420 SSWaya yekupfapfaidza inopisa (Stainless Steel) yakagadzirwa nemhando yepamusoro-soro kuti ishandiswe kupfapfaidza arc. Inozivikanwa nekudzivirira kwayo ngura, kuomarara kwayo, uye kuramba kupfeka zvakanaka, 420 SS isimbi isina tsvina yemartensitic inopa dziviriro yakasimba pamusoro. Waya iyi inowanzoshandiswa mumaindasitiri akadai sepetrochemical, kugadzira magetsi, mota, uye emugungwa kuti iwedzere kugara kwenguva refu uye hupenyu hwezvinhu zvakakosha. Waya yekupfapfaidza inopisa ye420 SS yakakodzera kushandiswa kunoda kuvharwa kwakasimba, kunodzivirira kupera uye kuramba ngura zvine mwero.
Kugadzirira zvakanaka pamusoro pechinhu kwakakosha kuti pave nemigumisiro yakanaka newaya ye420 SS inopisa. Pamusoro pechinhu chinofanira kuputirwa pachinhu chinofanira kucheneswa zvakanaka kubvisa tsvina yakaita semafuta, mafuta, tsvina, uye maoxide. Kuputira nealuminium oxide kana silicon carbide kunokurudzirwa kuti pave nekukombama kwepamusoro kwema microns 50-75. Pamusoro pakachena uye pakaomarara panoita kuti pave nekunamatira kwejira rekupisa, zvichiita kuti pave nekushanda kwakanaka uye kugara kwenguva refu.
| Chinhu | Kuumbwa (%) |
|---|---|
| Kabhoni (C) | 0.15 – 0.40 |
| Chromium (Cr) | 12.0 – 14.0 |
| Manganese (Mn) | 1.0 yakakwira |
| Silikoni (Si) | 1.0 yakakwira |
| Phosphorus (P) | 0.04 yakakwira |
| Sarufa (S) | 0.03 yakakwira |
| Simbi (Fe) | Kuenzana |
| Pfuma | Kukosha Kwakajairika |
|---|---|
| Kuwanda kwevanhu | 7.75 g/cm³ |
| Nzvimbo Yokunyunguduka | 1450°C |
| Kuoma | 50-58 HRC |
| Simba reChisungo | 55 MPa (8000 psi) |
| Kuramba Kuoxidation | Kugona |
| Kufambisa kwekupisa | 24 W/m·K |
| Kupfeka Ukobvu Range | 0.1 – 2.0 mm |
| Kuboorwa kwemvura | < 3% |
| Kuramba Kupfeka | Yakakwirira |
Waya yekupfapfaidza inopisa ye420 SS mhinduro yakanaka yekuvandudza hunhu hwepamusoro hwezvinhu zvinoparadzika uye ngura iri pakati nepakati. Kuoma kwayo kwakanyanya uye kuramba kwayo kupfeka zvakanaka kunoita kuti ive yakakodzera kushandiswa kunoda kuputirwa kwenguva refu uye kwenguva refu. Nekushandisa waya yekupfapfaidza inopisa ye420 SS, maindasitiri anogona kuvandudza zvakanyanya hupenyu hwebasa uye kuvimbika kwemidziyo yavo nezvikamu.
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