Cooling Device for Plasma Spraying of Light Alloy Rotary Parts

Abstract

The invention provides a cooling device for light alloy rotary part plasma spraying, and relates to the technical field of water cooling devices for thermal spraying. The cooling device for light alloy rotary part plasma spraying comprises a cooling water tank, a workpiece clamping tool positioned inside the cooling water tank, a motor rotary shaft which is arranged on the bottom of the cooling water tank, and passes through the cooling water tank to drive the workpiece clamping tool to rotate, wherein the bottom of the motor rotary shaft is connected with a rotary motor; a to-be-coated workpiece is arranged above the workpiece clamping tool; cooling liquid is arranged among the inner wall of the cooling water tank, the workpiece clamping tool and the to-be-coated workpiece; the rotary motor drives the workpiece clamping tool and the to-be-coated workpiece to rotate in the cooling liquid through the motor shaft; and space for allowing the to-be-coated workpiece to rotate is arranged inthe cooling water tank. With the adoption of the technical scheme, a liquid-state cooling environment is formed on the outer surface of the to-be-coated workpiece, so that a base material is prevented from being excessively heated in a spraying process, and therefore, the bonding effect between a coating and a light alloy base material is guaranteed, and coating bonding strength is improved.

Description

technical field [0001] The invention relates to the technical field of thermal spraying water cooling devices, in particular to a cooling device for plasma spraying of light alloy revolving parts. Background technique [0002] Light alloys, especially aluminum alloys, are widely used due to their wide source, low cost, and high specific strength. However, aluminum alloys have poor corrosion resistance, wear resistance, and ablation resistance. The aluminum alloy workpiece under the surface needs to undergo certain surface protection treatment. [0003] Thermal spraying is one of the most widely used surface protection methods. It uses a heat source to heat spray materials such as metals, alloys, and ceramics to a molten or semi-molten state, then atomizes them through high-speed airflow, and sprays and deposits them on the surface at a certain speed. The surface of the workpiece to form a surface covering layer with specific functions such as corrosion resistance, wear resi...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a cooling device for plasma spraying of light alloy rotating body parts, which is suitable for controlling the temperature of the workpiece during the thermal spraying process of light alloys, reducing the residual stress of the coating, and solving the problem of low bonding strength of the coating on the light alloy arc-shaped rotating body and other technical problems

Images