Active metal powder transfer oxygen-isolation screening system

Abstract

The invention discloses an active metal powder transfer oxygen-isolation screening system. According to the active metal powder transfer oxygen-isolation screening system, an isolation box body is adopted as a sealed vibration screening environment of a vibration screening machine, a side surface front door is arranged on one side of the isolation box body, an oxygen sensor gas inlet pipe is connected by utilizing a sensor gas path connection mouth formed in the upper end of the isolation box body, a protective gas path connection mouth is arranged in the side away from the sensor gas path connection mouth, a protective gas is introduced in through a protective gas source connected with the protective gas path connection mouth, the protective gas path connection mouth and the oxygen sensorgas inlet pipe are oppositely arranged to guarantee the accuracy of oxygen content detection of the isolation box body, dehumidifying and drying are performed on the interior of the isolation box body by utilizing a dehumidifier, closed-loop feedback control is performed through an oxygen content detection sensor on the basis of the oxygen content value, the required oxygen content value of the environment is set according to different working conditions of actual metal powder and can be a specific value or a range value, the internal environment can be guaranteed and the oxygen content can be monitored in real time when the system works, and the active metal powder transfer oxygen-isolation screening system is simple in device and safe and reliable.

Description

technical field [0001] The invention belongs to the field of active metal powder screening and transfer, and in particular relates to an oxygen barrier screening system for active metal powder transfer. Background technique [0002] 3D printing technology has been successfully used in many fields such as automobiles, energy, ships, and aerospace, and has broad market prospects. As the most potential rapid prototyping technology, metal 3D printing technology has attracted wide attention. Among them, the process methods that can directly manufacture metal functional parts are mainly wire additive manufacturing and powder additive manufacturing, and metal powder additive manufacturing. Material manufacturing mainly includes: Selective Laser Sintering (Selective Laser Sintering, SLS) technology, Direct Metal Laser Sintering (DMLS), Selective Laser Melting (Selective Laser Melting, SLM) technology, laser near net shape (Laser Engineered Net Shaping, LENS) technology and electron...

AI Technical Summary

Problems solved by technology

The whole process cannot strictly guarantee the water and oxygen content inside the powder sieving machine. In addition, even if the argon gas is insufficient or the oxygen content exceeds the standard at the beginning of powder sieving, there will be no inert gas supplement in the follow-up. It is difficult to avoid the equipment due to poor air tightness. Leakage, which in turn leads to safety hazards in the unsifted powder process, and may not provide acceptable quality sieved powder

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