1. ʻO ka paipu kila maʻemaʻe ka lōʻihi o ke kila me ka humuhumu ʻole a puni, a he ʻaoʻao kea kona. Hoʻohana nui ʻia e like me ka pipeline kila no ka lawe ʻana i nā wai. Ke hoʻohālikelike ʻia me ke kila paʻa, ʻoi aku ka maʻalahi o ke kaumaha ke like ke kulou a me ka ikaika torsion. ʻO ke kila ʻāpana kūʻai waiwai i hoʻohana nui ʻia i ka hana ʻana i nā ʻāpana a me nā ʻāpana mechanical, e like me nā pahu kaʻa kaʻa, nā paipu ʻaila ʻaila, nā papa paikikala, a me nā scaffolding kila i hoʻohana ʻia i ke kūkulu ʻana.

2. ʻO ka paipu kila welded he paipu kila i hanaʻia e ka wiliʻana i nā papa kila a iʻole nā'āpana kila ma hope o ka'ōwiliʻia a me ka hanaʻana. He maʻalahi ke kaʻina hana o nā paipu kila welded, me nā ʻano like ʻole a me nā kikoʻī, ʻoi aku ka liʻiliʻi o nā lako hana, a me ka hana kiʻekiʻe o ka hana, akā ʻoi aku ka haʻahaʻa o kona ikaika ma mua o nā paipu kila ʻole. Me ka hoʻomohala wikiwiki ʻana o ka hoʻomau ʻana i ka hana ʻana o ke kila kila kiʻekiʻe a me ka holomua o ka welding a me ka ʻenehana nānā ʻana, hoʻomau ka maikaʻi o nā welds, ke hoʻonui nei nā ʻano a me nā kikoʻī o nā paipu kila welded i kēlā me kēia lā, a ua hoʻololi lākou i ka seamless. nā paipu kila ma nā kula nui aʻe. Hoʻokaʻawale ʻia nā paipu kila welded i nā paipu kila wiliwili a me nā paipu kila wili pololei e like me ke ʻano o ka weld. ,

He maʻalahi ke kaʻina hana o ka paipu kila wili wili pololei, haʻahaʻa ke kumu kūʻai, hoʻomohala wikiwiki, a me ka hana kiʻekiʻe. ʻOi aku ka ʻoi aku o ka ikaika o nā paipu kila i wiliwili ʻia ma mua o nā paipu kila wili pololei. Hiki ke hana ʻia nā paipu kila welded me nā anawaena nui aʻe mai nā billet ʻoi aku ka liʻiliʻi, a ʻo nā paipu kila welded me nā anawaena like ʻole hiki ke hana ʻia mai nā billet o ka laulā like. Eia nō naʻe, ke hoʻohālikelike ʻia me nā paipu kila seam pololei o ka lōʻihi like, ua hoʻonui ʻia ka lōʻihi weld e 30 ~ 100%, a ʻoi aku ka wikiwiki o ka hana. No laila, ʻoi aku ka liʻiliʻi o ke anawaena o nā paipu kila i hoʻohana ʻia i ka wiliwili wili pololei, ʻoiai ʻo nā paipu kila wiliwili nui ke hoʻohana nei i ka wiliwili spiral.