ASTM A179 / ASME SA179 Nā Paipu Hoʻololi Wela - BLOG

Hoʻolauna

ʻO ka ASTM A179 / ASME SA179 ka wehewehe ʻana i nā paipu kila kabone haʻahaʻa, -huki ʻia, haʻahaʻa{3}} no ka hoʻoili wela kūpono a me ka hoʻokō pono ʻana. Me ka li'ili'i loa -kūkulu pā a me ka mana metala ikaika, ho'ohana nui 'ia kēia mau paipu i nā mea ho'ololi wela a me nā condensers ma nā 'oihana ho'oma'ema'e, petrochemical, a me ka mana.Hāʻawi ʻo Octal Pipe i nā paipu A179/SA179 no ka EPC honua a me nā mea hana, e kāko'o ana i nā paipu ha'aha'a a me nā hui piko U-.

Hoʻohui Kimia

Hoʻonui ka -kemika kalapona haʻahaʻa i ka hana anu no ka U-piʻo a me ka paipu-a-hoʻonui pepa.

ʻElemu	Pono (wt%)	Mea nui ʻenekinia
Kalapona (C)	0.06–0.18	Mālama i ka ductility no ka hana ʻana
Manganese (Mn)	0.27–0.63	Ka hoʻoikaika a me ka deoxidation
ʻOka (P)	He emi a like paha me 0.035	Hoʻopaʻa i ka palupalu
Sulfur (S)	He emi a like paha me 0.035	Maʻemaʻe i loko o ka ʻili a me ka weldability

Na Waiwai Mechanical

Waiwai	Pono liʻiliʻi	Hana i nā mea hoʻololi wela
Ikaika U'i	ʻOi aku a i ʻole like me 325 MPa (47 ksi)	palena palekana hale
Ka ikaika hua	ʻOi aku a i ʻole like me 180 MPa (26 ksi)	Hoʻomalu i ka deformation i ka wā o ka hoʻokumu ʻana
ʻO ka elongation	ʻOi aku ma mua a i ʻole like me 35%	Koʻikoʻi no ka hoʻonui palekana
ʻoʻoleʻa	He emi a like paha me 72 HRB	Kāohi i ka pohā i ka wā U-piko

Hiki i kēia mau waiwai ke hana palekana a me ka lawelawe paʻa i nā pūʻolo exchanger.

astm a179 asme sa179 heat exchanger tubes bundle in stock -octal pipe seamless cold drawn low carbon steel condenser tubes a179 sa179 -octal pipe

Hana Hana a me ka wela

Hoʻopuka ʻia nā paipu ASTM A179 / ASME SA179 ma o ke kahe hana hana ʻole i hoʻopaʻa ʻia a ukali ʻia e ke kaha kiʻi anuanu no ka loaʻa ʻana o ka ʻae ʻana o ka nui a me ka ʻili o loko no ka hoʻomaikaʻi ʻana i ka wela -pono.

Kaʻina hana ʻole

Hollow billet → hou ʻia → hana wela → multi-pass anu kiʻi

Mālama ka mana ana i ka loaʻa pololei ʻana o ka palena liʻiliʻi -koi

Hoʻonui ke kaha kiʻi anuanu i ka hoʻopau ʻana o ka ʻili a me ka hoʻomaʻemaʻe o loko-koʻikoʻi i ka hōʻemi ʻana i ka ʻino i nā mea hoʻololi wela.

Lapaʻau wela hope

Ma hope o ka huki anu -hope, mālama ʻia nā paipu i ka welaʻOi aʻe a i ʻole like me 1200 degere F ( ʻoi aku ma mua a i ʻole like me 650 degere)i:

Hoʻokuʻu i nā koʻikoʻi i koe mai ka hana anu
Hoʻihoʻi i ka ductility pono noU-pili a me ka hoʻonui ʻia ʻana o ka pepa paipu
E hoʻomaikaʻi i ka paʻa -manawa lōʻihi ma lalo o nā haʻawe wela cyclic

Kūlana ʻili a me ka hoʻomākaukau ʻana

Hāʻawi ʻiaunahi -noae mālama i ka hana wela maikaʻi loa
ʻO nā hopenamaʻemaʻe a burr -free, e hōʻoia ana i ka weldability a i ʻole ka hoʻonui mechanical i ka wā o ka hui
E kōkua ana kēia hana hana a me ka ho'omalu metala e hō'oia i ka lō'ihi o ka lawelawe 'ana, ka hilina'i o ke kūkulu 'ana, a me ka ho'okomo pono 'ana i nā pū'olo ho'ololi ho'ololi ki'eki'e.

Nānā & Ho'āʻo

E like me ASTM A179 a me ASTM A450/A450M:

Mea Nānā	Ke kumu
Hōʻike hydrostatic a i ʻole NDE	Leak{0}}hōʻoia paʻa
Ho'āʻo palahalaha	Nānā maikaʻi a me ka ductility
ʻO ka hoʻāʻo ʻana i ke ahi / pani pani	Hōʻoia i ka hiki ke hoʻonui i ka tubesheet
Hoao paakiki	ʻO ka hōʻoia ʻana-hana anu
Mākaʻikaʻi & MTC	Kākoʻo i nā loiloi QA a me nā loiloi papahana

ʻEnekinia & Kūʻai Pono

Māhele	Alakaʻi ʻenekinia	Ka mea e hoakaka
Nui o ka Paipu	OD 3.2–76.2 mm (1/8–3 in)	OD × Mānoanoa Pā liʻiliʻi × Ka lōʻihi
ʻAno hiki	He kūpono no ka U-piʻo a hoʻonui	Min. ʻOi aku ka nui a i ʻole like me 2–2.5 × OD
Kūlana ʻili	Ka hoʻomalu ʻana a me ka hana wela	Pākuʻi -noa me nā ʻaoʻao pale
Papa Nānā	Ma muli o ke koʻikoʻi o ka ʻōnaehana	Nā hoʻāʻo hydrostatic/NDE + ductility
Palapala	Hooia & hoʻokō code	MTC me ka hiki ke huli piha
Packaging & Logistics	Kāohi i ka ʻino a me nā hopena	Palena -ma ka moana

Hoʻokahi ʻāpana e kākoʻo ana i nā mea ʻeluahoʻolālāakuai ananā hoʻoholo.

Nā noi

ʻO nā mea hoʻololi wela o ka pūpū a me ka pūpū
Mea hoʻolele mana-mea kanu
Nā kaʻaahi hoʻoluʻu hoʻoheheʻe
ʻO nā mea hoʻoheheʻe ʻenehana a me nā mea hoʻoluʻu ea
Kaʻina hana hoʻolele wela
No ka chloride-mea hoʻolaha a i ʻole ka wai kai:
e noʻonoʻo i ka hāʻawi ʻana i ka corrosion, ka uhi ʻana, a i ʻole nā mea i hoʻonui ʻia e like me ASTM A213.

astm a179 heat exchanger tube ends close up bundle packaging -octal pipe

Hōʻuluʻulu manaʻo

Hāʻawi ka ASTM A179 / ASME SA179 i nā paipu hoʻololi wela maikaʻi loa i ka hoʻololi ʻana i ka wela maikaʻi loa, hiki ke hoʻokumu pono ʻia, a me ka hana i hōʻoia ʻia i nā ʻāpana hoʻoluʻu ʻoihana.

Hāʻawi ʻo Octal Pipe i nā paipu A179/SA179 hiki ke loaʻa me ka U-pili hana, palapala MTC piha, a me ka nānā ʻana o ka BV / ABS., e hōʻoia ana i ka hoʻokō ʻana i nā papahana exchanger koi.

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