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Lesson 2: Pressure Behavior

Understanding pressure behavior during the filling phase is an important tool for molding quality parts. This lesson focuses on the effects of injection pressure using different melt temperatures, mold temperatures, and fill rates.

Topics in this lesson include: how melt and mold temperatures impact injection pressure during the filling phase, how viscosity curves can predict temperature and injection behavior, and how different fill times affect injection pressure during filling.

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Pressure Behavior Play Screen

Learn the fundamentals of process optimization by understanding how different phases in the injection molding cycle will influence the overall part quality. Build your own Circle of Knowledge lesson by lesson. 

Goals of Processing: Filling Phase (Level 1): 

  • Learn the fundamentals of process optimizing by analyzing the filling phase of molding a part
  • Gain an understanding of how part design, mold design, and process are connected and interdependent
  • Analyze real-life molded parts and learn the cause and effect behaviors of design and process

Section Description: 

Molding high-quality parts is dependent on many factors, including skillful part and mold design, an understanding of polymer material behavior, and an optimized process. It is important for injection molding processing engineers to follow key steps to ensure consistently high-quality molded parts.

Explanations, simulations, cause and effect analyses, and various filling phase variables are covered in this section.

Recommended For: Entry Level Personnel, All Personnel

Length: Lessons are approximately 15-20 minutes long each

The Kruse Training platform delivers knowledge and expertise developed over two decades in the plastic injection molding industry. Now companies and individuals can access a state-of-the-art online training program, suited for all levels of knowledge.