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Die swell is an expansion of the melt as the pressure is released, and is dependent on polymer chemistry and die design. After curing, the solid, continuous part is drawn onto a take-up roller or cut into transportable lengths, depending on the type of part. This process may vary significantly depending on the type of die and extrusion process. [1]
The process of tube bending involves using mechanical force to push stock material pipe or tubing against a die, forcing the pipe or tube to conform to the shape of the die. Often, stock tubing is held firmly in place while the end is rotated and rolled around the die.
Mesta Machinery was a leading industrial machinery manufacturer based in the Pittsburgh area town of West Homestead, Pennsylvania. It was founded in 1898 by George Mesta when he merged his machine shop with another. [2] Mesta "machines" can be found in factories throughout the world and as of 1984 had equipment in 500 steel mills. [3]
This process is the same as a regular extrusion process up until the die. There are three main types of dies used in this process: annular (or crosshead), spider, and spiral. Annular dies are the simplest, and rely on the polymer melt channeling around the entire cross section of the die before exiting the die; this can result in uneven flow.
Waterworks Shopping Mall is an outdoor super-regional shopping mall located on Freeport Road in the city limits of Pittsburgh, Pennsylvania, United States. The center opened in 1982, and features a gross leasable area of 914,638 square feet (84,972.7 m 2). It is managed by J.J. Gumberg Co. of Pittsburgh, Pennsylvania. [1]
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The first of these, named the Galleria at Pittsburgh Mills, is the 905,667-square-foot (84,139.2 m 2) indoor component of the complex which is divided into five themed neighborhoods corresponding to various Pittsburgh landmarks and cultural icons.
In the episode, a "Wall-Mart" supermarket (used as a stand-in for Walmart) is built in South Park, and the people start to get addicted to shopping from it, due to its irresistibly attractive bargains, thus leading many businesses in South Park to close down. The four boys have to fight against Wall-Mart and to find a way to stop it from taking ...
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