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Rotating plasma spraying equipment

A spraying equipment and plasma technology, applied in the thermal spraying field of surface engineering technology, can solve problems such as the inability to guarantee the spraying distance, affect the coating quality, and cracking of the coating, achieve good social and economic benefits, ensure the coating quality, and reduce internal The effect of stress

Inactive Publication Date: 2015-11-04
北京联合涂层技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The difficulty of spraying parts with inner holes is that too small inner holes cannot guarantee a sufficient spraying distance, which will lead to overheating of the body, affect the quality of the coating, and even cause the coating to crack and fall off

Method used

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  • Rotating plasma spraying equipment
  • Rotating plasma spraying equipment

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Experimental program
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Effect test

Embodiment Construction

[0019] 1. Equipment structure and composition: the bearing (14a) is installed into the fixed plate (14); the water inlet ring (7) is installed into the water inlet ring sealing ring (7b) and the water inlet ring sealing ring (7c), and the bearing (14a ) is fixed on the fixed plate (14); the water outlet ring (6) is put into the water outlet ring sealing ring (6b) and the water outlet ring sealing ring (6c), and fixed on the water inlet ring (7); the cooling gas ring (5) is installed Insert the cooling gas sealing ring (5b) and the cooling gas sealing ring (5c), and fix it on the water outlet ring (6); the protective gas ring (4) is installed into the protective gas sealing ring (4b) and the protective gas sealing ring (4c), It is fixed on the cooling gas ring (5); the plasma gas ring (3) is put into the plasma gas sealing ring (3b) and the plasma gas sealing ring (3c), and fixed on the protective gas ring (4); the bearing ring (2) is installed into the bearing (2a), fixe...

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Abstract

The invention relates to bore-rotating plasma spraying special equipment which comprises a powder, plasma gas, shielding gas, cooling air, cooling water inlet and backwater rotary conveying mechanism, an electric slip ring, a transmission mechanism, a coupling assembly and the like. Through the equipment, a bore plasma spraying gun can rotate 360 degrees continuously and endlessly, and stable transmission of powder, plasma gas, cooling air, cooling water inlet and backwater and current can be guaranteed. The equipment is suitable for plasma spraying of automobile engine cylinder bores, cylinder sleeves and other bore parts. The rotating plasma spraying equipment can make the bore gun rotate 360 degrees continuously and maximize the spraying distance by the utilization of centrifugal force so as to guarantee enough spraying distance, avoid overheating of workpieces, reduce internal stress and ensure coating quality.

Description

technical field [0001] The present invention relates to the field of thermal spraying of surface engineering technology, and plasma spraying of inner holes of parts. In particular, it involves plasma spraying of cylinder bores, cylinder liners and other inner holes of automobile engines. Background technique [0002] Thermal spraying technology can solve problems such as wear resistance, anti-corrosion, insulation, conductivity, increase friction, reduce friction, etc., and change the surface characteristics of parts. Plasma spraying is an important process method in thermal spraying technology. The plasma flame temperature of plasma spraying is high, and the temperature of the nozzle of the spray gun can reach 18000 degrees. The distance of plasma spraying is generally 70~150mm. The temperature is generally several thousand degrees. The difficulty of spraying parts with inner holes is that too small inner holes cannot guarantee a sufficient spraying distance, which will...

Claims

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Application Information

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IPC IPC(8): C23C4/12
Inventor 贾鹏刘家逢
Owner 北京联合涂层技术有限公司
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