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PVC Bendit was designed in late 2010 to early 2011 as a way to bend longer sections of pipe than were possible with other methods. The inventor, Victor Johnson of Manitou Springs, Colorado, was looking for a method to bend long sticks of clear PVC to make a lighting system, and he could not find a method to efficiently bend more than two feet of pipe at a time.
Plastic bending [1] is a nonlinear behavior particular to members made of ductile materials that frequently achieve much greater ultimate bending strength than indicated by a linear elastic bending analysis. In both the plastic and elastic bending analyses of a straight beam, it is assumed that the strain distribution is linear about the ...
Hot plate welding was first used in the early 1930s for joining PVC. [1] It gained in popularity with the prevalence of polyolefins, which are difficult to adhesively bond. By the 1960s, it was among the most widely used plastic welding methods. [2] Hot plate welding was used for pipelines and appliances as well as injection moldings.
It has good chemical and heat resistance, high gloss, good antistatic properties, and is tough and rigid. It is used in applications requiring weatherability, e.g. commercial siding, outside parts of vehicles, or outdoor furniture. [4] ASA is compatible with some other plastics, namely polyvinyl chloride and polycarbonate. ASA-PVC compounds are ...
Hot gas welding, also known as hot air welding, is a plastic welding technique using heat.A specially designed heat gun, called a hot air welder, produces a jet of hot air that softens both the parts to be joined and a plastic filler rod, all of which must be of the same or a very similar plastic.
The strip consists of two strips of different metals which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass. The strips are joined together throughout their length by riveting, brazing or welding. The different expansions force the flat strip to bend one way if heated, and in the opposite ...
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A popular misconception is that all materials that bend are "weak" and those that do not are "strong". In reality, many materials that undergo large elastic and plastic deformations, such as steel, are able to absorb stresses that would cause brittle materials, such as glass, with minimal plastic deformation ranges, to break. [7]
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