Nylon-PA6 Material used in CNC factory

Basic Introduction

Nylon 6, also known as PA6 Material used in CNC factory, polyamide 6, and nylon 6, is a polymer compound.

On October 27, 2017, the World Health Organization's International Agency for Research on Cancer published a preliminary list of carcinogens for reference, and nylon 6 is on the list of Class 3 carcinogens.

Mechanical properties

The chemical and physical properties of dragon 6 are very similar to those of nylon 66. However, it has a lower melting point and a wide process temperature range. Its impact resistance and solubility resistance are better than nylon 66 plastic, but its hygroscopicity is also stronger. Because many quality characteristics of plastic parts are affected by hygroscopicity, this should be fully considered when designing products using nylon 6. In order to improve the mechanical properties of nylon 6, various modifiers are often added. Glass fiber is the most common additive, and sometimes synthetic rubbers such as EPDM and SBR are added to improve impact resistance. For products without additives, the shrinkage rate of nylon 6 plastic raw materials is between 1% and 1.5%. Adding glass fiber additives can reduce the shrinkage rate to 0.3% (but it is slightly higher in the direction perpendicular to the process). The shrinkage rate of molding assembly is mainly affected by the crystallinity and hygroscopicity of the material. The actual shrinkage rate is also a function of the plastic part design, wall thickness and other process parameters. Nylon 6 injection molding drying treatment Since nylon 6 easily absorbs moisture, special attention should be paid to drying before processing. If the material is supplied in waterproof packaging, the container should be kept airtight. If the humidity is greater than 0.2%, it is recommended to dry it in hot air above 80°C for 16 hours. If the material has been exposed to air for more than 8 hours, it is recommended to vacuum dry it at 105°C for more than 8 hours.