Precast furnace pipe insulation

摘要

A precast reinforced insulating member and a method of manufacturing same. The reinforced insulating member is used for covering a furnace pipe or the like and comprises a body of insulating material, a plurality of reinforcing coil members and weldable lugs secured at each end of the reinforcing coil members. The body of insulating material has an arcuate shaped inner surface adapted to extend in intimate contact with the surface of a furnace tube in use and a pair of transverse side faces. The reinforcing coil members are embedded in the body and extend circumferentially thereof at longitudinally spaced intervals along the length of the body. Each of the coil members has oppositely disposed ends thereof disposed at adjacent side faces of the body. Passages open through the body between the inner and outer surfaces thereof adjacent each end of each reinforcing coil member. The weldable lugs are secured to each end of the reinforcing coil member. The method of manufacturing the precast reinforcing insulating member includes the steps of securing a pair of weldable lugs to opposite ends of a plurality of reinforcing coil members, extending the coil members about a convex arcuate section of a first component of a mould and releasably securing the weldable lugs with respect to the first component in an extended position, enclosing the coil members by means of a second mould component to form mould cavity between the first and second mould components and casting reinforcing insulating material into the mould cavity to form a body of insulating material encasing the reinforcing coil members and allowing the cast material to set and moving the precast reinforcing member from the mould.