Tus nqi tsim nyog rau Tuam Tshoj Ductile Seamless Cast Iron Steel Boiler Tube Nqe Dub Hlau Yeeb
Txheej txheem cej luam
Kev cia siab rau qhov zoo thiab cov qhab nia zoo yog peb lub hauv paus ntsiab lus, uas yuav pab tau peb ntawm txoj haujlwm saum toj kawg nkaus. Adhering rau hauv lub tenet ntawm "zoo ua ntej, cov neeg siv khoom zoo tshaj" rau Boiler Yeeb Nkab, Peb lav zoo, yog tias cov neeg yuav khoom tsis zoo siab nrog cov khoom zoo, koj tuaj yeem rov qab rau hauv 7 hnub nrog lawv cov thawj lub xeev. Peb ntseeg tias kev sib raug zoo ntawm kev lag luam yuav ua rau muaj txiaj ntsig zoo thiab txhim kho rau ob tog. Tam sim no peb tau tsim kev sib raug zoo nrog kev sib raug zoo nrog ntau tus neeg siv khoom los ntawm lawv txoj kev ntseeg siab hauv peb cov kev pabcuam customized thiab kev ncaj ncees hauv kev ua lag luam. Peb kuj txaus siab rau lub koob npe nrov los ntawm peb qhov kev ua tau zoo. Kev ua tau zoo dua yuav raug xav tau raws li peb lub hauv paus ntsiab lus ntawm kev ncaj ncees. Devotion thiab Steadiness yuav nyob mus ib txhis.
Boiler yeeb nkab txhua qhov yuav tsum tau NDT kom ntseeg tau tias tsis muaj qhov tsis zoo uas yuav ua rau muaj kev pheej hmoo. NDT suav nrog ntau txoj kev sim, nyob rau hauv, Ultrosonic, X-Ray, Eddy Tam sim no thiab Sib Nqus Flux Leakage feem ntau tau siv, txawm hais tias lawv txhua tus tau siv los tshuaj xyuas qhov tsis xws luag xws li pits, pores, inclusions, tawg, tab sis lawv muaj qhov sib txawv. uas haum txawv defect test:
Ultrasonic
Haum rau ntau yam khoom sib txawv; muaj qhov zoo dua uas kuaj hauv qhov tsis xws luag xws li tsis muaj fusion, tawg, delamination, tus nqi nrhiav tau siab; muaj lub zog nkag siab siab, tuaj yeem siv los txheeb xyuas qhov tsis xws luag ntawm cov qauv hauv cov thickness ntau dua; qhov chaw tsis raug yog qhov tseeb; siab rhiab heev, nws tuaj yeem pom qhov tsis xws luag ntawm qhov me me hauv cov qauv; tus nqi qis, ceev ceev, khoom siv lub teeb, tsis muaj teeb meem rau tib neeg lub cev thiab ib puag ncig, yooj yim rau siv ntawm qhov chaw
Tab sis nws yog ib qho nyuaj rau kev ua kom muaj txiaj ntsig zoo thiab kev soj ntsuam ntau ntawm qhov tsis xws luag hauv cov qauv; nyuaj los kuaj xyuas cov qauv nrog cov duab nyuaj lossis cov duab tsis zoo; qhov chaw, kev taw qhia thiab cov duab ntawm qhov tsis xws luag muaj qee yam cuam tshuam rau kev kuaj pom; cov khoom thiab cov nplej loj muaj kev cuam tshuam zoo rau kev tshawb nrhiav; Cov txiaj ntsig tsis yog qhov xav tau thiab tsis muaj cov ntaub ntawv pov thawj ncaj qha ntawm cov txiaj ntsig kev xeem thaum siv phau ntawv A-hom mem tes xav txog txoj kev siv
X-Ray
Zoo li ultrosonic, lawv ob leeg tau siv los tshuaj xyuas hauv qhov tsis xws luag, X-ray feem ntau tau siv los tshuaj xyuas cov khoom siv vuam thiab cov khoom pov tseg, tshwj xeeb tshaj yog cov vuam seam, tuaj yeem kuaj xyuas qhov ntim tsis xws li porosity, slag suav nrog thiab porosity, tab sis nws yog qhov nyuaj. txhawm rau txheeb xyuas qhov chaw tsis xws luag xws li delamination thiab tawg. X-ray tuaj yeem ncaj qha saib qhov loj, qhov chaw thiab qhov xwm txheej ntawm qhov tsis xws luag, tab sis nws tsis nkag siab rau thaj tsam qhov tsis xws luag, thiab qhov kev kuaj pom tseeb yuav raug txo kom tsawg yog tias qhov kev taw qhia tsis raug thiab lub kaum sab xis tsis tsim nyog txawm tias tsis tuaj yeem ntes, thiab tus nqi yog siab, kev ua haujlwm yog complex
Eddy Tam sim no
Eddy Tam sim no thiab Sib Nqus Flux Leakage ob leeg tsis muaj ntau reuqirement txog surfact zoo, thiab kuaj pom cov teeb liab yog ib qho hluav taws xob teeb liab, uas tuaj yeem ua tiav digitally los pab txhawb kev khaws cia, luam tawm thiab cov ntaub ntawv sib piv thiab ua tiav. Nws muaj qhov ntsuas pom tau zoo thiab qhov qhia tau zoo ntawm cov kab hauv ib qho kev tsis xws luag ntawm lossis ze ntawm qhov chaw ua haujlwm, uas tuaj yeem siv rau kev tswj hwm thiab kev tswj xyuas zoo; tuaj yeem kuaj tau ntawm qhov kub thiab txias, nqaim ntawm qhov chaw ua haujlwm thiab lub qhov tob ntawm phab ntsa (xws li phab ntsa raj); cov ntaub ntawv uas tsis yog xim hlau uas tuaj yeem ua rau eddy tam sim no tuaj yeem kuaj, xws li graphite; Thaum lub sij hawm kuaj pom, lub kauj tsis tas yuav tsum tau hu rau lub workpiece lossis coupling nruab nrab, yog li qhov kev tshawb pom ceev ceev.
Tab sis qhov kev kawm yuav tsum yog conductive thiab tsuas yog tsim nyog rau kev kuaj xyuas cov hlau tsis xws luag; qhov nrhiav kom pom qhov tob thiab nrhiav kom tau rhiab heev yog contradictory. Thaum ua ET ntawm cov khoom siv, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas raws li cov khoom siv, lub xeev saum npoo thiab cov qauv tshuaj ntsuam xyuas, thiab tom qab ntawd txiav txim siab txog cov txheej txheem tshawb nrhiav thiab cov txheej txheem kev ua haujlwm; thaum siv los ntawm-coil rau ET, txoj haujlwm tshwj xeeb ntawm lub voj voog ntawm qhov tsis xws luag tsis tuaj yeem txiav txim siab; nyuaj los xyuas cov qauv nrog cov duab nyuaj
Sib nqus Flux Leakage
Ib yam li Eddy Tam sim no, tsis muaj ntau qhov kev xav txog qhov zoo ntawm surfact, thiab kuaj pom cov teeb liab yog lub teeb liab hluav taws xob, uas tuaj yeem ua tiav digitally los pab txhawb kev khaws cia, luam tawm thiab cov ntaub ntawv sib piv thiab ua tiav. Thawj qhov kev txiav txim siab ntawm qhov tsis xws luag tuaj yeem ua tiav.Qhov quantization no tuaj yeem tsis tsuas yog paub txog qhov kev txiav txim ntawm qhov tsis xws luag, tab sis kuj ua rau kev ntsuam xyuas ua ntej ntawm cov degree ntawm kev puas tsuaj ntawm qhov tsis xws luag; rau cov kav dej nrog cov phab ntsa thickness tsawg dua 30mm, nws tuaj yeem tshawb pom cov teeb meem sab hauv thiab sab nraud; vim nws yog ib qho yooj yim rau automated, siab nrhiav efficiency thiab tsis muaj kuab paug yuav tau
Tab sis tsuas yog siv tau rau ferromagnetic cov ntaub ntawv.Vim tias magnetization yog thawj kauj ruam ntawm magnetic flux to detection, lub permeability ntawm non-ferromagnetic cov ntaub ntawv yog nyob ze rau 1, thiab lub magnetic teb nyob ib ncig ntawm lub defect yuav tsis hloov vim txawv permeability, yog li sib nqus flux to. yuav tsis tshwm sim; nruj me ntsis hais lus, sib nqus flux to testing tsis tuaj yeem txheeb xyuas qhov tsis xws ntawm cov khoom siv ferromagnetic.Yog tias qhov kev ncua deb ntawm qhov tsis xws luag thiab qhov chaw loj, qhov sib nqus teb distortion nyob ib ncig ntawm qhov tsis xws luag feem ntau tshwm nyob ib ncig ntawm qhov tsis xws luag, thaum lub workpiece nto yuav tsis muaj magnetic to. Magnetic flux to testing tsis haum rau kev kuaj cov qauv nrog coated los yog overlaid nto; Magnetic flux to detection tsis haum rau cov qauv uas muaj cov qauv zoo.Magnetic to detection siv cov sensors los sau cov kev sib nqus sib nqus sib txuas lus, thiab cov qauv me ntsis nyuaj tsis zoo rau kev tshawb nrhiav; Magnetic flux to detection tsis haum rau kev kuaj xyuas cov kab nrib pleb, tshwj xeeb tshaj yog kaw cov kab nrib pleb.
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
Chemical Component
| Qib | Zoo Chav kawm | Chemical Property | ||||||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
| 不大于 | 不小于 | |||||||||||||||
| q345 ua | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.30 Nws | 0.50 ib | 0.20 ib | 0.012 ib | 0.10 | — | — | |||
| B | 0.035 ib | 0.035 ib | ||||||||||||||
| C | 0.030 Nws | 0.030 Nws | 0.07 ib | 0.15 | 0.20 ib | 0.015 ib | ||||||||||
| D | 0.18 | 0.030 Nws | 0.025 ib | |||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| q390 ua | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.07 ib | 0.20 ib | 0.20 ib | 0.3 ua. | 0.50 ib | 0.20 ib | 0.015 ib | 0.10 | — | — |
| B | 0.035 ib | 0.035 ib | ||||||||||||||
| C | 0.030 Nws | 0.030 Nws | 0,015 ib | |||||||||||||
| D | 0.030 Nws | 0.025 ib | ||||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| qw 42o | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.07 ib | 0.2 ua. | 0.20 ib | 0.30 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | — | — |
| B | 0.035 ib | 0.035 ib | ||||||||||||||
| C | 0.030 Nws | 0.030 Nws | 0.015 ib | |||||||||||||
| D | 0.030 Nws | 0.025 ib | ||||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| qw 46o | C | 0.20 ib | 0.60 ib | 1.80 ib | 0.030 Nws | 0.030 Nws | 0.11 | 0.20 ib | 0.20 ib | 0.30 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | 0.005 ib | 0.015 ib |
| D | 0.030 Nws | 0.025 ib | ||||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| q500 ua | C | 0.18 | 0.60 ib | 1.80 ib | 0.025 ib | 0.020 ib | 0.11 | 0.20 ib | 0.20 ib | 0.60 ib | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | 0.005 ib | 0.015 ib |
| D | 0.025 ib | 0.015 ib | ||||||||||||||
| E | 0.020 ib | 0.010 ib | ||||||||||||||
| q550 ua | C | 0.18 | 0.60 ib | 2.00 Nws | 0.025 ib | 0,020 ua | 0.11 | 0.20 ib | 0.20 ib | 0.80 ib | 0.80 ib | 0.20 ib | 0.015 ib | 0.30 Nws | 0.005 ib | 0.015 ib |
| D | 0.025 ib | 0,015 ib | ||||||||||||||
| E | 0.020 ib | 0.010 ib | ||||||||||||||
| qw 62o | C | 0.18 | 0.60 ib | 2.00 Nws | 0.025 ib | 0.020 ib | 0.11 | 0.20 ib | 0.20 ib | 1.00 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.30 Nws | 0.005 ib | 0.015 ib |
| D | 0.025 ib | 0.015 ib | ||||||||||||||
| E | 0.020 ib | 0.010 ib | ||||||||||||||
| Tsuas yog Q345A thiab Q345B qib, cov hlau yuav tsum muaj tsawg kawg yog ib qho ntawm cov khoom ua kom zoo zoo Al, Nb, V, thiab Ti. Raws li qhov xav tau, tus neeg muag khoom tuaj yeem ntxiv ib lossis ntau dua cov khoom ua kom zoo zoo, qhov siab tshaj plaws yuav tsum ua kom tau raws li qhov yuav tsum tau ua hauv lub rooj. Thaum ua ke, Nb + V + Ti <0.22% ° Rau Q345, Q390, Q420 thiab Q46O qib, Mo + Cr <0.30% oThaum txhua qib ntawm Cr thiab Ni siv los ua cov khoom seem, cov ntsiab lus ntawm Cr thiab Ni yuav tsum tsis txhob ntau tshaj 0.30%; Thaum nws yuav tsum tau ntxiv, nws cov ntsiab lus yuav tsum ua kom tau raws li qhov yuav tsum tau ua hauv lub rooj lossis txiav txim siab los ntawm tus neeg muag khoom thiab tus neeg yuav khoom los ntawm kev sib tham.J Yog tias tus neeg muag khoom tuaj yeem lav tias cov ntsiab lus nitrogen ua tau raws li qhov yuav tsum tau ua hauv lub rooj, cov ntsiab lus nitrogen tsom xam yuav tsis tau ua. Yog tias Al, Nb, V, Ti thiab lwm yam hlau alloy nrog nitrogen fixation ntxiv rau cov hlau, cov ntsiab lus nitrogen tsis txwv. Cov ntsiab lus ntawm nitrogen fixation yuav tsum tau teev nyob rau hauv daim ntawv pov thawj zoo. 'Thaum siv tag nrho cov txhuas, tag nrho cov ntsiab lus txhuas AIt ^ 0.020% B | ||||||||||||||||
Mechanical Property
| No | Qib | Mechanical Property | ||||
|
|
| Tensile | Yield | Txuas ntxiv | Impect (J) | Tes tes |
| 1 | 20 G | 410- | ≥ | 24/22% | 40/27 ib | — |
| 2 | 20 MnG | 415- | ≥ | 22/20% | 40/27 ib | — |
| 3 | 25 MnG | 485- | ≥ | 20/18% | 40/27 ib | — |
| 4 | 15 MOG | 450- | ≥ | 22/20% | 40/27 ib | — |
| 6 | 12 CrMoG | 410- | ≥ | 21/19% | 40/27 ib | — |
| 7 | 15 CrMoG | 440- | ≥ | 21/19% | 40/27 ib | — |
| 8 | 12Cr2MoG | 450- | ≥ | 22/20% | 40/27 ib | — |
| 9 | 12Cr1MoVG | 470- | ≥ | 21/19% | 40/27 ib | — |
| 10 | 12Cr2MoWVTiB | 540- | ≥ | 18/-% | 40/- | — |
| 11 | 10Cr9Mo1VNbN | ≥ | ≥ | 20/16% | 40/27 ib | ≤ |
| 12 | 10Cr9MoW2VNbBN | ≥ | ≥ | 20/16% | 40/27 ib | ≤ |
Ua siab ntev
Phab ntsa Thickness thiab Outter Diameter:
Yog tias tsis muaj qhov tshwj xeeb xav tau, 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 ib qho tsawg dua ib 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 tawm.
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 tau 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 xav tau kev tso cai los ntawm tog thiab tau teev tseg hauv daim ntawv cog lus, lwm yam kev sim uas tsis muaj kev puas tsuaj tuaj yeem raug 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. | |||
Product Detail
Seamless Steel Tubes Rau High-Pressure Boilers
GB/T5310-2017
ASME SA-106/SA-106M-2015
ASTMA210 (A210M)-2012
ASME SA-213/SA-213M
