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2. Elaboration
2.1 Arc furnace processing
Refractory steels are mainly produced by melting in an electric arc furnace with basic refractory lining (figure 1 ). The charge introduced into the furnace consists of scrap metal, steel offcuts sorted according to their chemical composition, ferroalloys (ferrochromium, ferromanganese, ferrosilicon) and pure metals. This charge also includes quicklime, the purpose of which is to form the slag that will fix the phosphorus in the form of lime phosphate.
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Standards and norms
- Aciers moulés réfractaires. - NF EN 10295 – AFNOR - Décembre 2002
- Aciers et alliages de nickel réfractaires. - NF EN 10095 – AFNOR - Juillet 1999
- Rivet wire in aluminum alloys, steel, stainless and refractory alloys – Dimensions. - NFL 21-106 – AFNOR - Janvier 1975
- Rivets in steel, stainless and refractory alloys – Technical specifications. - NFL 21-203 – AFNOR - Novembre 1974
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