| 摘要 |
A process for making an insulated metal edge guard comprises extruding plastic insulating metal material onto a flat strip of metal as the strip is pulled through an extruder, coiling the insulated strip while still in the flat, uncoiling the coiled strip at the beginning of a roll-forming apparatus and feeding the insulated strip through the roll-forming apparatus to form the strip into a desired cross sectional shape for the edge guard. The process improves the efficiency of manufacturing insulated metal edge guards and it permits various embodiments, including new and unique ones, to be created efficiently. The invention has a special utility where a range of colored edge guards must be produced in varying quantities.
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