Branch Snyder Department of International Ltd. Shenzhen-Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 layer multilayer professional providers, to provide customers with high-precision, high quality gold-plated circuit boards Shenzhen circuit board, gold-plated circuit board production quality assurance processes, the price is reasonable. General requirements for the relatively high board, flatness better than gold-plated circuit boards metal thickness, generally on the use of Immersion Gold, Immersion Gold generally does not appear the phenomenon of black mat after assembly. Shen gold plate flatness and inactive life with gold plating as well. Immersion Gold is relatively gilded crystal structure is more compact, easy to produce an oxide. Chlorine and sodium hydroxide can be used to maintain control of the production of PH value, both in terms of automatic tonic little difference, but in the manual tonic should be of particular concern. When ammonia is added, it can be observed blue ammonia complex of nickel ion appears blue when then diffusion disappeared, indicating ammonia to nickel is good for PH adjusting agent. When adding sodium hydroxide solution, the bath immediately appear white powder precipitated nickel hydroxide precipitation, along with syrup spread, white powder slowly dissolved in the acidic environment of the bath. Therefore, when using sodium hydroxide solution is used as a chemical plating PH adjusting agent, formulated concentration can not be too high, dosing should be added slowly. Otherwise it will produce flocculent powder, when not fully completed before the dissolution process, flocculent powder will be deposited nickel bath filter must be clean and only after the re-start production. Newell record (Figure) _ gilded gold-plated circuit board circuit board stability _ Shenzhen by the Shenzhen Municipal Newell Electronic Technology Limited. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) adhere to the "people-oriented" business philosophy, with a professional staff, and strive to provide the best products and services to contribute to the community, and welcome new and old customers throughout the visit, sincere cooperation for a better future. Newell create - your trusted friend, Company Address: Bao'an District of Shenzhen City forward Road Newell Innovation Center B507, Contact: Huang Shengxing.