Shenzhen Ningrui electronics all switch’s body material choosePA66,why? PA66, also known as nylon 66, poly adipic acid hexamethylenediamine.Chemical formula is [-NH（CH2）6－NHCO(CH2)4CO]n－ ,Density between 1.10 and 1.14(g/cm3).To against acid, alkali, most of the inorganic salt solution, alkyl halides, hydrocarbons, esters, ketones, such as corrosion, but soluble in phenol, formic acid and other polar solvents.It with excellent wear resistance, self lubrication, high mechanical strength.PA66 has a higher melting point in polyamide material. It is a semi-crystalline - crystalline materials. Has good overall performance, its tensile strength, flexural strength, fatigue resistance, abrasion resistance and electrical properties are very good.
PA66 injection molding process conditions of Shenzhen is 85 ℃ hot air in the drying process. If the humidity is greater than 0.2%, also need to be 105 ℃, 12 hours of vacuum drying.
So it is able to avoid the switch variants and even power outages from heat in the machine.PA66 with low viscosity,so liquidity is very good,therefore, this property can be used for processing thin components.