ʻO ke kila pipeline hou he kila microalloyed haʻahaʻa a i ʻole ultra-low-carbon microalloyed, kahi huahana me ka ʻenehana kiʻekiʻe a me ka waiwai hoʻohui kiʻekiʻe.ʻO ka hapa nui o nā ʻenehana hou i hoʻokō ʻia i ke kahua metallurgical i nā makahiki 20 i hala iho nei ua hoʻohana ʻia i ka hana ʻana i ke kila pipeline.ʻO ke ʻano hoʻomohala o ka ʻenekinia pipeline he anawaena paipu nui, ka lawe ʻana i ke kinoea waiwai kiʻekiʻe, ka hoʻoluʻu kiʻekiʻe, ka hoʻohana ʻana i ka corrosion kiʻekiʻe, a me ka mānoanoa o ka pā paipu subsea.No laila, ʻo ke kila pipeline hou e loaʻa i ka ikaika kiʻekiʻe, haʻahaʻa Bauschinger hopena, kiʻekiʻe toughness a me brittleness kū'ē, haʻahaʻa weld kalapona maʻiʻo a me ka maikaʻi weldability, a me ke kū'ē i HIC a me H2S corrosion.
Hoʻohana ʻia ka pā hao pipeline no ka hana ʻana i nā paipu laina welded, no ka mea, ua hana ʻia nā paipu laina seamless me ka pā poepoe, ʻaʻole nā papa kila.Hoʻohana maʻamau ka pā mānoanoa no ka hana ʻana i ka paipu wili wili pololei i ka paia mānoanoa, a hoʻohana ʻia ke kila coil no ka hana ʻana i ka paipa welded resistane welded (ERW) a me ka paipu arc welded (SSAW) spirally submerged arc welded (SSAW).I kēia mau lā, ʻoi aku ka nui o nā mea kūʻai aku e koi i ka pā hao pipeline e hana i nā paipu laina no ka mea hiki ke hoʻohana ʻia nā papa kila e hana i nā paipu anawaena nui aʻe, ʻoi aku ka haʻahaʻa o ke kumukūʻai o nā paipu welded ma mua o nā paipu seamless.
Line paipu kila pā he kī mea no ka hana ana o ERW laina paipu, LSAW laina paipu, SSAW laina paipu, i hoʻohana 'ia i ka paipu laina hana i loko o ka aila, kinoea a me ka wai lawe, hiki ke hoʻohana 'ia i loko o ka manufacturing kaomi wai hoʻoili hana.
ʻO nā mahana arctic haʻahaʻa haʻahaʻa loa, nā kaomi nui i ka moana hohonu, ka media waika: ʻo nā kūlana ʻino loa ʻaʻohe hopena maikaʻi ʻole i kā mākou mau papa laina.Hiki i nā papa laina laina ke hana i ka hohonu a hiki i ka 2,800 mika ma lalo o ka ʻili kai.
Hāʻawi pū mākou i ka ʻōwili i hoʻopaʻa ʻia i waho o ke kahakai structural plate steel me ka corrosion-resistant cladding no nā koi kiʻekiʻe loa i ka noi kinoea.Ma ke ʻano he loea i ka ʻenehana thermo mechanical rolling hou me ka hoʻoheheʻe wikiwiki ʻana, aia mākou i waena o nā alakaʻi ʻoihana honua.
