GB 5310 20MNG Pumi Kiekie Seamless Boiler Tubes

ʻO ka wehewehe pōkole:

GB 5310 20MnG Kiekie Pressure Boiler Tubes Nā kikoʻī wikiwiki
Hana ʻia: ʻO ke kaʻina hana maʻemaʻe ,Hoʻopau wela a i ʻole ke anu.
Mānoanoa pā(WT): 2.8 mm——150 mm.
Anawaena waho (OD): 23 mm——1500 mm.
Length: 6M a i ʻole ka lōʻihi i ʻōlelo ʻia e like me ka makemake.
Wela: Hope Plain, Hope Beveled, Hehi.


Huahana Huahana

Huahana Huahana

Hana Hana

(1) Ke ano hoohehee kila
E hoʻoheheʻe ʻia ke kila GB 5310 20MnG e ka umu uila me ka hoʻomaʻemaʻe ʻana i ka umu ahi, ka mea hoʻololi oxygen me ka hoʻomaʻemaʻe ʻana i ka umu a i ʻole ke ʻano hoʻoheheʻe electroslag.

(2) Nā ʻano hana a me nā koi no nā blank tube
Hiki ke hana ʻia ka paipu blank ma ka hoʻolei mau ʻana, ka hoʻolei make a i ʻole ka ʻōwili wela (forging).

(3) Keʻano hana o ka paipu kila
E hana ʻia nā paipu kila GB 5310 20MnG e ka ʻōwili wela (extrusion, hoʻonui) a i ʻole kiʻi anu (rolling).

Hōʻike Huahana

12Cr1MoV mau kuʻi kiʻekiʻe2
12Cr1MoV Nā Kuʻi Paʻi Kiʻekiʻe1
12Cr1MoV mau kuʻi kiʻekiʻe3

Hoʻomaʻamaʻa wela no GB 5310 20MnG High Pressure Boiler Tubes

Papa

Hoʻomaʻamaʻa wela

20MnG

880 ℃ ~ 940 ℃, hoʻomaʻamaʻa

Huina Kemika o GB 5310 20MnG High Pressure Boiler Tubes

Paipu kila

Huina Kemika(%)

C

Si

Mn

Cr

Mo

V

Ni

Cu

P

Max

20MnG

0.17~0.23

0.17~0.37

0.70~1.00

≤0.25

≤0.15

≤0.08

≤0.25

≤0.20

0.025

Mechanical waiwai o GB 5310 20MnG High Pressure Boiler Tubes

Paipu kila

Nā waiwai tensile

Ka ikehu hopena(Akv),J

ʻoʻoleʻa

Ka ikaika tensile

Hua ikaika

ʻO ka elongation

Kiʻi Landscape

A

B

C

(MPa)

(MPa)

Kiʻi(%)

ʻĀina(%)

HBW

HV

HRC

 

Max

Min

20MnG

≥415

240

22

20

40

27

Palapala noi

Hoʻohana nui ʻia ia e hana i ke kila kila kila kiʻekiʻe, ke kila huila a me ke kila pale ʻana i ka wela me nā paipu kila ʻole no ke kaomi kiʻekiʻe a ma luna o nā paipu paila mahu.

Hoʻohana nui ʻia no ka lawelawe kiʻekiʻe a me ka wela wela o ka paila (Superheater Tube, Reheater Tube, Air Guide Tube, Main Steam Tube No High and Ultra High Pressure Boilers).Ma lalo o ka hana o ke kiʻekiʻe wela Flue Gas a me ka wai mahu, ka Tube E Oxidize a Corrode.Ua koi 'ia i ka paipu kila he kiʻekiʻe ka lōʻihi, ke kūpaʻa kiʻekiʻe i ka oxidation a me ka corrosion, a me ke kūpaʻa maikaʻi.

Papa Nui

Papa o ke kila kila kila kiʻekiʻe: 20g, 20mng, 25mng
Papa o Alloy Structural Steel: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, etc.
Papa o ka Rust-Resistant Weat-Resistant Steel: 1cr18ni9 1cr18ni11nb

Ka lōʻihi:
ʻO ka lōʻihi maʻamau o nā paipu kila he 4 000 Mm ~ 12 000 Mm.Ma hope o ke kūkākūkā ʻana ma waena o ka mea kūʻai aku a me ka mea kūʻai aku, a hoʻopiha i ka ʻaelike, hiki ke hāʻawi ʻia i nā paipu kila me ka lōʻihi ma mua o 12 000 mm a i ʻole pōkole ma mua o 000 mm akā ʻaʻole pōkole ma mua o 3 000 mm;Ka Loihi Pokole Ka heluna o na paipu kila ma lalo o 4,000 mm aka, aole emi malalo o 3,000 mm, aole e oi aku i ka 5% o ka huina o na paipu kila i haawiia.

Kaumaha hoʻouna:
Ke hāʻawi ʻia ka paipu kila e like me ke anawaena o waho a me ka mānoanoa o ka pā inoa a i ʻole ke anawaena o loko a me ka mānoanoa o ka pā inoa, e hāʻawi ʻia ka paipu kila e like me ke kaumaha maoli.Hiki ke hāʻawi ʻia e like me ke kaupaona ʻana.
Ke hāʻawiʻia ka paipu kila e like me ka inoa o waho anawaena a me ka liʻiliʻi o ka mānoanoa o ka pā, e hāʻawiʻia ka paipu kila e like me ke kaumaha maoli;Kūkākūkā nā ʻaoʻao hoʻolako a koi.A ua hoikeia ma ka aelike.Hiki ke hā'awi 'ia ka paipu kila e like me ke kaumaha o ka mana'o.

Kaumaha kaumaha:
E like me nā koi a ka mea kūʻai aku, ma hope o ke kūkākūkā ʻana ma waena o ka mea kūʻai aku a me ka mea kūʻai aku, a ma ka ʻaelike, ʻo ka ʻokoʻa ma waena o ke kaumaha maoli a me ke kaumaha kumu o ka paipu kila hāʻawi ʻia e hālāwai me kēia mau koi:
A) Paipu kila hoʻokahi: ± 10%;
B) ʻO kēlā me kēia pūʻulu o nā paipu kila me ka nui liʻiliʻi o 10 T: ± 7.5%.

Koi hoao

Hōʻike Hydraustatic:
Pono e ho'āʻoʻia ka paipu kila me ka hydraulic hoʻokahi.ʻO 20 MPa ka piʻi kiʻekiʻe loa.Ma lalo o ke kaomi ho'āʻo, ʻaʻole i emi iho ka manawa hoʻokūpaʻa ma mua o 10 S, a ʻaʻole pono e kahe ka paipu kila.
Ma hope o ka ʻae ʻana o ka mea hoʻohana, hiki ke hoʻololi ʻia ka Hydraulic Test e ka Eddy Current Testing or Magnetic Flux Leakage Testing.

ʻO ka hoʻāʻo ʻana ʻole:
ʻO nā paipu e koi ana i ka nānā hou aʻe e pono ke nānā ʻia me ka Ultrasonically.Ma hope o ke kūkākūkā ʻana e koi ʻia ka ʻae ʻana o ka ʻaoʻao a ua kuhikuhi ʻia i loko o ka ʻaelike, hiki ke hoʻohui ʻia nā hoʻāʻo hoʻopōʻino ʻole.

Ho'āʻo palahalaha:
ʻO nā paipu me ka anawaena waho i ʻoi aku ma mua o 22 mm e hoʻāʻo ʻia i ka hoʻāʻo ʻana.ʻAʻole ʻike ʻia ka Delamination, nā kiko keʻokeʻo, a i ʻole nā ​​​​mea 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 i loko o ka ʻaelike, hiki ke hana ʻia ka paipu kila me ka anawaena o waho ≤76mm a me ka mānoanoa o ka pā ≤8mm.Hana ʻia ka hoʻokolohua ma ka wela lumi me kahi lipi o 60 °.Ma hope o ka puhi ʻana, pono e hoʻokō ka wikiwiki o ka puhi ʻana o ka anawaena waho i nā koi o ka papa ma lalo nei, a ʻaʻole pono ka mea hoʻāʻo e hōʻike i nā māwae a i ʻole nā ​​​​haehae.


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