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首页> 外国专利> method for surface hardening of steel parts by ion-plasma nitriding in pulsating glow discharge for workpieces with a threaded surface

method for surface hardening of steel parts by ion-plasma nitriding in pulsating glow discharge for workpieces with a threaded surface

机译：螺纹表面工件的脉冲辉光放电中通过离子等离子体氮化对钢零件进行表面硬化的方法

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A method for surface hardening of steel parts by ion-plasma nitriding for workpieces with a threaded surface, wherein the item is placed in a container, the item is connected to the negative pole of the power source, the container wall are connected with the positive pole of the power source, air is evacuated from the container by the vacuum system, the container is purged with working gas at a pressure of 1330 Pa by a gas supply system, the working gas is pumped from the container to the pressure 25-53 Pa, the pressure of working gas in container is increased to 25-1330 Pa, the pulsating voltage of 1100-1400 V is supplied on the item and the container walls by the means of an electric power and control, the pulsating voltage of 1000-1200 V is fed in with a pulse duration of 10-20 ms and the magnitude of the pulsing period of 40 ms per item for 4 hours, thermocyclic diffusion saturation of the item is carried out for 4 hours, the item with the threaded surface is removed from the container, at that nitrogen is used as the working gas. During the pulsating voltage of 1100-1400 V supplying on the item and the container wall, the item is heated with excited glow discharge up to , after 4 hours of thermocyclic diffusion saturation of the item it is cooled to the temperature of in the plasma glow discharge at a constant medium of the working gas in the container. After cooling the item to a temperature of in the plasma glow discharge the voltage is cut off and further cooling the item to room temperature is carried out at a working gas pressure of 25-1330
机译：一种用于表面带螺纹的工件通过离子等离子体渗氮对钢零件进行表面硬化的方法，其中将物品放置在容器中，物品连接至电源的负极，容器壁与正极连接电源的一极，通过真空系统从容器中抽出空气，通过供气系统用压力为1330 Pa的工作气体吹扫容器，将工作气体从容器中抽至压力25-53 Pa，容器中的工作气体压力增加到25-1330 Pa，通过电源和控制将1100-1400 V的脉动电压提供到物品和容器壁上，脉动电压为1000-1400 V 1200 V的脉冲持续时间为10-20 ms，每件产品的脉冲周期为40 ms，持续4小时，该件的热循环扩散饱和进行4小时，带有螺纹表面的件从conta移除惰性的，将氮气用作工作气体。在物品和容器壁上提供1100-1400 V的脉动电压期间，通过激发辉光放电将物品加热到，在物品热循环扩散饱和4小时后，将其冷却至等离子辉光的温度。以恒定的介质排放容器中的工作气体。在将物品冷却到等离子辉光放电中的温度后，切断电压，并在25-1330的工作气体压力下将物品进一步冷却至室温。

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