Why do the white brass shield yellow

The copper shield in the use of a process, appear yellow phenomenon. What are the main reasons that cause yellow? The reason is yellow after high temperature heat shields. The copper workpiece machining process requires high temperature heating ( Does not contain the high temperature resistant material the copper) Will appear yellow, in the high temperature heating. While another ocean cupronickel containing high temperature resistant materials due to the particularity of material composition, after the high temperature heating will not yellow. But the price is relatively more expensive. Surface oxidation cause yellowing of shielded enclosure. The copper in the tradition of zinc part of chemical properties, if long-term exposure in the air, the surface will be air oxidation, the color become yellow. Although the yellow will affect the appearance of beauty, but do not have any impact on the performance of the product itself. Some people because discoloration phenomenon and question on the material of product, process, etc. In fact, yellowing phenomenon is all ordinary ocean cupronickel products have problems, has nothing to do with material and processing technology, and this phenomenon is human cannot change. Don't have to worry about, the copper shield performance will be. Precision contact: wish you a prosperous business, everything goes well, if you want to learn more dynamic, can scan the qr code, pay attention to the public. , is committed to precision stamping processing factory of the world's most professional electronic components