Aluminum castings

Aluminum castings mostly adopts low refractoriness red sand. After considering the blasting efficiency will greatly improve, after anodic oxidation and the dyeing effect is better than the above two methods. General wall thickness of aluminum castings can satisfy the requirement of shot peening pressure when, using high pressure advantageous and improve the quality of shot peening requirements, through the pill granule extrusion, reach the role of closed porosity, crack, and can improve the strength of cast aluminum surface and clean. Easy to loss and low melting furnace charge, such as magnesium and zinc, should be in the final to join. In continuous melting crucible part should be residual liquid aluminum, this is because of the copper alloy and aluminum alloy pouring temperature is low, the request is not high refractoriness, main requirements to prevent infiltration of liquid alloy casting, casting surface is bright and clean; And the characteristics of the red sand is sand is fine, and itself contains clay, high wet strength, good formability. Trial before the shot peening method the author adopts the method of round head hammer, achieve the purpose of the connection piece, the effect is remarkable. To speed up the melting furnace. When the covering flux is used, should join flux when burden begin to melt.