Die Casting Supplier Introduces The Functions Of Cast Aluminum
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Die Casting Supplier introduces a wide range of weight and size of cast aluminum parts. The lighter one weighs only a few grams, the heavier one is 400 tons, the thinner wall thickness is only 0.5 mm, the thicker one is more than 1 meter, and the length ranges from a few millimeters to more than ten meters. Can meet the requirements of different industries. Generally, for the appearance quality of aluminum castings, the surface roughness of aluminum castings can be judged by comparing samples, and small cracks on the surface can be inspected by the coloring method and the magnetic powder method. The internal quality of aluminum castings can be inspected and judged by audio, ultrasonic, eddy current, X-ray and gamma rays.
The quality of aluminum castings has a great influence on the performance of mechanical products. For example, the size of the impeller, the size of the casing and the cavity, the surface accuracy and surface roughness of various pumps directly affect the working efficiency of the pump and the hydraulic system, energy consumption and the development of cavitation. The strength and cold resistance of the cylinder block, cylinder head, cylinder liner, piston ring, exhaust pipe and other cast aluminum parts of the internal combustion engine directly affect the service life of the engine.
The selection principle of the casting method of aluminum castings: Sand casting is a suitable choice for casting aluminum parts, mainly because sand casting is lower in cost than other casting methods, the production process is simpler, and the production cycle is shorter. When wet molds cannot meet the requirements, please consider using clay sand surface dry sand molds, dry sand molds or other sand molds. The casting method of aluminum castings should be suitable for production batches. Due to the high price of equipment and molds, low pressure casting, die casting, centrifugal casting and other casting methods are only suitable for mass production. Aluminum castings can be single castings or mass production.
The shrinkage porosity of cast aluminum usually occurs at the thicker part of the riser root near the inner runner, the wall thickness and the thin wall with a larger plane transition. The as-cast fracture is gray, and the light yellow after heat treatment is grayish white, light yellow or gray black.
Through the above introduction, Aluminum Die Casting Manufacturers hopes that you can simply refer to the content of this article in future use.