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Draft angle design is an important factor when designing plastic parts. Because of shrinkage of plastic material, injection molded parts have a tendency to shrink onto a core. This creates higher contact pressure on the core surface and increases friction between the core and the part, thus making ejection of the part from the mold difficult.
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TO-XX: wide range of small pin count packages often used for discrete parts like transistors or diodes. TO-3: Panel-mount with leads; TO-5: Metal can package with radial leads; TO-18: Metal can package with radial leads; TO-39; TO-46; TO-66: Similar shape to the TO-3 but smaller; TO-92: Plastic-encapsulated package with three leads
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The petrochemical industry has been trying to save itself by attempting to rapidly expand demand for plastic products worldwide (i.e. through pushbacks on plastic bans and by increasing the number of products wrapped in plastic in countries where plastic use is not already as widespread (i.e. developing nations)). [5]
Atlantis Plastics, Inc. is an American company which manufactures specialty polyethylene films and molded and extruded plastic components used in a variety of industrial and consumer applications. [1] It had 1,381 employees as of December 31, 2006. [2]
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American Skyline was a construction set sold in the late 1950s and early 1960s by Elgo Plastics/Halsam Products Company from Chicago, Illinois. [ 1 ] [ 2 ] With an American Skyline set, its owner could piece together models of high-rise city buildings.