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Aluminum Die Casting

Cast aluminum is a process method of forming the required shape aluminum parts by pouring it into the mold in a molten state. The aluminum used in cast aluminum is called cast aluminum alloy.

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Aluminum Die Casting

Aluminum Die Casting

    Cast aluminum is a process method of forming the required shape aluminum parts by pouring it into the mold in a molten state. The aluminum used in cast aluminum is called cast aluminum alloy.
overview
    Is a pure aluminum or aluminum alloy ingot according to the standard proportion of ingredients, after artificial heating to turn it into aluminum alloy liquid or melting state, and then through a professional mold or the corresponding process of aluminum liquid or melting state of aluminum alloy pouring cavity, cooled to form the required shape of aluminum parts of a process.
The aluminum used in cast aluminum is called: cast aluminum alloy. Commonly used methods of cast aluminum are: sand casting, die casting, low-pressure casting, precision casting, permanent casting and so on.
Pay attention to the main points
First, the defect characteristics of oxidation slag: oxidation slag is distributed in the upper surface of the casting, in the casting does not ventilate the corner. Breaks are mostly gray-white or yellow, x-rayed or mechanically found, or in alkali washing, acid washing or anodization.
Cause: 1. Furnace material is not clean, return furnace material use is too much. 2. The pouring system is poorly designed. 3. The slag in the alloy fluid has not been removed. 4. The pouring operation is not correct and is brought into the slag. 5. There is not enough time to settle after refining the deterioration treatment. Prevention method: 1. Furnace material should be blown sand, the use of return furnace material should be appropriately reduced. 2. Improve the design of the pouring system and improve its slag-blocking capacity 3. Slag with an appropriate melt 4 Pouring should be smooth and should focus on slag 5 The alloy fluid should be lying for a certain period of time before pouring after refining.
Second, pores, defect characteristics: three casting wall gas holes are generally round or oval, with a smooth surface, generally bright oxidation skin, sometimes oily yellow. Surface pores, bubbles can be found through blasting, internal pores, bubbles can be found through X-ray or machining, bubbles on the X-ray negative black.

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