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Optimizing Injection Speeds for Enhanced Performance in Plastic Molding

This document explores various profiling injection speed strategies, including normal injection velocities, bi-modal hump profiles, ascending and descending profiles. Each method is analyzed for its effectiveness in different scenarios, such as delicate geometries and highly filled resins. Injection velocities are monitored and adjusted to achieve optimal filling at 95% while minimizing defects like flash. Understanding the different profiles and their implications on the end fill process can significantly enhance the quality and efficiency of plastic injection molding.

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Optimizing Injection Speeds for Enhanced Performance in Plastic Molding

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  1. 0 20 30 40 50 60 70 80 90 100 10 0 Profiling Injection Speeds ‘Normal’ % Injection Velocity End fill at 95% Start of Pack Percent of Shot

  2. 0 20 30 40 50 60 70 80 90 100 10 0 Profiling Injection Speeds Bi-modal hump Camel Good for delicate Geometry % Injection Velocity End fill at 95% Percent of Shot

  3. 0 20 30 40 50 60 70 80 90 100 10 0 Profiling Injection Speeds Ascending Good for highly filled resins % Injection Velocity End fill at 95% Percent of Shot

  4. 0 20 30 40 50 60 70 80 90 100 10 0 Profiling Injection Speeds Descending Good for delicate Geometry % Injection Velocity End fill at 95% Percent of Shot

  5. 0 20 30 40 50 60 70 80 90 100 10 0 Profiling Injection Speeds Hump Not particularly useful Good to avoid flash % Injection Velocity End fill at 95% Percent of Shot

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