Method for preparing high-strength and high-wear-resistance copper-boron alloy through hot extrusion and cold forging

The invention discloses a method for preparing a high-strength and high-wear-resistance copper-boron alloy through hot extrusion and cold forging, which comprises the following steps of: 1, preparing a copper-boron alloy ingot by using a directional solidification method by taking a copper block and boron particles as raw materials; 2, the copper-boron alloy cast ingot is subjected to machining and copper sleeve coating, hot extrusion deformation is carried out, and a copper-boron alloy material sample obtained after hot extrusion is obtained; and 3, machining the copper-boron alloy material sample to obtain a copper-boron alloy material in a hot extrusion state, and performing room-temperature cold forging by adopting an air hammer to obtain the high-strength and high-wear-resistance copper-boron alloy material in a cold forging state. The copper-boron alloy material prepared through the method is excellent in surface quality and uniform in structure, boron particles are fine and dispersed in distribution, a