Amorphous refractory is an important refractory material, which is widely used in various high-temperature industrial furnaces, kilns, thermal equipment, etc. due to its excellent refractory properties and structural properties. There are many varieties of amorphous refractories, and their classification methods are also various, among which they are classified according to the types of binders, refractory aggregate varieties and construction production methods, which have great practicability and are widely used in the industry.
1. Classification according to the type of binder.
Amorphous refractories can be divided into two categories: inorganic binders and organic binders according to the type of binders. Inorganic binders include silicates, phosphates, sulfates, etc., and organic binders include resins, asphalt, etc. According to the hardening conditions, amorphous refractories can be divided into types such as hydraulic, aerodurous and hot.
2. Classified according to the variety of refractory aggregates.
Amorphous refractories can be divided into two categories: heavy aggregates and light aggregates according to the types of refractory aggregates. Heavy aggregates include siliceous, clayey, high alumina, etc., and light aggregates include perlite, vermiculite, mullite, etc. According to the different bulk density of aggregate materials, amorphous refractories can be divided into heavy amorphous refractories and light amorphous refractories.
3. Classified according to construction and production methods.
Amorphous refractories can be divided into castables, ramming materials, plastics, spray coatings, smears, projections, pressed materials, unfired bricks, prefabricated blocks, refractory mud or refractory mud according to the construction and production methods. Depending on the application, amorphous refractories can be divided into types such as refractory, refractory heat insulation, refractory alkali refractory and refractory wear resistant.
In addition, amorphous refractories can also be divided into high-temperature, medium-temperature and low-temperature types according to the use temperature, as well as types named according to specific thermal equipment or parts, such as converter magnesia refractory gunning material, ladle aluminum-magnesium refractory castable and blast furnace tap trench refractory castable.
In short, there are various classification methods for amorphous refractories, and through the understanding of their classification, we can better select and apply refractories suitable for specific needs, and provide better technical support for industrial production and engineering construction.