PA612_PA612 Introduction

PA612

PA612 is also called polyamide 612 or nylon 612. In addition to the general PA characteristics, PA612 also has the advantages of small relative width, lower water absorption and density, good dimensional stability, high tensile strength and impact strength, and transparency

catalog

1. PA612 classification

PA612

2. Common applications of PA612

PA612 is mainly used for making advanced toothbrushes and other industrial bristles, as well as for making precise mechanical parts and wire and cable coating, oil pipes, oil resistant ropes, conveyor belts, bearings, gaskets, etc. It can also be used for making gun butts, helmets and military cables in military industry

3. Development history of PA612

The injection pressure of nylon 612 is unstable. Generally, this situation is related to the small nozzle hole of the injection molding machine, because the nozzle is in long-term contact with the mold, the mold temperature is very low 20-90 ℃, and the nozzle temperature is 240-280 ℃. There is a temperature difference between them, which will inevitably lead to heat exchange. When the temperature of the nozzle drops below the melting point of nylon, the nozzle hole will be frozen, During the next injection, a large pressure is required to drive away, resulting in pressure loss and injection. However, after the injection pressure is increased, the mold will expand after several molds are produced. Seen from the phenomenon, the injection molding of the injection molding machine is unstable. In fact, the phenomenon that the nozzle hole is too small will disappear if the nozzle hole is enlarged.