Nūhou - Nā ʻano a me ke alakaʻi kūʻai ʻana no nā paipu maʻemaʻe a me ka welded

ʻO ka paipu kila kalapona, he mea maʻamau i hoʻohana nui ʻia i ka ʻoihana ʻoihana, hana nui i nā ʻoihana e like me ka petroleum, ʻenekinia kemika, a me ke kūkulu ʻana. Hoʻokaʻawale ʻia nā paipu kila kalapona maʻamau i ʻelua ʻano:paipu kila ʻoleapaipu kila welded.

Nā ʻokoʻa i ka hana hana

Ma ke ʻano o ke kaʻina hana a me ka hoʻolālā, hoʻokumu ʻia ka paipu kila ʻole ma o ka ʻōwili integral a extrusion paha, me ka ʻole o nā seams welded. Hāʻawi ia i ka ikaika holoʻokoʻa kiʻekiʻe a me ka paʻakikī, hiki ke kū i nā ʻoi aku ke kiʻekiʻe a me nā mahana, a kūpono i nā noi e koi ana i nā koi palekana paipu.

ʻO ka paipu kila welded, ma kekahiʻaoʻao, ua hanaʻia e ka'ōwili a me ka hoʻopiliʻana i nā papa kila, me hoʻokahi aʻoi aku paha. ʻOiai ke hāʻawi nei kēia i ka pono hana kiʻekiʻe a me ke kumukūʻai haʻahaʻa, ʻoi aku ka haʻahaʻa o kāna hana ma lalo o ke kaomi kiʻekiʻe a me nā kaiapuni koʻikoʻi i ka paipu seamless.

Hoʻohana mau ʻia no nā ʻano like ʻole o ka paipu hao kalapona

No ka paipu kila ʻole, Q235 a me A36 nā māka kaulana. ʻO ka paipu kila Q235 ka mea maʻamau i hoʻohana ʻia ma Kina. Me ka ikaika hua o 235 MPa, hāʻawi ia i ka weldability maikaʻi loa a me ka ductility i ke kumu kūʻai. Hoʻohana nui ʻia ia i ke kūkulu ʻana i ke kākoʻo kūkulu, nā paipu wai haʻahaʻa haʻahaʻa, a me nā noi ʻē aʻe, e like me nā paipu wai wai noho a me ke kūkulu ʻana i ke kila o nā hale hale hana maʻamau.

A36 paipu kila kalaponahe papa maʻamau ʻo US. Ua like kona ikaika me ka Q235, akā hāʻawi ia i ka ikaika tensile kiʻekiʻe a me ka paʻakikī paʻakikī. Hoʻohana nui ʻia ia i nā pipeline haʻahaʻa haʻahaʻa i ka hana mīkini a me ka hana ʻaila, e like me ka hoʻoili ʻana i nā ʻāpana mīkini liʻiliʻi a me nā paipu ʻaila haʻahaʻa haʻahaʻa i nā māla aila.

No ka paipu kila welded,Q235 paipu kilahe papa kaulana no hoi. Ma muli o kāna kumu kūʻai haʻahaʻa a me ka hana hoʻoheheʻe maikaʻi loa, hoʻohana pinepine ʻia ia i ka hoʻouna ʻana i ke kinoea kūlanakauhale a me nā papahana hoʻoili wai haʻahaʻa haʻahaʻa. ʻO ka paipu welded A36, ma ka ʻaoʻao ʻē aʻe, ua hoʻohana pinepine ʻia i nā pipeline ʻoihana haʻahaʻa haʻahaʻa me kekahi mau koi ikaika, e like me nā pipelines halihali haʻahaʻa haʻahaʻa i nā mea kanu kemika liʻiliʻi.

Nā Ana Hoʻohālikelike	Q235 Paipu kila	A36 Paipu hao hao
Pūnaehana maʻamau	Kūlana Kūlana Kūlana Kina (GB/T 700-2006 "Ke kila kila kila")	ʻAmelika Hui Pū ʻIa no ka hoʻāʻo ʻana a me nā mea waiwai (ASTM A36/A36M-22 "Papa kila Carbon, Nā ʻano, a me nā pahu no ka hoʻohana ʻana i ke kūkulu ʻana")
Ka ikaika o ka hua (ka liʻiliʻi)	235 MPa (ka mānoanoa ≤ 16 mm)	250 MPa (i loko o ka laulā mānoanoa piha)
Kaulana ikaika	375-500 MPa	400-550 MPa
Nā Koina Paʻakikī Paʻi	Pono ka ho'āʻo hopena -40°C no kekahi mau māka (e laʻa, Q235D); ʻaʻohe koi koi no nā māka maʻamau.	Nā mea e pono ai: -18 ° C ka ho'āʻo hopena (nā kūlana hapa); ʻoi aku ka maikaʻi o ka paʻakikī haʻahaʻa ma mua o nā māka Q235 maʻamau
Nā Kūlana Hoʻohana Nui	ʻO ka hana kīwila (nā hale kila, nā kākoʻo), nā paipu wai haʻahaʻa/gas, a me nā ʻāpana mīkini maʻamau	ʻO ka hana ʻenehana (nā ʻāpana liʻiliʻi a me ka liʻiliʻi), nā paipu haʻahaʻa haʻahaʻa haʻahaʻa o ka ʻaila, nā paipu wai haʻahaʻa haʻahaʻa ʻoihana.

ʻO ka holoʻokoʻa, nā paipu kila ʻole a welded i kēlā me kēia me ko lākou pono ponoʻī. I ke kūʻai ʻana, pono nā mea kūʻai aku e noʻonoʻo i ke koi a me ka mahana o ka noi kikoʻī, a me kā lākou kālā, a koho i kahi papa kūpono, e like me Q235 a i ʻole A36, e hōʻoia i ka maikaʻi o ka papahana a me ka palekana.