Heat treatment of aluminum alloys in furnaces of the PAP type
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The PAP furnace is more economical, simpler to manufacture, and safer in operation than electric air furnaces or salt baths.
The PAP furnace produces a more uniform temperature in the working space and heats the air from room temperature to the given temperature twice as rapidly as ÉTA furnaces.
Heating of different semifinished products with sections 40–200 mm thick in loads of 80–350 kg to 500–515°C is 1.8–2.5 times more rapid in the PAP-3 furnace than in the ÉTA-2 furnace with similar dimensions in spite of the fact that the ÉTA furnace has twice the power.
The mechanical properties, resistance to corrosion and stress corrosion, and electrical conductivity of various semifinished products of alloys D16, AK6, and V65 are the same after heat treatment in the PAP-3 furnace, ÉTA-2 furnace, and the salt bath.
KeywordsAluminum Mechanical Property Furnace Heat Treatment Electrical Conductivity
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