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Coaxial powder-feeding mouth for inner wall laser metling covering and alloying treatment of hold pieces

A laser cladding and alloying technology, applied in laser welding equipment, molten spraying, metal processing equipment, etc., can solve problems such as unsatisfactory cooling effect, difficult to circulate cooling, short circuit of cooling water, etc., and achieve good cooling effect, Excellent cooling effect and the effect of eliminating dead angle

Inactive Publication Date: 2002-10-02
青岛启源泉能源设备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the current domestic and foreign reports, the powder feeding nozzles of the coaxial powder feeding method are basically cooled by indirect cooling; moreover, the cooling water enters from one side of the powder feeding nozzle and flows out from the other side. There is a dead angle, it is difficult to achieve complete circulation cooling
Therefore, the cooling effect is not ideal

Method used

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  • Coaxial powder-feeding mouth for inner wall laser metling covering and alloying treatment of hold pieces
  • Coaxial powder-feeding mouth for inner wall laser metling covering and alloying treatment of hold pieces
  • Coaxial powder-feeding mouth for inner wall laser metling covering and alloying treatment of hold pieces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1. A coaxial powder feeding nozzle for laser cladding and alloying of the inner wall of hole parts. It consists of laser channels, U-shaped clamps, outer rings, cone rings, cone sleeves, internal and external cooling water channels, and powder feeding channels. The laser channel is composed of a light guide tube, a cooling jacket, a reflector and an inner cone. The inner cooling water channel is composed of a water inlet pipe, a water inlet, an outlet pipe, an outlet, an inner annular water channel and a partition. The powder feeding channel is composed of a powder feeding pipe, an annular mixing chamber and a tapered ring groove. There are 4 powder feeding pipes and they are evenly distributed along the radial direction. The outer cooling water channel is composed of a water inlet pipe, a water outlet pipe, an outer annular water channel and a partition. The ends of the inner cone, the cone ring and the cone sleeve together form a spherical structure.

Embodiment 2

[0027] Example 2. A coaxial powder feeding nozzle for laser cladding and alloying of the inner wall of hole parts. It consists of laser channels, U-shaped clamps, outer rings, cone rings, cone sleeves, internal and external cooling water channels, and powder feeding channels. The laser channel is composed of a light guide tube, a cooling jacket, a reflector and an inner cone. The inner cooling water channel is composed of a water inlet pipe, a water inlet, an outlet pipe, an outlet, an inner annular water channel and a partition. The powder feeding channel is composed of a powder feeding pipe, an annular mixing chamber and a tapered ring groove. There are 2 powder feeding pipes and they are evenly distributed along the radial direction. The outer cooling water channel is composed of a water inlet pipe, a water outlet pipe, an outer annular water channel and a partition. The ends of the inner cone, the cone ring and the cone sleeve together form a spherical structure.

Embodiment 3

[0028] Example 3. A coaxial powder feeding nozzle for laser cladding and alloying of the inner wall of hole parts. It consists of laser channels, U-shaped clamps, outer rings, cone rings, cone sleeves, internal and external cooling water channels, and powder feeding channels. The laser channel is composed of a light guide tube, a cooling jacket, a reflector and an inner cone. The inner cooling water channel is composed of a water inlet pipe, a water inlet, an outlet pipe, an outlet, an inner annular water channel and a partition. The powder feeding channel is composed of a powder feeding pipe, an annular mixing chamber and a tapered ring groove. There are 8 powder feeding pipes and they are evenly distributed along the radial direction. The outer cooling water channel is composed of a water inlet pipe, a water outlet pipe, an outer annular water channel and a partition. The ends of the inner cone, the cone ring and the cone sleeve together form a spherical structure.

[0...

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Abstract

The coaxial power-feeding nozzle, belonging to the field of laser processing equipment technology, is formed from laser channel, U-shaped fastener, outer ring, cone ring, cone cover, internal coolingwater channel, external cuoling water channel and powder feeding channel, in which the laser channel is formed from light guide tube, cooling cover, reflector and internal cone body, and its internalcooling water channel is formed from water intake pipe, water intake channel, water discharge pipe, water discharge channel, internal ring water channel and its partion, board, its powder-feeding channel is composed of power-feeding pipe, ring mixing cavity and conical ring groove, it has 2-8 powder-feeding pipes which are distributed along the radial direction, and its external cooling water channel is formed from water-intake pipe, water outlet pipe, external ring water channel and its partion board.

Description

technical field [0001] The invention belongs to the technical field of laser processing equipment, and more specifically relates to a structural design of a coaxial powder feeding nozzle for laser cladding and alloying of the inner wall of hole parts. Background technique [0002] When performing laser cladding and alloying on the surface of hole parts, the alloy powder needs to be sent into the laser molten pool. At present, the powder feeding methods used in laser cladding include powder coating method, lateral powder feeding method and coaxial powder feeding method. The powder coating method is to pre-coat the alloy powder mixed with the binder on the surface of the workpiece, and then melt it with a laser. Because the binder burns and volatilizes when the powder coating is melted, it will produce defects such as pores, so it is rarely used in practice. The lateral powder feeding method is easy to cause anisotropy, and the powder utilization ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B7/14B23K26/14B23K26/70C23C24/10
Inventor 李鲁伯
Owner 青岛启源泉能源设备有限责任公司
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