Chromium-free Passivation Technology

Views:727 Author:Site Editor Publish Time:2023-04-13 18:20:45 Orgin:Site

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Chromium-free Passivation Technology is a passivation technology that uses chromium-free compounds instead of traditional hexavalent chromium compounds to protect the metal surface and prevent surface corrosion. With the increasing requirements for environmental protection, chromium-free passivation technology has attracted more and more attention and application.

Although the traditional hexavalent chromium passivation treatment has a good treatment effect, the chemical substances used in it are harmful to the environment and health, and the cost is high. In many countries such as Europe, the use of hexavalent chromium has been banned. Chromium passivation treatment method. In comparison, chromium-free passivation technology can not only play a role in reducing pollution and protecting the environment, but also effectively improve production efficiency and cost-effectiveness.

Chromium-free passivation technology has the following advantages:

1. Environmental protection: The manufacturing industry has higher and higher requirements for environmental protection, which has become an important factor restricting its development. Chromium-free passivation technology uses a small amount of chemical substances, less environmental pollution, and complies with the environmental protection regulations of many countries.

2. Cost: Traditional hexavalent chromium passivation treatment has high cost and takes a long time, while chromium-free passivation technology can complete the treatment in a short time and requires less chemical substances, so it can reduce production costs .

3. Effect: The effect of crystal phase and passivation film is good. The chromium-free material can achieve more than 400 hours of salt spray corrosion resistance, high strength and corrosion resistance, and can protect the treated metal surface to produce a stable protective film mainly composed of oxides.

4. Easy to operate: The chromium-free passivation technology is easy to operate, fast in processing time, does not affect the physical and mechanical properties of the metal, does not require special equipment, does not require special understanding of the environment or laboratory operations, and can be used in ordinary in a factory environment.

At present, chromium-free passivation technology has been widely used in industries such as automobiles, electronics, home appliances, and machining. Chromium-free passivation technology can replace a certain proportion of hexavalent chromium passivation technology, which reduces the risks of the environment and workers, and brings significant economic and social benefits. In the future, with the increasing awareness of environmental protection, chromium-free passivation technology will be more widely used.