E kamaʻilio mua kākou e pili ana i ka ʻili kumu o ka paipu kila kuhiliʻole: NO. Hoʻohana maʻamau no nā mea i ʻōwili ʻia i ke anu, nā pahu ʻoihana, nā mea hana kemika, a me nā mea ʻē aʻe, me nā mānoanoa mānoanoa mai ka 2.0MM-8.0MM. ʻAʻohe ʻili: NO.2D Ma hope o ke kaʻa ʻana o ke anu, ka mālama ʻana i ka wela, a me ka pickling, palupalu ka mea a he ʻeleʻele keʻokeʻo keʻokeʻo ka ʻili. Hoʻohana ʻia ia no ka hoʻoili ʻana i ka stamping hohonu, e like me nā ʻāpana kaʻa, nā paipu wai, etc.

ʻO nā ʻano hana like ʻole a me nā pae, nā ʻano like ʻole, a me nā hoʻohana ʻana e alakaʻi i nā ʻano lapaʻau like ʻole, a ke koi nui ʻia ka nānā a me ka akahele i ka noi.

ʻO ka hoʻomaʻamaʻa ʻana i ka ʻili o nā paipu kila spiral e hoʻohana nui i nā mea hana e like me nā pulupulu uea e poli i ka ʻili o ke kila e wehe i nā unahi ʻokiʻoki a hāpai ʻia paha, ʻōpala, welding slag, a me nā mea ʻē aʻe. ʻO ka wehe ʻana i ka ʻōpala o nā mea hana mana hiki ke hiki i ka pae Sa3. Inā hoʻopili ʻia ka ʻili o ka mea kila i kahi unahi hao oxide ikaika, ʻaʻole kūpono ka hopena hoʻohemo ʻana o ka mea hana a ʻaʻole hiki ke hoʻokō ʻia ka hohonu o ka heleuma i koi ʻia no ka hana anti-corrosion.

ʻO ka lauoho lauoho: ʻO HL NO.4 kahi huahana me kahi hiʻohiʻona wili i hana ʻia e ka wili mau ʻana me ke kāʻei polishing o ka nui o nā ʻāpana kūpono (subdivision No. 150-320). Hoʻohana nui ʻia no ka hoʻonaninani hale, nā elevators, nā puka hale, nā panels, etc.

ʻO ka ʻili ʻālohilohi: ʻO ka BA kahi huahana i loaʻa ma ka ʻōwili anu, ka hoʻoheheʻe ʻana a me ka hoʻomāmā. ʻOi aku ka maikaʻi o ka ʻālohilohi o ka ʻili a he kiʻekiʻe ka reflectivity. Me he ili aniani la. Hoʻohana ʻia i nā mea hana hale, nā aniani, nā lako kīhini, nā mea hoʻonaninani, etc.

Ma hope o ka hoʻokuʻu ʻia ʻana o ka ʻōpala o nā paipu kila spiral, ʻaʻole hiki iā ia ke hoʻonui i ka hopena adsorption kino o ka ʻili paipu akā e hoʻoikaika pū i ka hopena mechanical adhesion ma waena o ka papa anti-corrosion a me ka ʻili paipu. No laila, ʻo ka hoʻoheheʻe ʻia ʻana o ka ʻōpala he ala maikaʻi loa ia e hoʻopau ai i ka ʻōpala no ka pipeline anti-corrosion. ʻO ka ʻōlelo maʻamau, hoʻohana nui ʻia ka hoʻopau ʻana i ka ʻōpala (ke one) no ka mālama ʻana i ka ʻili o loko a me waho o nā paipu, a hoʻohana nui ʻia ka hoʻoneʻe ʻana i ka lepo no ka mālama ʻana i nā paipu.