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Powder flame-thrower nozzle

A powder flame and spray gun technology, which is applied in the field of powder flame spray gun nozzles, can solve the problems of low powder feeding rate of spraying powder, and achieve the effects of increasing powder feeding rate, promoting complete combustion, and reducing divergence

Active Publication Date: 2010-04-14
ANTON OILFIELD SERVICES (GRP) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cross-sectional shape of the powder feeding hole 5 is circular, in the actual spraying operation, when the workpiece is a thin rod, part of the spraying powder in the divergent spraying powder in the shape of a cone will fall into the air and be lost. Powder rate is low

Method used

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  • Powder flame-thrower nozzle
  • Powder flame-thrower nozzle
  • Powder flame-thrower nozzle

Examples

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Embodiment Construction

[0017] Such as figure 1 , figure 2 , image 3 As shown, a powder flame spray gun nozzle of the present invention includes an inner core 1 and an outer jacket 2 made of red copper, a mixing chamber 3 is formed between the inner core 1 and the outer jacket 2, and the left end of the inner core 1 is provided with several Evenly distributed air intake holes 6 are characterized in that the center of the inner core 1 has a powder feeding hole 5, and the cross section of the powder feeding hole 5 is composed of two symmetrical convex arcs 7, 8 and two symmetrical concave arcs 9 , 10 are smoothly connected, and the convex arcs 7, 8 are tangent to the concave arcs 9, 10, the radius of the convex arcs 7, 8 is less than the radius of the concave arcs 9, 10; the right end of the coat 2 is provided with a surrounding powder feeding Several air outlet holes 4 of the hole 5, two lines formed by the connection line between the center of any air outlet hole 4 and the center of the powder f...

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Abstract

The invention relates to a powder flame spray gun nozzle, comprising an inner core and an outer casing made of red copper; a mix cavity is arranged between the inner core and the outer casing; a plurality of gas inlets are evenly distributed along the circumferential direction at the left end of the inner core; a power-feeding hole is arranged in the center of the inner core, the cross section ofthe power-feeding hole is formed by smoothly connecting the two symmetric convex arcs and two symmetric concave arcs, and the convex arc and the concave arc are tangent and the radius of the convex arcis smaller than that of the concave arc; a plurality of gas outlets that surround the power-feeding hole are arranged at the right end of the outer casing; and the connecting line of the centers ofan y gas outlets and the power-feeding hole and the connecting line of the center of two adjacent gas outlets and the center of the powder-feeding hole form two equal angles. The invention is the powder flame spray gun nozzle applicable to the spraying of the work pieces of slender rods, which sprays the powder on the cross section distributed approximately in the strip shape in the space. The efficiency of the overlay powder is enhanced and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a powder flame spray gun nozzle. Background technique [0002] Powder flame spraying is a thermal spraying method that uses an oxy-acetylene flame as a heat source, and the spraying material is powder. The equipment is simple and there are many types of spraying materials. It is the most widely used thermal spraying process. The nozzles used in oxy-acetylene powder flame spraying guns are as follows: Figure 4 , Figure 5 , Figure 6 As shown, it includes an inner core 1 and a jacket 2, a mixing chamber 3 is formed between the inner core 1 and the jacket 2, the center of the inner core 1 has a circular powder feeding hole 5, and the right end of the jacket 2 is provided with several powder feeding holes 5 The air outlet holes 4 are evenly distributed along the circumferential direction, and the left end of the inner core 1 is provided with several air inlet holes 6 evenly distributed along the circumferential direction. Duri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B7/06C23C4/12C23C4/129
Inventor 孙晋奇许鹏缪伟民
Owner ANTON OILFIELD SERVICES (GRP) LTD
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