Manufacturing method of brazing material

Abstract

Abstract PURPOSE:To obtain a blank material for brazing formed continuously with a uniform clad layer having good adhesion at a low cost, by melt-spraying a brazing alloy on the surface of an Al extrudate right after extrusion thereby forming the coating layer of the brazing alloy. CONSTITUTION:Melt spraying guns 4 are disposed so as to melt-spray a brazing alloy perpendicularly to the surface of an Al extrudate 2 from an extruder 1 from above the extrudate 2 or, if necessary, from the conveyance rolls 3 for the extrudate 2. Plural pieces of the guns 4 are properly disposed according to the shape and purpose of the extrudate 2 in this case to make the layer to be melt sprayed uniform. In the case of, for example, an extrudate for a heat sink, a brazing alloy of Al-Si is melt-sprayed to the brazing parts or the coating of the brazing alloy is formed thereon by melt spraying the brazing alloy of a low m.p. in order to provide the stronger brazing between the base material and the extrudate in the stage of extrusion.

Inventors

• 👤 Masashi Mochizuki
• 👤 正志 望月
• 👤 Jun Sugihara
• 👤 杉原　諄
• 👤 Masamichi Suzuki
• 👤 正道 鈴木

Bibliographic Details