He alakaʻi a ka ʻenekinia no ke koho ʻana i ka paipu kila kūpono

He nui nā koho a ka ʻenekinia i ke koho ʻana i ka paipu kila kūpono no kēlā me kēia noi. ʻO nā papa 304 a me 316 mau paipu kila kila ka mea maʻamau. Eia nō naʻe, hāʻawi pū ʻo ASTM i nā ʻenekinia me ka hopena maikaʻi loa no kā lākou noi. Ma ka hahai ʻana i nā kuhikuhi kikoʻī, hoʻokō ʻo ia i nā pahuhopu kālā ʻoiai e hāʻawi mau ana i ka hana i koi ʻia i ke ola o ka huahana.

Inā paha e koho maʻemaʻe a welded paha
Ke koho ʻana i ka mea paipu, he mea nui e ʻike inā pono ʻole a welded paha. Hana ʻia ka paipu kila kuhili ʻole 304 mai kahi mea kiʻekiʻe i ʻike ʻia. Hana ʻia nā paipu seamless e ka extrusion, kahi kaʻina ʻāhi wela kiʻekiʻe, a i ʻole ke kuʻi ʻana, kahi kaʻina haehae i loko. Hāʻawi pinepine ʻia nā paipu seamless no ka mānoanoa o ka pā kiʻekiʻe i hiki iā lākou ke kū i nā kaiapuni kiʻekiʻe.
Hoʻokumu ʻia kahi paipu welded ma ka ʻōwili ʻana i ka lōʻihi o ke kaula kila i loko o ka cylinder, a laila hoʻomehana a hoʻopaʻa ʻia nā ʻaoʻao a lilo i paipu. He emi ke kumu kūʻai pinepine a ʻoi aku ka pōkole o nā manawa alakaʻi.

NA MANAO WAIWAI
Hoʻololi nui nā kumukūʻai ma muli o ka nui i kūʻai ʻia, loaʻa a me ka ratio OD-to-wall. ʻO ka hoʻolako ʻana a me ke koi ʻana o nā mea ʻē aʻe i hoʻokuʻu i nā kumukūʻai ma nā wahi āpau. Ua piʻi a hāʻule nui nā kumukūʻai Nickel, keleawe a me ka molybdenum i nā makahiki i hala iho nei, me ka hopena nui i nā kumukūʻai o ka paipu kila. ʻO ka hopena, pono e mālama pono i ka wā e hoʻonohonoho ai i nā pūlāwai wā lōʻihi no nā huila i hoʻohui ʻia ʻoi aku ka kiʻekiʻe e like me TP 304, TP 316, cupro-nickel a me nā alloys i loaʻa ka 6% molybdenum. ʻOi aku ka paʻa a me ka wānana ʻana i nā ʻāpana nickel haʻahaʻa e like me Admiralty Brass, TP 439 a me nā super ferritics.