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Oxyacetylene flame gun made from bar sticks of ceramics and control method

A technology of flame spray gun and acetylene, applied in the direction of injection device, liquid injection device, melt spraying, etc., to achieve the effect of wide application prospect, compact structure, huge economic and social benefits

Inactive Publication Date: 2008-03-26
上海大豪纳米材料喷涂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the plasma spraying equipment is expensive and the operation cost is also high. The electric power is above 50 kilowatts, the heat utilization rate is low, and the on-site operation is difficult. Therefore, the promotion and application are also subject to certain restrictions.

Method used

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  • Oxyacetylene flame gun made from bar sticks of ceramics and control method
  • Oxyacetylene flame gun made from bar sticks of ceramics and control method
  • Oxyacetylene flame gun made from bar sticks of ceramics and control method

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0024] It can be seen from Fig. 1 that the ceramic bar oxygen and acetylene flame spray gun device of the present invention includes a combustion atomization injection unit, a cam type main valve to control the distribution and sequence control unit of oxygen, acetylene gas and compressed air, and a precise control unit for sending rod speed; The combustion atomization injection unit includes an air cap 1, a sleeve 2, a nozzle 3, a nozzle fire hole 4, an acetylene tank 5, a gas distribution seat 6, a nozzle injection hole 7, an oxygen tank 8, a sealing ring 9, and an air cap Seat 10, gas main head 11, front conduit bolt 12; said nozzle 3 has oxygen groove 8 and acetylene groove 5 radially; there are three sealing rings 9 between oxygen groove 8 and acetylene groove 5 to separate, nozzle fire The holes 4 are evenly distributed on the circumferenc...

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Abstract

An oxyacetylene flame spraying gun for smelting ceramic rod and spraying it onto the surface of object to form a coated ceramicl ayer features that the O2 and acetylene are directly mixed in the nozzle to form high-temp flame after ignition, the ceramic rod comes in the flame region at a certain speed for smelting it, and the molten ceramic it sprayed onto the surface of object by compressed air stream.

Description

technical field [0001] The invention relates to the field of thermal spraying process preparation, in particular to a ceramic bar oxygen and acetylene flame spray gun device and a control method thereof. Background technique [0002] Ceramic rod flame spray gun, the main spraying material is alloy and ceramic material, the geometric size is φ6×600 mm rod, and the heat source adopts oxygen and acetylene flame. [0003] The general characteristics of ceramic materials are high melting point, high hardness, good chemical stability, low thermal conductivity and electrical conductivity, and high brittleness; thermal spraying technology is used to spray ceramic coatings on metal substrates, taking advantage of the respective advantages of metal materials and ceramic materials Made into composite products. [0004] At present, there are two methods for preparing ceramic coatings by thermal spraying technology: one is oxygen and acetylene flame powder spraying, and the other is pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B7/20B05B7/18B05B7/02B05B7/14B05B12/02B05B12/08C23C4/129C23C4/134
Inventor 张关宝
Owner 上海大豪纳米材料喷涂有限公司
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