Electroplating Terminology 3 Plating method Terminology 3.1 Chemical passivation Processes articles in a solution containing an oxidizing agent to form a thin passivation protective film on the surface.
3.2 Chemical oxidation The process of forming an oxide film on a metal surface by c…

Gate valve opening and closing pieces is the gate, the direction of movement of the gate and fluid perpendicular to the gate valve can only be fully open and closed, not suitable for regulation and throttling. The gate has two sealing surfaces. The two most commonly used wedge gate valves form …

Anti-corrosion valve is mainly used in milk, pharmaceutical, acid and other corrosive special liquid circulation. Usually such valve spool are used fluoride, glass, rubber, ceramic and other anti-corrosion materials. Different inserts for different corrosive liquids.

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1. Be sensitive when the door lock card or sensor key card is used. It is necessary to repeat the continuous card insertion or the induction key card to operate normally after opening the door. There should be no "no reaction" or "error" and "motor rotation" ph…

How can I use theft

The first part, burglar alarm

Analyze the role of various anti-theft products in the case of a large number of stolen cars:
U-lock: The most popular type on th…

At present, the amount of organic fertilizer input in the southern orangery is insufficient, the acidification of the soil is serious, the amount of fertilizer used by farmers is quite different, the proportion of fertilization and the period of distribution are unreasonable, and the probl…

[China Aluminum Industry Network] In the electrolytic capacitor family, aluminum electrolytic capacitors have been widely used in the world for the past 20 years due to their high performance, low price, and wide range of uses. In Japan alone, for example, in 1995, the output of aluminum fo…

In the home furnishing industry, furniture is one of the industries that rely heavily on resources. The resource conservation of the furniture industry is of great significance to the development of a conservation-oriented economy for the entire home furnishing industry. In fact, the resource …

Zhang Guobao, director of the National Energy Administration, said today (9th) at the National Coal Work Conference that by 2015, China will form a large coal enterprise of 10 billion tons and 10 50 million tons; More than 75%.

Zhang Guobao said that although China's coal indust…

1. The heart-shaped processing process: the workpiece is clamped by the clamp, the material moves forward, and the tool does not move, and the part is processed by the linear motion or the rocking motion of the cutter.

2. The cutting process: the workpiece is clamped by a simple cla…

According to the report of BOC International, as the world's largest consumer of machine Tools, the …