Properties and USES of mirror plastic mold steel PMS?
Mirror plastic mould steel PMS is a kind of precipitated hardened aging steel, with excellent mirror processing performance, good cold and heat processing performance, electrical processing performance and good comprehensive mechanical performance.Heat treatment process is simple, the (850 + 20) ℃ solution, (500 +) 10 ℃ after aging treatment, the matrix of bainite and martensite duplex, heat treatment deformation rate. Small (< 0.05%).Section "phi 150 mm thickness or template" 150 mm cross section of the organization, uniform hardness distribution, mechanical properties for sigma a > 980 mpa, 1200 mpa, sigma sigma b > c > 13%, sigma > 45%. Suitable for manufacturing working temperature 300 ℃, use 30 ~ 45 HRC hardness, high mirror surface, high precision of all kinds of plastic mold.
PMS mirror plastic mold steel has good nitriding surface strengthening performance.The surface hardness reached 800 ~ 1200HV after nitriding treatment.
PMS steel is widely used all kinds of lens optics system, audio and video tape inside and outside the box, telephone, radio, quartz clock, washing machine, vehicle lamps and lanterns and instrumentation electrical appliances such as all kinds of plastic shell mold.