Bodycote Hot Isostatic Pressing

THE SHERAPLEX PROCESS IS A DUPLEX SYSTEM WHICH UTILISES THE EXCELLENT SACRIFICIAL CORROSION PROTECTION AFFORDED BY THE SHERARDIZING PROCESS COMBINED WITH AN ORGANIC BARRIER LAYER.

The characteristic matt textured surface of the Sherardizing also provides an excellent key to the organic barrier layer enhancing the performance of both processes.

The first element of the Sheraplex system, Sherardizing, is a diffusion process in which articles are heated in the presence of Zinc Dust. The process is normally carried out in a slowly rotating closed container at temperatures ranging from 320-500 degrees Centigrade.

The resultant zinc/iron alloyed coating is subsequently zinc phosphated resulting in a clean, passivated, matt grey surface. The coating closely follows the contours of the base material and uniform coatings are produced on articles including those of intricate shapes.

The second element to the duplex coating is an organic barrier layer. Applied by either a dip/spin or spray technique, the layer is subsequently stoved at 200 degrees Centigrade resulting in a uniform, complete coverage coating which allows intricate shaped and precision machined components to be treated.

MAIN BENEFITS

Long Term Environmental Protection

Coating deposits 35-60 microns

Salt Spray Resistance 1000 hours - 25 Microns of Zinc

High Degree of Sacrificial Protection

Repeatable Torque Values >0.14

No Hydrogen Embrittlement

For further information please visit the Sheraplex website.