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High Velocity Coatings of Chrome Carbide

Peter Cameron
11th April 2007

Press Ram

A typical hard-chromed Press Ram in the Pulp and Paper industry suffers in service from corrosion, pitting and scoring from foreign material. The result is that the ram cannot hold an operating pressure and has to be pulled from service.

The ram pictured to the right has been surface treated with a thermal spray, high velocity coating of chrome carbide.

These chrome carbide coatings impart excellent corrosion resistance combined with very high hardness. The result is a coating that offers up to 5 times the life of a hard-chrome plated ram.


High velocity coating of chrome carbide

Double Acting Ram

A further example of a thermal spray, high velocity coating replacing hard-chrome on a double acting ram.

This coating was ground and superfinished to produce a mirror like surface, offering a very low co-efficient of friction and prolonged life in service.

The following list itemises other application in the Pulp and Paper and Timber Industry that the DCL Engineering Group has amassed over the years.


Coating was ground and superfinished to produce a mirror like surface

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