Inspection rules for aluminum die casting
1 Chemical Constituents
1.1the inspection method for chemical composition of aluminum alloy, inspection rules and reinspection shall comply with the requirements of GB/T15115.zinc coated steel wire strand
1.21.2 samples of chemical composition may also be selected from die castings, but must comply with the requirements of GB/T15115.
2 mechanical properties
2.1 testing methods for mechanical properties, frequency and inspection rules shall comply with the requirements of GB/T15115.
2.2 when the aluminum die casting body is used as the sample, the size and test form of the cutting part shall be agreed by the supplier and the buyer.
3. The inspection of the geometric dimensions of die castings can be carried out by batch sampling or according to the regulations of GB2828 and GB2829. The inspection results should meet the requirements of 3.3 of this standard.
4 the factory inspection of the surface quality of the die castings should be checked individually, and the inspection results should meet the requirements of this standard.
5 the surface roughness of the die castings shall be carried out according to the regulations of GB/T6060.1.
The surface of the 6 die castings shall be executed according to the requirements of GB/T 6060.4.
7 the surface of shot castings and sand blasting should be executed according to the regulations of GB/T 6060.5.
The test methods and rules for internal quality of aluminium die casting may include X-ray photographs, non-destructive testing, metallographic pictures and profile of die casting. The test results shall conform to the requirements of 3.4.6 of this standard.
9 other test methods and inspection rules shall be implemented in accordance with the provisions of GB/T15114.