoanoa o ka paia ma mua o ka paipu welded.
He loea ʻo Jindalai Steel Group i ka hana ʻana i nā paipu ERW (Electric Resistance Welded) a me SSAW (Spiral Submerged Arc welded). Ua holomua kā mākou hui i ka φ610 mm kiʻekiʻe-frequency straight seam resistance wili mīkini, a me φ3048mm spiral submerged arc welded machine. Eia kekahi, ma waho aʻe o nā hale hana ERW a me SSAW, loaʻa iā mākou ʻekolu mau hale hana pili no ka hana LSAW a me SMLS ma Kina.
Inā kūʻai ʻia kahi paipu i kou wā e hiki mai ana, e noi i kahi ʻōlelo. Hāʻawi mākou i kahi mea e loaʻa pololei iā ʻoe nā huahana āu e makemake ai me ka wikiwiki. E hoʻouna i kāu nīnau a e hauʻoli mākou e nīnau iā ʻoe me ka ʻoihana.
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Ka manawa hoʻouna: Dec-19-2022