Precision Injection Molding Process Control & Quality Standards At CNMOULDING, precision injection molding is not just about producing parts—it is about delivering stable, repeatable, and production-ready results. We focus on controlling every variable in the molding process to ensure your parts meet tight tolerances, functional requirements, and long-term production stability. Engineering-Led Production We treat injection…
Solving Cracking Issues in ABS Parts with Copper Inserts: A Root Cause Analysis Insert molding ABS with copper bushings is a common practice for creating durable threads in plastic parts. However, many manufacturers struggle with delayed cracking (stress cracking) around the metal insert, often appearing weeks after production. As a precision mold maker in Shanghai,…
Injection Molding Flash: Causes, Prevention, and Real Manufacturing Solutions Flash is one of the most common quality defects in plastic injection molding production. It appears as a thin layer of excess plastic that leaks out of the mold cavity and forms along the edges or parting lines of a molded part. While flash may seem…
Injection Molding Short Shot: Why It Happens and How to Fix It A short shot occurs when molten plastic fails to completely fill the mold cavity. This defect is common in injection molding and can lead to: Incomplete parts Weak structures High rejection rates Short shots are often a sign of flow limitation or…
Injection Molding Sink Marks: Causes, Prevention, and Real Factory Solutions Sink marks are one of the most common quality problems in plastic injection molding. These small surface depressions may look minor at first glance, but they can seriously affect the appearance and performance of a product. For manufacturers producing consumer electronics, automotive components, or medical…
Injection Molding Shrinkage: Causes, Solutions and Practical Solutions Shrinkage is one of the most common quality problems in plastic injection molding. It appears as small depressions or surface dents on plastic parts and often occurs in areas with thicker walls or internal ribs. Although shrinkage may seem like a minor cosmetic defect, it can significantly…
