Application

With the rapid development of the field of electronic design, the application of printed boards is widely used in people’s lives, and the application range of gold plating is also expanding and the requirements are getting higher and higher. The electroplating master will be troubled by various failures during the gold plating process of the…

After chrome plating, the parts are rinsed with cold and hot water, and treated with 10% sodium carbonate solution to remove the remaining The chromic acid is neutralized, then rinsed, dried, and polished on the felt wheel with chromium oxide polishing paste. Dehydrogenation heating method ①The thin-walled products with high hardness are heated in an…

01 Cause of failure The picker in the workshop took the nitric acid by mistake to the place where the potassium chloride hangs the galvanizing line to adjust the pH value. When the team process manager used hydrochloric acid to adjust the pH value, he did not look at the label carefully and mistakenly added…

In the acid potassium chloride zinc plating process, the maintenance and adjustment of the pH of the plating solution is an important link. It is ideal to control the pH between 5 and 6. Too high or too low will adversely affect production. When the pH is <5, the surface of the coating is foggy,…

The preparation method of the electroplating solution, the order of adding the complexing agent and main salt, the problems that should be paid attention to when preparing the electroplating solution, and the maintenance and management of the electroplating solution. Because the composition of the electroplating solution required for different types of coatings is different, the…

The acidic tin-zinc alloy plating bath contains stannous sulfate, zinc sulfate, citric acid, ammonium sulfate and brightener, etc. It is generally used to prepare steel, copper and zinc-aluminum alloy die-casting Protective coating of parts. Two analytical methods for zinc sulfate in the plating bath are introduced in the commonly used reference books: Method 1: Use…

Silver plating process is widely used in electronics, military industry, musical instruments and jewelry industries. The content of silver in the plating solution has a great influence on the quality of the coating. The commonly used silver content determination methods have serious environmental pollution. Potassium. The surrounding environment of some laboratories does not allow the…

01 Foreword In barrel plating production, it is always hoped that the plating time is as short as possible. Trying to reduce the influence of the mixing cycle of parts is one of the ways to achieve this goal. Factors such as driving cycle time and process development also affect the increase in production capacity.…

Foreword After our company rolled galvanized the newly developed 45UH magnetic material, there were many macroscopic pits, roughness, and serious missing corners on the surface of the coating. Can not meet customer requirements. For this reason, all processes were checked and analyzed, and the fault was eliminated. Process and product requirements 01. Product brand and…