INJECTION MOULDING TRAINING - DEFECT ANALYSIS OF THE PRODUCTS DURATION: 2 DAYS; TIME SCHEDULE Time - 9:00am to 5:00pm Break - 10:15am to 10.30am and 3:15pm to 3:30pm Lunch - 1:00pm to 2:00pm BENEFITS Upon completion of this program, participants will be able to: Provide participants with the appropriate techniques and procedures needed Identify and effectively solve problems arising in the injection moulding process Identify relating to processing, poor tooling design and material defects Effective troubleshooting methods and techniques Provide with the most logical and practical means to rectify problems KEY CONTENT MODULE 1 – OVERVIEW OF MACHINES MODULE 2 – WHAT CAUSES DEFECTS Root Cause Analysis Sources Of Problems o Process /Machine o Plastic Material o Mould /Tool Design o Product Design o Management Philosophy o Working Environment o Working Experience MODULE 3 – PLASTIC FLOW Basic Fluid Flows & Flow Phenomena o Basic Flows o Jetting o Transient Flow o Barrel Fluid Flow o Cavity Flow o Hesitation Flow
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PROFESSIONAL TRAINING MADE EASY
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MODULE 4 – IMPORTANT POLYMER PROPERTIES Properties Of Bulk Materials o Bulk Density o Coefficient Of Friction o Particle Size And Shape Melt Flow Properties o Drag Flow o Pressure Flow o Shear MODULE 5 – POLYMER DRYING Why Dry Plastic Pellets? Moisture Problems o Machine Processing Problems o Cosmetic Problems o Structural & Physical Problems Hygroscopic Polymer Non- Hygroscopic Polymer Dehumidifier o Drying Temperature o Dew Point o Drying Time o Air Flows MODULE 6 – CHANGES IN PROCESSING PARAMETERS Drying Screw Speed Injection Speed Back Pressure Injection Pressure Barrel & Mobile Temperature MODULE 7 – TROUBLE SHOOTING Making Decisions On Problem Solving Solutions o Fast Results o Slow Results Resin, Mechanical Or Design
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PROFESSIONAL TRAINING MADE EASY
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MODULE 8 – TYPES OF DEFECTS Definition Of Appearance And Dimensional Defects Visible And Non Visible Defects Processing Defects-Definitions, Causes & Solutions o Drool o Nozzle/Tip Frozen o Slow Cycle Time o Sweaty/Corrosion Of Tools Visible Part Defects o Black Speaks o Bubbles/Blisters o Burn/Black Surface o Cloudy/Hazy o Poor Color Distribution o Crazing, Stress Whitening o Delaminating o J-Hooks o Jetting o Dimension Unstable o Silver Streaks o War Page/Deformation o Non Visible / Internal Part Defects o Voids AUDIENCE Mould Setters, Technicians, Supervisors, Trainer Engineers, Quality Manager, Quality Assurance Personnel, Quality Control Staff Toolmakers & Tooling Engineers and those who are involved in plastics processing. METHODOLOGY This stimulating program will maximize understanding and learning through lectures, discussions case studies and practical activities.