ʻO ka hoʻohālikelike o nā kaʻina hana o ka paipu lsaw a me ka paipu dsaw

ʻO nā paipu Longitudinal Submerge-arc Welded pōkole no ka paipu LSAW he ʻano paipu kila nona ke kuʻi kuʻi ʻana he longitudinally like me ka paipu kila, a ʻo nā mea maka he pā kila, no laila hiki ke kaumaha ka mānoanoa o ka pā o nā paipu LSAW no ka laʻana 50mm , ʻoiai ke anawaena o waho i kaupalena ʻia i ka 1420mm loa loa.Loaʻa i ka paipu LSAW ka maikaʻi o ke kaʻina hana maʻalahi, ka hana kiʻekiʻe kiʻekiʻe, ke kumu kūʻai haʻahaʻa.

ʻO ka paipu Papalua Submerged Arc Welded (DSAW) he ʻano wiliwili wiliwili seam steel paipu i hana ʻia me ke kila coil e like me ka mea maka, hoʻomehana pinepine ʻia a wili ʻia e ke kaʻina hana hoʻoheheʻe arc ʻelua ʻaoʻao.No laila, hiki ke 40 mika ka lōʻihi o ka paipu DSAW a ʻo ka lōʻihi hoʻokahi o ka paipu LSAW he 12 mika wale nō.Akā ʻo ka mānoanoa o ka pā o nā paipu DSAW hiki ke 25.4mm wale nō ma muli o ka palena o nā ʻōwili wela.

ʻO kahi hiʻohiʻona koʻikoʻi o ka paipu kila spiral ʻo ia ka hiki ke hana nui ʻia ke anawaena o waho, ʻo Cangzhou Spiral Steel Pipes Group Co.ltd hiki ke hana i nā paipu anawaena nui me ke anawaena o waho 3500mm loa.I ka wā o ke kaʻina hana, ua deformed like ka coil kila, liʻiliʻi ke koena koʻikoʻi, a ʻaʻole i haki ʻia ka ʻili.ʻOi aku ka maʻalahi o ka paipu kila spiral i hoʻopaʻa ʻia i ka nui o ke anawaena a me ka mānoanoa o ka paia, ʻoi aku ka maikaʻi o ka hana ʻana i ka paipu mānoanoa kiʻekiʻe, ka pā nui o ka pā, a me ke anawaena liʻiliʻi me ka paipu mānoanoa o ka pā nui, a he mau mea maikaʻi ʻole ma mua o nā kaʻina hana ʻē aʻe.Hiki iā ia ke hoʻokō i nā koi hou aku o nā mea hoʻohana i nā kikoʻī paipu kila kila.Hiki i ke kaʻina hana hoʻoheheʻe ʻana i ka lua ʻaoʻao ʻelua ke hoʻomaopopo i ka welding ma ke kūlana maikaʻi loa, ʻaʻole maʻalahi ka loaʻa ʻana o nā hemahema e like me ka misalignment, ka hoʻokaʻawale ʻana a me ke komo ʻole ʻana, a maʻalahi ka mālama ʻana i ka maikaʻi o ka welding.Eia naʻe, ke hoʻohālikelike ʻia me ka paipu seam pololei me ka lōʻihi like, piʻi ka lōʻihi weld e 30 ~ 100%, a haʻahaʻa ka wikiwiki o ka hana.