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塑料模具的表面处理
塑料模具的表面处理
Surface treatment of plastic mold
为了提高塑料模表面耐磨性和耐蚀性，常对其进行适当的表面处理。
In order to improve the wear resistance and corrosion resistance of plastic mold surface, surface treatment is often carried out.
1.塑料模镀铬是一种应用最多的表面处理方法，镀铬层在大气中具有强烈的钝化能力，能长久保持金属光泽，在多种酸性介质中均不发生化学反应。镀层硬度达1000HV，因而具有优良的耐磨性。镀铬层还具有较高的耐热性，在空气中加热到500℃时其外观和硬度仍无明显变化。
1. Plastic mold chromium plating is one of the most widely used surface treatment methods. The chromium plating layer has strong passivation ability in the atmosphere, can maintain metal luster for a long time, and does not occur chemical reaction in a variety of acidic media. The hardness of the coating reaches 1000HV, so it has excellent wear resistance. The chromium plating layer also has high heat resistance, and the appearance and hardness of the chromium plating layer have no obvious change when it is heated to 500 C in air.
2.渗氮具有处理温度低（一般为550～570℃），模具变形甚微和渗层硬度高（可达1000～1200HV）等优点，因而也非常适合塑料模的表面处理。含有铬、钼、铝、钒和钛等合金元素的钢种比碳钢有更好的渗氮性能，用作塑料模时进行渗氮处理可大大提高耐磨性。
2. Nitriding has the advantages of low treatment temperature (generally 550-570, little mold deformation and high hardness (up to 1000-1200HV), so it is Steel grades containing chromium, molybdenum, aluminum, vanadium and titanium alloying elements have better nitriding properties than carbon steel. Nitriding treatment can greatly improve wear resistance when used as plastic molds.
适于塑料模的表面处理方法还有：氮碳共渗、化学镀镍、离子镀氮化钛、碳化钛或碳氮化钛，PVD、CVD法沉积硬质膜或超硬膜等。
Surface treatment methods suitable for plastic molds include nitrocarburizing, electroless nickel plating, ion plating of titanium nitride, titanium carbide or titanium carbide, PVD, CVD deposition of hard or superhard films, etc.
Surface treatment of plastic mold
为了提高塑料模表面耐磨性和耐蚀性，常对其进行适当的表面处理。
In order to improve the wear resistance and corrosion resistance of plastic mold surface, surface treatment is often carried out.
1.塑料模镀铬是一种应用最多的表面处理方法，镀铬层在大气中具有强烈的钝化能力，能长久保持金属光泽，在多种酸性介质中均不发生化学反应。镀层硬度达1000HV，因而具有优良的耐磨性。镀铬层还具有较高的耐热性，在空气中加热到500℃时其外观和硬度仍无明显变化。
1. Plastic mold chromium plating is one of the most widely used surface treatment methods. The chromium plating layer has strong passivation ability in the atmosphere, can maintain metal luster for a long time, and does not occur chemical reaction in a variety of acidic media. The hardness of the coating reaches 1000HV, so it has excellent wear resistance. The chromium plating layer also has high heat resistance, and the appearance and hardness of the chromium plating layer have no obvious change when it is heated to 500 C in air.
2.渗氮具有处理温度低（一般为550～570℃），模具变形甚微和渗层硬度高（可达1000～1200HV）等优点，因而也非常适合塑料模的表面处理。含有铬、钼、铝、钒和钛等合金元素的钢种比碳钢有更好的渗氮性能，用作塑料模时进行渗氮处理可大大提高耐磨性。
2. Nitriding has the advantages of low treatment temperature (generally 550-570, little mold deformation and high hardness (up to 1000-1200HV), so it is Steel grades containing chromium, molybdenum, aluminum, vanadium and titanium alloying elements have better nitriding properties than carbon steel. Nitriding treatment can greatly improve wear resistance when used as plastic molds.
适于塑料模的表面处理方法还有：氮碳共渗、化学镀镍、离子镀氮化钛、碳化钛或碳氮化钛，PVD、CVD法沉积硬质膜或超硬膜等。
Surface treatment methods suitable for plastic molds include nitrocarburizing, electroless nickel plating, ion plating of titanium nitride, titanium carbide or titanium carbide, PVD, CVD deposition of hard or superhard films, etc.
