What are the methods of using refractory clay?

Refractory mud is actually a kind of aluminate cement. It is very simple to use. Just add water and apply it to certain places. It has excellent hardening effect, but it will produce cracks under high temperature. In this case, you can add some refractory aggregates in an appropriate amount, and the effect will be greatly enhanced. In addition, refractory mud cannot be used together with refractory clay, otherwise the effect will be greatly reduced.

1. What is refractory cement?

Refractory cement is also called aluminate cement. Aluminate cement is a hydraulic cementitious material made from bauxite and limestone, which is calcined to produce a clinker with calcium aluminate as the main component and an alumina content of about 50%, and then ground into a raw material. Aluminate cement is usually yellow or brown, but can also be gray. The main minerals of aluminate cement are monocalcium aluminate (CaO?Al2O3, abbreviated as CA) and other aluminates, as well as a small amount of dicalcium silicate (2CaO?SiO2).

2. Refractory clay price

1. Refractory cement is a binder used in thermal kilns or wall linings.

2. This type of cement is different from other types of cement. It can still maintain a strong bond under high temperature conditions.

3. Refractory cement will produce a certain strength at room temperature, which is used to ensure the shape of the prefabricated parts after hardening.

4. In addition, refractory cement that solidifies at room temperature has some physical and chemical advantages. For example, the cement solidification process can be used to quickly release moisture from inside cement products, or to tightly reinforce the internal structure.

The price of commonly used refractory cement is generally 1,800 yuan per ton. Some users need a small amount of refractory cement for small kilns. If sold by bag, the price is generally between 100 yuan and 120 yuan per bag.

3. How to use refractory cement

1. Refractory cement is very easy to use. It can harden after adding water. Generally, no other binders are needed. You can add some refractory aggregates and powders. If only refractory cement is used, a lot of cracks will appear after high temperature. It can be used to cement various refractory aggregates (such as corundum, calcined high-alumina bauxite, etc.) to make refractory mortar or concrete, and used as lining for cement rotary kilns and other industrial kilns.

2. Precautions for refractory cement. Many people tend to confuse refractory cement with refractory clay. If refractory cement and refractory clay are used together, the use value of refractory cement will be greatly reduced, which is equivalent to mixing refractory cement and loess together. The solidification strength and grade of refractory cement will be reduced a lot. Many users of kitchen equipment use it in this way. After the furnace refractory material is made and air-dried, the material will fall off with a click of the hand. There is no strength. How can such construction last for a long time? It is recommended that workers who have been engaged in furnace construction for a long time strictly mix refractory cement and refractory clay in the construction of refractory materials.

Through the above introduction, I believe everyone has a certain understanding of the price of refractory mud. The price of refractory mud is generally fixed, but the price will be different in different regions, so you need to go to the local physical manufacturer to understand it. In addition, when using refractory mud, the methods and precautions should be understood in advance, and then, start using refractory mud.