He hua'ōlelo maʻamau ka paipu welded longitudinally nui. Hana ʻia ia e kahi kaula kila. ʻO nā paipu i hoʻopaʻa ʻia e nā mea hoʻoheheʻe kiʻekiʻe i kapa ʻia nā paipu longitudinally welded. (Ua hāʻawi ʻia ka inoa no ka mea aia nā wili o ka paipu kila ma kahi laina pololei). Ma waena o lākou, e like me nā kumu like ʻole, aia nā ʻano hana hana hope hope. (Hoʻokaʻawale ʻia i ka paipu scaffolding, ka paipu wai, ka pahu uea, ka paipu bracket, ka paipu kiaʻi, etc.)

maʻamau,paipu kila humu pololeime ke anawaena ma luna o 325 ua kapa ʻia nā paipu kila nui. ʻO ke kaʻina hana hoʻoheheʻe ʻana o ka nui-anawaena mānoanoa-walled longitudinal seam kila paipu he pālua ʻaoʻao submerged arc wiliwili ʻenehana, a hiki ke hoʻokō ʻia ka wili lima ma hope o ka hoʻokumu ʻia ʻana o ka paipu kila. ʻO ke ʻano o ka nānā maʻamau ʻo ka ʻike kīnā. Ma hope o ka loaʻa ʻana o ka hemahema, hiki ke hāʻawi ʻia. Pono e wili hou ʻia nā huahana substandard. ʻO nā paipu kila maʻemaʻe me ka pā nui ke anawaena he kūpono ia no ka lawe ʻana i nā wai, ke kākoʻo ʻana i nā hale kila, a me ka puʻu. Hoʻohana nui ʻia lākou i ka petrochemical, kūkulu, ʻenekinia wai, ʻoihana mana, ʻoihana mahiʻai, kūkulu kūlanakauhale, a me nā mea ʻē aʻe. hookahi minute. Ua ʻae ʻia ke ʻano o ka ʻike hewa ʻana o kēia manawa e pani i ka hoʻāʻo hydraulic. ʻO nā ʻano hana hoʻoheheʻe ʻia ʻo UOE, RBE, JCOE, a me nā mea ʻē aʻe, ma waena o JCOE ka nui o ka hoʻohana. Hiki ke hoʻopaʻa ʻia ka hopena o ka paipu e like me nā koi o ka mea kūʻai aku, i kapa ʻia ʻo threaded a unthreaded.

ʻO ke kaʻina hana o ka nui anawaena pololei seam paipu kila:

ʻO ke kaʻina hana o nā paipu kila hili pololei ke anawaena he nui nā ʻano hana e like me ka ʻōwili wela, ka wili wela, a me ka hoʻolei ʻana. Hoʻohana maʻamau nā paipu kila mānoanoa nui me ka ʻaoʻao ʻelua. Hoʻopili ʻia nā huahana, welded, welded i loko, a hana ʻia ma waho. ʻO ka welding, straightening, flat heading, a me nā kaʻina hana ʻē aʻe e hoʻokō i nā koi o nā kūlana petrochemical.

Hoʻohana nui ʻia ka hoʻohana ʻana i nā paipu kila hili pololei no nā ʻāpana kākoʻo o ke kino, e like me ke alahaka piling, subsea piling, a me nā hale kiʻekiʻe.

ʻO nā mea i hoʻohana ʻia no nā paipu kila hili pololei ke anawaena he Q345B a me Q345C. Hoʻohana pū ʻia ʻo Q345D ma nā wahi me nā haʻahaʻa haʻahaʻa. Hoʻohana nui ʻia nā paipu kila hili pololei Q345E i ke kūkulu ʻia ʻana o ke kila kila nui.