How to shorten the injection cycle of TPE and TPR

For injection molding plants, a short molding cycle of a material means saving labor and electricity, reducing production costs and saving money. On the premise of ensuring product performance, TPE and TPR materials with fast molding and short production cycle are naturally more popular with factory owners and injection molding masters.

So how to shorten the injection cycle of TPE and TPR? Dongguan Oudili summed up in two aspects, one is the material aspect, and the other is the molding process aspect.

First, the material aspect.

The components of TPE and TPR blend system should be adjusted and optimized with the goal of reducing the melting point, improving the fluidity and improving the coolability of materials. ODL Audi can provide technical support for material improvement in this respect.

Second, the molding process

1. molding temperature

On the premise of ensuring the product quality, try to use a lower injection temperature. This can shorten the cooling time.

2. Mold cooling system

The cooling time accounts for about 70~80% of the whole molding cycle. A well-designed cooling system can greatly shorten the molding time, improve the injection productivity and reduce the cost. Improper design of cooling system will prolong the molding time and increase the cost; Uneven cooling will further cause warpage and deformation of plastic products. For TPE and TPR products with large thickness and size, the cooling effect should be fully considered when designing the equipment cooling system.

3. Mold temperature

It is advisable to adopt a relatively low mold temperature, generally 30~50℃, which should be strictly controlled in the production process.