Circuit shielding cover manufacturers, the factors that cause the shielding cover to turn yellow + the overall solution of precision stamping parts

Circuit shielding cover manufacturers, shielding covers In our practical applications, we often encounter the phenomenon of yellowing on the surface. It seriously affected the appearance, quality, and use of customers. Xiaoshuo has compiled some information and will work with you to understand what causes the shielding cover to turn yellow: 1. The production of the shielding cover does not control the raw materials in place, so that the material of the shielding cover, before the production, the foreign cupronickel material is already natural Oxidation produces a yellowing phenomenon. 2. The cleaning after the shielding cover is produced, and the improper combination of the cleaning solution prescription will cause a chemical reaction to the nickel silver material, causing the shielding cover to turn yellow. 3. In the soldering process of the SMT factory, some formulas are not matched properly, which causes the yellowing of the surface of the shielding cover when the shield is over the furnace at a high temperature. 4. The storage environment is not up to standard. Under normal circumstances, metal materials will produce natural oxidation. If the storage environment does not meet the standard, the oxidation of the shielding cover will be accelerated, thereby accelerating the yellowing of the shielding cover. Hardware, 15 years of focus on circuit shielding manufacturers, 20,000+ sets of customized mold production experience, 2 days for proofing, 4 days for mold making, and 2 days for delivery. The flatness of the shielding cover is controlled within 0.07mm, the daily production capacity is 3 million strokes, and 16 quality inspections are strictly controlled. It can quickly solve the urgent problem of time when choosing the shielding cover for you, solve the problem of flatness, solve the problem of production quality, let you choose, choose to rest assured!