Multifunctional supersonic flame spraying method and its intelligent control system

A supersonic flame and multi-functional technology, applied in the direction of coating, injection device, liquid injection device, etc., can solve the problems of many control objects and complicated process

Inactive Publication Date: 2003-07-23
PLA SECOND ARTILLERY ENGINEERING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for the method of the present invention with many control objects, complex process and many monitoring parameters, it is impossible for the burner control system of the prior art to complete

Method used

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  • Multifunctional supersonic flame spraying method and its intelligent control system
  • Multifunctional supersonic flame spraying method and its intelligent control system
  • Multifunctional supersonic flame spraying method and its intelligent control system

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Embodiment Construction

[0033] The working program of the present invention is as follows: pre-spray inspection: according to the pre-spray inspection module on the console, press the corresponding switch to check the oil circuit, gas circuit and water circuit, and check whether the work of each circuit is normal. Spraying: There are two modes of operation for spraying, namely manual and automatic. In manual spraying, operate in the order of water supply, air supply, oil supply, ignition, and spraying. In automatic spraying, operate in the order of ignition and spraying. When spraying stops, operate in the reverse order of spraying.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] 1. The flying speed of particles is high, the impact kinetic energy is high, and the particle bonding is good. The sprayed coating has high bonding strength, low porosity, and dense coating.

[0036] 2. The flight time of particles in the atmosphere is short, and the oxide co...

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Abstract

A multifunctional supersonic flame spraying method features use of high-pressure combustion, jet atomizing, spark plug ignition, radial pneumatic powder feeding in negative pressure region at back end of Laval nozzle, and refrigerating system water cooling. Its intelligent control system is composed of 5 subsystems. This invention is formed into a complete set with flame spraying gun. Its advantages include high quality of coated layer, high adhesion, low porosity and high hardness and antiwear performance.

Description

technical field [0001] The invention belongs to the technical field of thermal spraying, and relates to a multifunctional supersonic flame spraying method and an intelligent control system. Background technique [0002] Hypersonic flame spraying (HVOF) is a thermal spraying method developed in the 1980s. Since its development, due to its excellent coating performance, it has been widely used in industry, especially in aviation, aerospace and Other fields that require higher coating performance. In recent years, supersonic flame spraying has developed rapidly and has become one of the most dynamic spraying methods in thermal spraying. In the prior art prior to the present invention, there are various supersonic flame spraying methods, and have gone through three stages of development. The first-generation HVOF spraying method is represented by "Jet-Kote", using propane, propylene or hydrogen as fuel gas, oxygen as a combustion aid, handle-type combustion chamber, axial powd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B7/14B05B7/20B05B17/06B05C19/00
Inventor 王汉功查柏林汪刘应杨晖苏勋家
Owner PLA SECOND ARTILLERY ENGINEERING UNIVERSITY
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