Popular Usage

1. Production and purification of aluminum Aluminum is obtained by extracting alumina from bauxite and then electrolysis in molten cryolite. The purity is generally above 99%. However, aluminum with such purity can not be used as raw material for producing aluminum target. The first and most important requirement for aluminum target is high purity. The high purity aluminum used for aluminum target is through segregation, three-layer electrolysis or combined zone smelting The price of the product is much higher than that of industrial pure aluminum 99.7, and the highest purity in China is about 99.9999% (6N).

2. Deformation treatment of aluminum target: with high purity aluminum ingot as raw material, forging, rolling and heat treatment are carried out on the raw material to make the grains in the aluminum ingot smaller and the density increased, so as to meet the requirements of aluminum target for sputtering.

3. The high-purity aluminum material after deformation treatment is machined. The aluminum target requires high precision and high surface quality. It can be machined into the target size required by the vacuum coating machine. The aluminum target and the coating machine are mostly connected by threads.