Process for preparing copper alloy block

Abstract

The invention relates to a copper alloy block which comprises a shell and a powder grinding mechanism arranged in the shell. A feeding inlet is formed in the shell, and the shell is divided into an upper shell and a lower shell. The powder grinding mechanism is arranged between the upper shell and the lower shell and comprises a mobile block and a fixed block. A first rotation shaft movably penetrates in the mobile block, and the fixed block is fixed to the second rotation shaft. The two sides of the fixed block are concave inwards. The copper alloy block comprises a main body, and two air layers are arranged on the upper part and the lower part of the main body. The main body is copper alloy and is formed by mixing and firing 70% of copper, 20% of manganese, 5% of silicon and 5% of tin. The process has the beneficial effects that multiple times of grinding can be conducted; and during grinding, through quick heat dissipation effect of the grinding mechanism and special matching materials, a grinding block is wear-resisting, and the replacement frequency is low.

Description

technical field [0001] The invention belongs to the field of material crushing devices, and in particular relates to a copper alloy block. Background technique [0002] In the field of powder industrial production, a pulverizer is needed when crushing large objects. At present, a general pulverizer comprises a shell, which is provided with a material inlet and a material outlet, and a milling mechanism is arranged in the shell, which is used to grind and pulverize bulk materials into fine particles. [0003] In actual use, it is found that when crushing large pieces of material, the particle size of the material after one crushing cannot meet the requirements, and two or three crushings are required for further grinding to make the particle size of the powder finer and more uniform. At this time, It is very troublesome to manually take out the powder and then pour the powder from the material inlet. In the process of grinding particles, heat dissipation becomes a big probl...

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Problems solved by technology

[0003] In actual use, it is found that when crushing large pieces of material, the particle size of the material after one crushing cannot meet the requirements, and two or three crushings are required for further grinding to make the particle size of the powder finer and more uniform. At this time, It is very troublesome to take out the powder manually and then pour it in from the material inlet

In the process of grinding particles, heat dissipation becomes a big problem. During the friction process, a lot of heat will be generated, and the friction block is easy to be damaged, and the friction block needs to be replaced

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