Weld line defects in injection moulding account for 25% of cosmetic and structural part failures and are the most common problem encountered by customers. Weld lines are formed when two melt fronts meet, and poor melt conditions can result in poor bonding or visible flaws. Troubleshooting this type of failure begins with determining the exact… Continue reading How to Troubleshoot Weld Line Failures on Plastic Injection Moulding Machine？
Selecting a screw and barrel configuration for an injection moulding machine requires consideration of multiple factors, including polymer type, target shot size, cycle time requirements, and final part specifications. First, we need to evaluate the melt flow index, moisture sensitivity, and thermal stability of the product raw material, which determine the necessary plasticising capacity and… Continue reading How to choose the screw and barrel configuration for your injection moulding machine?
Frame rigidity refers to the ability of the machine’s structural frame to resist deformation under load. When the injection moulding machine applies high clamping and injection pressures, the frame must maintain its shape to ensure the mould is accurately aligned. Any slight deviation can result in flashing, under-injection, or uneven part filling. Additionally, a rigid… Continue reading Importance of Injection Moulding Machine Frame Rigidity
