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Wollastonite
Wollastonite is a kind of multi-purpose industrial mineral, which plays an important role in modern industry because of its unique physical and chemical properties.In the ceramic production process, the appropriate addition of wollastonite can effectively reduce the temperature required for firing, shorten the firing cycle, and achieve rapid firing at a lower temperature, thus reducing energy consumption. This addition can also enhance the mechanical strength of ceramic products, reduce the problem of cracks and deformation caused by the firing process, while improving the smoothness and brightness of the glaze, enhance the overall fastness of the body, and these combined effects help significantly improve the qualified rate of the finished product. In addition, the inclusion of wollastonite helps to prevent cracks, small cracks, damage and enamel defects that may occur during the use of porcelain, ensuring the quality and durability of ceramic products.
THE SAMPLE OF THE GOODS | WOLLASTONITE |
LOI (1025ºC) | 1.8-2.5 |
Al2O3 | 0.16 % |
SiO2 | 51-53 % |
Fe2O3 | ≤0.4 % |
CaO | 42-44 % |
MgO | 1.7-1.8% |
L * | 92.32 |
a * | 0.53 |
b * | 8.05 |
Burn After Whiteness 1200ºC | 74.8 |
1, Ceramic Industry: ceramic raw materials by adding the right amount of wollastonite, can significantly reduce the firing temperature, shorten the time of firing to achieve a fast low-temperature firing, a large number of fuel savings, significantly reduce product costs. At the same time, improve the mechanical properties of products, reduce product cracks and stripes, improve product yield.
2, Painting and Coating Industry: in the paint with wollastonite filler or emulsion, you can get high-quality bright colors of paint, and have the coating and anti-aging properties. White wollastonite is a good raw material for high-quality white paint and soft pastel paint, easy to brush, the surface of a slide, has a high resistance to weathering.
3, Rubber and Plastics Industry: rubber and plastic can be done to strengthen the filler, with the thermosetting and thermoplastic resin and mold resin model, with good thermal shock resistance and enhance stability. Filled in the epoxy resin, before plastication has low water absorption, low dielectric constant and low viscosity, good performance.
4, Other Aspects: wollastonite can also be used for steelmaking slag, welding electrode coating, ceramic mold, grinding materials and grinding wheel production, paper filling agent, the production of white cement, manufacturing special electrical ceramics and other rare minerals raw material.
1). Improve stretching intensity
As the content of silicon ashstones increases, the tensile strength is increasing. According to experimental data, the thinner the number of meters of silicon ashstones, the better the tensile strength.
2). Improve bending
Adding 30%silicon ashstones to PA, the curved strength and bending modulus are significantly improved. This is mainly due to the characteristics and rigidity of the cashmelite, which makes it obvious technical advantages in sheets, plates, film, plastic products, etc.
3). Improve stability
The contraction rate of PA and PP is about 1-2%, and after joining the mineral fiber, the contraction rate can be significantly reduced. Adding an appropriate amount of mineral fiber during the manufacturing process of precision injection plastic parts and large plastic products can effectively maintain plastic products effectively The size stability can also shorten the processing cooling cycle.
4).improve resistance
Silicon ash has a special needle -shaped structure and unique physical and mechanical properties, which can greatly enhance the friction and heat resistance of the finished product.
5). Improve thermal change temperature
Add 30%silicon ashstone, and the thermal deformation temperature increases from 105ºC to 177 ºC, an increase of up to 70ºC.
Logistics:
Q:How many years of experience in supply?
A:A long stable supplier.
Q:Do you accept customization?
A:We could like to give you suitable suggestion about Fritted according to your detail application.