Aluminum die castings are used for the production of aluminum and aluminum alloy products, and the quality of aluminum die castings determines the quality of aluminum alloy parts. Therefore,China Aluminum Die Casting Products is particularly interesting. For this, there are also very strict standards in the industry to test the chemical composition and mechanical properties of aluminum die castings.
(1) Chemical composition
{1} The inspection methods, inspection rules and re-inspection of the chemical composition of aluminum alloys should comply with the requirements of GB/T15115.
{2} The sample of chemical composition can also be taken from die casting, but it must meet the requirements of GB/T15115.
(2) Mechanical properties
{1} The inspection method, inspection frequency and inspection rules of mechanical properties should meet the requirements of GB/T15115.
{2} When the die casting body is used as the sample, the size of the cut part and the test form shall be negotiated between the supplier and the buyer.
{3} The inspection of the geometric dimensions of the die castings can be carried out according to the batch inspection or according to the provisions of GB2828 and GB2829, and the inspection results should meet the provisions of 3.3 of this standard.
{4} The ex-factory inspection of the surface quality of die castings shall be inspected piece by piece, and the inspection results shall comply with the provisions of this standard.
{5} The surface roughness of die castings shall be implemented according to GB/T6060.1.
{6} The surface of the die-casting parts to be polished shall be implemented in accordance with the provisions of GB/T 6060.4.
{7} The surface of die-casting parts that need to be shot blasted and sandblasted shall be implemented in accordance with the provisions of GB/T 6060.5.
{8} The test methods and inspection rules for the internal quality of die castings may include: X-ray photographs, non-destructive testing, metallographic pictures, and die casting profiles, etc. The inspection results should meet the requirements of 3.4.6 of this standard.
{9} Other test methods and inspection rules shall be implemented in accordance with GB/T15114.
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