The types and functions of high temperature adhesives

High temperature adhesives are a type of bonding material that can maintain excellent adhesion at high temperatures. They can be used to connect refractory bricks with each other, for attaching lightweight insulation boards, and as a coating material for harsh inner linings.

High temperature adhesives are made by bonding refractory aggregates, powders, silicon carbide, etc. together according to different fine powder mesh sizes to form various slurry materials, which can be applied or bonded. After sintering, ceramic phase and high-viscosity glass phase can be formed, which endows the inner lining material with a strong bonding force and superior high-temperature strength. Moreover, it can prevent high-temperature gas flow from scouring, wearing and eroding in cases of sudden and rapid heating.

The types of high-temperature binders include: water glass, phosphoric acid, aluminum phosphate, magnesium phosphate, silica sol, aluminum sol, sulfate, etc.

Different types have different uses and can be applied to the masonry, repair and coating of inner linings in blast furnaces, hot blast stoves, converters, ladles, continuous casting tundishes and other equipment in the metallurgical industry. It can also be used for the connection of refractory bricks in the lining of rotary kilns and for bonding in heat protection systems. High temperature adhesive is a kind of high temperature of high temperature industrial glue, its role is far more than common refractory mortar and bonding material, but also directly in the high temperature coating and components used in demanding part of the performance limit. Because there are many different types of high-temperature adhesives, the selection of the appropriate one requires comprehensive consideration. Temperature, atmosphere, thermal shock, and the physical and chemical compatibility of the bonded materials are also very important.

In conclusion, it is the most scientific to select the high-bond binder suitable for the furnace lining material based on different actual situations, and not to make a decision solely based on the price. Choosing the appropriate one can not only extend the service life but also reduce costs, enabling the adhesive to play its due role.