420 SSIntambo yokufutha eshisayo (yensimbi engagqwali) iyinto esezingeni eliphezulu eyenzelwe ukusetshenziswa kokufutha nge-arc. Yaziwa ngokumelana kwayo okuhle nokugqwala, ubulukhuni obuphezulu, kanye nokumelana okuhle nokuguguleka, i-420 SS iyinsimbi engagqwali ye-martensitic enikeza ukuvikelwa okuqinile kobuso. Le ntambo ivame ukusetshenziswa ezimbonini ezifana ne-petrochemical, ukukhiqizwa kwamandla, izimoto, kanye nezolwandle ukuze kuthuthukiswe ukuqina nokuphila kwesikhathi kwezingxenye ezibalulekile. Intambo yokufutha eshisayo ye-420 SS ilungele ukusetshenziswa okudinga ungqimba oluqinile, olungagugi olunokumelana nokugqwala okumaphakathi.
Ukulungiswa kwendawo efanele kubalulekile ekufinyeleleni imiphumela emihle ngentambo yokufutha yokushisa engu-420 SS. Indawo ezogqokwa kufanele ihlanzwe ngokucophelela ukuze kususwe ukungcola okufana namafutha, uwoyela, ukungcola, nama-oxide. Ukuqhumisa i-grit nge-aluminium oxide noma i-silicon carbide kuyanconywa ukuze kufezwe ubulukhuni bendawo obungama-micron angu-50-75. Indawo ehlanzekile nehlungiwe ithuthukisa ukunamathela kwengubo yokufutha yokushisa, okuholela ekusebenzeni okuthuthukisiwe kanye nokuphila isikhathi eside.
| Isici | Ukwakheka (%) |
|---|---|
| Ikhabhoni (C) | 0.15 – 0.40 |
| I-Chromium (Cr) | 12.0 – 14.0 |
| I-Manganese (Mn) | Ubuningi obungu-1.0 |
| I-Silicon (Si) | Ubuningi obungu-1.0 |
| I-Phosphorus (P) | Umkhawulo ongu-0.04 |
| I-Sulfur (S) | Umkhawulo ongu-0.03 |
| Insimbi (Fe) | Ibhalansi |
| Impahla | Inani Elijwayelekile |
|---|---|
| Ubuningi | 7.75 g/cm³ |
| Indawo Yokuncibilika | 1450°C |
| Ubulukhuni | 50-58 HRC |
| Amandla esibopho | 55 MPa (8000 psi) |
| Ukumelana ne-Oxidation | Kuhle |
| Ukuqhuba Okushisayo | 24 W/m·K |
| Ububanzi Bokujiya Kokumboza | 0.1 – 2.0 mm |
| Ukubhoboka kwe-Porosity | < 3% |
| Ukumelana Nokugqoka | Phezulu |
Intambo yokufutha yokushisa engu-420 SS iyisisombululo esihle kakhulu sokuthuthukisa izakhiwo ezingaphezulu zezingxenye ezivezwe ekugugeni nasekugqwaleni okulinganiselwe. Ubulukhuni bayo obuphezulu kanye nokumelana okuhle nokuguguleka kwenza ifaneleke ekusetshenzisweni okudinga ukugqoka okuhlala isikhathi eside. Ngokusebenzisa intambo yokufutha yokushisa engu-420 SS, izimboni zingathuthukisa kakhulu impilo yesevisi kanye nokuthembeka kwemishini yazo kanye nezingxenye.
150 0000 2421