Double-phase ceramic anti-attrition copper alloy and preparation method thereof
A technology of copper alloy and ceramics, which is applied in the field of dual-phase ceramic antifriction copper alloy and its preparation, can solve the problems of limited contribution of copper wear resistance, achieve low price, reduce laser energy consumption, and improve wear resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] (1) After weighing aluminum powder and copper oxide powder with a molar ratio of 2:3, put them into a vacuum ball mill tank, and mix them by high-energy ball milling process. / CuO powder;
[0027] (2) Add silicon powder with a mass fraction of 3wt% to the Al / CuO powder in the above step (1), and continue ball milling and mixing to obtain a uniformly mixed composite material powder;
[0028] (3) Under the composite protective atmosphere of argon and nitrogen with a flow rate ratio of 99:1, the composite material powder in the above step (2) is scanned and sintered by using a high-energy laser beam with a power of 150W to obtain an in-situ dispersion on the copper alloy matrix. Anti-friction Al 2 o 3 Ceramic and lubricated Si 3 N 4 ceramic phase.
[0029] figure 1 It is the microstructure topography figure of the in-situ dual-phase ceramic anti-friction copper alloy formed in Example 1, and it can be found that the in-situ Al 2 o 3 with Si 3 N 4 The interface be...
Embodiment 2
[0031] (1) After weighing aluminum powder and copper oxide powder with a molar ratio of 2:3, put them into a vacuum ball mill tank, and mix them by high-energy ball milling process. The ball milling speed is 200rpm, and the ball milling time is 6h to obtain uniformly mixed / CuO powder;
[0032] (2) Add silicon powder with a mass fraction of 5wt% to the Al / CuO powder in the above step (1), and continue ball milling and mixing to obtain a uniformly mixed composite material powder;
[0033] (3) Under the composite protective atmosphere of argon and nitrogen with a flow ratio of 95:5, the composite material powder in the above step (2) is scanned and sintered by using a high-energy laser beam with a power of 250W, and the in-situ dispersion on the copper alloy matrix is obtained. Anti-friction Al 2 o 3 Ceramic and lubricated Si 3 N 4 ceramic phase.
Embodiment 3
[0035] (1) After weighing the aluminum powder and the copper oxide powder with a molar ratio of 2:3, put them into a vacuum ball milling tank, and mix them using a high-energy ball milling process. The ball milling speed is 250rpm, and the ball milling time is 8h. / CuO powder;
[0036] (2) Add silicon powder with a mass fraction of 8wt% to the Al / CuO powder in the above step (1), and continue ball milling and mixing to obtain a uniformly mixed composite material powder;
[0037] (3) Under the composite protective atmosphere of argon and nitrogen with a flow ratio of 90:10, the composite material powder in the above step (2) is scanned and sintered by using a high-energy laser beam with a power of 350W, and the in-situ dispersion on the copper alloy matrix is obtained. Anti-friction Al 2 o 3 Ceramic and lubricated Si 3 N 4 ceramic phase.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Wear rate | aaaaa | aaaaa |
| Wear rate | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More