Comprehensive powder metallurgy sintering operation system and operation method

Abstract

The invention discloses a comprehensive powder metallurgy sintering operation system and an operation method. The comprehensive powder metallurgy sintering operation system comprises a magnetic attraction type powder forming device, the magnetic attraction type powder forming device comprises a pressing block, a magnetic attraction body and a forming cavity, the magnetic attraction body magnetically attracts magnetic metal powder downwards, and the pressing block stretches into the forming cavity to press the magnetic metal powder downwards; the system further comprises a high-temperature liquid wrapping and protective atmosphere flowing type powder metallurgy sintering device, the high-temperature liquid wrapping and protective atmosphere flowing type powder metallurgy sintering device comprises a high-temperature liquid wrapping part and a protective atmosphere circulating flowing supply part, and the high-temperature liquid wrapping part comprises a high-temperature sintering cavity, a molten metal forming cavity, a liquid distribution cavity and molten metal wrapping cavities; molten metal in the molten metal forming cavity is distributed through the liquid distribution cavity and flows into all the molten metal wrapping cavities. and the protective atmosphere circulating flowing supply part is used for circularly supplying a protective atmosphere into the high-temperature sintering cavity at a constant speed. The system and the method have the advantages that blank compaction forming is tight and solid, and high-temperature sintering is uniform and efficient.

Description

Technical field [0001] The present invention belongs to the technical field of powder metallurgy sintering, in particular to a powder metallurgy sintering comprehensive operating system, and method of operation. Background technique [0002] In powder metallurgy sintering operation, blank pressed by powder metallurgy affect the finished easily lead to sintering of low quality, which is not enough to suppress completely, close enough between the powder particles, resulting in longer sintering operation, the sintering effect is not good, the heat sintering process unevenness and a low heat transfer efficiency impact protective atmosphere, will cause the low temperature sintering efficiency and low product quality. For these reasons, the present invention is directed to powder metallurgy sintering process of the magnetic metal, supporting the design of an integrated operating system, and powder metallurgy sintering operation method, the blank having COMPACTED tight, firm and uniform...

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Problems solved by technology

[0002] In the powder metallurgy sintering operation, the powder metallurgy is affected by the compacted product of the billet, which easily leads to low sintering quality. Among them, the compaction is not thorough enough, and the powder particles are not compact enough, resulting in longer sintering operations, poor sintering effect, and heat during the sintering process. Inhomogeneity and the effect of low heat transfer efficiency in the protective atmosphere will also result in low high-temperature sintering efficiency and low product quality

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