Practical Guide to Rubber Injection Moulding.

9781847357076_Front Cover; 9781847357076_Contents; Preface; Market Leader: Introduction; 1.1 Perfection of the Process; 1.2 Historical Background; 1.2.1 Practical Considerations; Reference; Setting the Parameters: Initial Stages; 2.1 The Quality System; 2.2 Shape; 2.3 Polymer Compatibility; 2.4 Production Volume; 2.5 Start of Production; 2.6 Component Design; 2.6.1 The Enquiry Stage; 2.6.2 Finalising the Component Shape; 2.6.3 Compound Design; 2.6.3.1 Oils and Solvents; 2.6.3.2 Gases; 2.6.3.3 Water; 2.6.3.4 Temperature; 2.6.4 Engineering Requirements; 2.6.4.1 Resilience or Damping.

2.6.4.2 Fatigue ResistanceReferences; The Rubber Compound; 3.1 Specification; 3.2 Selection of Polymer; 3.3 Hardness or Modulus; 3.4 Compound Design and Cost; 3.5 Factors that Adversely Affect Processing; 3.5.1 Scorch; 3.5.2 Effect of Temperature; 3.5.3 Compound Viscosity; 3.5.4 Moisture; 3.5.5 Gel; 3.6 Mixing; 3.6.1 Weighing of Ingredients; 3.6.2 Mixing Cycles; 3.7 Compounding Ingredients; 3.7.1 Polymers; 3.7.1.1 Natural Rubber; 3.7.1.2 Synthetic Polymers; 3.7.1.3 Peptisers; 3.7.1.4 Zinc Oxide; 3.7.1.5 Stearic Acid and Activation; 3.7.1.6 Fillers; 3.7.1.7 Process Aids; 3.7.1.8 Process Oils.

3.7.1.9 Accelerators3.7.1.10 Sulfur; 3.7.1.11 Anti-ozonants; 3.7.1.12 Masterbatching of Compounds; 3.7.2 Characterisation of Materials; 3.7.3 Example Compound Formulations; 3.8 Stock Presentation; 3.9 Storage of Uncured Rubber; References; The Injection Machine; 4.1 The Parts to Understand; 4.2 The Pre-plasticising and Injection Unit; 4.3 The Press Unit; 4.3.1 Horizontal or Vertical Opening?; 4.3.2 Hydraulic or Toggle Clamp?; 4.4 Hydraulic Power; 4.4.1 Oil Cooling; 4.4.2 Clean Oil; 4.5 Heating and Cooling; 4.5.1 Platen Heating; 4.5.2 Cavity Temperature; 4.6 Control Systems; Reference.

Mould Design5.1 Sizing of Moulds; 5.2 Runner System; 5.2.1 The Sprue Bush; 5.2.2 Injection Gates; 5.3 Air Removal; 5.4 Modelling Software; 5.5 Ejector Systems; 5.6 Flashless Mouldings; 5.7 Mould Monitoring Points; 5.8 Mould Materials; References; Moulding; 6.1 Purging; 6.2 Single Cavity Tools; 6.3 Initial Process Set-up; 6.4 Problem Solving; 6.4.1 Recognition; 6.4.2 Classifying the Fault; 6.4.3 Identifying Causes; Mould Fouling, Cleaning and Management; 7.1 Mould Management; 7.2 Platen Condition; Mould Release Agents; 8.1 Sacrificial Mould Release Agents; 8.2 Internal Mould Release Agents.

8.3 Semi-permanent Mould Release Agents8.4 Method of Application; Maintenance; 9.1 Routine Matters; 9.2 Routine Maintenance; 9.3 New Job Start-up Procedures; 9.4 Reworking; Bonding of Rubber to Substrates; 10.1 Introduction; 10.2 Compound; 10.2.1 Polymer; 10.2.2 Curing System; 10.2.3 Rubber Presentation at the Press; 10.3 Inserts; 10.3.1 Condition; 10.3.2 Metal Inserts; 10.3.3 Plastic Inserts; 10.4 Insert Preparation; 10.4.1 Solvent Degreasing; 10.4.2 Aqueous Degreasing; 10.5 Surface Preparation; 10.5.1 Grit Blasting; 10.5.2 Wet Processes; 10.6 Bonding Systems.

10.6.1 Control of the Bonding Agent.

This book is aimed at potential customers and personnel in the injection moulding industry, and emphasises quality control, including working to the ISO 9001 Standard. It also highlights the need to consider the economics of operation prior to taking on new projects. Above all, the customer-manufacturer relationship is emphasised at all stages. The customer is encouraged to examine the capabilities of the manufacturer, and the manufacturer is encouraged to develop a good understanding of the exact requirements of the customer. This book is of value to all areas of a company, from those who pur.

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Includes bibliographical references and index.

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