Aggressive coatings provide grip for assembling oil field pipe and for other gripping or torque-transmission applications. Special coated "tires" provide traction for pipe inspection robots operating under slippery conditions.
The most basic Oliver coating is made up of random-shaped "grits" of tungsten-carbide, and is available in many grits sizes. The crushed grit sizes are similar to the grit sizes you are familiar with for sandpaper, such as #23, #36, #46, etc. While the crushed grit coatings do not offer as great of cutting efficiency as some other Oliver coatings, they are excellent for punishing applications such as grinding of fiberglass, soft ceramics, and some types of stone. They also work well for many gripping or drive (traction) applications. Unlike sandpaper, the grits are permanently brazed onto a steel surface for long life.
Oliver Corporation announces a new patented armoring for many popular Oliver products. The "MCM" armoring consists of a layer of precisely pre-formed teeth of tungsten-carbide, which are brazed permanently to the body of a tool (i.e. wheels, routers, etc). The major advantages of the new "MCM" armoring are its excellent uniformity, its open structure, and its wear resistance.
