WFA F036 for railway locomotive sanding

WFA F036 is an artificial white fused alumina abrasive sand. The particle range of WFA F036 is 0.425-0.6mm, it is suitable for high-speed rail locomotive sanding and braking.

There are several advantage of WFA F036 for this application:

1. High hardness.

During the operation of railway locomotives, there will be strong friction and impact between the wheels and the rails. High-hardness WFA F036 grain can withstand this high-intensity force. With high crush strength, it can maintain the particle shape on the surface of the rail. Then continue to play a role in increasing friction, ensuring that the locomotive has good grip during braking and starting.

2. The sand particle size is appropriate.

Usually, the diameter of the sanding tube for high-speed rail sanding is 2mm. In order to prevent the sand from being unable to blast due to sand blockage, it is required that two sand particles can pass through the sanding tube side by side. More than 65% of the particles of 36 mesh WFA are larger than 425μm, and most of the particle sizes are between 425-600μm. Therefore, it is very helpful to prevent the sand spreading device from clogging.

3. Stability advantage.

WFA abrasive grit has excellent chemical stability and thermal stability. On the one hand, WFA grain will not affect its wear resistance and volume change due to temperature changes. On the other hand, it will not react with acidic and alkaline substances to cause corrosion to the sand spreading device.

4. Environmentally friendly.

The main component of WFA F036 is fused alumina. Compared with quartz sand, it does not contain silicon dioxide and has a higher hardness. Therefore, when sprayed between the rails and wheels to play a braking role, a large amount of siliceous dust will not be generated. White corundum 36# is more in line with environmental protection requirements and is conducive to protecting the ecological environment along the railway.