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Detonation gun spraying device and detonation gun spraying technology

A technology of explosive spraying and explosive wave, which is applied in the direction of metal material coating process, coating, molten spraying, etc., can solve the problems of restricting the scope of application of explosive spraying, high noise, etc., and achieve the simplification of explosive spraying equipment and ancillary facilities, safety High performance and wide application range

Pending Publication Date: 2018-08-10
王东曦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, with the continuous improvement and research of thermal spraying technology, detonation spraying has developed rapidly, but it is still the most cumbersome and cumbersome process among various thermal spraying processes, such as: in the prior art, detonation spraying device The noise (about 140 decibels) is the largest, and it must be operated in a soundproof room; secondly, due to the use of various compressed gases (oxygen, acetylene or other gas and protective gas, etc.) and powder materials, the soundproof room requires a large enough space, Strong ventilation system and noise reduction system ensure safety; during the spraying process, the spray gun must also be forced to circulate water cooling; due to these disadvantages, the scope of application of explosive spraying is seriously restricted

Method used

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  • Detonation gun spraying device and detonation gun spraying technology
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  • Detonation gun spraying device and detonation gun spraying technology

Examples

Experimental program
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Effect test

Embodiment 1

[0053] A kind of detonation spraying device is provided among the present embodiment, comprises launching unit 30, spray pipe 8 and projectile body 5, as figure 1 As shown, wherein, the nozzle 8 is a hollow tube, and one end of the nozzle 8 is the body chamber 6, and the body chamber 6 is used to accommodate the body 5, and the nozzle 8 is connected with a powder supply unit 31; the powder supply unit 31 For conveying the spraying powder 13 in the spray pipe 8, the launching unit 30 is connected on the projectile chamber 6, and the launching unit 30 is used to detonate the projectile 5 in the projectile chamber 6, and the explosion wave generated by the projectile 5 explosion is generated in the spray pipe. 8 , heat the spray powder 13 and push the spray powder 13 toward the workpiece 9 to form a coating 14 .

[0054] The projectile 5 in the explosive spraying device can be a solid propellant, a nail-shooting projectile, or a bullet after the warhead has been removed and seale...

Embodiment 2

[0065] The main difference between this embodiment 2 and the above-mentioned embodiment 1 is that in this embodiment, a specific structure of a launching unit 30 suitable for the above-mentioned explosive spraying device is provided, such as Figure 4 As shown, in this embodiment, the launching unit 30 includes a firing device, a recoil device and an extracting device 11, wherein,

[0066] The recoil device comprises recoil spring 3, recoil device 4, guide pipe 10, and guide pipe 10 is a hollow circular tube, and the two ends of guide pipe 10 are respectively connected firing device and the projectile chamber 6 of nozzle pipe 8, recoil spring 3 and the recoiler 4 are respectively arranged in the guide tube 10, and the two ends of the recoil spring 3 are respectively connected with the firing device and the recoiler 4, and the recoiler 4 is provided with a through hole along the axial direction of the guide tube 10, and the recoiler The outer diameter of the device 4 is smaller t...

Embodiment 3

[0078] The main difference between this embodiment 3 and the above-mentioned embodiment 2 is that in this embodiment, the explosive spraying device also includes a projectile 5 supply unit, and the projectile 5 supply unit is connected to the launch unit 30, and several The projectiles 5 can also send the projectiles 5 into the launching unit 30 one by one. A plurality of projectile bodies 5 can be stored in the projectile body 5 supply unit, and one projectile body 5 can carry out explosive spraying, and the projectile body 5 supply unit can send projectile bodies 5 into the launching unit 30 one by one; At the same time, it is convenient for continuous spraying, which can effectively improve the spraying efficiency.

[0079] Such as Figure 16 As shown, in this embodiment, the projectile body 5 supply unit includes a magazine 20, the magazine 20 is used to store the projectile 5, and the magazine 20 is provided with a delivery spring 21, and the magazine 20 is connected to ...

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Abstract

The invention relates to a detonation gun spraying device and a detonation gun spraying technology. The detonation gun spraying device comprises a launching unit, a jet pipe and a projectile body; thejet pipe is connected to the launching unit; a power supply unit is connected to the jet pipe and is used for conveying spraying powder into the jet pipe; the launching unit is used for detonating the projectile body; and a blast wave generated by detonation of the projectile body pushes and heats the spraying powder to jet toward a workpiece to form a coating in the jet pipe. The detonation gunspraying device provided by the invention is simple in structure, can utilize detonation of a solid propellant or a propellant in a powder load or a bullet to push and heat a powder material, replacesthe traditional technological device for pushing and heating the powder material with detonation of hybrid gas, is more light, handy and portable and can realize filed construction operation to ultra-large type parts. The detonation gun spraying technology provided by the invention does not involve combustible gas and detonation gas, is high in safety, is suitable for spraying technological needsfor various heat spraying powders and realizes accurate control on the detonation gun spraying process.

Description

technical field [0001] The invention relates to the technical field of thermal spraying, in particular to an explosive spraying device and an explosive spraying process. Background technique [0002] Explosive spraying is to mix gas and oxygen (or air) into a seamless steel pipe with one end closed, and the mixed gas is ignited by the spark plug to explode to generate high-speed and high-temperature airflow, which accelerates the thermal acceleration of the sprayed powder, so that the powder particles bombard at a higher temperature and speed The process of forming a coating on the surface of parts (workpieces). This process is a patented technology developed by the Linde Branch of Union Carbide Corporation in the 1950s. It is mainly used to prepare wear-resistant and high-temperature resistant coatings for aero-engines. [0003] Compared with other spraying processes, the explosive spraying process has outstanding advantages such as high coating bonding strength, low porosi...

Claims

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Application Information

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IPC IPC(8): C23C4/126
CPCC23C4/126
Inventor 王东曦
Owner 王东曦
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