Fine Quality 60# White Aluminum Oxide /White Corundum Sand for Grinding Wheels

Product Overview

Description

Fine Quality 60# White Aluminum Oxide /White Corundum Sand for Grinding Wheels

White fused alumina is made from high quality alumina by being melted above 2000°C in the electric arc furnace. It is characterized by high purity, great self-sharpening, acid and alkali resistance, high temperature resistance and stable thermal performance.

 

Lead Time:

Available size: F20-F60, also can be customized according to customer size standards

Grits	Bulk Density	Grits	Bulk Density
F20	1.84-1.94	F40	1.76-1.86
F22	1.83-1.93	F46	1.74-1.84
F24	1.82-1.92	F54	1.72-1.82
F30	1.80-1.90	F60	1.70-1.80
F36	1.78-1.88

Chemical content (typical value)

AL2O3≥98.78

NA2O≤0.30

FE2O3≤0.10

 

 

Yize Technology New Abrasives

Yize Technology adopts a multiple-combination process for the surface treatment of abrasives to optimize the performance of abrasives at the highest level. First, white corundum abrasive with high quality is processed by alkaline treatment, soak in alkaline solution, then wash and dry. Then apply ceramic liquid on the surface of the abrasive, and undergo high-temperature sintering treatment.

Alkaline treatment uses alkali to have a certain corrosive ability on abrasives to increase the roughness of the abrasive surface and at the same time increase the capillary action on the surface of the abrasive particles, which is beneficial to the bonding effect of the abrasive and the binder, so that the abrasive particles can be coated. The clothing layer is not easy to fall off, and the effect of the coating layer is improved, which ultimately leads to the improvement of the grinding effect and durability of the grinding wheel.

The ceramic coating treatment makes the abrasive surface covered with a thin layer of ceramic material to facilitate the bonding between the abrasive and the binder, thereby improving the durability of the grinding wheel.

After high-temperature calcination, the first is that the fine cracks formed by the multiple impacts of the abrasive during the granulation process are sintered at high temperature, which increases the strength of the single particle due to the sintering of the abrasive during the manufacturing process. The second is to increase the capillary action of the abrasive, increase the hydrophilicity of the abrasive, and improve the adsorption of the abrasive particles to the binder, so that the abrasive particles and the binder can have a strong adhesion.

Finally, the abrasive is dry-cleaned to make the surface of the abrasive more clean. After the ceramic treatment, the abrasive has a neutral pH, and the bond strength between the abrasive and the resin bond is higher.

 

SN-1

SN-1 Abrasive is a revolutionary new-generation aluminum oxide abrasive developed by Yize. It's polycrystalline structure whose main body is Al2O3. In terms of SN-1 Abrasive has ultra-strong material removal capacity, and achieves best effect in heavy grinding. Compared with traditional aluminum oxide abrasives, SN-1 Abrasive have advantages of high abrasiveness ratio, good surface finish, and high grinding efficiency. Generally, mixed with white fused alumina(or other alumina abrasives) in certain proportion, SN-1 Abrasive can be made into grinding wheels according to different grinding requirements, to achieve the best combination of grinding effects and grinding wheel costs.

 

 

SN-2

SN-2 abrasive is improved secondary-generation aluminum oxide abrasive developed by Yize. It's a specially designed structure (special chemical composition and micro structure) that has terrific grinding effects for high hardness materials. Different content of SN-2 achieves different application effect.

 

 

For Yize's two different types of abrasives, the basic chemical componets and miceo structure are similar, the difference lies in self-sharpening performance, SN-2 is improved by 25% compared with SN-1. SN-1 is more durable, and SN-2 has better effect in high speed low grinding force, or application that has higher demand for sharpening. Despite their different application, both types of abrasives are suitable for ceramic substrate and resin substrate abrasives products. 

 

CN-1

 

CN-2

 

 

TD-1

 

TD-2

 

Application Fields:

It is mainly used in making coated abrasives and bonded abrasives grinding wheels, and deeply cutting, large feeding and forming grinding. In addition, compared with synthetic diamond and CBN, ceramic corundum abrasive grains have better versatility, which can be used for not only dry or wet grinding with water or oil cooling, but also for grinding black and non-ferrous metals, and effectively applied to grinding special materials such as stainless steel and heat-resistant alloy.

Characteristics of grinding tools made of Ceramic Abrasives

Sharp grains, good cutting ability, and high grinding efficiency. Ability to efficient grinding with deep cutting and roughing feed.

Good toughness, low abrasion, and good grinding wheel shape retention, when used for precision grinding and shaping grinding, it is easier to obtain higher dimensional accuracy.

Grinding wheel made of Ceramic Abrasive with has a Higher durability and longer life, which is 5~10 times than the grinding wheel made of common corundum. Low frequency of grinding wheel replacement, which reduce s the auxiliary processing time and downtime, so that it is advantageous to use automatic machine tool by numerical control, for realizing automatic production.

Grinding wheel made of Ceramic Abrasive with good self-sharp ability and low probability of plug can maintain the stability of the grinding performance  ,which reduces the amount of correction (1/3 of common abrasive for general) and the number of amendments in order to improve production efficiency.

There is no need of special grinding equipment and correction device, no special requirement of CBN and diamond in grinding equipment and its correction, no special requirement of grinding fluid, which is easier to promote and extensive use. 

The abrasive tools made of Ceramic Abrasive with new properties have excellent self-sharp ability, sharp grinding edge, which is suitable for efficient grinding with a large amount of feed. The high toughness guarantees excellent shape retention capacity, and  the service life is several times more than common corundum abrasives, which is a selected raw material of the manufacture of high-grade abrasive products.

 

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