A spray gun powder feeding pipe
A powder feeding tube and spray gun technology, which is applied in arc spraying, liquid spraying equipment, spraying devices, etc., can solve the problems that the needle is easily burned or oxidized by high temperature, the manufacturing cost of high temperature resistant materials is high, and the high temperature resistance performance is poor. Achieve the effect of avoiding the influence of spraying quality, prolonging service life and low manufacturing cost
Active Publication Date: 2016-06-08
WUHU DINGHAN REMFR TECH
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Problems solved by technology
The traditional powder feeding pipe is made of ordinary alloy steel or high temperature resistant material in an integrated form. However, ordinary alloy steel has poor high temperature resistance, short life, and the needle is easily burned or oxidized by high temperature; it is made of high temperature resistant material High cost, difficult to popularize
Method used
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Embodiment Construction
[0013] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0014] Such as Figure 1 to Figure 4 As shown, a powder feeding pipe of a spraying gun includes a powder feeding pipe main body 5, an axial feeding hole 8 is provided in the center of the powder feeding pipe main body 5, and a feeding port 1 is provided on the lower end surface of the powder feeding pipe main body 5; The feeding port 1 is conical, and the tapered feeding port 1 increases the exposed area of the feeding port 1, which facilitates feeding. The upper part of the feeding port 1 communicates with the feeding hole 8, and the lower part of the main body 5 of the powder feeding pipe is the feeding end. When working, the powder enters from the feeding end and sprays out from the injection head 6. Since the powder passes through the powd...
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The invention relates to a long-life spray gun powder feeding tube comprising a powder feeding tube. The center of the powder feeding tube is provided with an axial feeding hole, and the lower end face of the powder feeding tube is provided with a material inlet in a conical shape; the conical material inlet increases the exposed area of the material inlet, material can be fed conveniently, the upper portion of the material port is communicated with the feeding hole, and the lower portion of the powder feeding tube is a feeding end; the lower portion of the feeding end is provided with an annular clamping groove used for fixing the feeding end, the center of the feeding end is a hexagonal prism outer surface, and the upper portion of the feeding end is provided with outer threads; the center of the powder feeding tube is a supporting rod, and the upper portion of the powder feeding tube is a spraying head; a hollow prism is embedded at the center of the spraying head. The long-life spray gun powder feeding tube adopts tungsten carbide, tungsten copper and nickel-chrome alloy steel, high temperature resistance of the powder feeding tube is improved effectively, the radiating area of the powder feeding tube is increased through the hollow prism inserted in the center of the powder feeding tube, the life of the powder feeding tube is prolonged, influences on spraying quality due to frequent power feeding tube change are avoided, and spraying efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of arc spraying processing, in particular to a powder feeding pipe of a spraying gun. Background technique [0002] Isoparticle spraying is carried out by using plasma arc, which is a compressed arc. Compared with free arc, its arc column is thinner, its current density is higher, and its gas ionization degree is higher. Therefore, it has the characteristics of high temperature, concentrated energy, and good arc stability. . However, the high temperature of the plasma arc and the characteristics of energy concentration also put forward extremely high temperature resistance requirements for the spray gun, especially the powder feeding pipeline. The traditional powder feeding pipe is made of ordinary alloy steel or high temperature resistant material, and is made in an integrated form. However, ordinary alloy steel has poor high temperature resistance, short life, and the needle is easily burned or oxidized b...
Claims
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IPC IPC(8): B05B5/06B05B5/08
CPCB05B7/226
Inventor 程敬卿
Owner WUHU DINGHAN REMFR TECH