实验所用装置如图1所示，将制备好的待抛光试样作为等离子体电化学体系中的

The device used in the experiment is shown in Figure 1. The prepared sample to be polished is used as the anode in the plasma electrochemical system to connect to the positive electrode of the DC power supply, and the distance between the cathode and anode greatly affects each point of the sample. The ionization rate of each micro-region is different, which affects the polishing result. Therefore, in this experiment, two stainless steel plates parallel to the anode sample were used as the cathode of the plasma electrochemical system. At the same time, a layer of cooling coils is arranged on the periphery of the stainless steel cathode parallel plate, and the temperature during the polishing process is controlled by regulating the flow of cooling water. First, the short side of the sample shown in Figure 1(a) is perpendicular to the electrolyte liquid surface, the surface to be polished is parallel to the cathode plate (hereinafter referred to as vertical), and the short side shown in Figure 1(b) is perpendicular to the parallel cathode plate. . The surface to be polished is parallel to the electrolyte level (hereinafter referred to as horizontal placement) for micro-arc polishing with two anode 304L stainless steel placement methods to explore the important role of the air gap film in polishing. In order to ensure the accuracy of the experiment, when placed horizontally The anode stainless steel was placed in the same spatial position as the central area of ​​the sample when it was placed vertically, and the results at this position were compared; then the subsequent experiments with different temperature fields were carried out in the placement mode shown in Figure 1(a).

The device used in the experiment is shown in Figure 1. The prepared sample to be polished is used as the anode in the plasma electrochemical system and connected to the positive pole of the DC power supply. Because the distance between the anode and cathode greatly affects the field strength of each point of the sample, the ionization rate of each micro region is different, which affects the polishing results, Therefore, two stainless steel plates parallel to the anode sample are used as the cathode of the plasma electrochemical system. At the same time, a layer of cooling coil is set on the periphery of the stainless steel cathode parallel plate to control the temperature in the polishing process by regulating the flow of cooling water. Firstly, micro arc polishing is carried out in two ways: the short side of the sample shown in Fig. 1 (a) is perpendicular to the electrolyte level, the surface to be polished is parallel to the cathode plate (hereinafter referred to as vertical placement), and the short side shown in Fig. 1 (b) is perpendicular to the cathode plate and the surface to be polished is parallel to the electrolyte level (hereinafter referred to as horizontal placement), Explore the important role of air gap film in polishing. In order to ensure the accuracy of the experiment, place the anode stainless steel in the same spatial position as the central area of the sample when placed horizontally and vertically, and compare the results of this position; Then, the subsequent experiments of different temperature fields were carried out in the placement mode shown in Fig. 1 (a).

As shown in Figure 1, the device used in the experiment connects the prepared sample to be polished as the anode of the plasma electrochemical system with the anode of the DC power supply. However, because the distance between the anode and cathode greatly affects the field strength of each point of the sample, the ionization rate of each micro-area is different, which further affects the polishing result. Therefore, two stainless steel plates parallel to the anode sample are used as the cathodes of the plasma electrochemical system in this experiment. At the same time, a layer of cooling coils is arranged on the periphery of the stainless steel cathode parallel plate, and the temperature in the polishing process is controlled by adjusting the flow of cooling water. Firstly, micro-arc polishing is carried out by two ways of anode 304L stainless steel: the short side of the sample is perpendicular to the electrolyte level, the surface to be polished is parallel to the cathode plate (hereinafter referred to as vertical placement) as shown in Figure 1(a), and the short side is perpendicular to the cathode plate and the surface to be polished is parallel to the electrolyte level (hereinafter referred to as horizontal placement) as shown in Figure 1(b), so as to explore the important role of air gap film in polishing. In order to ensure the accuracy of the experiment, anode stainless steel is placed horizontally and vertically. Subsequently, different temperature field experiments were carried out in the arrangement shown in Figure 1(a).