Raw material mixing device for metal powder injection molding and metal powder injection molding method

Abstract

The invention discloses a raw material mixing device for metal powder injection molding and a metal powder injection molding method, and relates to the technical field of metal powder application. The raw material mixing device comprises a support seat and a gathering hopper; the top of the support seat is fixedly provided with a mixing cylinder, a first motor is fixed to the inner wall of the first supporting seat; a cover plate is fixed to the top of the mixing cylinder; a supporting plate is fixed to the top of the cover plate; a second motor is fixed to the inner wall of the first supporting plate; and one end of an output shaft of the second motor is fixedly provided with a first support rod. The second motor synchronously drives a plurality of first spiral augers to rotate in a gear transmission manner, so that the first spiral augers are matched with material conveying pipes to drive raw materials in the mixing cylinder to be stirred up and down; the plurality of material conveying pipes are distributed in a circular array and the length of the material conveying pipes is gradually reduced along the clockwise direction, so the raw materials at different depth positions in the mixing cylinder can collide in the material gathering hopper and are further fully mixed under the action of a plurality of second stirring rods, so that the effect and the efficiency of uniformly mixing the raw materials can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of metal powder application, in particular to a raw material mixing device for metal powder injection molding and a metal powder injection molding method. Background technique [0002] Metal powder refers to a group of metal particles whose size is less than 1 mm. Including single metal powder, alloy powder and some refractory compound powder with metal properties, it is the main raw material of powder metallurgy. The metal substance is generally silvery white. When the metal is under certain conditions, it is black powder. Most metal powders are black. The preparation and application of metal powder have a long history. In ancient times, gold, silver, copper, bronze and some oxide powders were used as coatings for the coloring and decoration of pottery, jewelry and other utensils. Metal powder is a loose substance, and its performance comprehensively reflects the properties of the metal itself, the prope...

AI Technical Summary

Problems solved by technology

The existing metal powder injection molding raw material mixing device has a relatively simple structure, a relatively single mixing method, and a low stirring force, resulting in a poor mixing effect of the metal powder raw material and a long time for mixing, which cannot meet the requirements of the metal powder. The actual production needs of powder injection molding; at the same time, the existing metal powder injection molding raw material mixing device is not easy to export the mixed raw materials when discharging. It is not conducive to the rapid use and production of metal powder raw materials

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