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Characteristics of the plating process

Characteristics of the plating process

The current efficiency is very low, generally 13 ~ 16%, only about 23%, so a large amount of hydrogen is precipitated in the chromium plating process, bringing out venom mist, which requires a good suction device and the use of chromium mist inhibitor.

2024/01/08

Factors affecting the surface roughness of the workpiece surface after chromium plating

Factors affecting the surface roughness of the workpiece surface after chromium plating

The surface roughness of the workpiece surface after chromium plating has a direct relationship with the following conditions: 1. The surface roughness of the substrate before plating: the smaller the surface roughness value of the substrate, the smaller the surface roughness value after plating;

2024/01/08

Plating knowledge (III)

Plating knowledge (III)

Protective decorative chrome plating: protective decorative chrome plating is commonly known as decorative chrome, thin coating, bright and beautiful, usually as the outer layer of multi-layer plating, in order to achieve the purpose of protection, in zinc-based or steel substrate must first be plated with a thick enough intermediate layer, and then in the bright intermediate layer plated with 0.25 ~ 0.5μm thin layer of chromium.

2024/01/08

Chrome plating, a process that makes metal shiny!

Chrome plating, a process that makes metal shiny!

Chrome plating is a process of plating a thin layer of chromium on metal. Chrome plating has two main functions, for decoration or as a protective layer.

2024/01/08

Chrome plating knowledge (II)

Chrome plating knowledge (II)

Low toxicity, easy wastewater treatment. It is reported that the toxicity of trivalent chromium is only 1/100 of that of hexavalent chromium, and hexavalent chromium acid mist is not generated during the electroplating process. The concentration of the plating solution is low, only about 1/7 of the hexavalent chromium plating solution, so the amount of the plating solution is small and the waste water treatment is easy.

2024/01/08

Chrome plating knowledge (I)

Chrome plating knowledge (I)

Hexavalent chromium has high toxicity and serious environmental pollution. Chromic anhydride is widely used in chromium plating solution, which is the main pollution source of chromium-containing wastewater in electroplating industry. This problem has aroused widespread concern, and countries have also strengthened legislative management. For example, the emission standard for hexavalent chromium in the United States has been reduced from 0.05mg/L to 0.01mg/L, and has been implemented since 1997. Low current efficiency and poor covering ability of the hexavalent chromium plating bath are also a problem. In order to fundamentally reduce pollution and improve current efficiency and coverage, trivalent chromium plating process is more and more popular.

2024/01/08

Will chrome rust?

Will chrome rust?

The chromium coating does have an anti-rust effect to a certain extent, but its anti-rust performance is relatively slow. In contrast, the anti-rust performance of galvanized (especially the galvanized layer after passivation treatment) is more superior, so it has been widely used in many engineering projects, such as outdoor transmission towers, highway guardrails, auto parts and metal parts such as daily hardware.

2023/12/21

What is the role of chrome plating?

What is the role of chrome plating?

Chrome plating plays an important role in automobile manufacturing. It can significantly enhance the color of the car, making the appearance of the vehicle more bright and eye-catching. This surface treatment can not only improve the aesthetics of the car, but also improve the strength and hardness of the vehicle, thereby increasing its wear resistance. This also means that the surface of the car can be maintained in good condition after long-term use and various climatic conditions.

2023/12/21

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