Chigadzirwa:SA210 Giredhi A-1 (ASTM A210/ASME SA210) chubhu ine simbi ine simbi ine simbi yakawanda ine tambo dzakapinza - ine tambo dzakatenderedzwa mukati memukati. Yakagadzirwa nekudhonza kunotonhora pamusoro pepuragi ine pfuti yakagadzirwa zvakanaka. Yakagadzirirwa madziro emvura ebhoyira ane simba rakawanda (mayuniti akakosha uye akakosha kupfuura 300,000 KW). Kubhururuka kwemukati kunokonzera masimba e centrifugal anoparadzanisa mvura nemhepo, zvichimanikidza mvura kuenda kumadziro echubhu kuti irambe ichifashaira uye kudzivirira kuumbwa kwefirimu remhepo.
Mazwi akakosha:Chubhu ine pfuti yeSA210, chubhu isina musono yeSA210 Grade A-1, chubhu yebhoyira ine pfuti ine tambo dzakawanda, chubhu ine tambo dzemukati, chubhu ine pfuti inotonhorera, chubhu yemadziro emvura, chubhu ine tambo dzakatenderera, chubhu yebhoyira yeASME SA210, chubhu isina musono yeSA210 Grade A-1, chubhu yebhoyira inoshanda zvakanyanya, madziro emvura ebhoyira ane pfuti, mugadziri wechubhu ine pfuti, mutengesi wechubhu ine pfuti yeChina
Cherechedza pamashoko anoshandiswa:"Rifled tube" uye "internally ribbed tube" zvinoreva chinhu chimwe chete. Mashoko ese ari maviri anotsanangura machubhu asina musono ane mbabvu dzakatenderera dzakaumbwa pamusoro pemukati nekudhonza kunotonhora pamusoro pepuragi ine migero. kutungamira kwakawandachiratidzo chinoratidza mbabvu dzakawanda dzakatenderera dzakafanana (dzinowanzo tanga 4 kana 6) dzichimhanya nepahurefu hwechubhu.
1. Zvinhu zveBasic: SA210 Giredhi A-1 Simbi isina musono yepakati nepakati yeCarbon
ASTM A210/ASME SA210 ndiyo nzira yakajairika yekushandisa bhaira resimbi repakati nekabhoni uye machubhu ekupisa. Nzira iyi inosanganisira machubhu esimbi ane ukobvu hushoma hwemadziro emvura yekupisa, kusanganisira magumo akachengeteka, machubhu e-arch, machubhu ekugara, uye machubhu ekupisa. SA210 Giredhi A-1 ndiyo nzira inonyanya kushandiswa pabasa remachubhu ekupisa, ichipa kuenzana kwakanaka kwesimba, ductility, uye mutengo.
Kuti pave nekumanikidzwa kwakanyanya uye tembiricha yakakwira, SA210 Giredhi C (yakakura kabhoni, simba rakawanda) inowanikwawo. Zvisinei, Giredhi A-1 inoramba iriyo mwero wekushandiswa kwemadziro emvura anoda kugadzirwa zvakanaka kuti akwanise kukotama uye kushanda zvakanaka pakupisa kwesimbi kusvika ku425°C (800°F).
1.1 Kuumbwa kweMakemikoro (ASTM A210 Giredhi A-1)
| Chinhu | Zvinodiwa (zvakanyanya/miniti) | Zvakajairika (Simbi Yevakadzi) |
| Kabhoni (C) | ≤0.27% | 0.22-0.25% |
| Manganese (Mn) | ≤0.93% | 0.45-0.60% |
| Silikoni (Si) | ≥0.10% | 0.18-0.33% |
| Phosphorus (P) | ≤0.035% | ≤0.015% |
| Sarufa (S) | ≤0.035% | ≤0.010% |
Tafura inobva: ASTM A210 / ASME SA210 zvirevo
1.2 Hunhu hweMichina
| Pfuma | Chinodiwa cheGiredhi A-1 | Zvakajairika (Simbi Yevakadzi) |
| Simba reKubereka (miniti) | 255 MPa (37,000 psi) | 280-320 MPa |
| Simba reKusimba (miniti) | 415 MPa (60,000 psi) | 450-520 MPa |
| Kureba (miniti) | 30% (yakareba) | 32-36% |
| Kuoma (kwakanyanya) | 79 HRB / 143 HB | 70-75 HRB |
*Giredhi C (0.24-0.31% C, YS≥275 MPa, TS≥485 MPa) inopa simba rakakwirira ne5-10% asi ductility yakaderera; inokurudzirwa kumachubhu e superheater uye sevhisi yekupisa kwepamusoro.*
1.3 Hunhu Hwemuviri
| Pfuma | Kukosha |
| Kuwanda kwevanhu | 7.85 g/cm³ |
| Tembiricha yepamusoro yebasa | 425°C (800°F) |
| Modulus yekusimba | 200 GPa |
| Kufambisa kwekupisa (100°C) | ~48 W/m·K |
| Kuwedzerwa kwehuwandu hwekuwedzera | 12.2 μm/m·K (20-200°C) |
1.4 Mitemo Inoshanda
| Zvakajairika | Tsananguro |
| ASTM A210 / A210M | Maitiro Akajairwa eSeamless Medium-Carbon Steel Boiler uye Superheater Tubes |
| ASME SA210 | Shanduro yeASME (zvinodiwa zvakafanana) |
| GB/T 20409-2018 | Chiyero chenyika cheChina chemachubhu ane pfuti (machubhu asina musono ebhoyira ane pressure yepamusoro) |
| EN 10216-2 (inofananidzwa) | Chiyero cheEurope chemachubhu esimbi asina musono ekushandisa pakumanikidza |
2. Tubhu ine pfuti ine hutungamiri hwakawanda: Maparamita eGeometric
Machubhu emhando dzakasiyana-siyana ane pfuti (MLR) akakamurwa kuita magadzirirwo maviri akajairika, rimwe nerimwe rakagadzirirwa mamiriro chaiwo ekushanda:
| Paramita | Rudzi A (Yakajairika) | Rudzi B / Yakagadziridzwa |
| Kona yeHelix | 30° | 30°+ (kusvika 40°+) |
| Kuwedzerwa kwekupisa | 30% pamusoro pechubhu yakatsetseka | 50%+ pamusoro pechubhu yakapfava (yakaunganidzwa) |
| Nhamba yemitsipa (kutanga kwembabvu) | 4 kana 6 | 4 kana 6 |
| geometry yembabvu | Mbiri yerectangular | Yakagadziridzwa (yakatenderera kana kuti yakachekwa) |
Machubhu akajairwa ane marobhoti akawanda akakamurwa kuita mhando mbiri (Type A neType B) ane angle ye30-degree helix. Machubhu akajairwa ane marobhoti akawanda anogona kuva neangle yehelix inosvika 40°+, zvichipa kuwedzera kwe20% mukushanda zvakanaka kwekupisa kupfuura machubhu akajairwa ane marobhoti.
Ruzivo rwekutsvagisa:chubhu yepfuti ine mbabvu ina, dhayamita yekunze 25mm, kureba kwembabvu 0.68mm, upamhi hwembabvu 9.25mm, uye angle yehelix 60°, yakasimbiswa nekuyedza. Zvidzidzo zvenhamba zvinosimbisa kuti magadzirirwo echubhu ine rifled ane mbabvu dzakaita rectangular (kukwirira 0.775mm, angle yehelix 30° uye 58°) anowedzera kuyerera kwechipiri kwehelical pedyo nemadziro echubhu, zvichivandudza zvakanyanya kushanda kwekutapurirana kwekupisa.
Kuwedzera kwenzvimbo yepamusoro:Nzvimbo yemukati mehuremu hwemachubhu ane ribbed mukati inenge yakapetwa ka1.5 kusvika 2.4 kupfuura machubhu akapfava ane dhayamita imwe chete yekunze. Maitiro ekudhirowa anotonhora anoita kuti rusvingo rwemukati ruve chimiro chine ribbed spiral chine saizi chaiyo yejometri, zvichiwedzera zvakanyanya nzvimbo inoshanda yekutumira kupisa kwechubhu kana tichienzanisa nemachubhu asina chinhu.
2.1 Magadzirirwo Akafanana (Kubva Mukugadzirwa Chaiko)
| OD × Huremu (mm) | Kushandiswa Kwakajairika |
| Φ28.6 × 6.2 | Mapaneru emadziro emvura, kumanikidzwa kuri pakati nepakati |
| Φ31.8 × 5.5 | Mapaneru emadziro emvura |
| Φ38.1 × 7.5 | Pombi yemadziro emvura yakajairika |
| Φ63.5 × 7.5 | Madziro makuru emvura ebhaira |
| Φ66.7 × 8 | Mabhoyira eSuper/Ultra-Supercritical |
*Zvinhu zvakafanana zveSA210 Grade A-1 neGrade C multi-lead rifled tubes*
2.2 Kushivirira Kugadzirwa (Kunotonhora)
| Paramita | Kushivirira |
| Dhayamita yekunze (OD) | ±0.10 mm yeOD <25.4 mm; ±0.15 mm yeOD 25.4–38.1 mm |
| Ukobvu hwemadziro | -0% / +20% yekudhonzwa kunotonhora |
| Kureba | +20/-0 mm |
| Kururama | ≤1.5 mm pamita imwe neimwe |
Chitubu: ASTM A210 inotonhorera machubhu anodhonzwa nechando
3. Maitiro Ekugadzira - Kudhirowa Kwakatonhora NePlug Yakaputirwa Nepfuti
Womic Steel inogadzira machubhu eboiler asina musono eSA210 Grade A-1 ane tambo dzakawanda achishandisa nzira yekudhirowa inotonhora yakagadzirwa zvakanaka ine plug ine tambo inotenderera. Maitiro acho anotanga nehot-rolled seamless tube feedstock, iyo inoshanda senzira yekutanga yekudhirowa inotonhora inotevera. Mushure mekunge kudhirowa kwekutanga kwapera neplug yakatsetseka kuti iwane saizi dzakaoma, kudhirowa kwekupedzisira kunoshandisa plug ine tambo dzakawanda.
Puragi yakagadzirwa zvakanaka (yakakomberedzwa kunze nepatani yehelical) inopinzwa muchubhu yesimbi yobatanidzwa ne mandrel inotenderera. Chubhu inodhonzwa kuburikidza ne reduction die, uye sezvo chubhu ichidhonzwa mberi, puragi inotenderera, ichigadzira mbabvu dzakawanda dzinotenderera pamusoro pemukati. Muviri wepuragi une migero yekunze yakakamurwa zvakaenzana pakati pe axis yayo yepakati, nenzvimbo dzekunze dzichichinjana pakati pemigero. Kana chubhu ichidhonzwa pamusoro peiyi plug ine migero, nzvimbo dzinokwezva pateni inodzorwa ye spiral - kazhinji migero mina kana mitanhatu yakakamurwa zvakaenzana - pamadziro emukati mechubhu, nepo migero ichibvumira simbi yakabviswa kuti iyerere.
Kutevedzera nhamba kwepamusoro (Finite Element Method, FEM) kunoshandiswa kugadzirisa die geometry usati watanga kugadzirwa, kuderedza zvikanganiso zvekubata nemadziro echubhu. Mabhenefiti makuru eiyi nzira anosanganisira kuumbwa kwembabvu dzakagadzikana, kubereka kwakanyanya, kugara kwenguva refu kwezvishandiso, kugara kwembabvu dzakagadzikana, uye kupera kwemukati kwakatsetseka. Chiyero chekupedzisira chinowanikwa ndechekukweverwa kutonhora kusvika kuOD neWT chaiyo, kugadziriswa zvizere (normalized), uye kuongororwa kwe100% NDT.
4. Nzira Yekuvandudza Kutamiswa Kwekupisa - Nei Machubhu Epfuti Achishanda
Mumachubhu eboiler akatsetseka, mabubble emhepo anoungana pamusoro pemukati, zvichiita firimu remhepo rinoenderera mberi. Firimu remhepo iri harina simba rekupisa, zvichiita kuti kupisa kuwedzere zvakanyanya uye zvinogona kukonzera kupisa kwakanyanya uye kutadza kushanda zvakanaka kwechubhu (kubva pakubikira kwe nucleate, kana DNB).
Machubhu ane pfuti anogadzirisa dambudziko iri nekukonzera masimba e centrifugal mukuyerera, achisundira mvura yemvura kumadziro echubhu ukuwo utsi huchifamba huchienda pakati. Maitiro aya anopa mabhenefiti mana akakosha:
Kudziviswa kweDNB— mvura iri pamadziro inoita kuti nucleate irambe ichifashaira kunyangwe panopisa zvakanyanya.
Kunonoka kuoma— mumamiriro ezvinhu asina kusimba, kupfura pfuti kunowedzera nguva yekunonoka kwemvura, zvichidzivirira kusimba kwechubhu.
Kupisa kwakanyanya kunopisa— kufashaira kwe nucleate kunochengetwa pakupisa kwakanyanya.
Kuwedzerwa kwekupisa— kunyangwe kana mvura yadzika, chubhu ine pfuti inovandudza zvakanyanya kutamiswa kwekupisa uku ichideredza kuyerera kwemvura kunodiwa kuti kutonhodzeke zvakakwana.
Zvidzidzo zveCFD zvenhamba zvinoratidza kuti kugadzirisa ma parameter ejometri - kusanganisira huwandu hwekutanga kwepfuti, kureba kwembabvu, uye urefu hwepitch yepfuti - zvinogona kuwedzera kutamiswa kwekupisa kupfuura magadzirirwo ekutanga ane pfuti. Kuyerera kweswirl kunogadzirwa nembabvu dzakatenderera kunoita kuti pave nefirimu remvura rakatetepa pamadziro, zvichiwedzera zvakanyanya chiyero chekupisa kana tichienzanisa nemachubhu akatsetseka.
5. Kudzora Hunhu & Kuedzwa
Boka rega rega reSA210 A-1 rine pfuti rinoedzwa zvakasimba zvichienderana nezvinodiwa:
| Bvunzo | Maitiro | Chiyero |
| Kuongorora makemikari | OES spectrometer | Pakupisa (batch yega yega) |
| Kuedza kwekusimbisa | ASTM A370 | Pakupisa (paboka rega rega) |
| Kuedza kwekuoma | HRB / HB | Pabhechi rega rega |
| Kuedzwa kwemvura | Kumanikidzwa kwedhizaini ≥1.5 × ≥1.5 × | Chubhu yega yega |
| Eddy current / UT (NDT) | otomatiki pamutsetse kana kuti kunze kwemutsetse | Kuongororwa kwe100% |
| Kupisa & kupwanya | ASTM A450 | Paboka rega rega (kuti zvionekwe kuti zvinhu zviri nyore sei) |
| Kuzivikanwa Kwezvinhu Zvakanaka (PMI) | XRF (sarudzo) | Chubhu yega yega kana sezvinodiwa |
| Kuongorora kwehukuru | Laser / calipers / optical comparator | 100% (OD, WT, rib geometry, helix angle) |
Kuyera mbabvu geometry:Huwandu hwembabvu, kukwirira kwembabvu, upamhi hwembabvu, urefu hwepitch, uye helix angle zvinosimbiswa uchishandisa precision optical comparators kana profilometers. Izvi zvinofanirwa kuenderana nehurefu hwechubhu yese kuti zvive nechokwadi chekuti kupisa kunofambiswa zvakaenzana.
Zvitupa:EN 10204 Rudzi 3.1 (yakajairwa), Rudzi 3.2 (ine chapupu chemumwe munhu). Kuongororwa kwemumwe munhu neSGS, BV, DNV, TÜV kunowanikwa.
6. Mashandisirwo - Kwakapindwa neSA210 A-1 Rifled Tubes Excel
Machubhu asina musono ane maburi akawanda anoshandiswa zvakanyanya mumadziro emvura emaboiler emagetsi ane simba guru uye anonyanya kukosha (anowanzo kuve ne300,000 KW zvichikwira). China yega inoshandisa matani angangoita 25,000–30,000 emachubhu ane maburi gore rega rega nechinangwa ichi. Magiredhi emhando yepamusoro anosanganisira SA210 Grade A-1, SA210 Grade C, uye SA213 T2.
Mashandisirwo chaiwo anosanganisira:
l Mapaneru emadziro emvuramumaboilers ane simba guru
l Mapaneru emadziro emvura akasimba/akakosha zvikurusimba rinodarika 300,000 KW
l Nzvimbo dzinodziya dzinobuda
l Nzvimbo dzepasi dzechotoine kupisa kwakanyanya
l Maindasitiri emakemikari nemagetsiinoda kuchinjana kwekupisa kwakanyanya
Chitubu: Magadzirirwo ehunyanzvi echubhu yesimbi isina musono ine tambo dzakawanda
7. Kuenzanisa Magiredhi - Nguva Yekushandisa SA210 A-1 vs. SA210 C vs. Zvimwe Zvinhu
| Giredhi / Zvinhu | Zviri Mukati meKabhoni | Simba reGoho | Hunhu Hunokosha | Kushandiswa Kunokurudzirwa |
| SA210 A-1 | ≤0.27% | 255 MPa (maminitsi 255) | Kugadzirwa kwakanakisa kwekukotama kunotonhora; simba riri pakati nepakati; zvakachipa zvikuru | Madziro emvura ebhoyira, nzvimbo dzinopisa zvishoma |
| SA210 C | ≤0.35% | 275 MPa (miniti) | Simba rayo guru; goho rayo rakakwirira ne5-10% kupfuura A-1; madziro akatetepa anogoneka | Machubhu eSuperheater; nzvimbo dzekupisa kwakanyanya; madziro emvura ane kumanikidzwa kwakanyanya |
| SA213 T2 | 0.10-0.20% | 205 MPa (miniti) | Cr-Mo (0.5%Cr, 0.5%Mo); kudzivirirwa kwekupisa kwakanyanya kwakawedzerwa | Machubhu ebhoyira anodziya zvakanyanya; nzvimbo dzekuchenesa |
| SA213 T12 | 0.05-0.15% | 220 MPa (maminitsi 220) | 1%Cr-0.5%Mo alloy; simba rakanaka kwazvo rekukambaira pakupisa kwakakwira | Madziro ebhoyira ane simba guru; misoro yekupisa kwakanyanya |
| SA209 T1a | 0.10-0.20% | 205 MPa (miniti) | Cr-Mo (0.5%Cr, 0.5%Mo); zvakafanana neT2 | Machubhu emadziro emwenje; mashandisirwo ekumanikidzwa kwakanyanya |
Kusarudza giredhi rakakodzera kwakakosha — kushandisa giredhi diki (T2/T12) kunowedzera mitengo yezvinhu zvisina kufanira, ukuwo kushandisa giredhi resimbi yekabhoni (A-1) munzvimbo dzinopisa zvakanyanya kunogona kukanganisa kutadza kwemachubhu nekuda kwekukuvara kunokwira.*
8. Mibvunzo Inowanzo bvunzwa (Mibvunzo Inowanzo bvunzwa)
Mubvunzo 1: Ndeipi mukana wekutamisa kupisa kupfuura machubhu akatsetseka?
A: Machubhu akajairwa ane marobho akawanda (30-degree helix angle) anovandudza kushanda zvakanaka kwekupisa ne30% zvichienzaniswa nemachubhu akatsetseka. Machubhu akagadziriswa (40-degree+ helix angle) anogona kuwedzera 20%, kuti awedzere kushanda zvakanaka ne50% kana kupfuura.
Mubvunzo wechipiri: Ndezvipi zvinhu zvinogona kushandiswa kugadzira machubhu ane pfuti?
A: Zvinhu zvakajairika zvinosanganisira ASME SA210 Giredhi A-1, SA210 Giredhi C, uye SA213 T2. Kunyange zvazvo SA213 T2 (Cr-Mo alloy) ichigonawo kushandiswa nepfuti, inodhura zvakanyanya uye inowanzo chengeterwa nzvimbo dzinopisa zvakanyanya. Womic Steel inogonawo kugadzira machubhu ane pfuti muSA213 T12, SA213 T22, nedzimwe mhando dzakagadzirwa zvichienderana nezvinodiwa nemutengi.
Mubvunzo 3: Unoona sei geometry yembabvu yemukati?
A: Huwandu hwembabvu, kukwirira kwembabvu, upamhi hwembabvu, urefu hwepitch, uye helix angle zvinosimbiswa uchishandisa precision optical comparators kana profilometers. Mishumo yakazara inowanikwa kune yega yega batch.
Mubvunzo wechina: Machubhu ane pfuti anowanikwa here muhukuru hwakagadzirwa?
A: Ehe. Tinogona kugadzira machubhu ane rifled zvichienderana nezvinodiwa nevatengi, kusanganisira OD yakagadzirwa, ukobvu hwemadziro, nhamba yembabvu dzinotanga (4 kana 6), helix angle, uye rib geometry. Ndapota tipei zvamunoda kuti mugadzirise mhinduro yacho.
Mubvunzo 5: Ndezvipi zvigadzirwa zvepamusoro zviripo?
A: Kupedzisa kwakajairika kunonamirwa uye kunonyungudutswa (AP) kuti zvive zvakanaka kunze nemukati. Kupedzisa kwakajeka (BA) kana kupukutwa kunowanikwa kana ukakumbira.
Mubvunzo 6: Ndezvipi zvitupa zvamunopa?
A: Chitupa Chekuyedza Chigayo zvichienderana neEN 10204 Rudzi 3.1 (yakajairwa), Rudzi 3.2 neuchapupu hwevamwe (SGS, BV, DNV, TÜV) huripo. Kuwanikwa kwakazara kubva panhamba yekupisa kusvika pachubhu yega yega yakapedzwa.
Mubvunzo 7: Munopa kuongororwa kwebato rechitatu here?
A: Ehe. Tinopa rubatsiro pakuongororwa neSGS, BV, DNV, TÜV, ABS, LR. Takaona PMI, divi rekuongorora, uye kuyedzwa kwemichina zviripo kana zvakumbirwa.
Mubvunzo wechisere: Ndeipi nguva yakajairika yekutumira machubhu ane rifled eSA210 A-1?
A: Panyaya dzezvinodiwa (Φ28.6×6.2, Φ38.1×7.5, nezvimwewo), nguva yekutumira zvinhu inenge mazuva angangoita 30–45 kubva pakusimbiswa kweodha. Mitemo yakagadzirirwa vatengi inoda mazuva 45–60.
Mubvunzo 9: Ndeipi kona yepamusoro yehelix inogoneka pamichina yeSA210 A-1 rifled tubes?
A: Makona emota dzemudenga anotangira pa30° kusvika 60°, zvichienderana nekushandiswa kwacho uye zvipingamupinyi zvejometri. Magadzirirwo akagadziridzwa ane makona emota dzemudenga anosvika 60° akaongororwa uye akakodzera madziro emvura ebhoyira anoshanda zvakanyanya.
Mubvunzo 10: Munogona here kupa machubhu ane rifled muU bent configurations?
A: Ehe, tinopa machubhu ane mapfuti anokotama ane mandrels anokotama, zvichiteverwa nekupisa kwakazara uye 100% NDT yenzvimbo inokotama. Ndokumbirawo mukumbire mutengo wakasiyana weU bend.
Mubvunzo 11: Munogona here kupa machubhu ane rifled ane chitupa cheNACE MR0175?
A: Simbi yekabhoni yeSA210 Grade A-1 haiwanzo kutsanangurwa kuti ishandiswe sei (H₂S). Kune mashandisirwo anoda kushandiswa kwepfuti uye kushandiswa kwesimba, tinokurudzira magiredhi emhando yealloy (semuenzaniso, SA213 T2) ane hunyanzvi hweNACE. Ndapota bvunzai timu yedu yeinjiniya kuti muwane zvinodiwa.
Mubvunzo 12: Upfu hwemadziro hushoma hupi hwekugadzira machubhu ane pfuti?
A: Ukobvu hwemadziro hunogona kugadzirwa hunoenderana nedhayamita yekunze uye chimiro chembabvu chaiyo. Pakugadzirwa kwakajairika, ukobvu hwemadziro ≥4.0mm hunokurudzirwa pakushandisa pfuti dzakavimbika. Ndapota taurai nesu kuti tikurukurei nezvezvinodiwa nehukuru hwenyu.
Mubvunzo 13: Maitiro ekudhonza anotonhora anokanganisa here maitiro emuchina wechubhu?
A: Maitiro ekudhonza nechando anoshanda - anoomesa chinhu, zvichiwedzera simba. Zvisinei, kugadzirisa kwekupedzisira kwemvura (kugadzirisa) kunodzoreredza kugona kwechinhu uye kunoita kuti hunhu hwemuchina huenderane nezvinodiwa neASTM A210 Grade A-1. Kugadzirisa kunoitwa mushure mekunge kudhonza kwekupedzisira kwechando kwapfuura.
Mubvunzo 14: Unogona kugadzira machubhu ane rifled ane mbabvu dzine lead 6 (6-start) here?
A: Ehe. Machubhu ane malead akawanda anowanikwa ane magadzirirwo e4-start kana 6-start. Huwandu hwemalead hunosarudzwa zvichienderana nekushanda kwekupisa kunodiwa uye dhayamita yechubhu. Ndapota taurai zvamunoda panguva yekubvunza.
Mubvunzo 15: Machubhu ane rifle eSA210 Grade A-1 anogona kupihwa here kana U ichikombama?
A: Ehe, tinopa machubhu ane rifled ane mandrels emukati anokotama kuti adzivirire mafambiro embabvu. Mushure mekukotama, kurapwa kwekupisa kunorerutswa nekumanikidzwa uye 100% NDT ye bend radius kunoitwa. Kuwanikwa kwe U-bend kunoenderana nehukuru hwekupedzisira; ndapota taura nesu kuti tizive kuti zvinogoneka here.
Mubvunzo 16: Machubhu eSA210 Grade A-1 ane rifled anowanikwa here muchimiro cheBA chakajeka?
A: Ehe, tinogona kupa machubhu ane rifled ane bright annealed (BA). Izvi zvinoda mhepo inodzivirira panguva yekupisa kwekupedzisira (semuenzaniso, hydrogen kana dissociated ammonia) kudzivirira oxidation. BA finish yakakodzera kushandiswa kwekuchenesa kwakanyanya uye kwakachena, kunyangwe ichidhura kupfuura standard annealed and pickled (AP) finish.
Bata Womic Steel
Kana muine mibvunzo, rutsigiro rwehunyanzvi, kana kukumbira mutengo wezvinodiwa zvenyu zveSA210 Grade A-1 multi-lead rifled seamless tube, ndapota taurai nesu zvakananga.
Webhusaiti: www.womicstainless.com
Etsamba: info@womicstainless.com
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Womic Steel – Mugadziri wenyu wehunyanzvi uye mubatsiri akavimbika wemachubhu eboiler asina musono eSA210 Grade A-1 ane rifled rifled akawanda, machubhu ane ribbed anodhonzwa mukati memvura kuti ashande zvakanaka uye anobatsira zvikuru pamadziro emvura.
Nguva yekutumira: Chivabvu-28-2026