What are the advantages of using SPCC sheets for electronic device housings?
A: The surface is smooth, meeting the appearance requirements of electronic devices; it is easy to process into complex shapes, adapting to different equipment structures; it has good welding and assembly performance, improving production efficiency.
How to handle oxidation discoloration on SPCC sheets?
A: Slight oxidation discoloration can be removed by grinding and polishing; if the oxidation is severe, it can be done by pickling followed by passivation treatment, and then proper sealing and protection should be implemented to prevent re-oxidation.
What are the thickness tolerance requirements for SPCC sheets?
A: They must conform to the corresponding standard, such as Baosteel Q/BQB402. Different thickness specifications have different tolerances, and the accuracy grade will be marked, such as grade B, grade A, etc., to ensure that the dimensional accuracy is suitable for processing requirements.
What is the difference between SPCC sheets and SPCE sheets?
A: In SPCE, E represents deep drawing grade, and its elongation and deep drawing performance are far superior to ordinary grade SPCC. SPCE is often used for stamping and drawing complex parts, while SPCC is suitable for general forming scenarios.
What to do if an SPCC sheet fails the re-inspection? A: If the initial inspection of items such as tensile strength and hardness fails, double the number of samples can be taken from the same batch for retesting; if one of the indicators still fails the retest, the batch is deemed unqualified and must be downgraded or scrapped.