A production process of plasma tungsten carbide spraying

Abstract

The invention discloses a plasma tungsten carbide spraying production process. The plasma tungsten carbide spraying production process includes the following specific steps of S1: pretreatment of a workpiece; S2: sandblasting treatment; S3: grinding and polishing treatment; S4: tungsten carbide treatment; S5: thermal reaction; S6: mechanical reinforcement; S7: equipment adjustment; S8: powder supplying; S9: spraying distance and spraying angle; S10: preheating treatment of the workpiece; S11 spraying; and S12: cooling and packaging of the workpiece. According to the tungsten carbide spraying production process, a coating obtained by means of plasma spraying is flat and smooth and high in compactness, the powder deposition rate is very high, a matrix is not electrified or melted in the spraying process, the matrix and a spraying fun are high in relative movement speed, and a matrix structure is made not to change; and tungsten carbide powder is subjected to mechanical reinforcing treatment, the spraying fusion penetrating effect is good, the spraying and cooling process is performed in a ventilating and dust removing indoor space, powder dust generated in the work process can be effectively adsorbed and filtered out, the work environment is guaranteed, and the plasma tungsten carbide spraying production process is suitable for wide popularization.

Description

technical field

[0001] The invention relates to the technical field of tungsten carbide spraying, in particular to a plasma tungsten carbide spraying production process. Background technique

[0002] Spraying is a coating method in which spray guns or disc atomizers are dispersed into uniform and fine droplets by means of pressure or centrifugal force and applied to the surface of the object to be coated. It can be divided into air spraying, airless spraying, electrostatic spraying and various derivative methods of the above basic spraying forms, such as large flow and low pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying, etc. The production efficiency of spraying operations is high, It is suitable for manual operation and industrial automation production. It has a wide range of applications, mainly in hardware, plastics, furniture, military industry, ships and other fields. It is the most commonly used coating method today; the envir...