TPE Overmolding Process for Hardware Materials: A Comprehensive Guide
Time of issue:2024-08-23
The TPE overmolding process for hardware materials involves a two-stage injection molding technique.
In the first stage, TPE soft rubber is injected into the overmolding mold. Subsequently, in the second stage, the TPE soft rubber material is injected onto the hard plastic or metal substrate. After cooling, the final product is obtained.
The temperature range for TPE overmolding hardware materials typically lies between 170°C and 190°C. However, for TPE overmolding ABS, the temperature is higher, ranging from 200°C to 220°C. The temperature required for TPE overmolding PC materials is even higher than that for ABS, while for TPE overmolding PA materials, it reaches as high as 240°C.
It's worth noting that TPE overmolding metal materials is often referred to as "fake overmolding" in the industry. This terminology stems from the distinction between "true overmolding" and "fake overmolding," which relates to how the hard and soft materials are combined. True overmolding involves the fusion of hard and soft materials under high temperature, whereas fake overmolding relies on mechanical forces to embed them together.
In the context of TPE overmolding, TPE serves as the soft component, while the hard materials can be plastics, metals, or fabrics. TPE overmolding fabrics is commonly used in luggage products, while TPE overmolding plastics encompasses a wide range of materials such as PP, ABS, PC, PC/ABS, and PA.
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