Air bubbles, also known as voids or gas pockets, are common defects in injection molded parts. They can adversely affect the appearance, structural integrity, and performance of the parts. Understanding the causes of air bubbles is crucial for troubleshooting and preventing these defects. Here are the primary causes of air bubbles in injection molding: 1. … Read more
Plastic injection molds are highly versatile and are used to manufacture a wide range of products. Here are some examples of items that can be made with plastic injection molds: The versatility of plastic injection molding makes it a preferred method for producing high-volume, complex, and precise plastic parts across various industries. Related Conten: 3D … Read more
Yes, PET (Polyethylene Terephthalate) can be injection molded. PET is a widely used thermoplastic polymer known for its excellent strength, clarity, and barrier properties. It is commonly used in the packaging industry, especially for making bottles and containers, but also finds applications in automotive, electronics, and other industries. Here’s a detailed look at PET injection … Read more
In injection molding, the cooling of the part is primarily influenced by the cooling time rather than the hold or cure time. However, hold (or packing) time and cooling time both play crucial roles in the overall cycle of the injection molding process. Here’s how each of these factors contributes to the cooling and quality … Read more
Warping is a common defect in injection molded parts, where the part bends or twists out of shape after cooling. This deformation occurs due to uneven shrinkage during the cooling process and can significantly impact the functionality and aesthetics of the final product. Understanding the causes of warping and implementing strategies to prevent it is … Read more
Tiger striping, also known as flow marks or flow lines, is a common surface defect in injection molded parts. These marks appear as a series of light and dark bands or streaks, resembling the stripes of a tiger, hence the name. Understanding the causes of tiger striping and how to prevent it is crucial for … Read more
Splay, also known as silver streaks or flow lines, is a common defect in injection molded parts that appears as streaks or lines on the surface of the molded part. These imperfections are typically lighter in color and can significantly impact the aesthetic and structural integrity of the part. Understanding the causes of splay and … Read more
Sinks in injection molding, also known as sink marks, are depressions or dimples on the surface of the molded part. These defects occur when the material in the interior of the part shrinks more than the material on the surface during cooling and solidification. Here are the primary causes of sink marks in injection molding: … Read more
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