Muyero weA335 (ASTM A335/ASME S-A335) imhando yepasi rose yemapombi esimbi asina musono esimbi yeferritic alloy alloy anoshandiswa munzvimbo dzinopisa zvakanyanya uye dzine kumanikidzwa kwakanyanya. Inoshandiswa zvakanyanya mumaindasitiri epetrochemical, magetsi (simba rekupisa/nyukireya), mabhaira nekugadzira mabhaira. Mapombi esimbi ari pasi pechiyero ichi ane simba rakanaka rekupisa kwakanyanya, kuramba kukambaira uye kuramba ngura, uye akakodzera mamiriro ekushanda akaipisisa.
Zvinhu zvakajairika uye kuumbwa kwemakemikari eA335 standard
Zvinhu zveA335 zvinosiyaniswa nenhamba dze "P", uye mamakisi akasiyana akakodzera tembiricha dzakasiyana nenzvimbo dzinopisa:
| Giredhi | Zvikamu zvikuru zvemakemikari | Hunhu | Tembiricha inoshanda |
| A335 P5 | Cr 4-6%, Mo 0.45-0.65% | Haipindi ngura yesarufa uye inokambaira patembiricha yepakati | ≤650°C |
| A335 P9 | Cr 8-10%, Mo 0.9-1.1% | Inodzivirira kupisa kwakanyanya uye ine simba rakawanda | ≤650°C |
| A335 P11 | Cr 1.0-1.5%, Mo 0.44-0.65% | Kugona kusundira zvakanaka uye simba repakati nepakati | ≤550°C |
| A335 P12 | Cr 0.8-1.25%, Mo 0.44-0.65% | Kufanana neP11, sarudzo inodhura zvishoma | ≤550°C |
| A335 P22 | Cr 2.0-2.5%, Mo 0.9-1.1% | Kurwisa ngura yehydrogen, inowanzoshandiswa mumaboiler emagetsi | ≤600°C |
| A335 P91 | Cr 8-9.5%, Mo 0.85-1.05% | Simba rakakwirira kwazvo, rinosarudzwa pakushandisa mayuniti anonyanya kukosha | ≤650°C |
| A335 P92 | P91 + W | Kuramba kupisa kwakanyanya, kwakakodzera mayuniti epamusoro-soro | ≤700°C |
Maitiro ekushandisa mapaipi esimbi eA335
1. Indasitiri yemafuta
A335 P5/P9: mayuniti ekupwanya zvinhu mufekitori, mapaipi ane sarufa anodziya zvakanyanya.
A335 P11/P12: zvinochinja-chinja kupisa, mapaipi ekufambisa utsi hwemhepo ane tembiricha iri pakati nepakati.
2. Indasitiri yemagetsi (simba rekupisa/simba renyukireya)
A335 P22: Mapaipi makuru emhepo inopfungaira nemisoro yenzvimbo dzemagetsi dzinoshandiswa pakupisa.
A335 P91/P92: Zvikamu zvinokosheswa zvakanyanya/zvinokosheswa zvakanyanya, mapaipi ane simba renyukireya ane simba repamusoro.
3. Maboiler nemidziyo yekumanikidza
A335 P91: Zvikamu zvemaboiler emazuva ano anoshanda zvakanyanya zvinopisa zvakanyanya.
A335 P92: Mapaipi anodzivirira kupisa kwakanyanya emaboiler ane parameter yepamusoro.
Ungasarudza sei chinhu chakakodzera cheA335? Zvinodiwa pakupisa:
Zvinodiwa pakupisa:
≤550°C: P11/P12
≤650°C: P5/P9/P22/P91
≤700°C: P92
Nzvimbo inoparadza:
Nzvimbo ine sarufa → P5/P9
Nzvimbo inoparadza yehydrogen → P22/P91
Mutengo nesimba:
Sarudzo inodhura zvishoma → P11/P12
Zvinodiwa nesimba guru → P91/P92
Miyero yepasi rose yakaenzana yemapaipi esimbi eA335
| A335 | (CHIN) | (JIS) |
| P11 | 13CrMo4-5 | STPA23 |
| P22 | 10CrMo9-10 | STPA24 |
| P91 | X10CrMoVNb9-1 | STPA26 |
Mibvunzo Inowanzo bvunzwa
Mubvunzo 1: Musiyano uripo pakati peA335 P91 neP22 ndeupi?
P91: Yakawanda chromium uye molybdenum, inodzivirira kukambaira zvakanyanya, yakakodzera mayuniti ane simba guru.
P22: Mutengo wakaderera, wakakodzera mabhoyira emagetsi echinyakare.
Mubvunzo wechipiri: Pombi yesimbi yeA335 inoda kurapwa kwekupisa here?
Kugadzirisa + kugadzirisa zvinodiwa, uye P91/P92 inodawo kudzora zvakanyanya mwero wekutonhora.
Mubvunzo wechitatu: Ko A335 P92 iri nani pane P91 here?
P92 ine simba rekudzivirira kupisa kwakanyanya (≤700°C) nekuda kwekuvapo kwetungsten (W), asi mutengo wacho wakakwirawo.
Pombi yesimbi isina musono yeA335 standard alloy chinhu chakakosha mumamiriro ekupisa kwakanyanya uye kumanikidzwa kwakanyanya. Zvinhu zvakasiyana (zvakaita seP5, P9, P11, P22, P91, P92) zvakakodzera mamiriro akasiyana. Pakusarudza, zvakakosha kufunga zvakanyanya nezvekupisa, kukora, simba uye mutengo, uye kutarisa kune zviyero zvepasi rose zvakaenzana (zvakaita seEN, JIS).
Nguva yekutumira: Chikumi-06-2025
