Rotary ultrasonic vibration gas current-carrying powder feeder and electric arc additive system

Abstract

The invention belongs to the field of metal materials, and particularly relates to a rotary ultrasonic vibration gas current-carrying powder feeder and an electric arc additive system. A powder cylinder and a transfer chamber arranged below the powder cylinder are included. A rotatable ultrasonic vibration stirring rod is arranged in the powder cylinder, and powder in the powder cylinder uniformly falls into the transfer chamber through powder cylinder through holes in the bottom end of the powder cylinder through ultrasonic vibration and stirring. A hub and a transfer chamber through hole are formed in the transfer chamber, a plurality of hole grooves are evenly distributed in the circumferential face of the hub, the upper portion of the transfer chamber through hole is connected with a gas cylinder, and after powder in the powder cylinder falls into the transfer chamber, the hub rotates, so that the powder in the hole grooves of the hub is driven to enter the transfer chamber through hole, the powder transferred by the hub is uniformly and stably conveyed into deposited metal in the manner that gas passes through the bottom of the through hole. The problem that powder is poor in flowability and cannot fall off from the powder cylinder can be solved through the rotatable ultrasonic vibration rod, and the applicability of the powder feeder to powder with different flowability is improved.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates to a rotating ultrasonic vibration gas-carrying powder feeder and an arc material adding system. Background technique [0002] At present, the industry's performance requirements for metal materials are gradually increasing. How to conveniently and quickly adjust the alloy composition for material processing to improve the performance of parts has become a research hotspot. High-temperature smelting can effectively improve the problem that the performance of welding wire with fixed components is difficult to improve, but the production methods and particle sizes of different alloy powders are very different, and the powder feeder is likely to encounter poor powder fluidity during the powder feeding process, resulting in blockage. The powder holes cannot be transferred smoothly. A kind of welding negative pressure powder feeding equipment disclosed in patent CN2788954Y incl...

AI Technical Summary

Problems solved by technology

Although this kind of negative pressure powder feeder can solve the problem of powder feeding volume control through the rotation speed and the size of the notch, but because the hub is directly connected with the through hole of the powder cylinder and the powder drop hole, if the powder feeding volume is too large, it is very difficult to It will cause blockage of the powder feeding pipeline, and for the non-spheroidized powder with high viscosity, easy to accumulate and poor fluidity, it is difficult for the powder to fall into the transfer chamber, making it difficult to control the amount of powder when the hub transports the powder. control

[0003] With the development of robotic welding automation and 3D printing technology, the production of metal parts with complex structures through additive manufacturing has become more and more the focus of scientific research. Typical arc additives use automated welding robots and digital wire feeding systems. By reasonably controlling the heat input and the amount of wire feeding, the robot will melt the welding wire into liquid deposited metal according to the set processing path, and accumulate layer by layer until the parts are processed, but the alloy composition in the welding wire is fixed. If you want Improving the performance of parts can only be done by additive manufacturing with welding wires of different components, which makes the processing of parts time-consuming

Images