Method for preparing high-strength wear-resistant brass pipe

Abstract

The invention discloses a preparation technique of a brass tube of high rigidity and strong abrade resistance which is based on a new single beta phase based high rigidity and strong abrade resistance brass material adopting heat pressing technique with a 95 percent maximum deformation. It is based on Cu-Zn alloy together with metal elements which forms abrade resistance phase automatically such as Fe, Ni, Mn, Co, Ti, Cr, Si, Al, forming complex 5 to 9 plurality alloy system; these alloy element of strong combining ability hardly reacts with basal elements Cu and Zn though combines vividly with each other producing high rigidity compounds such as FeAl3, Mn5Si, Ni2Si, Co2Si, Cr-Si, Fe3Si, Ni-Ti and forming abrading resistant phase of complex elements and remarkably high rigidity.

Description

Technical field: [0001] The invention relates to the technical field of nonferrous metal processing, in particular to a method for preparing high-strength wear-resistant brass pipes. Background technique: [0002] Brass is the most important alloy variety among copper alloys. It is widely used in various fields of national economy because of its low cost and good performance. [0003] At present, the selection of materials for synchronous transmission gear rings and gear ring tubes in automobiles: single-phase or dual-phase brass alloys based on α-phase and α+β-phase, and the production method adopts centrifugal casting or horizontal continuous casting or forging Mainly, the brass alloy pipe produced by it is used to manufacture synchronous transmission gear rings of automobiles, and its maximum shift life does not exceed 70,000 to 80,000 times; The main casting products, due to the inhomogeneity of the solidification and crystallization process in the casting, the distribu...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem of uneven distribution of wear-resistant phases in the cast structure caused by the inhomogeneity of the solidification and crystallization process in casting, the purpose of the present invention is to provide a method for preparing high-strength wear-resistant brass pipes, especially for use in Heavy-duty, high-speed hydraulic rotors, sliding shoes, self-lubricating bearings, precision forgings, such as synchronous transmission gear rings and brass alloy materials for gear ring tubes of automobiles, to meet the needs of the rapidly developing automotive industry and improve product quality

Images