Kubes Alloy Products Ltd.

United States

Suitable holes for countersunk bolts may be produced by direct plasma arc cutting using an orbital tool post, by piercing or gouging a straight hole and welding a pre-machined insert in place, or by a combination of direct drilling or gouging. The minimum recommended bolt size is 9.5mm (38″) diameter and the number and spacing required will depend upon the size and shape of the plate. The finished counter sunk hole should allow the flat headed bolt to sit approximately 4mm below the surface of the plate. It can be protected from abrasion by ‘capping’ with a suitable Triten Armalloy tubular hardfacing electrode.

The Triten overlay plate range has been developed to combat abrasion, erosion and impact at either ambient or elevated temperatures. The range comprises different hardfacing chromium or tungsten carbide alloys deposited onto a carbon steel or alloy substrate. The recommended method of cutting overlay plate is by plasma-arc, as the high chromium and carbon contents of the hardfacing overlay preclude the use of oxy-fuel and most mechanical means. The special properties of the very hard overlay alloy and a ductile substrate allows these materials to be formed and fabricated into complex shapes, including concave or convex curves. Wear resistant liners may be installed into structures using a variety of methods including plug welding, stud welding and bolting. Fabrications can be produced by conventional welding of the carbon steel substrate.