Method for rolling tungsten copper thin plate with high tungsten content

Abstract

The invention discloses a method for rolling a tungsten copper thin plate with high tungsten content. The method for rolling the tungsten copper thin plate with high tungsten content comprises the following steps of: placing plate-shaped tungsten copper blanks with high tungsten content and the thickness of 3 to 12 mm into a heating furnace; heating to 700 to 900 DEG C under the hydrogen protection condition; preserving the heat for 30 to 60 minutes; preheating a roller of a hot rolling mill to 300 to 500 DEG C; and rolling the tungsten copper blanks subjected to heat preservation to obtain the tungsten copper thin plate with high tungsten content and the thickness of 1 to 2.2 mm. The plate-shaped tungsten copper plate with high tungsten content is rolled by a hot rolling method; the heating temperature and rolling parameters are controlled; after the rolling total deformation rate reaches 60 percent, two phases such as tungsten and copper are changed into the fiber-shaped and uniform tissue, so the problem that the interfaces of the two phases are compact and difficult to combine because the tungsten and the copper are insoluble mutually is solved.

Description

technical field [0001] The invention belongs to the technical field of tungsten-copper material preparation, and in particular relates to a rolling method of a tungsten-copper thin plate with high tungsten content. Background technique [0002] Tungsten copper is a pseudoalloy composed of high melting point, high strength tungsten and high electrical and thermal conductivity copper. Because of its good corrosion resistance, welding resistance, high strength and high hardness, it is currently widely used as an electrical Contact materials, plasma electrode materials, military materials for high temperature, heat sink substrates and packaging materials. With the continuous development of high technology, the requirements for the performance of tungsten copper materials are also getting higher and higher. For example, high strength and high airtightness require a relative density close to full density, and the shape of complex shape parts is close to the finished shape. Tradit...

AI Technical Summary

Problems solved by technology

This method uses hot rolling to roll the plate-shaped tungsten-copper billet with high tungsten content. By controlling the heating temperature and rolling parameters, after the total rolling deformation rate reaches 60%, the two phases of tungsten and copper have become fibrous. A more uniform structure overcomes the difficulty of dense bonding of the two-phase interface due to the incompatibility between tungsten and copper