Nānā nui

ʻO kā mākou pahuhopu e hoʻohui a hoʻonui i ka maikaʻi kiʻekiʻe a me ka lawelawe o nā waiwai o kēia manawa, i kēia manawa e hana pinepine i nā huahana hou e hoʻokō i nā kelepona o nā mea kūʻai aku no ka High-Temperature Service SMLS Steel Pipe. No ka hoʻomaikaʻi ʻana i ka ʻoihana hoʻonui, kono ʻoluʻolu mākou i nā poʻe a me nā ʻoihana e hui pū ma ke ʻano he ʻelele. Me ka manaʻo o "hoʻokūkū me ka maikaʻi maikaʻi a hoʻomohala me ka noʻonoʻo" a me ke kumu lawelawe o ka "lawe i ka koi o nā mea kūʻai aku ma ke ʻano he orientation", e hōʻike pono ana mākou i nā huahana kūpono a me ka lawelawe maikaʻi no nā mea kūʻai aku a me ka honua.

ʻO P235GH ʻo Kelemania ke kila kila kiʻekiʻe, ʻo ka helu helu he 1.0345, nā māka kila o EN10028, ʻo ia ka pā pahu pahu kila. Hoʻohana maʻamau i ka umu ahi arc a me ka oxygen top-blown converter smelting, ke kila me ka hoʻomaʻemaʻe adpot koi kiʻekiʻe ma waho o ka umu, electroslag remelting a i ʻole ka hoʻoheheʻe ʻana, ka hoʻoheheʻe ʻana i ka umu hoʻoheheʻe ʻana a i ʻole ka hoʻoheheʻe ʻana i ka lua, ka mālama wela kūpono. He kiʻekiʻe loa ka maʻiʻo huila. Loaʻa i ka plasticity maikaʻi a me ka paʻakikī, ka waiwai kuʻi anuanu a me ka hana kuʻi ʻana, kūpono no ka hana ʻana i ka ipu hao hao nuklea, ka moku kaomi, nā mea lako. Hiki ke hoʻohana ʻia ka China steel grade Q245R e pani. Hoʻohālikelike ʻia me ke kila maʻamau, ʻoi aku ka ikaika a me ka paʻakikī, ka waiwai kuʻi anu a me ka hana kuʻi ʻana, nā waiwai kino, nā waiwai kemika, biocompatibility a me ka hana hana.

Mechanical waiwai, tensile ikaika 350-480 MPa; ʻO ka ikaika ≥215 MPa; Elongation ≥ 25%; ʻO ka hopena hopena ≥47J; Brinell paakiki ≤ 105-140 HB100/3000,

Kemika (hapana nui, %) : C≤0.16; Si≤0.35; Mn 0.60~1.20; P≤0.025; S≤0.010; Cr≤0.30;Ni≤0.30; Cu≤0.30; Mo≤0.08; V≤0.02; Nb≤0.02; N≤0.012; Al≤0.020; Ti≤0.03.

Hoʻomaʻamaʻa wela: ka wela wela 1100-850 ℃; ʻO 890 ~ ​​950 ℃ ka mahana o ka Annealing; ʻO ka mahana maʻamau 520-580 ℃.

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