Thermit Welding

INTRODUCTION

Strong wire connections are important for all cathodic protection systems and TECTOWELD connection are an accepted method for attaching cathodic protection leads to pipes, tanks, or any other buried metallic structure. TECTOWELD connections are made with a semi-permanent graphite mold, which holds the conductors to be welded. Weld metal (a mixture of copper oxide and aluminum) is dumped into the top of the mold. The mold is covered and the weld metal ignited. The exothermic reaction produces molten copper, which produces a permanent, high conductivity connection.

THERMIT WELD CAPS are the complete weld connection sealers. They are designed to fit any melded connection and are installed simply by pressing firmly into place.  THERMIT WELD CAPS are supplied complete with an elastomeric mastic having exceptional adhesive properties making it ready for immediate installation. The compound is firm enough to resist flow at all normal operating temperatures, but soft enough to allow easy molding around welded areas.

TECTOWELD  MOLDS

• Type SHEA for tap conductor to top of horizontal steel pipe or flat surface
• Tape SVES for tap conductor to vertical steel
  pipe or flat surface
• Type SHTA for through conductor to top of horizontal steel pipe or flat surface
• Type SVTA for through conductor to top of vertical steel pipe or flat surface

TECTOWELD  METALS

weld metal is a mixture of copper oxide and aluminum, packaged by size in plastic tubes. Each tube contains the starting powder at the bottom of the plastic tube, with the weld metal on top.

THERMIT WELD CAPS