Choose China Aluminum Sheet with good quality and great price, please contact us Huawei Aluminum! We have a strict quality inspection team to ensure the quality of the aluminum sheets produced. The flatness of the aluminum plate is an important quality indicator. The method of inspecting the surface quality and flatness of aluminum plates in China is to place the aluminum plate to be inspected on the inspection platform, check whether the surface of the aluminum plate has excessive defects with the naked eye, and then check the gap between the aluminum plate and the platform, and it does not exceed the standard. Mark one end of a qualified aluminum flat plate with the alloy name, condition name, thickness, lot number, serial number, and qualified inspection stamp.
In order to check the mechanical properties, internal organization, process performance, etc. For finished Chinese aluminum flat sheets, each batch of products must be cut and tested according to the items specified in the standard and process to ensure that the quality of aluminum flat sheets meets the product standards and meets the requirements of users&# 8217;
The mechanical properties of Chinese aluminum sheets were tested. According to the alloy state, 2%, 5%, and 10% samples are taken from each batch, and 100% of the mechanical properties of the important products are tested. If one sample is found to be unacceptable in the mechanical property test, the Aluminum Sheet Plate for Sale of the unacceptable sample shall be tested twice. If there is still one unqualified sample in the sample, it will be scrapped. The supplier can re-inspect the sections of aluminum plates represented by the unqualified samples one by one. Deliveries that are qualified, and those that do not meet the requirements are considered invalid.
For the aluminum plate with important uses, samples should also be sampled for metallographic inspection, and the whole batch of waste products should be fired. According to the relevant regulations of technical standards, some products also need to undergo aluminum cladding inspection, grain size inspection, delamination inspection and ultrasonic inspection. According to the standard, delivery can only be accepted after a satisfactory inspection.