Method of continuous casting particulate reinforced metal matrix composites on different frequency multi-electromagnetic field
A technology of particle reinforcement and composite materials, applied in the field of material processing, to achieve the effects of improved friction and wear resistance, good internal quality, and overcoming poor casting performance
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[0035] Implementation example 1: preparation (Al 3 Zr (s) +Al 2 o 3(s) ) particle reinforced A359 matrix composite
[0036] Raw materials: base metal: A359 alloy; solid powder: industrial zirconium carbonate (Zr(CO 3 ) 2 ) powder (purity: 99.20%), refining degassing agent and slag removal agent;
[0037] In situ reaction equation: 7Al (l) +Zr(CO 3 ) 2(s) =Al 3 Zr (s) +2Al 2 o 3(s)
[0038] Particle reinforcement phase: Al 3 Zr (s) and Al 2 o 3(s)
[0039] The operation (preparation) process is divided into three steps:
[0040] (1): Metal smelting and powder preparation:
[0041] The A359 alloy is melted in a 60kW power frequency aluminum melting furnace and the temperature is raised to 900°C, and a degassing agent is added to the metal refining holding furnace 1 for slag removal. All reagents used were fully dried at 250°C to 300°C, among which Zr(CO 3 ) 2 Grind into fine powder (particle size less than 100μm), weigh and pack with aluminum foil for use, ...
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