Preparation process of alumina ceramic ball

1. Flour

The main raw material of alumina ceramic ball is α alumina powder. Just as the finished cement needs to be finished by grinding clinker with a tube mill, we also need a ball mill to grind this alumina powder to the fineness we want in production. The difference is that the cement tube mill is a continuous ball mill, dry grinding. After wet grinding, the slurry produced will be sent to the spray tower through the mud tank and the entire feeding system.

2. Forming

At present, the two main forming processes of alumina ceramic balls are machine pressing and rolling.

Let me talk about the machine suppressing the ball. Alumina ceramic balls have an obvious indentation. This is a huge difference in the appearance of a suppressed ball and a rolled ball! In the production of pressed balls, the powder is formed by high-pressure compression in a rubber mold. The rubber mold is divided into two semicircular shapes. During pressing, the joint of the edge left this indentation due to the incomplete bite.

Then roll forming. The official name of the rolling machine is called a sugar coating machine. This equipment began to be widely used in pharmaceutical, chemical, food, research institutes, hospitals for sugar coating, polishing and rolling of tablets and pills, and it can also be used in scientific research units to trial-produce new drugs. At this time, I believe someone will ask: Why are there two forming processes? What is the difference between them?

The reason why two processes are used to process alumina ceramic balls is determined by their characteristics. Relatively speaking, rolling balls employ more people, occupy a relatively large area, and have a relatively low output. Especially for the production of ceramic balls with a diameter of 40-80mm, if the rolling process is used, it takes too long and the efficiency is too low. Therefore, when manufacturers usually produce ceramic balls smaller than 30mm, such as 25mm, 20mm, 17mm, 15mm, 13mm, etc., they basically use rolling ball technology. Therefore, for 30mm and above, it is known to use the press ball process.