Technology method relating to component in manufacturing artificial limb knee-joint

Abstract

The invention discloses a process method for manufacturing related components in prosthetic knee joints. In the method, a silica sol precision casting process is used to replace the forging process. The relevant process steps and process parameters are as follows: a. Prepare high-strength aluminum alloy materials, except for the main components In addition to Al, it also includes: Cu: 4.6-5.3, Mn: 0.3-0.5, Si≤0.06, Fe≤0.30, and the total amount of other impurities≤0.60. b. Melting and pouring: melting temperature 680-720°C, pouring temperature 680-700°C; c. heat treatment process: solid solution treatment at 533-543°C for 10-18 hours, aging treatment at 170-180°C for 4-5 hours Hour. Adopting the process of the present invention obviously simplifies the processing procedure of the relevant parts in the prosthetic knee joint, and the product is formed by one-time casting, which avoids many cutting and forging processes, improves the production efficiency and the utilization rate of metal materials, and not only simplifies the equipment and process, It also reduces the production cost and facilitates the formation of large-scale production capacity.

Description

Technical field [0001] The present invention relates to a manufacturing method of a prosthesis, in particular to a manufacturing method of related components in a prosthetic knee joint. Background technique [0002] The existing production process of the relevant parts of the knee joint is to form a blank shape after multiple forgings, and then process the initial processing to the finishing process. There are many production processes. The equipment required for mass production, the high plant requirements, and the large investment lead to the formation of the product. The cost remains high. The annual demand for such components is very large. At present, they are basically dependent on imports, and their prices are relatively high in the domestic market. However, the majority of middle- and low-income disabled people simply cannot afford them. [0003] Silica sol precision casting is a method of injecting fusible mold material into a pressure type (mold) to make an investment m...

AI Technical Summary

Problems solved by technology

Compared with the manufacture of related components in prosthetic knee joints with complex shapes and high strength requirements, due to the limitations of traditional techniques, there is no such method yet.