Plastics in Engineering |
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Page 272
... preform outside of the quality of the mold- ing material , is the size of the piece and the pressure applied . Lack of adequate density is manifested by preforms which will crumble easily . This may be due to insufficient material fed ...
... preform outside of the quality of the mold- ing material , is the size of the piece and the pressure applied . Lack of adequate density is manifested by preforms which will crumble easily . This may be due to insufficient material fed ...
Page 273
... preforms available . Complicated shapes are avoided be- cause they represent extra mold expense , and the shapes of preforms are confined to relatively simple forms . Volumetric Loading - Volumetric determinations of mold- ing charge ...
... preforms available . Complicated shapes are avoided be- cause they represent extra mold expense , and the shapes of preforms are confined to relatively simple forms . Volumetric Loading - Volumetric determinations of mold- ing charge ...
Page 276
... preforms of different shapes . Requirements of several jobs may be fulfilled in this manner , though individual preforms may have to be separated manually . This rapid change over from one die to another speeds up the production of odd ...
... preforms of different shapes . Requirements of several jobs may be fulfilled in this manner , though individual preforms may have to be separated manually . This rapid change over from one die to another speeds up the production of odd ...
Common terms and phrases
acid acrylic alkyd applications cast phenolics cellulose acetate cellulose derivatives cellulose nitrate cellulose plastics characteristics chemical chloroprene cold-molded color compounds compression molding cure degrees Cent degrees Fahr developed dielectric dielectric strength drying oils elastic employed engineering ethyl cellulose extruded fabric factor fibers fillers finish flow formaldehyde gears grades heat industry injection molding injection molding machines inserts insulating laminated phenolic plastics laminated plastics lubricant manufacturers mechanical metal methods methyl methacrylate mold cavity molded articles molded piece molded plastics molders molding compositions molding material molding operations molding pressure molecules nitrocellulose nonmetallic bearings phenolic resins physical properties plas plastic materials plate polymerization polystyrene polyvinyl polyvinyl chloride preforms prepared qualities resistance sheets shellac shrinkage solvents specimen steel stress surface coatings synthetic resins temperature tensile strength terials tests thermal thermoplastic thermoplastic materials thermosetting thickness tion transparent plastics tubes types urea plastics utility vinyl wood veneers