Screw conveyer blade with abrasion-resistant coating

Abstract

The invention discloses a screw conveyer blade with an abrasion-resistant coating. The blade is of a sector structure and is spatial warping or plane-shaped. The blade is spirally arranged on a rotation shaft; a working side surface and / or an arc top surface of the blade is covered with an abrasion-resistant coating; and the abrasion-resistant coating is sprayed by adoption a powder plasma spray welding process and uses alloy powder as a filling material. The screw conveyer blade can overcome the defects of blades made of the conventional abrasion-resistant steel materials, and has excellent high temperature abrasion-resistant performance; and the service life of the blade is prolonged, and the conveying of materials can be ensured in a high temperature environment.

Description

technical field [0001] The invention relates to a screw conveyor blade with a wear-resistant coating. Background technique [0002] The screw conveyor used to transport materials drives the screw blades to convey materials through the rotation of the screw shaft. It can work in a normal temperature environment or in a high temperature environment to convey high temperature materials. During the material conveying process, due to the direct contact between the material and the screw blade, the blade is subjected to strong abrasive wear of the material, and it is easy to fail due to wear. In order to avoid the wear of the blades, some wear-resistant steel materials are usually used to make the blades, but the use effect is not ideal, especially in the high temperature environment of nearly 800-900°C, the hardness of the wear-resistant steel materials will be greatly reduced. It is extremely vulnerable to wear and failure, which reduces the service life of the blades and affec...

AI Technical Summary

Problems solved by technology

In the process of material transmission, due to the direct contact between the material and the screw blade, the blade is subjected to strong abrasive wear of the material, and it is easy to fail due to wear.

In order to avoid the wear of the blades, some wear-resistant steel materials are usually used to make the blades, but the use effect is not ideal, especially in the high temperature environment of nearly 800-900°C, the hardness of the wear-resistant steel materials will be greatly reduced. Reduced, very susceptible to wear and failure, reducing the service life of the blades, affecting the transportation of materials in high temperature environments

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