Key points of strip steel coating technology using vacuum equipment

With the urgent requirements of the steel industry for performance and function, the coating of strip steel has become an important part of the surface treatment of strip steel. With the vacuum coating technology and the innovative development of materials, the coating of strip steel by vacuum equipment has a huge Development prospects, in terms of current electron beam strip vacuum coating technology, it has many advantages:

vacuum coating machine,pvd coating machine,pvd vacuum machine,vacuum ion coating machine,multi-arc ion coating machine

2. The environmental pollution of vacuum coating is small, and the environmental pollution is reduced by countless grades compared with traditional water plating. Vacuum coating is a dry coating technology, and the generation of harmful gases and liquids is very small.

3. Vacuum coating is used for vacuum coating. The strip has good quality, high purity, uniform thickness and strong adhesion (adhesion is very important for coating, adhesion is easy to fall off), vacuum The coating can be stamped at one time or even rolled into a tube of small diameter without falling off.

vacuum coating machine,pvd coating machine,pvd vacuum machine,vacuum ion coating machine,multi-arc ion coating machine

4. Strip steel vacuum coating can choose a lot of materials and is not limited by the melting point of the material. Using electron beam technology, the temperature of the film can reach 3000 degrees Celsius to 6000 degrees Celsius in a very short time. Almost all metal materials can be steamed. plating.

5. The strip vacuum coating process is flexible, and can realize single-sided, multi-faceted, single-layer and multi-layer plating according to the requirements of the product. With the notification and stable high-power evaporation source, the efficiency of strip vacuum coating will be greatly improved. cut costs.

vacuum coating machine,pvd coating machine,pvd vacuum machine,vacuum ion coating machine,multi-arc ion coating machine

The key technology of coating steel strips with vacuum equipment is to develop and use high-power electron guns. To meet the requirements of continuous industrial strip coating production, it must have an evaporation source with high heating speed and high melting temperature. The high-power electron gun is the ideal evaporation source for the continuous vacuum coating process of strip steel using vacuum equipment. Today, many vacuum evaporation coating equipment is relatively simple and cannot meet the needs of high-efficiency production.

The key high-power electron gun of strip vacuum coating technology needs to have the following characteristics:

vacuum coating machine,pvd coating machine,pvd vacuum machine,vacuum ion coating machine,multi-arc ion coating machine

1. The conversion rate of electron beam energy should reach 80% or more.

2. The parameters such as beam spot diameter, electric power, scanning trajectory, frequency, and beam voltage when using the electron gun need to be easily adjusted.

3. The electron beam emitted by the electron gun reaches a very high energy density after focusing, and the bombardment temperature of the film material is above 3000 degrees Celsius.

4. The electron gun can clean and activate the strip and vacuum preheat the strip. This preheating is necessary for strip coating and adhesion enhancement.

5. The surface of the electron beam impinging on the film does not cause the infiltration of other materials.