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Laser cladding working head adapted for cladding layer capability gradient change

A gradient change, laser cladding technology, used in laser welding equipment, manufacturing tools, metal processing equipment, etc., can solve the continuous change of continuous changes and the continuous changes of cladding properties. and other problems to achieve the effect of reducing the outflow speed

Inactive Publication Date: 2010-02-10
BEIJING UNIV OF TECH
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Problems solved by technology

[0005] In addition, if the powder output is required to change continuously, since the powder leaves the powder gas passage 19, passes through the wide powder gas separation chamber 22, and then enters the narrow powder output passage 23, the continuous change of the powder output will be caused. It does not coincide with the continuous change of the powder input amount, which causes the continuous change of the cladding layer performance to be inconsistent with the continuous change of the design performance

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  • Laser cladding working head adapted for cladding layer capability gradient change
  • Laser cladding working head adapted for cladding layer capability gradient change
  • Laser cladding working head adapted for cladding layer capability gradient change

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Embodiment Construction

[0018] The present invention is a laser cladding working head suitable for gradient changes of cladding layer performance, which is composed of two parts: powder gas separation and powder conveying. Figure 2 ~ Figure 3 The design, processing and assembly of the powder delivery part includes the upper connector 9, the powder delivery connecting pipe 10, the lower connector 11, the sealing cap 12, the protective gas input cylinder 13, the powder feeding nozzle pressure cap 14, the powder feeding nozzle 15, and the powder feeding Nozzle seat body 16, in which: the powder feeding nozzle 15 is connected with the powder feeding nozzle pressure cap 14 through the upper thread, and the powder feeding nozzle 15 and the powder feeding nozzle pressure cap 14 are installed in the powder feeding nozzle seat body 16, protecting gas input The cylinder 13 is threadedly connected to the upper part of the powder-feeding nozzle seat body 16, the cap 12 is threadedly connected to the upper part of...

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Abstract

A powder spraying nozzle for laser melting process consists of a powder-gas separating cylinder, a powder feeding mouth, a mixing head, an upper sealer, an outlet regulating ring, a powder conveying pipe, a lower connector, a protective gas feeding cylinder, a mouth cap, and a mouth seat. The feeding pipe of the powder-gas separating cylinder has diameter shrunk gradually and discharging holes radial distributed axially with alpha2 notlarger than 50 degrees between the axle and those of the discharging holes. Flowing-out rate of metal powder can be reduced after separation of metal powder fromgas carrier to make feeding-amount met demand of laser gradient melting technology.

Description

Technical field [0001] The invention relates to a laser cladding working head suitable for gradient changes in the performance of a cladding layer, which is exclusive to the field of laser cladding. Background technique [0002] The composite, multifunctional, high performance and low cost of advanced materials are important development directions of advanced materials technology. [0003] The laser gradient cladding technology can continuously change the performance of the cladding layer of the workpiece to meet the requirements of the use conditions of the workpiece for the performance of the cladding layer. The premise of continuously changing the performance of the cladding layer of the workpiece is to accurately control the transportation of one or more metal powders forming the cladding layer. Therefore, it is very important to use a laser cladding working head suitable for the transportation of a variety of powder materials. [0004] At present, the cladding head used in lase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10B23K26/34
Inventor 左铁钏武强王旭葆杨武雄肖荣诗
Owner BEIJING UNIV OF TECH
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