The phosphor bronze shielding cover is a tool used to shield electronic signals, and after a period of use, it may turn yellow. So it leads toThe reason for the yellowing of the shielding coverWhat is it? Below, the Bosi editor will explain the reasons and solutions for the yellowing of the shielding cover.

Reasons for yellowing of the phosphor bronze shielding cover

1. Yellowing of the shielding cover after high temperature heating

During the processing of foreign white copper workpieces, high temperature heating is required (excluding foreign white copper with high temperature resistant materials), and yellowing may occur during high temperature heating. And another type of white copper containing high-temperature resistant materials, due to the special composition of the material, will not turn yellow after high temperature heating. But the price is also relatively expensive.

2. Surface oxidation causes yellowing of the shielding cover

Western white copper inherits some of the chemical properties of zinc element. If exposed to air for a long time, its surface will be oxidized by air and its color will turn yellow. Although yellowing may affect the aesthetic appearance, it has no impact on the performance of the product itself. Some people have doubts about the material, craftsmanship, and other aspects of the product due to discoloration.

In fact, the yellowing phenomenon is a common problem with all ordinary Western white copper products, which has nothing to do with the material and processing technology, and this phenomenon cannot be changed by manpower. You don't have to worry, foreign white coppershield canThe performance will change.

Solution for Cleaning Yellowing Shield of Western White Copper

After seeking solutions, we have tried using water-based cleaning agents to solve this problem. According to customer requirements, we have customized the white copper degreasing cleaning agent MS66401N without changing their existing production equipment and processes (cleaning process: ultrasonic cleaning → ultrasonic cleaning → pure water rinsing → pure water rinsing → pure water rinsing → pure water rinsing → pure water rinsing → drying).

Its surfactant adopts a unique compounding technology, which has good emulsification, separation, and permeation effects on the oil stains on the surface of the product. Due to the addition of copper protective agent, the defect rate of the product is effectively controlled during the cleaning process (below 3%). In the later high-temperature welding process, the yellow glue is also less prone to foaming, greatly reducing the defect rate and operating costs of the product, and improving production efficiency.

The above is aboutReasons for yellowing of the phosphor bronze shielding cover： http://www.bosiwj.com/mp-02.html
I hope the knowledge related to solving the yellowing of shielding covers can help everyone solve the problem. If you are interested in purchasing shielding covers, you can contact us at Dongguan Bosi Hardware. Our manufacturing process has a flatness of up to 0.02mm and an accuracy of up to 0.01mm. Please feel free to inquire for a quotation.