Device for realizing powder high-density vibration compression moulding

Abstract

A device for realizing powder high-density vibration compression moulding comprises a base 1, a mechanical vibration device 2, a clamp 3, a mould component 4, a hydraulic system 5, an ultrasound vibration device 6, a bearing seat 7, a data acquisition system 8, a motor 9 and a frequency adjustment control system 10. The device has the advantages that three-dimensional mechanical vibration with accurate and controllable amplitude and frequency, two-way axial compression with different impact speed and pressure, and ultrasonic vibration with adjustable frequency are used for cold-state moulding, organic bonding of various links from initial powder filling in a mould to powder transmission then to tightening under the vibration condition is comprehensively considered, and accordingly a high-performance densification compact with uniformly distributed inner density and stress is obtained, quality and performance of powder metallurgy parts and ceramic products are enhanced, and production cost is lowered. The whole process is controlled by a PLC (programmable logic controller), visualization of compact macroscopic performance change during powder tightening can be achieved by data acquisition and conversion, and process optimization and production automation are convenient to realize.

Description

technical field [0001] The invention relates to physical experiment equipment, which is a device for realizing high-density vibratory pressure forming of powder, which is used for forming powder particles in the fields of metallurgy, ceramics and chemical industry, and is especially suitable for preparing high-quality dense compacted materials with uniform internal pressure and density distribution. Blanks can also be used for near and net shape of some powders. Background technique [0002] The forming of powder is an important link in the production of powder metallurgy and ceramics industry. Sintering and post-processing the formed compact can obtain a fully dense powder product. The current research mainly focuses on the sintering link, and the forming process There are relatively few studies, especially from the initial powder filling to its transmission in the mold to the compact high-density forming equipment under the action of external energy. There is no relevant r...

AI Technical Summary

Problems solved by technology

The process of cold forming includes the initial filling of powder in the mold, the transmission of powder in the mold and the compaction under the action of external energy. At present, most of the researches at home and abroad focus on the third link. The special compacting method can obtain a higher green compact density, but due to insufficient preparation for the first two links, the quality control of the fine powder green compact is not good, resulting in unstable quality of the final powder product

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