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Properties of Unshaped Refractories
  • Time:Jul 10, 2023
  • Views: 10

Unshaped refractories, also known as bulk refractories or sprayed refractories, are refractory materials supplied in the form of powder, granule or slurry, with the following properties and characteristics:

1. Application flexibility: Unshaped refractories are suitable for equipment surfaces and structural parts of various shapes and sizes. Due to its bulk or spray-on nature, it can be easily adapted to irregular surfaces, complex shapes or curved structures, providing greater construction flexibility.

2. Refractory performance: Amorphous refractory materials have good refractory performance and can withstand thermal stress and chemical erosion in high temperature environments. They are usually made with refractory aggregates and refractory binders with higher refractory temperatures to ensure stability and durability in high temperature working environments.

3. Good bonding performance: Unshaped refractory materials are usually mixed with special refractory binder and refractory aggregate, which can produce good bonding force and adhesion. This allows them to bond firmly to the substrate or lining surface to form a strong protective layer.

4. Abrasion resistance: Unshaped refractory materials have certain wear resistance and can withstand mechanical wear and the impact of granular materials. This makes them suitable for working environments where resistance to abrasion or scour is required, such as iron nozzle linings, pulverized coal pipeline linings, etc. in the metallurgical industry.

5. Corrosion resistance: Unshaped refractories have certain corrosion resistance to acid-base gases and molten metals. They resist attack from hot gases and chemicals, extending equipment life and maintaining structural integrity.

6. Construction convenience: Unshaped refractories are usually supplied in bulk during construction, which is convenient for on-site deployment and construction. For spraying materials, special equipment can be used for fast and uniform coating to improve construction efficiency.

Castables

It is important to note that the properties and characteristics of monolithic refractory materials may vary depending on their specific composition and how they are applied. When selecting and using monolithic refractory materials, the appropriate material type should be selected according to the specific application requirements and working environment to ensure that it can meet the requirements of fire resistance, erosion resistance, wear resistance, etc., and the correct construction should be carried out according to the supplier's recommendations.

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