Coating processes – Spray coating utilizing flame or plasma heat – Nonuniform or patterned coating
Patent
1995-07-12
1997-04-29
Padgett, Marianne
Coating processes
Spray coating utilizing flame or plasma heat
Nonuniform or patterned coating
427455, 427580, 21912137, 21912147, B05D 132, C23C 408, B23K 900, H05H 148
Patent
active
056247176
ABSTRACT:
The invention relates to a process for coating or hardfacing recharging a part by means of a plasma transferred arc.
According to the process, on the part (1) to be coated or hardface is deposited at least one weld bead (7a, 7b, 7c) of said material solely by means of the plasma transferred arc (5), by moving the plasma relative to the part at a speed of 1.5 to 50 m/min and using a power of the plasma such that the surface of the part is melted over a thickness at the most equal to 0.5 mm and so that the enlargement of the grains in the melted area does not exceed 10%, without cooling the part during recharging.
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Dacquet J. Phillipe
Ducos Maurice
Proner Alain
Padgett Marianne
SNMI-Societe Nouvelle de Metallisation Industrie
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