Nhanganyaya
IyoASTM A312 UNS S30815 253MA Simbi Isina Kugadzikaisimbi isina ngura inoshanda zvakanyanya inozivikanwa nekusagona kwayo kuoxidation, ngura, uye hunhu hwakanaka hwemakanika munzvimbo dzinopisa zvakanyanya.253MAYakagadzirirwa kushandiswa mumabasa anoda kugadzikana pakupisa kwakanyanya, kunyanya mumaindasitiri ekupisa neovheni. Kusakwanisa kwayo kukwira, carburization, uye oxidation yakawanda kunoita kuti ive chinhu chakavimbika kune nharaunda dzakaoma.
Mhando iyi yesimbi isingatsvi inoshandiswa zvakanyanya mumaindasitiri anopisa zvakanyanya uye yakakodzera kushandiswa uko simba rakawanda uye kuramba kuoxidation kwakakosha.
Mitemo uye Magadzirirwo
IyoASTM A312 UNS S30815 253MA Simbi Isina Kugadzikainogadzirwa zvichienderana nezvinodiwa zvinotevera:
- ASTM A312: Zvakajairwa zveMapaipi eSimbi Isina Musono, Akasungirirwa, uye Anotonhora Zvakanyanya Anoshandiswa muAustenitic
- UNS S30815: Unified Numbering System for Materials inoratidza kuti iyi imhando yesimbi isina ngura ine alloy yakawanda.
- EN 10088-2: European Standard yeStainless Steel, ichitarisa zvinodiwa pakuumbwa kwechinhu ichi, hunhu hwemakanika, uye kuyedzwa.
Kuumbwa kweMakemikari(% neHuremu)
Kuumbwa kwemakemikari e253MA (UNS S30815)Yakagadzirirwa kupa simba rakanaka rekudzivirira oxidation uye simba rekupisa kwakanyanya. Muumbirwo wakajairika ndewekuti:
| Chinhu | Kuumbwa (%) |
| Chromium (Cr) | 20.00 - 23.00% |
| Nickel (Ni) | 24.00 - 26.00% |
| Silikoni (Si) | 1.50 - 2.50% |
| Manganese (Mn) | 1.00 - 2.00% |
| Kabhoni (C) | ≤ 0.08% |
| Phosphorus (P) | ≤ 0.045% |
| Sarufa (S) | ≤ 0.030% |
| Nitrogen (N) | 0.10 - 0.30% |
| Simbi (Fe) | Kuenzana |
Zvimiro zveChinhu: Hunhu Hukuru
253MA(UNS S30815) inosanganisa simba rakanaka kwazvo rekupisa kwepamusoro-soro nekudzivirira okisijeni. Izvi zvinoita kuti ive yakakodzera kushandiswa munzvimbo dzakaoma, dzakadai semaovheni uye zvinochinja-chinja kupisa. Chinhu ichi chine huwandu hwakawanda hwechromium nenickel, zvichipa simba rakanaka rekudzivirira okisijeni pakupisa kusvika 1150°C (2100°F).
Zvimiro zvemuviri
- Kuwanda kwevanhu: 7.8 g/cm³
- Nzvimbo Yokunyunguduka: 1390°C (2540°F)
- Kufambisa kwekupisa: 15.5 W/m·K pa100°C
- Kupisa Kwakasiyana: 0.50 J/g·K pa100°C
- Kuramba kweMagetsi: 0.73 μΩ·m pa20°C
- Simba reKusimba: 570 MPa (zvishoma)
- Simba reGoho: 240 MPa (zvishoma)
- Kureba: 40% (zvishoma)
- Kuoma (Rockwell B): HRB 90 (yakanyanya)
- Modulus yeElasticity: 200 GPa
- Chiyero chaPoisson: 0.30
- Kudzivirira kwakanyanya kupisa kwakanyanya, kukwira, uye carburization.
- Inochengetedza simba uye inoumba kugadzikana pakupisa kunodarika 1000°C (1832°F).
- Kudzivirira zvakanyanya mamiriro ekunze ane acidic uye alkaline.
- Haipindi mukupwanyika kwengura kunokonzerwa nesarufa nekloridhi.
- Inogona kutsungirira mamiriro ekunze ane hukasha, zvichiita kuti ive yakakodzera kushandiswa mukugadzira makemikari uye mumaindasitiri anodziya zvakanyanya.
Zvivakwa zveMichina
Kuramba Kuoxidation
Kuramba Kuora
Maitiro Ekugadzira: Unyanzvi Hwekugadzira Zvinhu Neunyanzvi
Kugadzirwa kweMapaipi eSimbi Isina Kusimba e253MAinotevera nzira dzekugadzira dzemazuva ano kuti ive nechokwadi chekuti yakagadzirwa zvakanaka uye inogara kwenguva refu:
- Kugadzira Mapaipi Asina Musono: Yakagadzirwa kuburikidza nekubvisa madziro, kuboora madziro, uye maitiro ekureba kuti pave nemapaipi asina musono ane ukobvu hwakafanana pamadziro.
- Maitiro Ekushanda Nechando: Maitiro ekudhonza kana kukweva zvinhu zvisina kutonhora anoshandiswa kuti pave nehukuru hwakarurama uye nzvimbo dzakatsetseka.
- Kurapa Kupisa: Mapaipi anopiswa pakupisa kwakasiyana kuti awedzere kunaka kwawo uye kushanda kwawo pakupisa kwakanyanya.
- Kusvina & Kunzwa Kunyara: Mapaipi anobviswa mapurasitiki esimbi nema oxide uye anoiswa panze kuti ave nechokwadi chekuti ngura haiperi.
Kuedzwa uye Kuongorora: Kuvimbisa Hunhu
Womic Steel inotevedzera nzira yekuyedza yakasimba kuti ive nechokwadi chekuti mhando yepamusoro yezvigadzirwaMapaipi eSimbi Isina Kusimba e253MA:
- Kuongorora Kuumbwa Kwemakemikari: Yakasimbiswa uchishandisa matekiniki espectroscopic kusimbisa kuti alloy inosangana nezvakatsanangurwa.
- Kuedzwa kweMichina: Kukwesha, kuomarara, uye kuyedzwa kwekukanganisa kuti uone kushanda kwechinhu patembiricha dzakasiyana.
- Kuedzwa kweHydrostatic: Mapaipi anoedzwa kuti agare kwenguva refu here kana kuti kwete kuti arambe achibuda mvura.
- Kuedzwa Kusingaparadze (NDT): Inosanganisira kuyedzwa kwe ultrasonic, eddy current, uye dye penetrant kuti ione chero zvikanganiso zvemukati kana pamusoro.
- Kuongorora Kwekuona & Kuyera: Pombi yega yega inoongororwa nemaziso kuti ionekwe kuti inopedzwa sei, uye kurongeka kwayo kunoongororwa zvichienderana nezvinodiwa.
Kuti uwane rumwe ruzivo kana mutengo wakasarudzika, taura neWomic Steel nhasi!
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Nguva yekutumira: Ndira-08-2025