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Let us understand the factors influencing quality consistency in processing and quality in performance

FACTORS INFLUENCING QUALITY OF MOULDING

MATERIAL

MOULD

MACHINE

Characteristics of Polymer

Design factors in Part and; Mould

Specification to meet the requirement of Part and; Mould

  • Maximum shot capacity of plasticating unit,
  • Residence time,
  • Maximum injection rate,
  • Number of stroke controlled steps for filling phase,
  • Maximum injection pressure,
  • Number of time controlled steps for pressure phase,
  • Plasticating rate,
  • Clamp force.

Let us understand moulding problems.

Let us see the analysis of plastic part failurs carried out by RAPRA.

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Things to know- Machine Injection Moulding Process Screw Plasticating Moulding Key factors influencing proces Shear strain curve
pvt diagram

Thermal stability Balancing melt Flow Balancing Heat Freezing Quality Problems
Three Balances

Moulded-in Stress Shrinkage Inconsistent Dimension Sink-mark Weld-lines
Moulding Problems

CYCLE TIME Plastics Part Design Flow Analysis .. ..
Engineering Basics in Machine Glossary of technical terms- Physics Glossary of technical terms- Polymer process Myth Understanding Mould Cooling Channels Ideal Moulding Shop