A drying device for laser cladding powder

Abstract

The invention designs a drying device for laser cladding powder. The technical scheme is as follows: it includes a double-tapered cylinder body, the cylinder body is located on a frame, a rotating shaft 1 and a rotating shaft 2 are respectively fixed on both sides of the cylinder body, the rotating shaft 2 is connected with a driving component, and the cylinder body includes a cavity and an external cylinder. The body wall, the cavity is provided with a feeding port and a discharging port, the cylinder body includes an inner cavity and a cylinder wall outside the cavity, and the cavity is provided with a feeding port and a discharging port, and the feeding port and the discharging port The inlet is provided with a feed port cover and a discharge port cover respectively, spring pads are provided on the inner side of the feed port cover and the discharge port cover, and the inner side of the cylinder wall is etched by femtosecond laser scanning. Texture, the outer side of the cylinder wall is provided with a thermal insulation layer. The deformation caused by the collision of the powder with the inlet and outlet covers and the inner wall is reduced by the spring pad and nano-texture, and the powder will not be filled in the nano-texture when it collides with the inner wall, resulting in waste of powder. The powder is fully mixed, the powder has good fluidity, and the drying effect is good.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a drying device for laser cladding powder. Background technique [0002] Laser cladding, also known as laser cladding or laser cladding, is a new surface modification technology. It adds cladding material on the surface of the substrate and uses a high-energy density laser beam to make it together with a thin layer on the surface of the substrate. In the method of fusion, an additive cladding layer is formed on the surface of the base layer, which is metallurgically combined with it. Laser cladding powder is easy to be damp during storage and use. The synchronous powder feeding type laser cladding equipment has higher requirements on the fluidity of the powder. During the mixing process of the ordinary drying device, the powder and the inner wall of the cylinder, the upper and lower material opening cover Violent collision will occur, resulting in the increase of the forc...

AI Technical Summary

Problems solved by technology

Laser cladding powder is easy to get damp during storage and use. Synchronous powder feeding laser cladding equipment requires a lot of powder fluidity. During the mixing process of ordinary drying devices, the powder and the inner wall of the cylinder, the upper and lower cover Violent collisions will occur, resulting in greater force between powder particles, resulting in changes in powder morphology, the original spherical shape will change, reducing the fluidity of the powder

In addition, since the inner wall of the cavity needs to be transferred to the heat delivered by the heat source, it is not suitable to add spring pads

[0003] Therefore, it is necessary to develop a method that can solve the problem of violent collision between the powder and the inner wall of the cylinder and the cover of the upper and lower material ports during the mixing process, resulting in an increase in the force between the powder particles, resulting in a change in the original spherical shape of the powder and reducing the flow of the powder. The drying device for laser cladding powder is used to ensure the fluidity of the powder, make the laser cladding powder dry evenly and fully, ensure the drying effect and improve the drying efficiency

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