Wideband nozzle capable of uniformly feeding powder in laser processing

A nozzle and powder feeding technology, used in laser welding equipment, metal processing equipment, spraying devices, etc., can solve the problem of difficult and uniform powder feeding from nozzles, achieve good uniformity, improve efficiency and coating performance and stiffness. Effect

Active Publication Date: 2015-04-01
HANGZHOU BOHUA LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nozzle has a simple structure, easy assembly and disassembly, and low processing cost, but it is difficult to achieve uniform powder feeding for this nozzle

Method used

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  • Wideband nozzle capable of uniformly feeding powder in laser processing
  • Wideband nozzle capable of uniformly feeding powder in laser processing
  • Wideband nozzle capable of uniformly feeding powder in laser processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 The shown broadband nozzle for uniform powder feeding for laser processing includes a rectangular nozzle 4 and an annular powder chamber 5. The rectangular nozzle 4 is provided with a rectangular powder feeding channel 7 and a protective gas channel 8. One end of the rectangular powder feeding channel 7 is The powder outlet 9 and the protective gas channel 8 are arranged in parallel on the periphery of the powder outlet 9. The other end of the rectangular powder feeding channel 7 is a powder feeding gas channel. The powder feeding gas channel includes a transition channel 2 and a circular channel 1. The transition channel 2 realizes the smooth and uniform transition from the circular channel 1 to the rectangular powder feeding channel 7; the rectangular nozzle 4 is fixedly installed in the annular powder chamber 5, and the powder outlet 9 end of the rectangular nozzle 4 and the circular channel 1 end protrude Annular powder chamber 5, powder 12 is place...

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Abstract

The invention discloses a wideband nozzle capable of uniformly feeding power in laser processing. The wideband nozzle comprises a rectangular nozzle and an annular powder cavity, the rectangular nozzle is provided with a rectangular powder feed channel and a protection gas channel, one end of the rectangular powder feed channel is a powder outlet, the protection gas channel is arranged at the periphery of the powder outlet and parallel to the powder outlet, the other end of the rectangular powder feed channel is a powder feed gas channel, the powder feed gas channel comprises a transition channel and a circular channel, the transition channel is used for realizing the smooth and uniform transition from the circular channel to the rectangular powder feed channel, the rectangular nozzle is installed and fixed in the annular powder cavity, the powder outlet end and the circular channel end of the rectangular nozzle extend out of the annular powder cavity, the powder is put in the annular powder cavity, and the gas channel is arranged in the annular powder cavity, and a powder inlet is arranged at the side of the rectangular powder feed channel of the rectangular nozzle. The nozzle disclosed by the invention can be used for greatly eliminating the phenomenon that the powder in middle is more than powder at two sides when the rectangular nozzle is used for feeding powder, the powder is capable of uniformly filling the powder outlet of the whole rectangle to realize the uniform powder feed.

Description

technical field [0001] The invention relates to a nozzle for laser processing, in particular to a nozzle used for evenly conveying wide-band powder in the laser processing process. Background technique [0002] Laser processing is an advanced remanufacturing technology that integrates optical, mechanical and electrical technologies. Because it has the advantages of non-contact processing, high hardness, high melting point materials, high processing efficiency, small thermal deformation, convenient CNC processing, high processing accuracy, good controllability, and less pollution, it has been widely used in automobiles, Metallurgy, aerospace, machinery, textiles, chemicals, microelectronics industry, artwork manufacturing, daily necessities and craft supplies manufacturing and many other fields. [0003] Laser processing can be divided into preset and synchronous laser cladding according to the way of powder feeding. However, the pre-set laser processing coating has the dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10B05B7/14B23K26/144B23K26/34
Inventor 姚建华张建锋陈智君
Owner HANGZHOU BOHUA LASER TECH
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