Closed continuous aftertreatment system for metal powder

Abstract

The invention discloses a closed continuous aftertreatment system for metal powder. The system comprises a metal powder drying device, a screening device, a fine metal powder collecting tank, a weight loss scale and a fine powder packaging tank. The screening device is arranged below the metal powder drying device and is connected with a discharging port of the metal powder drying device in a sealed mode through a first discharging pipe, and the fine metal powder collecting tank is arranged below a fine powder discharging port of the screening device and is connected with the fine powder discharging port of the screening device in a sealed mode through a second discharging pipe; and the weight loss scale is arranged below the fine metal powder collecting tank and is connected with a discharging port of the fine metal powder collecting tank in a sealed mode through a third discharging pipe, and the fine powder packaging tank is arranged below the weight loss scale and is connected with a feeding port of the weight loss scale in a sealed mode through a fourth discharging pipe. According to the closed continuous aftertreatment system, the gravity feeding mode is adopted, and the problems that as for a conventional powder transferring mode, the loss quantity is a large, and adhering is prone to occurring to the pipe wall are solved; and additionally, through closing and automation of different working procedures, the problem of powder flying is solved, the production efficiency is improved, and the powder quality is ensured.

Description

technical field [0001] The invention relates to a closed and continuous post-processing system of alloy powder, in particular to a closed and continuous system in the multi-step production process of automatic screening, transmission, weighing and packaging of metal powder. Background technique [0002] With the development of the powder metallurgy industry, the requirements for the particle size of the raw metal powder continue to increase. In the metal injection molding process (MIM), the particles of the powder used must be very fine, have a high tap density and a low oxygen content. In addition, in diamond tools, pre-alloyed powders as binders are being developed towards ultra-fine, low-oxygen. [0003] At present, there are many existing industrial pulverization methods, among which the most common and efficient method is water atomization pulverization, which is a process of using water flow to impact the molten metal flow at high speed, thereby breaking the metal flo...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the defects of the prior art, the object of the present invention is to provide a metal powder closed continuous post-treatment system, which is especially suitable for post-treatment of ultra-fine water atomized alloy powders. The closed continuous post-treatment system is the Metal powder drying, sieving, weighing and packaging equipment are combined in the vertical direction through a closed soft connection, which solves the problems of powder flying, powder pollution and environmental pollution caused by separation and open operation during metal powder transmission

Images