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Technique for film plating on powder surface and equipment thereof

A powder and equipment technology, applied in the field of vacuum coating process and its equipment, can solve the problems of increasing manufacturing cost, complicated equipment structure, increasing equipment operating cost, etc., and achieve the effect of increasing friction

Inactive Publication Date: 2007-12-05
BYD CO LTD
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  • Application Information

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Problems solved by technology

However, due to design limitations, this solution has the following disadvantages: a single processing volume is small, and equipment operation costs are high, so that its application can only be limited to scientific research and laboratory needs, and cannot achieve industrialization
[0006] It is mentioned in the patent JP62250172 that the gravity of the powder is used to drop from the top of the equipment and pass through an annular sputtering target to implement sputtering deposition. The time to receive sputtering deposition is very short, and multiple sputterings are required, which increases the operating cost of the equipment. In addition, the equipment has a complex structure and a large volume, which increases the manufacturing cost

Method used

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  • Technique for film plating on powder surface and equipment thereof
  • Technique for film plating on powder surface and equipment thereof

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Embodiment Construction

[0027] The present invention is a process for coating the surface of powder, which mainly includes:

[0028] (1) provide a vacuum environment;

[0029] (2) Let the powder fall in a vacuum environment, and in the process of falling, use a vacuum coating source to coat the surface of the powder;

[0030] (3) The powder performs a spiral motion during the falling process in the above-mentioned vacuum environment, and at the same time, it also turns over, so that a relatively uniform coating is formed on the surface of the powder;

[0031] (4) The above-mentioned vacuum environment is provided with a rotating inverted cone hopper. The vacuum coating source is located in the center of the inverted cone hopper. The powder falls along the wall of the rotating inverted cone hopper. The rotating inverted cone The rotation speed of the type hopper is controlled by the drive motor, which in turn controls the coating thickness obtained on the powder surface.

[0032] The present inventi...

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Abstract

The present invention is powder surface coating process and apparatus. During coating powder, the powder is made to fall spirally in a vacuum environment and a homogeneous cladding is formed on the surface of the powder. The apparatus for coating powder includes one vacuum chamber, a vacuum film coating source, and a vacuumizing system. Inside the vacuum chamber, there are one turned conic rotary hopper, one feeding chamber connected to the upper end of the hopper, and collecting chamber connected to its lower end. The vacuum film coating source mounted in the middle part inside the hopper has one speed adjustable motor for rotating the hopper. The present invention has great coating capacity and low running cost.

Description

technical field [0001] The invention relates to a vacuum coating process and equipment thereof, in particular to a process and equipment for coating a powder surface. Background technique [0002] With the continuous improvement of the level of science and technology and the continuous development of new products, people's requirements for the material properties of products are also correspondingly improved. The surface modification technology of materials is to change the characteristics of the material surface through certain methods or processes without changing the physical and chemical properties of the material matrix itself, so as to change the appearance, surface strength or surface morphology of the material, so that The material has functions that the material does not have originally, which expands the application field of the material itself. Among them, surface coating technology is the most widely used material surface modification technology. [0003] Surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/24C23C14/34
Inventor 颜海鹏焦天宇
Owner BYD CO LTD
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