Pyrophyllite block compression forming device and method

Abstract

The invention discloses a pyrophyllite block compression forming device which comprises a plurality of groups of presses, a hydraulic oil pump and a forming die, wherein a die charging mechanism, a feed mechanism and a pressure control system are connected to the presses. The device is characterized by uniformly feeding by a lifting mechanism and accurately controlling the pressure by a PLC (programmable logic controller), so that not only the automation of forming and pressing pyrophyllite blocks by a plurality of units is realized, the production efficiency of the pyrophyllite blocks is greatly improved, the labor intensity and the production cost are reduced, but also the accuracy of the feature dimensions and the consistency of the densities and the compressive strengths of the pyrophyllite blocks are reliably ensured, and thus, the forming quality of the pyrophyllite blocks is greatly improved and the requirement on large-scale synthesis of high-grade diamond is met.

Description

technical field [0001] The invention belongs to the technical field of making superhard material synthesis auxiliary tools, in particular to a pressing and forming device and a forming and pressing method of pyrophyllite block for diamond synthesis. Background technique [0002] In the diamond synthesis technology, the pyrophyllite block is an indispensable and important auxiliary tool. The shape accuracy of the pyrophyllite block and its internal density, compressive strength and size consistency are important for the synthesis efficiency of diamond and the quality of synthetic products. Quality grade plays a very important role. At present, the production method of pyrophyllite block pressing generally adopts multiple molds, and a group of multiple people jointly operates a piece of equipment. Each group mixes materials by itself, weighs and presses by hand, ejects the mold, and then operates manually based on the pressure displayed by the pressure gauge. work pressure. ...

AI Technical Summary

Problems solved by technology

The main defects of this method are: 1) high labor intensity and low production efficiency; 2) due to the differences in the operation of molds and individual personnel, manual weighing errors are large, the consistency of pressure holding is poor, and the quality of pyrophyllite blocks is not easy to control. It is easy to cause product pollution, and the quality of the produced pyrophyllite blocks is poor, which directly affects the synthesis of high-grade diamonds, and the scrap rate is high, which makes the production cost high; 3) Only by manually operating the main hydraulic oil pump to control the pressure, the working pressure is inaccurate and uniform 4) Impurities are easily mixed into the raw materials loaded into the mold, which will easily lead to a decline in the performance of pyrophyllite blocks; 5) The height error of the pressed pyrophyllite blocks is large, which cannot meet the needs of high-grade diamond synthesis ;6) The forming mold used is made of medium carbon steel, which is easy to deform, wear and damage during the pressing process, which directly affects the pressing quality and efficiency of pyrophyllite blocks

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