LFT PA6 carbon fiber reinforced thermoplastic composite

Product process

Product process

1.PA6 particle properties

Because PA6 is easy to be hygroscopic, hygroscopic has an impact on the processing process, such as the melt viscosity drops, the surface of the product has bubbles, silver lines, etc.And the mechanical properties of the products also decreased significantly.Therefore, it must be dried before forming.Besides, PA is easy to be oxidized and discolor and degrade at high temperature. Therefore, vacuum drying is the best method, but in the absence of vacuum drying, atmospheric hot air drying can also be used.Vacuum drying temperature is 85-95 ℃ for 4-6h. Hot air drying temperature is 90-100℃ for 3-5h. After drying, PA6 material should not be placed in the air for a long time (no more than 1-3h).

Injection pressure has little effect on PA6 mechanics.The choice of injection pressure is mainly based on the type of injection molding machine, barrel temperature, product shape, size, mold structure, but also depends on the injection speed, injection time, pressure holding time and other factors.

Selection of injection rate and products of wall thickness, the temperature of the melt, and the size of the gate, for thin wall products, injection speed can be faster, while for thick wall products injection speed can be slow, high melt temperature, injection speed injection speed will slowly, gate size is small, the injection speed cannot too fast, or you will melt temperature is too high and caused by excessive shear degradation, resulting in a decline in product color and mechanical properties.The injection speed is too fast, will also make the product bubbles, burning defects.

Thanks for your visit

Contracts email:sale04@lfrtplastic.com

Contracts wechat/whatsapp/skype:+86 135 5947 4625

Web：www.lft-g.com