Die for ceramic powder tabletting forming machine

Abstract

The invention discloses a die for a ceramic powder tabletting forming machine. The die comprises an upper punch die body, a lower punch die body and a middle die body located between the upper punch die body and the lower punch die body. The die is characterized in that the parts, making contact with powder, of the upper punch die body, the lower punch die body and the middle die body are made of ceramic materials; and the other parts are made of metal or alloy materials. A punch rod of the upper punch die body and a punch rod of the lower punch die body are both made of metal or alloy materials. Punches of the upper punch die body and the lower punch die body are both made of ceramic materials and connected through a rivet. The middle die body is composed of a main die body made of metal or alloy materials, and a ceramic lining arranged in an inner hole of the main die body. The ceramic lining and the main die body are in pressing close fit. The die has the beneficial effects that the die is durable, after the die is damaged, the number of replaced components is small, and cost is low.

Description

technical field [0001] The invention belongs to the field of molding equipment, in particular to a mold for a ceramic powder tablet molding machine. Background technique [0002] Tablet presses are widely used in medicine, food, ceramics and other industries. The mold is an important working part of the tablet press, and the commonly used materials are alloys and ceramics. For the pharmaceutical and food industries, the molded powder has low hardness, and the molds of the two materials are more durable, but for the ceramic industry, the molded powder such as magnesium oxide itself is an abrasive with high hardness. After the alloy mold is used for a period of time, it is scrapped due to excessive wear, and the ground mold material will pollute the ceramic powder and affect the performance of the ceramic product. [0003] High-strength ceramics are the only suitable mold materials for the ceramic industry, but their manufacturing costs are relatively high. In addition, the...

AI Technical Summary

Problems solved by technology

After the alloy mold is used for a period of time, it is scrapped due to excessive wear, and the ground mold material will pollute the ceramic powder and affect the performance of the ceramic product

[0003] High-strength ceramics are the only suitable mold materials for the ceramic industry, but their manufacturing costs are relatively high

In addition, the material of the ceramic mold is relatively brittle, bumped or used improperly, the mold head will be damaged, and the whole mold will be scrapped

Therefore, both alloy and ceramic molds are consumables with a large amount.

Images