How do silicon carbide abrasives compare to aluminum oxide abrasives?

Silicon carbide abrasives are harder and sharper than aluminum oxide abrasives, making them more aggressive and faster cutting. However, they are also more brittle, which can lead to faster breakdown and shorter abrasive life.

What are the different grit sizes of silicon carbide abrasives?

Grit sizes for silicon carbide abrasives range from coarse (24 grit) to ultrafine (1200 grit) and are used for different applications, from rapid material removal to precision polishing.

How do I choose the right silicon carbide abrasive for my application?

To choose the right silicon carbide abrasive, consider factors like the material being worked on, the desired finish, the abrasive life, and the equipment being used. Generally, harder materials require finer grits, while softer materials can be worked with coarser grits.

흰색 융합 알루미나

흰색 융합 알루미나 (WFA) is a high purity synthetic mineral made from aluminum oxide. It is produced by melting a mixture of calcined alumina and a small amount of chromium oxide in an electric arc furnace at high temperatures. WFA has a very high degree of purity, with low levels of iron, sodium, and other impurities.

WFA is widely used in abrasive applications due to its hardness and toughness. It is commonly used in grinding wheels, sandpaper, and other abrasive products. WFA is also used in refractory materials, 도예, and as a raw material for the production of aluminum metal.

WFA is available in different grit sizes and can be used for a variety of applications depending on the desired surface finish and material removal rate. It is often preferred over brown fused alumina (BFA) due to its higher purity and toughness.

알₂영형₃: ≥99.2%
SiO₂: ≤0.1%
Fe₂O₃: ≤0.1%
NA₂영형: ≤0.1%

Particle Size

Common particle size of refractory materials: 0-1, 1-3, 3-5, 5-8mm, 100, 200, 325#
Common particle size of abrasives: 12, 14, 16, 24, 30, 36, 46, 60, 80, 100, 120, 150, 180, 200, 220, 240, 280, 325#.
Common micropowder for polishing and grinding: 400, 600, 800, 1000, 1500, 2000-6000#
The granularity of the product can be processed according to the granularity required by the user.

특징

경도: One of the key properties of White Fused Alumina is its high hardness, which ranks at 9 on the Mohs scale. This makes it an excellent abrasive material, capable of efficiently cutting and grinding various surfaces.
High Refractoriness: White Fused Alumina has a high refractoriness, meaning it can withstand high temperatures without melting or breaking down. This property makes it suitable for use in refractory materials and high-temperature applications.
Chemical Stability: The chemical stability of White Fused Alumina is another important property. It is resistant to most chemical reactions and does not react with acids or alkalis, making it a versatile material for various applications.
열전도율: White Fused Alumina has a low thermal conductivity, which means it does not conduct heat very effectively. This property makes it an excellent insulator, particularly in high-temperature environments.

응용 프로그램

연마제

Bonded Abrasives
White Fused Alumina is widely used in bonded abrasives, such as grinding wheels and cutting discs. Its hardness and durability make it an ideal choice for cutting and grinding various materials, including metals, 도예, and glass.
Coated Abrasives
Coated abrasives, like sandpaper and abrasive belts, also use White Fused Alumina as the abrasive material. It offers excellent cutting performance and a long service life, making it a preferred choice for many industries.

Refractory Materials

Due to its high refractoriness and low thermal conductivity, White Fused Alumina is an essential component in the production of refractory materials. These materials are used to line furnaces, kilns, and other high-temperature equipment to provide insulation and protection against heat.

Surface Treatments

White Fused Alumina is also used in surface treatment processes, such as sandblasting and shot peening. It effectively removes surface contaminants and roughens the surface to improve adhesion for coatings or paint.

Precision Casting

In the precision casting industry, White Fused Alumina is used as a mold material due to its high refractoriness and excellent chemical stability. It can withstand the high temperatures associated with the casting process and produce high-quality castings with minimal defects.

매개 변수

Physical Properties

경도	9 mohs
Grain shape	angular
녹는점	2050℃
Specific gravity	3.9-4.1 g/cm3
벌크 밀도 (depending on granular size)	1.4-2.1 g/cm3

Chemical Contents

ltem	Assurance Value	Typical Value
Al2O3	99.3% min	99.7%
Fe203	0.1% max	0.05%
Na20	0.4% max	0.16%
sio2	0.15% max	0.02%

FAQ

20 톤

탄화규소 연마재는 산화알루미늄 연마재보다 단단하고 날카롭습니다., 더욱 공격적이고 빠른 절단을 가능하게 합니다.. 하지만, 그들은 또한 더 부서지기 쉽다, 이로 인해 파손이 빨라지고 연마 수명이 단축될 수 있습니다..

실리콘 카바이드 연마재의 입자 크기는 거친 것부터 다양합니다. (24 모래) 초미세화하다 (1200 모래) 그리고 다양한 용도로 사용됩니다, 신속한 소재 제거부터 정밀 연마까지.

올바른 탄화규소 연마재를 선택하려면, 작업 중인 자료와 같은 요소를 고려하십시오., 원하는 마무리, 거친 삶, 그리고 사용하는 장비. 일반적으로, 더 단단한 재료에는 더 미세한 입자가 필요합니다, 부드러운 재료는 거친 입자로 작업할 수 있습니다..

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