Reciprocating Screw Machine Essay by The Research Group

Reciprocating Screw Machine
An analysis of the principles and techniques of a hydraulic system for injection molding of thermoplastics including advantages and disadvantages. With diagrams.
# 20281 | 2,250 words | 3 sources | 1993 | US
Published on Mar 18, 2003 in Computer and Technology (Technology) , Engineering (General)


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From the Paper:

"Background
Injection molding is a processing technique which converts thermoplastic and thermosetting materials into a variety of products. Approximately 25% of the 13 billion pounds of thermoplastics sold in the United States in 1971 were injection molded (Rubin 1).


Injection molding equipment may be configured in a wide variety of options. Selection of the specific type of equipment is determined by the requirements of the molding job and by the degree of versatility desired. Each type of injection unit and its associated clamping unit has its own specific advantages and limitations. The current trend is toward reciprocating screw and two-stage screw pre-plasticizer equipment (Grandilli 34). This is largely because of increased capacity and versatility when..."

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