Nā ʻano o nā paipu
Hoʻokaʻawale ʻia nā paipu i ʻelua pūʻulu: nā paipu seamless a me nā paipu welded, e pili ana i ke ʻano hana. Hoʻokumu ʻia nā paipu seamless i hoʻokahi ʻanuʻu i ka wā o ka ʻōwili ʻana, akā pono nā paipu kulou i kahi kaʻina wili ma hope o ka ʻōwili ʻana. Hiki ke hoʻokaʻawale ʻia nā paipu welded i ʻelua ʻano ma muli o ke ʻano o ka hui: spiral welding a me straight welding. ʻOiai ke hoʻopaʻapaʻa nei inā ʻoi aku ka maikaʻi o nā paipu kila ʻole ma mua o nā paipu kila piʻo, hiki i nā mea hana paipu wili ʻole a welded ke hana i nā paipu kila me ka maikaʻi, hilinaʻi, a me ka lōʻihi e kūʻē i ka corrosive loa. Pono ka manaʻo nui i nā kikoʻī noiʻi a me nā ʻāpana kumukūʻai i ka wā e hoʻoholo ai i ke ʻano o ka paipu.

Paipu Seamless
Hana ʻia ka paipu seamless ma nā ʻanuʻu paʻakikī e hoʻomaka ana me ka hollow drilling mai billet, kiʻi anu, a me ke kaʻina ʻōwili anu. No ka hoʻomalu ʻana i ke anawaena o waho a me ka mānoanoa o ka pā, paʻakikī ke ʻano o ke ʻano seamless i ka hoʻohālikelike ʻia me nā paipu welded, hoʻomaikaʻi ka hana anuanu i nā waiwai mechanical a me nā hoʻomanawanui. ʻO ka pōmaikaʻi nui loa o nā paipu seamless ʻo ia ka hiki ke hana ʻia me nā mānoanoa o ka pā mānoanoa a kaumaha. No ka mea, ʻaʻohe weld seams, hiki ke noʻonoʻo ʻia he ʻoi aku ka maikaʻi o nā waiwai mechanical a me ke kūpaʻa corrosion ma mua o nā paipu welded. Eia kekahi, ʻoi aku ka maikaʻi o ka ovality a i ʻole ka poepoe o nā paipu seamless. Hoʻohana pinepine ʻia lākou i nā kūlana kūlohelohe koʻikoʻi e like me nā ukana kiʻekiʻe, nā kaomi kiʻekiʻe, a me nā kūlana corrosive.

Paipu Weled
Hoʻokumu ʻia ka paipu kila welded ma ke kuʻi ʻana i kahi pā kila i ʻōwili ʻia i loko o kahi ʻano tubular me ka hoʻohana ʻana i kahi hui a i ʻole spiral. Ma muli o nā ana o waho, ka mānoanoa o ka paia, a me ka noi, aia nā ʻano like ʻole o ka hana ʻana i nā paipu welded. Hoʻomaka kēlā me kēia ʻano me ka billet wela a i ʻole ka palahalaha, a laila hana ʻia i mau paipu ma ka hohola ʻana i ka billet wela, hoʻopaʻa i nā ʻaoʻao, a hoʻopaʻa ʻia me kahi weld. ʻOi aku ka ʻoi aku o ka ʻae ʻana o nā paipu lauwili akā ʻoi aku ka lahilahi o ka mānoanoa o ka paia ma mua o nā paipu seamless. ʻO nā manawa hoʻopuka pōkole a me nā kumukūʻai haʻahaʻa hiki ke wehewehe i ke kumu e ʻoi aku ka maikaʻi o nā paipu piʻo ma mua o nā paipu ʻole. Eia nō naʻe, no ka mea hiki i nā welds ke lilo i mau wahi koʻikoʻi e haki i ka hoʻolaha ʻana a alakaʻi i ka haki ʻana o ka paipu, pono e hoʻomalu ʻia ka pau ʻana o nā ʻili o waho a me loko i ka wā hana.