Molded Automobile Part - Thin Wall Cable Shielding

Application: Cable Channel (Automobile)
Size: 430X240X100mm
Material: Total PP 3962 (High Melt Flow Index)
Machine Tonnage: 190T
Runner : Cold Runner
Process: Overmolded Metal Rings

Precision Engineering in Automotive Cable Channel Injection Molding

Explore our case study showcasing GoodTech's expertise in molding ultra-thin (1.5mm) cable channels for automobiles. Utilizing high-flow Total PP 3962, our meticulous venting system ensures rapid and uniform mold filling, epitomizing excellence in automotive part manufacturing. Dive into the synergy of material, design, and precision molding, delivering optimal performance in every detail.

PP 3962

1. Mold Design:

Gate Placement: Optimize gate design for a balanced flow of molten material. Consider edge gates or fan gates to maintain uniform pressure and minimize stress concentrations.

Part Design: Ensure uniform wall thickness across the entire part. This not only promotes even cooling but also minimizes warpage and internal stresses. Use gradual transitions between thick and thin sections.

Runner System: Design an efficient runner system to facilitate smooth material flow. Consider hot runners for better control over the melt and reduced waste.

2. Cooling System:

Uniform Cooling: Implement a cooling system that maintains consistent temperatures across the mold surface. Uneven cooling can lead to warpage and dimensional inconsistencies.

Conformal Cooling: Consider advanced cooling technologies, such as conformal cooling channels, to precisely target areas with higher heat generation, promoting uniform cooling.

Cooling Time Optimization: Balance the need for adequate cooling time with efficient production cycles. Adjust cooling time to prevent premature ejection and deformation.

3. Venting:

Importance of Venting: Proper venting is crucial to allow air and gases to escape during the injection process. Inadequate venting can result in trapped air, leading to burn marks, voids, or incomplete filling.

Vent Placement: Strategically place vents at locations prone to air entrapment, such as thin wall sections or near knit lines. This promotes a smoother material flow.

Vent Design: Use micro vents or porous materials for effective venting without compromising part integrity. Regularly inspect and clean vents to prevent blockages.