Nānā nui

Me kā mākou hoʻokele maikaʻi, mana ʻenehana ikaika a me nā ʻenehana hoʻoponopono kiʻekiʻe kiʻekiʻe, hoʻomau mākou i ka hāʻawi ʻana i kā mākou mea kūʻai aku i nā kumukūʻai maikaʻi loa, kūpono a me nā lawelawe koʻikoʻi. Manaʻo mākou e lilo ʻoiaʻiʻo i hoʻokahi o kāu mau hoa hilinaʻi a loaʻa i kou ʻoluʻolu no ka Alloy Seamless Steel Pipe for High Pressure Boiler, Welina mai nā mea kūʻai aku o ka honua e hoʻokaʻaʻike mai iā mākou no ka ʻoihana a me ka hui lōʻihi. E lilo mākou i hoa pili pono a me ka mea hoʻolako. ʻO kā mākou hui he mea hoʻolako honua ma kēia ʻano mea kūʻai. Hāʻawi mākou i kahi koho kupaianaha o nā hāʻina kiʻekiʻe. ʻO kā mākou pahuhopu ka leʻaleʻa iā ʻoe me kā mākou hōʻiliʻili kūʻokoʻa o nā mea noʻonoʻo ʻoiai e hāʻawi ana i ka waiwai a me ka lawelawe maikaʻi loa. He maʻalahi kā mākou misionari: E hāʻawi i nā huahana a me nā lawelawe maikaʻi loa i kā mākou mea kūʻai aku ma nā kumukūʻai haʻahaʻa loa.

ʻO ka mea hoʻoheheʻe mana hoʻoheheʻe ʻia nā mea hoʻohana maʻamau ʻo 15 crmog15 crmog he 15 crmo steel seamless steel paipu, he ʻano haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, kūpono no ka helu ʻana o ka pā wela ʻaʻole ʻoi aku ma mua o 550 ℃ kiʻekiʻe kiʻekiʻe a me ka mana kiʻekiʻe. hale hoʻokuʻu ʻana i ka paipu mahu nui. ʻO ke kila kila o ke kūlana aupuni GB5310-2017, i ka hāʻawi maʻamau o 15 crmog steel heat treatment state provisions in detail.

Ma muli o ka hoʻohui ʻana o nā mea hoʻohui, a me ka helu ʻana o ke kila carbon equivalent CE 0.43 ~ 0.63, hōʻike ʻia 15 crmog steel weldability nui loa i ka 20 g kila. ʻOi aku ka maʻalahi o ka weld i ka māwae anu, ka hoʻomaʻamaʻa hou ʻana a me ka huhū brittleness, etc. Ma keʻano laulā, ʻoi aku ka maikaʻi o nā kūlana like o 15 crmog ikaika, paʻakikī a me nā mea mechanical ʻē aʻe ma mua o ka 20 g, a me ka hoʻohui ʻana o Cr element e hoʻomaikaʻi i ka oxidation. ke kū'ē o ka mea, ka hoʻohui o Mo mea e hoʻomaikaʻi i ka wela ikaika o ka mea, no laila, 15 crmog kila i ka mana mea kanu boiler nui mahu paipu hoʻohana ma lalo o ke kūlana o ka wela wela, ma ke kumu o ka mechanics hana koi, i ka ia manawa. loaʻa i ka ikaika oxidation kū'ē a me ka wela. E like me ke ʻano o ke kila wela, ka nui o ka momi 15 crmog phase microstructure o ka ferrite a me ka pearlite, lōʻihi ma lalo o nā kūlana wela kiʻekiʻe i hoʻohana ʻia e hana i ka spheroidization pearlite. E like me ka DL/T787-2001 ka lanahu-ahi mea kanu me 15 crmo pearlitic kila spheroidizing paena paena, e like me na ano o ka pearlite spheroidization hui spheroidizing pae hiki ke maheleia i pae 1 a 5, me ka piʻi o ka pae o ka spheroidizing, 15 crmog waiwai mechanical a me ka wela o ke kila e emi ana.

Palapala noi

Hoʻohana nui ia no ka hana ʻana i ke kila kila kila kiʻekiʻe, ke kila hoʻoheheʻe ʻia a me ke kila wela-kū ʻole i nā paipu kila maʻemaʻe no ke kaomi kiʻekiʻe a ma luna o nā paipu paila mahu.

Hoʻohana nui ʻia no ke kiʻekiʻe kiʻekiʻe a me ka lawelawe wela o ka paila (Superheater tube, reheater tube, ea alakaʻi paipu, pahu mahu nui no nā boiler kiʻekiʻe a kiʻekiʻe). Ma lalo o ka hana o ke kinoea flue wela kiʻekiʻe a me ka mahu wai, e oxidize a corrode ka paipu. Pono ka paipu kila i ke kūpaʻa kiʻekiʻe, ke kūpaʻa kiʻekiʻe i ka oxidation a me ka corrosion, a me ka paʻa paʻa.

Papa Nui

Papa o ke kila kila kila kiʻekiʻe: 20g, 20mng, 25mng

Ke kila kila kila: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, etc.

Papa o ke kila wela pale-pale: 1cr18ni9 1cr18ni11nb

Mea Kimia

Waiwai Mekani

Hoʻomanawanui

ʻO ka mānoanoa o ka pā a me ka anawaena o waho:

Inā ʻaʻohe koi kūikawā, e hāʻawi ʻia ka paipu e like me ke anawaena o waho maʻamau a me ka mānoanoa o ka paia. E like me ka pepa ma hope

Ka lōʻihi:

ʻO ka lōʻihi maʻamau o nā paipu kila he 4 000 mm ~ 12 000 mm. Ma hope o ke kūkākūkāʻana ma waena o ka mea hoʻolako a me ka mea kūʻai aku, a hoʻopiha i kaʻaelike, hiki ke hāʻawiʻia i nā paipu kila me ka lōʻihi ma mua o 12 000 mm a iʻole ka pōkole ma mua o I 000 mm akāʻaʻole iʻoi aku ka pōkole ma mua o 3 000 mm; ka lōʻihi pōkole ʻO ka helu o nā paipu kila ma lalo o 4,000 mm akā ʻaʻole i emi iho ma mua o 3,000 mm ʻaʻole ia ma mua o 5% o ka huina o nā paipu kila i hāʻawi ʻia.

Kaumaha lawe:
Ke hāʻawiʻia ka paipu kila e like me ke anawaena o waho a me ka mānoanoa o ka paia nominal a iʻole ke anawaena o loko a me ka mānoanoa o ka paia nominal, e hāʻawiʻia ka paipu kila e like me ke kaumaha maoli. Hiki ke hāʻawi ʻia e like me ke kaumaha theoretical.
Ke hāʻawiʻia ka paipu kila e like me ke anawaena o waho a me ka mānoanoa liʻiliʻi o ka paia, hāʻawiʻia ka paipu kila e like me ke kaumaha maoli; kūkākūkā nā ʻaoʻao hoʻolako a koi. A ua hōʻike ʻia ma ka ʻaelike. Hiki ke hāʻawi ʻia ka paipu kila e like me ke kaumaha theoretical.

Kaumaha kaumaha:
E like me nā koi o ka mea kūʻai aku, ma hope o ke kūkākūkā ʻana ma waena o ka mea hoʻolako a me ka mea kūʻai aku, a ma ka ʻaelike, ʻo ka ʻokoʻa ma waena o ke kaumaha maoli a me ke kaumaha theoretical o ka paipu kila hāʻawi e hoʻokō i kēia mau koi:
a) Paipu kila hoʻokahi: ± 10%;
b) ʻO kēlā me kēia pūʻulu o nā paipu kila me ka liʻiliʻi loa o 10 t: ± 7.5%.

Koi hoao

Hōʻike Hydraustatic:

Pono e ho'āʻo hydraulically ka paipu kila i kēlā me kēia. ʻO 20 MPa ke kaomi hoʻāʻo kiʻekiʻe. Ma lalo o ke kaomi ho'āʻo, ʻaʻole i emi iho ka manawa stabilization ma mua o 10 s, a ʻaʻole e kahe ka paipu kila.

Ma hope o ka ʻae ʻana o ka mea hoʻohana, hiki ke hoʻololi ʻia ka hoʻāʻo hydraulic e ka eddy current testing a i ʻole ka hoʻāʻo leakage flux magnetic.

Ho'āʻo Nondestructive:

ʻO nā paipu e koi aku i ka nānā hou aku e pono ke nānā ʻia me ka ultrasonically. Ma hope o ke kūkākūkā e koi i ka ʻae o ka ʻaoʻao a ua kuhikuhi ʻia i loko o ka ʻaelike, hiki ke hoʻohui ʻia nā hoʻāʻo ʻole luku ʻē aʻe.

Ho'āʻo palahalaha:

ʻO nā paipu me ke anawaena o waho i ʻoi aku ma mua o 22 mm e kau ʻia i kahi hoʻāʻo palahalaha. ʻAʻole pono e ʻike ʻia ka delamination, nā kiko keʻokeʻo, a me nā haumia i ka wā o ka hoʻokolohua holoʻokoʻa.

ʻO ka hoʻāʻo ʻana i ke ahi:

E like me nā koi o ka mea kūʻai aku a i ʻōlelo ʻia ma ka ʻaelike, hiki ke hana ʻia ka paipu kila me ke anawaena o waho ≤76mm a me ka mānoanoa pā ≤8mm. Hana ʻia ka hoʻokolohua ma ka lumi wela me kahi taper o 60 °. Ma hope o ka puhi ʻana, pono e hoʻokō ka nui o ke anawaena o waho i nā koi o ka papa ʻaina aʻe, a ʻaʻole pono e hōʻike ka mea hoʻāʻo i nā māwae a i ʻole nāha.

Huahana Huahana

ʻO nā paipu kila maʻemaʻe no nā paila kiʻekiʻe

GB/T5310-2017

ASME SA-106/SA-106M-2015

ASTMA210(A210M)-2012

ASME SA-213/SA-213M

ASTM A335/A335M-2018