Zirconia beads for sale|Zirconia beads price

Zirconia beads, also known as zirconia grinding balls, zirconia ceramic balls, zirconia beads, ultra-fine grinding media, zirconia beads, zirconia grinding balls.

Advantages of Zirconia beads:

  • High density
  • High hardness and good toughness












Frequently Asked Questions

Sand mill is also called bead mill. A type of grinding and dispersing equipment for solid-liquid phase dispersion of powdery materials and liquid materials. As the grinding medium, a sand mill was initially used, so it was called a sand mill; later, glass beads were used, so it was also called a bead mill. The grinding media currently used are sand grains with rounded corners, beads made of various glass or wear-resistant materials, steel balls, and steel shavings. This kind of wet ultrafine grinding equipment is widely used in the dispersion and grinding of pigments in the ink production process.

A rotating shaft is axially inserted into the vertical or horizontal cylinder, and several grinding discs, rings, or pins are installed radially on the rotating shaft. The cylinder is filled with grinding media with a particle size of 0.6-2mm. The simplified version is equipped with a jacket with cooling water in the middle to absorb and dissipate the heat generated during the grinding and dispersing process. The material is pumped into the barrel, together with the grinding medium, it is strongly stirred by the high-speed rotating grinding disc, and it is thrown along the disc to the wall of the cylinder and back again. The slurry flow reciprocates between the discs so that the solid material is gradually evenly dispersed in the liquid material. middle. The method of unloading varies with the viscosity of the material. Generally, the suspension can be used to flow out through a screen with slit holes, and the width of the holes is 1/2-1/3 of the grinding medium. The bead mill is a device that uses hard and wear-resistant zirconium beads, glass beads, etc. to rotate in a closed cavity to grind pigments.

Different types of ink used bead mills in different structures

Intaglio ink production generally uses pin rods (5-50 liters) or disc bead mills (10-100 liters).

Rotary offset printing inks generally use vertical rod type (5—130 liters) or horizontal disc type bead mills (60 to 500 liters), while the production of ultra-high viscosity sheet-fed inks often uses high energy density cone bead mills or three roll mills.

Inkjet inks (inks and pigment solvent-based inks) generally use high-energy-density pin-type (horizontal or vertical) bead mills and turbo-centrifugal nano-bead mills.

The new bead mill is the main grinding and dispersing equipment in the ink production process. The bead mill is a fully enclosed grinding equipment with automatic feeding, automatic temperature, and pressure control devices, and can carry out continuous production operations.

When the bead mill is running, the rotor agitates the meson (beads) to move at a high speed, and the high-speed running medium and the grinding cavity plays a role of dispersion through impact, friction, and shear. The vertical bead mill is a fully enclosed type, which can continuously grind and disperse granular and non-granular solid materials in liquid.

The structure and characteristics of the bead mill are:

①For grinding different varieties, the computer can input the pump flow rate, heating time, grinding chamber pressure, material temperature, and other technical data in advance according to the characteristics of the variety, and then the computer can automatically control it according to the input program.

②The annular groove on the stator can meet the different requirements of the product, and the high-precision special isolation groove can be used for the special viscosity.

③The temperature, pressure, feed pump flow rate of the rotor and stator are automatically displayed, and there are protection devices such as temperature and pressure.

④The grinding efficiency and dispersion degree can be obtained by adjusting the flow rate of the feed pump and the filling amount of the beads.

⑤Due to the use of special and latest technical materials, the grinding area and the isolation area are particularly wear-resistant, and will not affect the hue of the material.

⑥Bead mills usually have safety self-locking and alarm devices, and some faults can be automatically eliminated.

Hot sale bead mill

Technical Parameter

Guidelines For Zirconia beads

Zirconia beads, also known as zirconia grinding balls, zirconia ceramic balls, zirconia beads, ultra-fine grinding media, zirconia beads, zirconia grinding balls.

Characteristics of zirconia beads

Compared with other ceramic grinding media, zirconia beads have three outstanding characteristics: first, high density; Second, it has high hardness; Third, good toughness. Although the purchase cost is relatively large, the comprehensive use cost is very advantageous, especially suitable for the occasions requiring low impurities.

  1. High density

First of all, the density of zirconia beads is large, so the ratio is large, the impact force is large, and the crushing energy is large. Under the same conditions, the grinding time can be greatly reduced, making the material grinding more efficient.

  1. High hardness and good toughness

1.The hardness of zirconia ceramic is about 12-14gpa, the strength is up to 800-1000mpa, and the fracture toughness is up to 10MPa

2. Therefore, zirconia beads have high crushing strength and are not easy to be damaged, and their extremely low wear can significantly reduce the introduction of impurities into the ground material. So it is very suitable for sanding mill, high-speed vibration mill and other equipment, especially in some areas sensitive to impurities. Less broken beads and wear, no need to replenish frequently, so the comprehensive use cost is relatively low.

Preparation of zirconia beads

The preparation methods of zirconia beads mainly include pressing, rolling and dropping.

  1. Press forming

This is a common forming method for large-size zirconia beads, mainly including dry pressing and isostatic pressing.

Dry pressing has the advantages of simple and convenient operation, less investment in technology and capital. However, due to the uneven pressure distribution, the internal distribution of the blank is inconsistent, which affects the comprehensive performance of the product. In order to improve the density of the blank, the method of increasing the pressure is often used in the actual production. However, the higher the pressure is, the better. When the pressure exceeds the limit pressure, the density of billet will decrease, which is caused by spalling.

However, the green body formed by isostatic pressing has high strength, high density and uniformity, which can prepare high performance and high quality grinding medium balls. Therefore, two methods can be combined to produce high performance ceramic balls in industry.

  1. Roll into a ball

In addition to the cold isostatic pressing process, rolling ball is also an important forming method of ceramic ball. This method has the characteristics of production equipment, raw materials, simple operation, good sphericity and easy sintering. Although the strength of the ball is not as good as that of cold isostatic pressure, the preparation cost is low, and various sizes of balls in the range of 0.1mm-60mm can be produced according to the requirements.

  1. Droplet balling

For small size zirconia beads (0.05mm to 0.05mm), the green ceramic beads can be formed by titration. The zirconia ceramic beads produced by titration method can be sintered at low temperature without internal pores, and have high density, high strength, high toughness, low wear and other properties. It is suitable for the dispersion and grinding of electrode materials, multilayer ceramic capacitors, paints, coatings and other high-performance materials.

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