The advantages of vacuum coating machine carbide coating:

The advantages of vacuum coating machine carbide coating:

1) Because the coating material on the surface has extremely high hardness and wear resistance, compared with uncoated cemented carbide, coated cemented carbide allows higher cutting speeds, thereby improving processing efficiency; or Significantly improve tool durability at the same cutting speed.

2) Since the friction coefficient between the coating material and the material to be processed is small, the cutting force of the coated blade is reduced to a certain extent compared with the uncoated blade.

3) When the coated blade is processed, the quality of the processed surface is better.

4) Due to the good comprehensive performance, the coated blade has better versatility. A coated grade of blade has a wide range of applications.

The vacuum coating machine will be attached to the surface of the coated parts by pure aluminum

At this time, the formed coating may lose its luster due to the residual gas still contained in the fine aluminum particles, which will also greatly reduce the adhesion between the coating and the primer. For example, when the vacuum degree is high and the temperature of the tungsten wire is also high, the kinetic energy of evaporating aluminum will also increase, and the surface of the coated part will be pure aluminum (without residual gas), and the density is very high. And get improved  (including adhesion, etc.).

The performance of vacuum coating machine coating also changes in addition to changes

Therefore, when the tungsten wire is set as a fixed number, from the degree of vacuum to the scattering direction of evaporated aluminum, the temperature of the tungsten wire, the distance from the tungsten wire to the part to be plated, etc.; according to its coating conditions, the performance of the coating also changes in addition to changes. As mentioned above, the coating is carried out at about 10 –4 Torr. If the vacuum is too low, the aluminum in the evaporation encounters the residual gas or the gas generated when the tungsten wire is heated, and the collision occurs and cools down. Aluminum particles   (aggregate of very small aluminum particles)   will adhere to the part to be coated.

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