Mutengo unonzwisisika weChina Ductile Seamless Cast Iron Steel Boiler Tube Mutengo Black Iron Pipe
Overview
Inovimbika zvemhando yepamusoro uye yakanaka kiredhiti yekumira ndiyo misimboti yedu, inozotibatsira pachinzvimbo chepamusoro. Kunamatira mudzidziso ye "mhando yekutanga, mutengi wepamusoro" yeBoiler Pipe, Isu takavimbisa mhando, kana vatengesi vasina kufara nemhando yepamusoro yezvigadzirwa, unogona kudzoka mukati memazuva manomwe nematunhu avo ekutanga. Isu tinotenda kuti hukama hwakanaka hwebhizinesi huchatungamira kune mabhenefiti pamwe nekuvandudzwa kwemapato ese. Isu takagadzira hukama hwehukama hwenguva refu uye hwakabudirira nevatengi vazhinji kuburikidza nekuvimba kwavo mumasevhisi edu akajairwa uye kuvimbika mukuita bhizinesi. Isu tinonakidzwawo nemukurumbira wepamusoro kuburikidza nekuita kwedu kwakanaka. Kuita kurinani kuri kuzotarisirwa semusimboti wedu wekuvimbika. Kuzvipira uye Kutsiga zvicharamba zvakadaro.
Boiler pombi zvese zvinodikanwa NDT kuona kuti hapana hurema hwemhando inozokonzera njodzi. Iyo NDT inosanganisira yakawanda nzira yekuyedza, imomo, Ultrosonic, X-Ray, Eddy Yazvino uye Magnetic Flux Leakage inonyanya kushandiswa, kunyangwe ese achishandiswa kuongorora hurema semakomba, pores, inclusions, makatsemuka, asi ane mukana wakasiyana. iyo yakakodzera bvunzo yekuremara kwakasiyana:
Ultrasonic
Inokodzera zvinhu zvakawanda zvakasiyana; Iva nemukana wekuyedza mukati mehurema senge pasina fusion, crack, delamination, mwero wekuona wakakwira; ine simba guru rekupinza, rinogona kushandiswa kuona kukanganisa kwemukati kwezvienzaniso muhukuru hwakakura; nzvimbo yakakanganisika yakarurama; high senitivity, inogona kuona kukanganisa kwehukuru hudiki mukati memuenzaniso; mutengo wakaderera, kukurumidza kukurumidza, mwenje midziyo, isingakuvadzi kumuviri wemunhu uye nharaunda, iri nyore kushandisa panzvimbo
Asi zvakaoma kuita chaiyo qualitative uye quantitative kuongororwa kwezvakaremara mune zvienzaniso; zvakaoma kuona chimiro chine chimiro chakaoma kana chimiro chisina kujairika; iyo nzvimbo, kutaridzika uye chimiro chechirema chine imwe pesvedzero pane yekuona mhedzisiro; zvinhu uye saizi yezviyo zvine simba guru pakuona; mhedzisiro yacho haina kujeka uye hapana yakananga chapupu rekodhi yemhedzisiro yebvunzo kana bhuku reA-type pulse reflection nzira inoshandiswa.
X-Ray
Senge ultrosonic, ese ari maviri akashandiswa kuongorora mukati mehurema, X-ray yainyanya kushandiswa kuongorora weld seam uye cast chigadzirwa, kunyanya weld seam, inogona kunyatsoona hurema hwevhoriyamu senge porosity, slag kuisirwa uye porosity, asi zvakaoma. kuona kukanganisa kwenzvimbo senge delamination uye crack. X-ray inogona kuona zvakananga ukuru, nzvimbo uye chimiro chechikanganiso, asi haina hanya nenzvimbo yakakanganisika, uye kurongeka kwekuona kuchaderedzwa kana kuremara kwekutarisa uye ray direction angle isina kukodzera kunyange isingagone kuona, uye mari yacho yakakwirira, kushanda kwakaoma
Eddy Current
Eddy Yazvino uye Magnetic Flux Leakage ese ari maviri haana zvakawanda reuqirement nezve surfact mhando, uye yakaonekwa chiratidzo chiratidzo chemagetsi, chinogona kugadziridzwa nedhijitari kufambisa kuchengetedza, kubereka uye kuenzanisa data uye kugadzirisa. Iyo ine yakakwirira yekuona senitivity uye yakanaka mutsara chiratidzo mune imwe nhanho yehurema pane kana padyo nepamusoro peiyo workpiece, iyo inogona kushandiswa pakutarisira kwemhando uye kutonga; inogona kuedzwa pakupisa kwepamusoro, nzvimbo yakamanikana yeworkpiece uye yakadzika gomba madziro (kusanganisira chubhu madziro); nonmetallic zvinhu zvinogona kukonzera eddy currents zvinogona kuedzwa, senge graphite; panguva yekuona, iyo coil haidi kubata workpiece kana coupling svikiro, saka kukurumidza kuona kunokurumidza.
Asi nyaya yacho inofanira kuva conductive uye yakakodzera chete kuona simbi pamusoro kuremara; kudzika kwekuona uye kunzwisiswa kwekuona kunopesana. Paunenge uchiitisa ET pane chinhu, zvinodikanwa kuti utarise zvizere zvinoenderana nechinhu, mamiriro ekunze uye chiyero chekuongorora, uye wobva waona chirongwa chekuona uye tekinoroji paramita; apo iyo kuburikidza-coil inoshandiswa kune ET, iyo chaiyo nzvimbo pane denderedzwa yechikanganiso haigone kutsanangurwa; zvakaoma kuona zvimiro zvine zvimiro zvakaoma
Magnetic Flux Leakage
Zvakangofanana naEddy Yazvino, hauna zvakawanda zveuqirement nezve surfact mhando, uye yakaonekwa chiratidzo chiratidzo chemagetsi, chinogona kugadziridzwa nedhijitari kuti chifambise kuchengetedza, kubereka uye kuenzanisa data uye kugadzirisa. Pakutanga quantification yekuremara inogona kuwanikwa.Iyi quantization haigoni kungoona kutongwa kwezvikanganiso, asiwo kuita ongororo yekutanga yehuwandu hwekukuvadza kwekuremara; kune mapaipi ane madziro ukobvu asingasviki 30mm, anogona panguva imwe chete kuona mukati uye kunze kwemadziro kukanganisa; nekuti zviri nyore kuve otomatiki, yakakwirira yekuona kunyatsoshanda uye hapana kusvibiswa kunogona kuwanikwa
Asi inongoshanda kune ferromagnetic zvinhu.Nekuti magineti ndiyo nhanho yekutanga yekuona magineti flux leakage yekuona, iyo permeability yezvinhu zvisiri-ferromagnetic zviri padyo ne1, uye magineti akatenderedza chirema haachinje nekuda kwekusiyana permeability, saka magineti flux kuvuza. hazvizoitiki; Kunyatsotaura, magnetic flux leakage yekuongorora haigoni kuona kukanganisa mune ferromagnetic materials.Kana kureba pakati pechikanganiso nepamusoro pepamusoro, kukanganiswa kwemagineti kwakakomberedza chikanganiso kunonyanya kuonekwa kwakakomberedza chikanganiso, nepo workpiece yepamusoro inogona kunge isina magineti. Magnetic flux leakage yekuyedza haina kukodzera kuyedza zvimiro zvine akavharwa kana akafukidzwa nzvimbo; magnetic flux leakage yekuona haina kukodzera kumuenzaniso une chimiro chakaoma.Magnetic leakage yekuona inoshandisa masensa kuunganidza magnetic leakage communication signals, uye chimiro chakaoma zvishoma hachikwanisi kuonekwa; magnetic flux leakage yekuona haina kukodzera kuona mitswe yakatetepa, kunyanya yakavharwa.
Application
Inonyanya kushandiswa kugadzira yakakwirira-mhando kabhoni structural simbi, alloy structural simbi uye isina kupisa-inodzivirira simbi isina musono pombi dzesimbi yekumanikidza yakakwira uye pamusoro pemhepo boiler pombi.
Inonyanya kushandiswa kune yakanyanya kudzvanywa uye yakanyanya tembiricha sevhisi ye boiler (Superheater chubhu, reheater chubhu, mhepo inotungamira chubhu, main steam chubhu yekumusoro uye yakanyanya kudzvanywa boilers). Pasi pechiito chepamusoro tembiricha flue gasi uye mhute yemvura, iyo chubhu ichave oxidize uye corrode. Zvinotarisirwa kuti pombi yesimbi ine kusimba kwepamusoro, kupikisa kwakanyanya kune oxidation uye corrosion, uye kunaka kwemaitiro kugadzikana.
Main Grade
Giredhi remhando yepamusoro kabhoni structural simbi: 20g, 20mng, 25mng
Giredhi yealloy structural simbi: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, etc.
Giredhi resimbi inodzivirira kupisa-inodzivirira kupisa: 1cr18ni9 1cr18ni11nb
Chemical Component
| Giredhi | Hunhu Kirasi | Chemical Property | ||||||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
| 不大于 | 不小于 | |||||||||||||||
| Q345 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.20 | 0.012 | 0.10 | - | - | |||
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.07 | 0.15 | 0.20 | 0.015 | ||||||||||
| D | 0.18 | 0.030 | 0.025 | |||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q390 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.3. | 0.50 | 0.20 | 0.015 | 0.10 | - | - |
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0,015 | |||||||||||||
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q42O | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.2. | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | - | - |
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.015 | |||||||||||||
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q46O | C | 0.20 | 0.60 | 1.80 | 0.030 | 0.030 | 0.11 | 0.20 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q500 | C | 0.18 | 0.60 | 1.80 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 0.60 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
| D | 0.025 | 0.015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Q550 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0,020 | 0.11 | 0.20 | 0.20 | 0.80 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
| D | 0.025 | 0,015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Q62O | C | 0.18 | 0.60 | 2.00 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 1.00 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
| D | 0.025 | 0.015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Kunze kweQ345A uye Q345B mamakisi, simbi inofanirwa kunge iine imwechete yezvakanatswa zviyo zvinhu Al, Nb, V, uye Ti. Maererano nezvinodiwa, mutengesi anogona kuwedzera imwe kana zvimwe zvakanatswa zviyo zviyo, iyo yakanyanya kukosha Inofanirwa kusangana nezvinodiwa mutafura. Kana yasanganiswa, Nb + V + Ti <0.22% °YeQ345, Q390, Q420 uye Q46O mamakisi, Mo + Cr <0.30% o Kana giredhi rega rega reCr neNi richishandiswa sechinhu chasara, zvirimo muCr neNi hazvifanirwe. kuva kupfuura 0.30%; kana ichida kuwedzerwa, zvirimo zvinofanirwa kuzadzisa zvinodiwa mutafura kana kutariswa nemutengesi nemutengi kuburikidza nekubvunzana.J Kana mutengesi achigona kuvimbisa kuti nitrogen yemukati inosangana nezvinodiwa mutafura, kuongororwa kweiyo nitrogen kusaitwa. Kana Al, Nb, V, Ti uye mamwe alloy elements ane nitrogen fixation akawedzerwa kune simbi, iyo nitrogen content haina kukwana. Iyo nitrogen inogadzirisa zvemukati inofanirwa kutsanangurwa mune yemhando chitupa. 'Paunenge uchishandisa ese aruminiyamu, iyo yakazara aruminiyamu yemukati AIt ^ 0.020% B | ||||||||||||||||
Mechanical Property
| No | Giredhi | Mechanical Property | ||||
|
|
| Tensile | Yield | Wedzera | Impect (J) | Handness |
| 1 | 20G | 410- | ≥ | 24/22% | 40/27 | - |
| 2 | 20MnG | 415- | ≥ | 22/20% | 40/27 | - |
| 3 | 25MnG | 485- | ≥ | 20/18% | 40/27 | - |
| 4 | 15MoG | 450- | ≥ | 22/20% | 40/27 | - |
| 6 | 12CrMoG | 410- | ≥ | 21/19% | 40/27 | - |
| 7 | 15CrMoG | 440- | ≥ | 21/19% | 40/27 | - |
| 8 | 12Cr2MoG | 450- | ≥ | 22/20% | 40/27 | - |
| 9 | 12Cr1MoVG | 470- | ≥ | 21/19% | 40/27 | - |
| 10 | 12Cr2MoWVTiB | 540- | ≥ | 18/-% | 40/- | - |
| 11 | 10Cr9Mo1VNbN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
| 12 | 10Cr9MoW2VNbBN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
Kushivirira
Kukora Kwemadziro uye Kwekunze Diameter:
Kana pasina zvakakosha zvinodiwa, pombi ichaendeswa seyakajairika dhayamita yekunze uye yakajairika madziro ukobvu. As follow sheet
| Classification zita | Nzira yekugadzira | Kukura kwepombi | Kushivirira | |||
| Normal giredhi | High grade | |||||
| WH | Kupisa Yakakungurutswa (extrude) pombi | Norminal kunze Diameter (D) | <57 | 士 0.40 | ±0,30 | |
| 57〜325 | SW35 | ±0.75%D | ±0.5%D | |||
| S>35 | ±1%D | ±0.75%D | ||||
| >325 〜6. | + 1%D kana + 5.Tora diki 一2 | |||||
| >600 | + 1%D kana + 7,Tora mudiki 一2 | |||||
| Norminal Wall Kukobvu (S) | <4.0 | ±|・丨） | ±0.35 | |||
| >4.0-20 | + 12.5%S | ±10%S | ||||
| >20 | DV219 | ±10%S | ±7.5%S | |||
| 心219 | + 12.5%S -10%S | 土10%S | ||||
| WH | Pombi yekuwedzera inopisa | Norminal kunze Diameter (D) | zvose | ±1%D | ±0.75%. |
| Norminal Wall Kukobvu (S) | zvose | + 20%S -10%S | + 15%S -io%s | ||
| WC | Cold drawn (yakakungurutswa) Ppipe | Norminal kunze Diameter (D) | <25.4 | ±'L1j | - |
| >25.4 〜4() | ±0.20 | ||||
| >40〜50 | |:0.25 | - | |||
| >50〜60 | ±0.30 | ||||
| >60 | ±0.5%D | ||||
| Norminal Wall Kukobvu (S) | <3.0 | ±0.3 | ±0.2 | ||
| >3.0 | S | ±7.5%S |
Urefu:
Iyo yakajairika urefu hwemapombi esimbi ndeye 4 000 mm ~ 12 000 mm. Mushure mekubvunzana pakati pemutengesi nemutengi, uye kuzadza chibvumirano, inogona kuendeswa simbi mapaipi nehurefu hunopfuura 12 000 mm kana kupfupika kupfuura I 000 mm asi kwete kupfupika kupfuura 3 000 mm; hurefu hupfupi Huwandu hwepombi dzesimbi dziri pasi pe 4,000 mm asi dzisingasviki 3,000 mm hadzifanire kudarika 5% yehuwandu hwemapombi esimbi akaunzwa.
Delivery uremu:
Kana pombi yesimbi ichiunzwa zvinoenderana nedhayamita rekunze rekunze uye ukobvu hwemadziro hwezita kana dhayamita yemukati yemukati uye dhayamita remadziro, pombi yesimbi inounzwa zvinoenderana nehuremu chaihwo. Inogonawo kuendeswa maererano nehuremu hwe theoretical.
Kana iyo pombi yesimbi inounzwa maererano nezita rekunze dhayamita uye hushoma rusvingo ukobvu, pombi yesimbi inounzwa maererano nehuremu chaihwo; mapato ekupa nekudiwa anotaurirana. Uye inoratidzwa muchibvumirano. Iyo pombi yesimbi inogonawo kuendeswa maererano nehuremu hwe theoretical.
Weight tolerance:
Zvinoenderana nezvinodiwa nemutengi, mushure mekubvunzana pakati pemutengesi nemutengi, uye muchibvumirano, kutsauka pakati pehuremu chaihwo uye huremu hwekufungidzira hwepombi yesimbi yekutakura huchasangana nezvinodiwa zvinotevera:
a) Single simbi pombi: ± 10%;
b) Batch rimwe nerimwe remapombi esimbi ane saizi shoma yegumi t: ± 7.5%.
Test Chinodiwa
Hydraustatic Test:
Iyo pombi yesimbi inofanirwa kuongororwa hydraulically imwe neimwe. Iyo yakanyanya test pressure ndeye 20 MPa. Pasi pekumanikidzwa kwekuedza, nguva yekudzikamisa inofanira kunge isiri pasi pe10 s, uye pombi yesimbi haifaniri kudonha.
Mushure mekunge mushandisi abvuma, iyo hydraulic bvunzo inogona kutsiviwa needdy yazvino kuyedza kana magineti flux kuvuza kuyedzwa.
Nondestructive Test:
Mapaipi anoda kuongororwa zvakanyanya anofanirwa kuongororwa ultrasonically imwe neimwe. Mushure mokunge nhaurirano inoda kubvumirwa kwebato uye inotsanangurwa muchibvumirano, kumwe kuedza kusina kuparadza kunogona kuwedzerwa.
Flattening Test:
Machubhu ane dhayamita rekunze rakakura kudarika 22 mm achaiswa muyedzo yekubata bata. Hapana delamination inooneka, mavara machena, kana tsvina inofanirwa kuitika panguva yese yekuyedza.
Flaring Test:
Zvinoenderana nezvinodiwa nemutengi uye zvakataurwa muchibvumirano, pombi yesimbi ine dhayamita yekunze ≤76mm uye ukobvu hwemadziro ≤8mm inogona kuitwa flaring test . Kuedza kwakaitwa pakamuri tembiricha ine taper ye60 °. Mushure mekupisa, mwero wekupisa wedhayamita yekunze unofanirwa kusangana nezvinodiwa zvetafura inotevera, uye zvinhu zvekuyedza hazvifanirwe kuratidza kutsemuka kana kubvaruka.
| Simbi Type
| Kunze dhayamita yekupisa mwero wesimbi pombi/% | ||
| Inner Diameter/Outer Diameter | |||
| <0.6 | >0.6 〜0.8 | >0.8 | |
| High-quality carbon structural simbi | 10 | 12 | 17 |
| Structural alloy simbi | 8 | 10 | 15 |
| • Idhayamita yemukati inoverengerwa sampuli. | |||
Product Detail
Seamless Simbi Tubes Yepamusoro-Kudzvanya Boilers
GB/T5310-2017
ASME SA-106/SA-106M-2015
ASTMA210(A210M)-2012
ASME SA-213/SA-213M
