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Solving Thick-Wall Injection Molding Shrinkage: Process Tips & Gas Assist Technology
Dealing with shrinkage in plastic parts—whether it's surface sink marks or internal voids—is a persistent challenge in injection molding. These defects occur when molten plastic fails to adequately compensate for volume reduction during the cooling of thick sections. Often, standard solutions like…
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2026年4月13日
射出成形
ナイロン射出成形部品における着色剤の性能要件
Introduction Selecting the right colorant for engineering plastics is a complex process. While many organic pigments, inorganic pigments, and solvent dyes work well for general thermoplastics, high-performance materials like Nylon (Polyamide) have strict requirements. Below, we explore the five critical performance characteristics…
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2026年4月13日
射出成形
Mastering Injection Molding Speed Segmentation: Rules & Optimization
Mastering Injection Molding Speed Segmentation: The Ultimate Guide Injection Molding[^1] is a complex dance of temperature, pressure, and time. Among these, injection speed (ram speed)[^2] plays a pivotal role in determining the quality of the final part. Why is speed segmentation so…
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2026年4月13日
射出成形
射出成形の極意：流速セグメンテーションの必須ルール
Injection speed (screw forward speed) is arguably the most critical parameter in the injection molding[^1] process. It has a direct and relationship with the quality of the finished part. By properly determining the start, middle, and end points of filling speed segments—and…
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Apr 10 2026
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Warpage Analysis in Thin-Wall Injection Molding: 6 Key Factors & Solutions
Thin-wall injection molding part showing warpage deformation Warpage deformation refers to the geometric distortion of an injection-molded part[^1], causing it to twist or bend away from its required shape precision. It remains one of the most stubborn and difficult defects to resolve…
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Apr 10 2026
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How Poor Venting and Mold Expansion Affect Plastic Parts
In the injection molding process, the mold cavity is initially filled with air before the plastic melt enters. Additionally, the plastic melt itself generates a significant amount of gas during injection. During mold filling, all these gases must be expelled from the…
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Apr 09 2026
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Multi-Material Injection Molding: Key Considerations & Best Practices
Multi-material injection molding is a sophisticated manufacturing process that combines two or more different materials to create a single, high-value component. This category encompasses techniques such as Overmolding, Co-injection, Two-shot Molding, and Sandwich Molding. The fundamental concept involves injecting a Substrate (or…
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Apr 09 2026
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Solving “Floating Fiber” Defects in Glass Fiber Reinforced Injection Molding
During mold trials, you might encounter a situation where the mold mechanisms run smoothly, but the parts suffer from severe aesthetic issues. A common problem is the appearance of radial white streaks on the surface, known in the industry as "Floating Fiber"…
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Apr 08 2026
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How to Solve Injection Molding Surface Defects Like Dark Spots, Gloss Differences, and Orange Peel?
Surface defects like dark spots and orange peel ruining your parts? These flaws waste time and money. Let’s fix them by adjusting your process and mold design[^1]. To fix these defects, focus on melt flow control. For dark spots, use a stepped…
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Apr 08 2026
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