Alumina hollow spheres and their products are a new type of high-temperature thermal insulation refractory material. It has high strength, good chemical stability, light bulk density, and a large number of closed pores. It is widely used in petroleum, chemical, ceramics, and high-temperature and ultra-high temperature for national defense scientific research. On thermal equipment.

In the entire chain of the industrial ceramic chain, the position of the alumina ceramic rod is relatively special, and it is also called the precision ceramic rod. Because in the actual production process, it has very strong technical strength and high standard requirements, which represents the highest level of progress and development of the industrial ceramic industry. In production practice, alumina ceramic rods have launched high-quality products. Creating first-class products to meet the actual needs of modern production is also a basis for development.

The first is alumina ceramics, because alumina ceramics have good mechanical strength, conductivity and high temperature resistance. However, when cleaning alumina ceramics, you must choose the ultrasonic cleaning method, and alumina ceramics​ actually belong to The most widely used ceramic is mainly because of its superior performance, and its application in the current market is becoming more and more extensive. It can not only effectively meet the daily use, but also meet some special needs.

1.The first is creep. At high temperature, when the structure of alumina ceramics is subjected to external force, due to the increase of time, plastic deformation will occur continuously and slowly, so we can call it creep. When the structural parts of alumina ceramics creep, no matter it is related to stress or temperature. When the stress increases, or the temperature continues to rise, the rate of creep will continue to increase.

As an important part of chemical instruments, crucibles are liquids for melting and refining metals, as well as for solid-liquid heating and reaction vessels. It is the basis to ensure the smooth progress of chemical reactions. Historically, crucibles were originally made of clay, and one of the earliest uses of platinum was also to make crucibles. But with the development of preparation technology, crucibles can now be made of any material that can melt or change its contents.​

Because alumina ceramic has many distinctive properties, it can be made into many different products. For example, because of its high mechanical strength, it can be used as a mechanical structural part, and with its high resistivity and electrical insulation properties With good advantages, alumina ceramic has become an ideal material for products such as substrates, tube sockets, and circuit casings.

Due to the relatively large increase in the coefficient of thermal expansion, the thermal shock stability is reduced. It can be used to manufacture insulating ceramic parts for ultra-high frequency and high-power electric vacuum devices, as well as ceramic shells and various ceramic substrates for vacuum capacitors.

External force: A major factor in the wear of alumina ceramics is the strong external force. Generally, it is caused by impact force and pressure during operation. It is worn or broken due to strong external force. This is unfavorable for alumina ceramics. We should try our best to avoid collisions with objects during operation to minimize the damage.

Alumina crucible is also called corundum crucible. The shape is mainly cylindrical, conical, square, etc. The alumina crucible has high purity and contains more than 99% AL2O3. 99% alumina material is used to make high temperature crucibles. It has good chemical resistance and temperature resistance, and can be used for a long time. At 1650°C, it can also be used at temperatures up to 1800°C. But only for short-term use.

Alumina ceramics is an industrial ceramic material that uses alumina as the main material and is manufactured through a specific process. Because alumina ceramics far outperform traditional metal materials in terms of conductivity, high temperature resistance and mechanical strength, they are popular and recognized. Therefore, industrial alumina ceramics are mainly used in thick film integrated circuits.