Plastic Blow Molding Handbook

ISBN-13: 9789401169905 / Angielski / Miękka / 2012 / 560 str.

N. C. Lee

Opis

Over the years, numerous handbooks and design guides on the subject of plastics have been published. None of these dealt in any depth with the subject of this handbook-blow molding. The recent growth of blow molding as an economically feasible process has been rapid in many areas. This growth, coupled with the lack of technical publications relating to blow molding, prompted the Board of Directors of the Blow Molding Division of the Society of Plastic Engineers to undertake the assimilation of available information and the editing of this milestone publication. We believe that this Plastic Blow Molding Handbook will provide the reader with a greater understanding of the unique process characteristics of blow molding, enable the reader to apply proven techniques in developing new products and applications for blow molding, and will serve as a valuable reference for all who are interested in the plastics industry. Our thanks are heartily extended to the various authors for their con tributions to this pioneering effort in blow molding. J. H. Moran Chairman Blow Molding Division Society of Plastic Engineers xi Preface The blow molding of plastic articles has in the past had an aura of the mystic around it. As a result, little comprehensive work on the subject has been published. Advances in the technology of polymeric materials, machine controls, computer science, and management techniques have made it nec essary to correct the myths and magic."

Spis treści

1. What Is Blow Molding?.- History of the Early Blow Molding Industry.- Important Dates in the History of Blow Molding.- Section One. Processes and Equipment.- 2. Extrusion Blow Molding.- Blow Molding Markets.- Processes and Equipment.- Controlling Wall Distribution.- Moving Section Molds.- Blow Molding Applications and Resins.- 3. Injection Blow Molding.- Process.- Tooling.- Injection Blow vs. Extrusion Blow.- The Future.- 4. Stretch Blow Molding.- Processes and Machines.- Two-stage and Single-stage Processes Compared.- Orientation.- Preform Designing.- Extrusion Stretch Blow Molding.- Injection Orientation Blow Molding.- 5. Coextrusion Blow Molding.- Coextruded Structures.- Materials.- Commercial Coextruded Structures.- Product Design.- Coextrusion Equipment.- Process.- Quality Control.- 6. Other Blow Molding Processes.- Neck Ring Process.- Drape Process.- Dip/Displacement Processes.- Section Two. Auxiliary Processes and Equipment.- 7. Auxiliary and Materials Handling Equipment.- Materials Handling.- Water Systems.- Grinder and Regrind Use.- Post-molding Part Handling.- 8. Reclaiming Plastic Blow Molding Scrap.- Granulation Systems.- Granulator Infeed and Evacuation Systems.- 9. Mold Temperature Control.- Mold Construction.- Cooling Calculations.- Temperature Effects.- Control Methods.- Resin Mold Temperatures.- 10. Postmolding Equipment.- Parts Handling.- Finish Machining.- Trimming and Deflashing.- Robotics.- 11. Decoration Equipment and Processes.- Surface Wetting, Adhesion, and Coating Leveling.- Surface Treatment.- Spray Painting.- Screen Printing.- Flexographic Printing.- Dry Offset Printing.- Pad Printing.- Hot Transfer Processes.- Labels and Decals.- In-mold Labeling.- Section Three. Plant Operation.- 12. Variables Affecting the Blow Molding Process.- Machine Setup.- Resin.- Molds.- 13. CIM in Extrusion Blow Molding.- Elements of the CIM Program.- Hardware/Software Overview.- Process Control with SPC.- Automated Quality Control with SQC.- Computer-aided Response Program.- Computer-aided Equipment Maintenance.- Production Control with MIS-Qualified Data.- Does CIM Pay?.- 14. Blow Molding Quality Control.- Equipment Capabilities.- Operator Tests.- Blow Molded Container Test Methods.- Quality Control Acceptance Sampling Plan.- 15. Safety.- Responsibility.- Identifying Hazards.- Safety Rules.- Legal Requirements.- Section Four. Plastic Blow Molding Materials.- 16. Materials Review.- Polymer Principles.- Molecular Weight.- Molecular Arrangement.- Role of Rheology in Processing.- Additives.- Requirements for Blow Molding Materials.- Materials for Blow Molding.- 17. Polyethylenes and Polypropylenes.- Polyethylene.- Polypropylene.- 18. Polyesters.- Polyesters.- 19. Polyvinylchloride.- Properties.- Processing.- 20. Engineering Plastics.- ABS: Acrylonitrite-Butadiene-Styrene.- PPE: Polyphenylene Ether.- Other Materials.- Section Five. Product Design.- 21. Designing Products for Blow Molding.- Basic Design Factors.- Design Considerations.- Special Considerations for Bottles.- Shape-Stiffness Relationships.- Predicting Performance.- 22. Computer/Container Preform Design.- Systems and Methods.- Implemented CAE Design Systems.- Computer-aided Engineering at the Merchant Convertors.- Conclusions.- Section Six. Mold Design and Engineering.- 23. Extrusion Blow Molds.- Materials for Construction.- Mold Cooling.- Cutting and Welding the Parison.- Mold Cavity.- Ancillary Elements.- Moving Section Molds.- 24. Injection Blow Molds.- Mold Construction.- 25. General Mold Buying Practices.- Request for Quotation.- Mold Materials.- Other Areas of Concern.- Conclusion.- 26. CIM for Plastic Part Manufacturing and Mold Design.- Data Sharing.- Interfaces.- Process Planning.- Job Summary and Analysis.- Appendix: Mold Maintenance Program for PVC, PET, and PE Container Molds.- Max Suit.