Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1984-10-11
1987-03-31
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Assembling or joining
52506, 52408, B21D 3900, E04B 138, E04B 500
Patent
active
046531718
ABSTRACT:
A structure such as a wall of a high temperature furnace door is lined with fibrous refractory insulation material which has structural fastening devices embedded therein or interleaved between planks thereof. In one embodiment, plank-like pieces of fibrous refractory material are arranged in a stack extending edgewise with respect to the wall, and sheets of expanded metal are positioned between the refractory planks and are anchored to the wall. The interleaved stack of refractory planks and expanded metal sheets are compressed such that the metal sheets become essentially embedded within the refractory material to securely grip large surface areas of the planks to hold the refractory planks in place. In preferred practice, rods extend through slots formed in the wall and connect with the expanded metal sheets to hold the sheets of expanded metal in place after the interleaved stack has been compressed. The slots in the wall parallel the direction in which the stack is compressed so that the rods are permitted to move relative to the slots during compression of the stack. In another embodiment, the expanded metal sheets form U-shaped cages into which compressed refractory planks are forced to form modules. The modules are anchored to the wall at spaced intervals, and additional planks of refractory material are compressed between adjacent ones of the modules. In still another embodiment, reinforced structures of fibrous refractory material are formed in situ about structural reinforcing and/or fastening devices so that these devices become embedded within the surrounding fibrous refractory material and cooperate therewith to form integral structures.
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Burge David A.
Goldberg Howard N.
Nichols Steven
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