A wear-resistant excavator bucket tooth and its manufacturing process

Abstract

The invention relates to the technical field of excavator bucket teeth, in particular to a wear-resistant excavator bucket tooth and a manufacturing process thereof, comprising a bucket tooth body, a reinforcing material A and a reinforcing material B, and various components of the wear-resistant excavator bucket tooth Its weight percentages are: C 1.20‑1.50%, Si 0.35‑0.85%, Mn 18‑24%, Cr 1.5‑4%, Ni 0.2‑0.5%, Mo 0.25‑0.35%, S≤0.05%, P≤0.05 %, and the balance is Fe; in the present invention, by adding reinforcing material A and reinforcing material B, the reinforcing material A contains organic compounds. When the reinforcing material A and the bucket tooth base form the cladding layer, some gas will be generated and overflow, resulting in The cladding layer forms pores, and the quality of the bucket teeth is affected. Laser cladding is used to clad reinforcing material B on the bucket teeth and reinforcing material A. The reinforcing material B fills the pores and fuses with the bucket tooth matrix. At the same time, The reinforcing material A and the reinforcing material B are interpenetrated and bridged with each other, thereby forming a dense cladding layer, which improves the wear resistance and hardness of the bucket teeth of the excavator.

Description

technical field [0001] The invention relates to the technical field of excavator bucket teeth, in particular to a wear-resistant excavator bucket tooth and a manufacturing process thereof. Background technique [0002] The bucket teeth are generally installed at the front end of the excavator bucket, and are in direct contact with rocks, ore and other materials during operation. When the bucket teeth cut the material, the bucket teeth and the material move relative to each other, and a large positive extrusion force is generated on the surface. As a result, a large friction force is generated between the working face of the bucket teeth and the material. The bucket teeth have to bear the impact, and also bear the bending moment during excavation. Due to the large impact for a long time, the surface of the bucket teeth has different degrees of impact. The wear and tear, the huge number of replacements every year, the value is immeasurable. [0003] In the prior art, a layer ...

AI Technical Summary

Problems solved by technology

[0002] The bucket teeth are generally installed at the front end of the excavator bucket, and are in direct contact with materials such as rocks and ores during work. When the bucket teeth cut the material, the bucket teeth and the material move relative to each other, generating a large positive extrusion force on the surface. As a result, a large friction force is generated between the working surface of the bucket teeth and the material. The bucket teeth have to bear the impact, and they also have to bear the bending moment when digging. Wear and tear, the number of replacements every year is huge, and the value is immeasurable

[0003] In the prior art, a layer of metal-based alloy powder is often coated on the surface of the bucket tooth base to improve the wear resistance of the cladding layer, but the organic matter in the metal-based alloy powder will generate gas overflow during pouring, resulting in the formation of cladding layer air holes, the quality of bucket teeth is affected