Application and Production Process of Alumina Ceramics

Alumina ceramics are used in many industrial production occasions, which fully shows that alumina ceramics have many superior properties compared with other materials, so they will be very popular in many industries.

Alumina ceramics are used in many industrial production occasions, which fully shows that alumina ceramics have many superior properties compared with other materials, so they will be very popular in many industries.

So what are the application scenarios of alumina ceramics? How is it produced?

At present, alumina ceramic can be mainly used in the protective tube and insulated tube of thermocouple thermometer of temperature measuring instrument; at the same time, it can also be used in the furnace tube of industrial resistance furnace, experimental electric furnace, and heat treatment furnace.

In addition, chemical analysis of iron and steel carbon tube and sulfur tubes, as well as other high temperature, acid, and alkali corrosion resistant insulating instrument components should use alumina ceramics as the basic parts.

Alumina ceramics have been used in many industries because of their strong mechanical strength, thermal shock resistance, good thermal conductivity, insulation, and high softening temperature.

The production process of alumina ceramics is generally divided into three main steps, and every link must be done well in order to ensure its quality.

The first is the preparation of ceramic powder as raw materials. If you manufacture general-purpose ceramic parts, there is ready-made spray-dried granulation powder on the market; if you need to control the formula of the material, you need to buy ball mills and balls and spray dryers.

After having the raw material, we can begin to press the molding, for the flake products less than 2mm, we can consider using the method of gelation molding, and for the ceramic parts larger than 2mm, we can consider using the press pressing method to form.

The last is sintering and machining. If a large number of sintered alumina ceramics can be continuously produced in a tunnel kiln; and machining is mainly determined according to the complexity of the product, some ceramics do not need to be processed, just mold forming can be sold directly.