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Special cobalt-based cermet alloy powder for laser cladding of grinding head

A technology of laser cladding and ceramic alloy, which is applied in the field of alloy powder, can solve the problem of high cost and achieve the effect of improving wear resistance

Inactive Publication Date: 2013-09-18
张家港和昊管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, the overall material of the grinding head is made of cemented carbide with high mechanical properties, and the cost is relatively high. If the metal alloy powder specially used for laser cladding of the grinding head can be provided, then laser cladding can be used to improve the mechanical properties of the grinding head. High performance while reducing the cost of the grinding head

Method used

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  • Special cobalt-based cermet alloy powder for laser cladding of grinding head

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Embodiment 1

[0019] Fully mix 130g tungsten carbide, 2g carbon, 20g calcium fluoride, 20g silicon nitride, 6g silicon, 60g iron, 90g molybdenum, 12g manganese, 170g chromium, 490g cobalt to obtain 100-200 mesh cobalt-based cermet alloy powder .

Embodiment 2

[0021] Fully mix 150g tungsten carbide, 4g carbon, 40g calcium fluoride, 40g silicon nitride, 10g silicon, 90g iron, 120g molybdenum, 16g manganese, 200g chromium, and 330g cobalt to obtain 100-200 mesh cobalt-based cermet alloy powder.

Embodiment 3

[0023] Fully mix 140g tungsten carbide, 3g carbon, 30g calcium fluoride, 30g silicon nitride, 8g silicon, 80g iron, 110g molybdenum, 15g manganese, 180g chromium, 404g cobalt to obtain 100-200 mesh cobalt-based cermet alloy powder .

[0024] The mixed metal alloy powder in this embodiment 3 is evenly ejected from the powder injection hole of the laser head, the powder feeding direction of the metal ceramic alloy powder is coaxial with the laser beam, the laser wavelength of the laser is 1.06 μm, and the output power is 4000W. The running speed is 2m / min, and the single track width is 2mm. The grinding head obtained by laser cladding is mechanically inspected to obtain the following data: (the distance in the table below is based on the bottom surface of the cladding layer as the base plane, positive above the base plane, and negative below the base plane)

[0025]

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Abstract

The invention discloses special cobalt-based cermet alloy powder for the laser cladding of a grinding head. The cobalt-based cermet alloy powder contains the following ingredients in percentage by weight: 13-15% of wolfram carbide, 0.2-0.4% of carbon, 2-4% of calcium fluoride, 2-4% of silicon nitride, 0.6-1% of silicon, 6-9% of ferrum, 9-12% of molybdenum, 1.2-1.6% of manganese, 17-20% of chromium and the balance of cobalt. The cobalt-based cermet alloy powder is special for the laser cladding of the grinding head and is used for improving the compactness of the metal structure of the grinding head and reducing the defects of pores, cracks and shrinkage voids of cladding, and the cost is reduced while the wear resistance, hardness, heat resistance and strength of the grinding head are improved.

Description

technical field [0001] The invention relates to an alloy powder, in particular to a cobalt-based cermet alloy powder specially used for laser cladding of grinding heads. Background technique [0002] Laser has the characteristics of high brightness, high directionality, high monochromaticity and high coherence, and is now being used in more and more fields. Laser cladding is one of the surface treatment technologies. In a nutshell, the principle of laser cladding is to use high-energy laser beams to irradiate the surface of metal materials, the surface of the substrate is melted rapidly, the liquid metal forms a small-scale molten pool, and new powder materials are filled at the same time. , the original metal material is mixed with the added powder to form a new layer of liquid metal. After the laser beam passes through, the liquid metal layer is rapidly cooled to form a solid cladding layer on the metal surface. Grinding head is a general term for a small grinding tool w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C32/00
Inventor 柳岸敏张翀昊肖彩梅顾斌杨健朱小虎
Owner 张家港和昊管理咨询有限公司
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