Mechanical Fastening of Plastics: An Engineering Handbook, 1st Edition (Hardback) book cover

Mechanical Fastening of Plastics

An Engineering Handbook, 1st Edition

By Lincoln

CRC Press

217 pages

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Hardback: 9780824770785
pub: 1984-01-03
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Table of Contents

Preface

Acknowledgements

Introduction to Plastics

Organization of the Plastic Goods Manufacturing Process

Plastics Versus Metals

A Brief Explanation of Plastics for the Fastener Engineer

Thermoplastics Versus Thermoset ( Cross-Linked_ Plastics

Thermoplastic Subgroups

Thermoset Plastics

Reaction Injection Molding and Reinforced Reaction Injection Molding Processes

Fillers

Plasticizers

References

Bibliography

Mechanical Fasteners Used in Plastics

Permanent Assemblies

The Challenge: Disassembly

Metal Thread-Forming and Thread Cutting Screws for Plastics

Need for New Screw Types

Thread-Rolling Screws Especially Designed for Use in Plastics

Only Guidance Can Be Given

References

Bibliography

Fastening Characteristics of Plastics

Stiffness in Plastics

Reinforcements: Effects on Plastics

Crystallinity in Plastics

Molecular Weight

Moisture Content

Elasticity and Resiliency in Plastics

Crazing

Annealing and Thermal Treatments

Concluding Thoughts

References

Bibliography

Generic Name Plastics

Thermoplastic Resins, crystalline

Polyolefins

High-Performance, Thermoplastic Crystalline Polymers

Vinyls

High-performance, thermoplastic Amorphous Polymers

Thermoplastic Structural Foam

Thermoset Plastics

Thermoset Foam Plastics

Trademarks Cross-referenced in Chapter 5

References

Bibliography

Tradename Plastics

Bakelite-Phenolic (Union Carbide Corporation, Specialty Chemicals and Plastics Division)

Celanex (Celanese Plastics and Specialties Company)

Celcon (Celanese Plastics and Specialties Company)

Cycolac (Marbon Division, Borg-Warner Chemicals)

Delrin ( E. I. Du Pont de Nemours and Co)

Durez (Occidental Chemical Corporation)

Fiberesin (Formerly Made by United States Gypsum)

Gafite-Gaftuf ( GAF Corporation, Engineering Plastics Department)

Genal (General Electric Company, Specialty Plastics Division)

Glaskyd (American Cyanimid Company, Organic Chemicals Division)

Glastic (Glastic Corporation)

Kralastic (Uniroyal Chemical , Division of Uniroyal, Inc.)

Lexan (General Electric Company, Specialty Plastics Division)

Merlon (Mobay Chemical Company)

Minlon (E. I. Du Pont de Nemours and Co)

Moplen (USS Novamont Inc.)

Noryl ( General Electric Company, Specialty Plastics Division)

Nylafil (Fiberfil Division, Dart Industries Inc.)

Polycarbafil (Fiberfil Division, Dart Industries Inc.)

1900 Ultrahigh Molecular Weight Polymer ( Hercules, Inc.)

Pro-Fax ( Hercules Inc.)

Profil (Fiberfil Division, Dart Industries Inc.)

Royalex (Uniroyal Chemical, Division of Uniroyal Inc.)

Rynite (E. I. Du Pont de Nemours and Co)

Ryton (Phillips Chemical Company, Plastics Technical Center)

Teflon ( E. I. Du Pont de Nemours and co)

Tenite (Eastman Chemical Products Inc., Plastics Division)

Tivar (Poly-Hi/ Menasha Corp)

Ultem (General Electric Company, Specialty Plastics Division)

Valox (General Electric Company Specialty Plastic Division)

Vaspel ( E. I. Du Pont de Nemours and Co.)

Victrex ( ICI Americas)

Vydyne ( Monsanto Company)

Zytel ( E. I. Du Pont de Nemours and Co.)

Fastening Site Design Considerations: Threaded Fasteners

Fastening site Design: Self-Threading Screws

Assembly Considerations: Self Threading Screws

Assembly Equipment: Self Threading Service

Troubleshooting Self Threading Screws

Tapping in Plastics

Reference

Bibliography

Typical Applications

Machine Screw versus Special Design Screws for Plastics

Screw Selection Affects an Automotive Assembly Line

Failure to Check Out the Fastening Site with a Laboratory

Effect of Different Molding Techniques

Obtaining a Consistent Magnitude of Torque with Small Screws

A Problem Just the Opposite of the Usual

The Importance of Correct Boss Design

When Screw Selection Is Not Thoroughly Tested

A Case Study in Structural Foam and Some Famous Last Words

Automatic Assembly Demands Close Attention to Fastener Specifications

Bibliography

The Fastener Laboratory

The Need for Reliable Laboratories in the Fastening Industry

Functions of a Fastener Laboratory

Definitions of Terms Used

Determining Optimum Hole Sizes

Laboratory Equipment in Analysis of Plastics Applications

Laboratory Study Examples

References

Power Screwdriving Equipment

Selection of the Driver Tool

Explanation of "Soft" and "Hard" Draw, Slam or Pull-Up

Screwdriver Configuration

Electric or Pneumatic Drivers?

Driving Methods for Air-Powered Portable Screwdrivers

Making the Choice of Type of Screwdriver

Operating Speeds

Accuracy

Torque Level Ranges

Torque Control and Size Selection in Plastic Applications

Manufacturers ( Portable, Air Powered Screwdrivers)

A Word About Fastener Pick-Up Methods

Bench Model Automatic Screwdrivers

References

Bibliography

Inserts and Insertion Methods

Insert Categories

In-Place Molded Inserts

Expansion Inserts

Cap Nuts

Helically Coiled Wire Thread Inserts

Ultrasonic Insertion

Summary: Insert for Frequent Disassembly Usage and Push-In Fasteners

References

Bibliography

Appendix 1 Tradenames and Manufacturers

Appendix 2 Some Questions to Ask About Fastener Application In Plastics

Appendix 3 Summary: Fastener Recomendations

index

About the Series

Mechanical Engineering

A Series of Textbooks and Reference Books

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Subject Categories

BISAC Subject Codes/Headings:
TEC021000
TECHNOLOGY & ENGINEERING / Material Science