OEM Прецизионные нейлоновые шарики/Delrin пластиковые конические шестерни

  PA (Polyamide),commonly known as Nylon,are elements on the main chain amide group containing duplicate(NHCO) general term for the thermoplastic resin.It is a translucent or white crystalline resin and his molecular weight is generally 1.5-3 million.Nylong has high mechanical strength,high softening point,heat resistance,low coefficient of friction,wear-resisant,self-lubricating,shock-absorbing,oil resistance,weak acid,alkail and general solvents;good electric insulation,self-extinguishing nature,non-toxic,odorless,weather resistance and so on.Nylon and glass fiber affinity is very good,so easy to enhance.However, the dyeing properties of Nylon bad, it is not easy coloring,The absorbent nylon influence dimensional stability and electrical perfermance,fiber-reinforced resin to reduce water absorbtion,so that it can be at high temperature,high humidity to work.For the burning of nylon UL94-V2 class,oxygen index for the 24-28.Decompositioon temperature of the nylon>299°C,at 449°C-499°C spontaneous combustion occurs.The mobility of nylon melt well,so product can be as small as wall thickness 1mm.