Tuam Tshoj Seamless Steel Yeeb Nkab rau Kev Kub Siab Boiler Khoom 15crmog 12cr1movg Alloy Hlau Yeeb
Peb tau cog lus tias yuav muab cov nqi sib tw, cov khoom lag luam zoo tshaj plaws, ib yam nkaus li kev xa khoom sai rau High Pressure Boiler Pipe, Zoo siab txais tos txhua tus neeg siv khoom hauv tsev thiab txawv teb chaws mus rau peb lub tuam txhab, los tsim lub sijhawm ntev zoo los ntawm peb txoj kev koom tes. Insisting nyob rau hauv high quality tiam kab tswj thiab cov neeg muas zaub kev pab, peb tam sim no tau tsim peb cov kev daws teeb meem los muab peb cov neeg yuav khoom siv los pib nrog cov nyiaj tau txais thiab tsuas yog tom qab cov kev pab cuam lub tswv yim. Kev tswj hwm tus phooj ywg kev sib raug zoo nrog peb cov neeg yuav khoom, txawm li cas los xij, peb tab tom tsim kho peb cov kev daws teeb meem txhua lub sijhawm kom txaus siab rau cov kev xav tau tshiab thiab ua raws li kev tsim kho tshiab tshaj plaws ntawm kev lag luam hauv Malta. Peb tau npaj txhij los ntsib cov kev txhawj xeeb thiab ua rau kev txhim kho kom nkag siab txhua qhov muaj peev xwm ua lag luam thoob ntiaj teb.
Daim ntawv thov
Nws yog tsuas yog siv los ua cov pa roj carbon zoo steel, alloy steel qauv thiab stainless hlau kub-resistant steel seamless steel kav rau kev kub siab thiab siab dua chav boiler kav.
Feem ntau yog siv rau kev kub siab thiab kub kev pab cuam ntawm boiler (Superheater raj, reheater raj, cua qhia raj, lub ntsiab chav tub raj rau siab thiab ultra siab siab boilers). Nyob rau hauv qhov kev txiav txim ntawm kub flue roj thiab dej vapor, lub raj yuav oxidize thiab corrode. Nws yuav tsum tau hais tias cov yeeb nkab steel muaj cov kav ntev, siab tiv thaiv oxidation thiab corrosion, thiab cov qauv zoo.
Qib tseem ceeb
Qib ntawm cov khoom zoo carbon steel: 20g, 20mng, 25mng
Qib ntawm alloy structural steel: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, thiab lwm yam
Qib ntawm xeb-resistant kub-resistant steel: 1cr18ni9 1cr18ni11nb
Ua siab ntev
Phab ntsa Thickness thiab Outter Diameter:
Yog tias tsis muaj cov kev cai tshwj xeeb, cov yeeb nkab yuav raug xa tawm raws li cov kab nruab nrab sab nraud thiab cov phab ntsa tuab. Raws li daim ntawv
| Classification npe | Txoj kev tsim khoom | Qhov loj ntawm cov kav dej | Ua siab ntev | |||
| Qib ib txwm | Qib siab | |||||
| WH | Kub Rolled (extrude) yeeb nkab | Norminal sab nraud Diameter (D) | <57 | ua 0.40 | ± 0,30 | |
| 57-325 Ib | SWB 35 | ± 0.75% D | ± 0.5% D | |||
| S > 35 | ± 1% D | ± 0.75% D | ||||
| > 325-6.. | + 1%D lossis + 5.Ua tsawg dua ib qho 2 | |||||
| > 600 | + 1% D lossis + 7, Noj tsawg dua ib 2 | |||||
| Norminal Phab Ntsa Thickness (S) | <4.0 | ±|・丨) | ± 0.35 | |||
| > 4.0-20 | + 12.5% S | ± 10% S | ||||
| > 20 | SIB DV219 | ± 10% S | ± 7.5% S | |||
| ib 219 | + 12.5%S -10%S | 土10% S | ||||
| WH | Thermal expansion yeeb nkab | Norminal sab nraud Diameter (D) | tag nrho | ± 1% D | ± 0.75%. |
| Norminal Phab Ntsa Thickness (S) | tag nrho | + 20% S -10% S | + 15% S -io%s | ||
| WC | Cold drawn (kub) Ppipe | Norminal sab nraud Diameter (D) | <25.4 | ±'L1j | — |
| > 25.4 ~ 4() | ± 0.20 | ||||
| > 40-50 | |:0.25 | — | |||
| > 50-60 | ± 0.30 | ||||
| > 60 | ± 0.5% D | ||||
| Norminal Phab Ntsa Thickness (S) | <3.0 | ± 0.3 | ± 0.2 | ||
| > 3.0 | S | ± 7.5% S |
Ntev:
Qhov ntev ntev ntawm cov kav hlau yog 4 000 mm ~ 12 000 mm. Tom qab kev sib tham ntawm tus neeg muag khoom thiab tus neeg yuav khoom, thiab sau rau hauv daim ntawv cog lus, nws tuaj yeem xa cov kav hlau steel nrog qhov ntev ntau dua 12 000 mm lossis luv dua kuv 000 mm tab sis tsis luv dua 3 000 mm; luv luv Cov kav hlau steel tsawg dua 4,000 hli tab sis tsis pub tsawg dua 3,000 hli yuav tsum tsis pub tshaj 5% ntawm tag nrho cov kav hlau xa khoom.
Delivery luj:
Thaum cov yeeb nkab steel xa tawm raws li qhov nominal txheej kab thiab nominal phab ntsa thickness los yog lub nominal puab txoj kab uas hla thiab nominal phab ntsa thickness, cov yeeb nkab steel yog xa raws li qhov tseeb qhov hnyav. Nws kuj tuaj yeem raug xa tawm raws li qhov hnyav theoretical.
Thaum cov yeeb nkab steel xa tawm raws li qhov nominal txheej kab thiab qhov tsawg kawg nkaus phab ntsa thickness, cov yeeb nkab steel yog xa raws li qhov tseeb qhov hnyav; cov khoom thiab cov neeg thov kev sib tham. Thiab nws yog qhia nyob rau hauv daim ntawv cog lus. Cov yeeb nkab steel kuj tuaj yeem xa tawm raws li qhov ntsuas qhov hnyav.
Qhov hnyav kam rau ua:
Raws li cov kev xav tau ntawm tus neeg yuav khoom, tom qab kev sib tham ntawm tus neeg muag khoom thiab tus neeg yuav khoom, thiab hauv daim ntawv cog lus, qhov sib txawv ntawm qhov hnyav tiag tiag thiab qhov ntsuas theoretical ntawm tus xa khoom steel yeeb nkab yuav tsum ua raws li cov hauv qab no:
a) Ib leeg steel yeeb nkab: ± 10%;
b) Txhua batch ntawm steel kav nrog qhov tsawg kawg nkaus ntawm 10 t: ± 7.5%.
Kev Xeem Xeem
Hydraustatic Test:
Cov yeeb nkab steel yuav tsum tau sim hydraulically ib los ntawm ib qho. Qhov ntsuas siab tshaj plaws yog 20 MPa. Nyob rau hauv qhov kev sim siab, lub sij hawm stabilization yuav tsum tsis pub tsawg tshaj 10 s, thiab cov yeeb nkab steel yuav tsum tsis txhob xau.
Tom qab tus neeg siv pom zoo, qhov kev ntsuam xyuas hydraulic tuaj yeem hloov tau los ntawm kev ntsuas tam sim no los yog kev ntsuam xyuas qhov sib nqus flux.
Nondestructive Test:
Cov kav dej uas xav tau kev tshuaj xyuas ntau dua yuav tsum tau kuaj xyuas ultrasonically ib los ntawm ib qho. Tom qab kev sib tham yuav tsum tau tso cai los ntawm tog thiab tau teev nyob rau hauv daim ntawv cog lus, lwm yam uas tsis yog-tshuaj ntsuam xyuas yuav muab ntxiv.
Flattening Test:
Cov raj uas muaj ib txoj kab uas hla sab nraud ntau dua 22 hli yuav tsum raug kuaj kom haum. Tsis pom delamination, dawb me ntsis, los yog impurities yuav tsum tshwm sim thaum lub sij hawm tag nrho kev sim.
Flaring Test:
Raws li qhov yuav tsum tau muaj ntawm tus neeg yuav khoom thiab tau teev nyob rau hauv daim ntawv cog lus, cov yeeb nkab steel nrog lub taub sab nraud ≤76mm thiab phab ntsa thickness ≤8mm tuaj yeem ua tiav kev sim ntsuas. Qhov kev sim tau ua nyob rau hauv chav tsev kub nrog ib tug taper ntawm 60 °. Tom qab qhov flaring, qhov flaring tus nqi ntawm lub sab nraud yuav tsum tau raws li qhov yuav tsum tau ntawm cov lus hauv qab no, thiab cov khoom siv kuaj yuav tsum tsis txhob pom cov kab nrib pleb lossis rips.
| Hom hlau
| Sab nraud txoj kab uas hla flaring tus nqi ntawm cov yeeb nkab steel /% | ||
| Inner Diameter/Outter Diameter | |||
| <0.6 | > 0.6-0.8 | > 0.8 | |
| High-zoo carbon structural steel | 10 | 12 | 17 |
| Cov qauv hlau alloy | 8 | 10 | 15 |
| • Lub puab txoj kab uas hla yog xam rau tus qauv. | |||
Seamless Steel Tubes Rau High-Pressure Boilers
GB/T5310-2017
ASME SA-106/SA-106M-2015
ASTMA210 (A210M)-2012
ASME SA-213/SA-213M
