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Small-sized wire drawing type electric arc spraying equipment

An arc spraying equipment, arc spraying technology, applied in arc spraying, coating, melting spraying and other directions, can solve the problems of large volume, limitation, large spraying flame flow, etc.

Active Publication Date: 2013-08-21
慈溪光华金属复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, the current arc spraying equipment can be divided into "push wire type" and "wire drawing type" from the structural point of view, but the equipment has problems such as large size, heavy weight, and many external cables, so handling and construction are not easy. Convenient, especially in special occasions such as small spraying space or field work, the construction will be restricted
In addition, although the medium and large arc spraying equipment has high spraying efficiency, but the spraying flame is large, it is not very suitable for the spraying of some small parts or the preparation of fine coatings, and it also wastes spraying materials.
In order to make up for the shortcomings of the current arc spraying equipment and to make up for the single status of the arc spraying equipment, a small wire drawing arc spraying equipment with small size and light weight is invented

Method used

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  • Small-sized wire drawing type electric arc spraying equipment
  • Small-sized wire drawing type electric arc spraying equipment
  • Small-sized wire drawing type electric arc spraying equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Example 1: Spraying of small stone lion exterior decoration

[0089] 1. Conditions: Spray metal coating on the surface of the stone lion as decoration, which requires beautiful appearance and resistance to atmospheric corrosion. According to the characteristics of the small wire drawing type spraying equipment of the present invention, the height of the stone lion body shape is most suitable below 500mm.

[0090] 2. Coating design: According to the use conditions of the spraying object, choose brass (other metal materials, such as Al, Fe) as the spraying material, and the diameter of the wire is Φ1.2mm. The coating of this low-power spraying is relatively Uniform and dense, delicate and beautiful, according to user requirements, the coating thickness can be 0.10 ~ 0.20mm.

[0091] 3. Spraying process: adopt the small-scale spraying equipment of the present invention, according to the shape of the spraying object, adopt the manual operation spraying operation mode, beca...

Embodiment 2

[0093] Embodiment 2: Field construction spraying of anti-corrosion coating on the surface of underground gas pipeline valves

[0094] 1. Current status of use: For the laying of gas pipelines in small and medium-sized cities along the coast, many gas pipeline valves are installed in underground wells. The space is relatively small, generally 2.5M high, 1.5M wide, and 2.5M long. Water accumulated at the bottom of the well all the year round, and the pipes and valves were severely corroded, requiring frequent painting protection. The spraying method can significantly improve the protection life, but it is difficult to construct due to the small working space. The construction of this project can be realized conveniently by adopting the small spraying equipment of the present invention.

[0095] 2. Coating design: According to the protection mechanism of severe wet corrosion, Zn-Al spraying wire is selected. As we all know, the protection life of this material can reach at least...

Embodiment 3

[0098] Example 3: On-site spraying of locomotive bearing positioning hole out-of-tolerance repair

[0099]1. Conditions of use: During the maintenance and repair of train locomotives, it is often found that the bearing positioning hole (on the locomotive shell) is worn out of tolerance due to long-term use, so that the outer ring of the bearing and the positioning hole cannot be tightly matched and slip. If the welding method is used for repairing, the welding operation is more difficult because the shell is large and the position cannot be changed. In addition, it is difficult to ensure the dimensional accuracy in post-welding processing, so the method of cementing is generally used for repairing, but the service life is short. The method can effectively solve this problem, but it is difficult to construct due to the small working space. By adopting the small spraying equipment of the present invention, the construction in a small space can be realized conveniently.

[0100]...

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Abstract

The invention relates to small-sized wire drawing type electric arc spraying equipment used for hot spraying, which is shown in the attached drawing of the abstract. The equipment adopts the technical scheme of an inversion type spraying power supply and a wire drawing type spraying gun, the output voltage of 10 to 40V is regulated in a stepless way, and the voltage can be regulated in the spraying process without stop; a manual / automatic spraying and wire inspection / spraying switch is arranged, which is convenient to select an operation mode and avoid the occurrence of the condition that electric arcs injure people and damage equipment because of the short circuit of a wire material when the spraying wire material is installed, regulated and inspected; the spraying wire material is limited to be phi 1.0 to phi 1.6mm, the maximum spraying current is 250A, the load duration rate is 100 percent, and continuous spraying is permitted; the weight of the spraying power supply is 15kg, and the weight of the spraying gun is 1.5kg; and the equipment has the characteristics of small volume, light weight, convenient carrying, safe and reliable equipment performance, convenient use, simple operation, stable spraying quality and the like, is suitable for the field operation and the use in an occasion with small spraying space and is suitable for spraying a component with a fine and small structure and a product with a fine coating.

Description

Technical field: [0001] The invention belongs to the technical field of surface engineering subject spraying, and is a novel arc spraying equipment in the arc spraying technology. Background technique: [0002] Surface engineering is a comprehensive new subject. Spraying technology is a very important surface modification technology in the subject of surface engineering. Due to its strong application value and significant economic and social benefits, it also saves energy and The superiority reflected in resources, maintenance and remanufacturing, environmental protection and pollution, etc., has effectively promoted the rapid development of this technology. In recent years, many new achievements have been made in spraying methods, equipment, processes, materials, etc. The present invention is a new type of arc spraying equipment, which is used to prepare coatings in thermal spraying industry. [0003] The principle of arc spraying is different from that of welding. It melt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/12C23C4/06B05B5/06C23C4/131
Inventor 郭面焕刘爱国丁少雄蔡林强
Owner 慈溪光华金属复合材料有限公司
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