Device for preparing alloy with uniform organization and performance

Abstract

The invention discloses a device for preparing an alloy with uniform organization and performance. The device is characterized by comprising a rack body, an extrusion barrel (4), a multi-passage extrusion female die (5), a one-time extrusion female die (6) and an extrusion rod (7), wherein the rack body consists of an upper pressing plate (1), a lower pressing plate (2) and a connecting guide bolt (3); the extrusion barrel (4), the multi-passage extrusion female die (5), the one-time extrusion female die (6) and the extrusion rod (7) are arranged between the upper pressing plate and the lower pressing plate from top to bottom in sequence; the extrusion rod (7) is arranged in the extrusion barrel; the extrusion barrel (4) and the one-time extrusion female die (6) are assembled together in a coaxial mutual fastening mode; the multi-passage extrusion female die (5) is fastened in an extrusion female die mounting cavity machined in the inner wall of a mutual fastening end of the extrusion barrel (4) and the one-time extrusion female die (6); the outer annular surfaces of the extrusion barrel (4) and the one-time extrusion female die (6) are both provided with heating bodies (8, 9); both the extrusion barrel (4) and the multi-passage extrusion female die (5) are provided with temperature control thermocouples (10, 11); and the multi-passage extrusion female die (5) is provided with at least two extrusion passages.

Description

technical field [0001] The invention relates to a device for preparing alloys with uniform structure and properties. Background technique [0002] The structure of the material determines its performance. The mechanical properties of metal materials are often significantly improved after obtaining a fine-grained structure. When the grains are refined to the submicron or nanometer level, the material exhibits some physical properties different from traditional materials, high strength and toughness. properties as well as low temperature and high strain rate superplasticity. Therefore, starting from grain refinement, it has become increasingly important for the research and development of traditional material transformation processes. [0003] At present, the main ways to refine the structure of metal materials are rapid solidification and plastic processing. The effect of refining the alloy structure through rapid solidification is limited, the cost is relatively high, and ...

AI Technical Summary

Problems solved by technology

Although both equal-channel angular extrusion and reciprocating extrusion can produce large pieces of uniform fine-grained materials, the deformation of each time of equal-channel angular extrusion and reciprocating extrusion is relatively small, and multiple passes of extrusion are required to obtain Uniform fine-grained structure, unable to achieve continuous preparation of materials

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