Factory advantage

if you plan to purchase ceramic alumina balls, first you can find a ceramic alumina ball manufacturer with many years of production experience, so the quality is more reliable, second you find a direct factory and have the experience of exporting ceramic alumina balls, so the price will be more realistic, the service is more worrying, if you have the above two points you can understand our ceramic alumina ball manufacturers from China

Buying ceramic alumina ball points:

Specifications: Ceramic alumina balls have different particle sizes, often ranging from a few millimeters to tens of millimeters, such as for small laboratory reaction devices, may choose a diameter of 3-5mm; If it is a large industrial catalytic tower, it may need a large ball of 20-30mm, which can be accurately determined according to the equipment adaptation.

Purity:Purity affects performance and price, the higher the purity, the stronger the hardness and chemical stability. There are often 92%, 95%, 99% and other different purity specifications, such as fine chemical catalytic reactions, often use 99% high-purity products.

Use: If it is used as a grinding medium, pay attention to its hardness and density, and can effectively grind materials; If it is used for petrochemical catalysis, it will pay special attention to its specific surface area, pore structure and other catalytic performance indicators.

Sample test: Ask for ceramic alumina ball samples from the intended manufacturers, and test the hardness, density, wear resistance and other key performance of ceramic alumina balls, so that the fit demand can be purchased in large quantities.

How to judge the quality of ceramic alumina balls

Surface smoothness: The surface of high-quality ceramic alumina ball is smooth and smooth, without obvious pores, sand holes, cracks and other defects. Touch by hand, feel delicate and smooth; If the surface is rough and uneven, it not only affects the appearance, but also may be damaged in advance due to stress concentration during use.

Color uniformity: The color is consistent and pure ceramic alumina balls often reflect the excellent production process and the raw materials are mixed evenly. For example, high-purity white alumina balls, the whole body should be white, if there are yellow, gray patches, it is likely to suggest that the purity is not up to standard, or the firing process is biased.

Ball diameter regularity: Good alumina ball size accuracy, the same batch of ball size is almost the same, minimal deviation. Random inspection with vernier calipers, the ball diameter difference is too large, will reduce its accumulation uniformity in industrial applications (such as filling in fixed bed reactors), and then affect the use effect.

Hardness: Alumina ceramic hardness is very high, commonly used Mohs hardness measurement. High-quality ceramic alumina ball, Mohs hardness can reach about 9, can use a slightly lower hardness of the object (such as the known hardness of the standard mineral) lightly scratch the surface of the ball, observe whether there is a scratch to make a preliminary judgment. The ball with insufficient hardness is easy to wear and deform in grinding, catalysis and other working scenes, shortening the service life.

Chemical purity : With the help of professional chemical analysis means, such as X-ray fluorescence spectrometer (XRF) accurate determination of alumina purity, the higher the purity, the less impurities, corrosion resistance, chemical stability is better. High-purity ceramic alumina balls can work stably in harsh chemical environments such as strong acid and base, high temperature oxidation, and escort chemical catalysis, sewage treatment and other processes.

Corrosion resistance: The ceramic alumina ball is soaked in a specific concentration of acid (hydrochloric acid, sulfuric acid), alkali (sodium hydroxide) solution for a period of time, to observe whether the surface has corrosion pits, peeling and other phenomena, corrosion resistance is strong, the quality is more reliable, can adapt to the needs of complex chemical processes.