Artillery shell anti-friction bushing and its manufacturing method

Abstract

A projectile anti-friction bushing and its manufacturing method are disclosed. The projectile anti-friction bushing comprises a white propellant-coated cloth and an anti-friction layer. The anti-friction layer is fixed to the upper surface of the white propellant-coated cloth, and the surface of the anti-friction layer has a plurality of folds. The manufacturing method of the projectile anti-friction bushing includes preparing a wax injection machine, placing the cloth, molding and pressing, spraying and pressing the anti-friction agent, cooling and curing, removing the anti-friction bushing, punching and creasing, and packaging. The projectile anti-friction bushing can cover the shell of the projectile, and then the projectile is placed into the gun barrel. After the projectile is fired, the anti-friction layer will vaporize due to high temperature, generating a lubricating effect, thereby protecting the gun barrel and extending its service life. Because the projectile anti-friction bushing uses a wax injection machine to vaporize the anti-friction agent and spray it onto the surface of the white propellant-coated cloth to increase the agent density, and then presses it, the anti-friction agent is evenly distributed on the white propellant-coated cloth and penetrates into every pore of the white propellant-coated cloth, allowing it to be tightly sealed with the white propellant-coated cloth.

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