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不銹鋼電解拋光光亮度增大的效果

       電解拋光表面除去細微毛刺，天津電解拋光是以被拋工件為陽極，不溶性金屬為陰極，兩極同時浸入到電解槽中，通以直流電離反應而產生有選擇性的陽極溶解，從而達到工件表面除去細微毛刺和光亮度增大的效果。工件作為陽極接直流電源的正極。用鉛﹑不銹鋼等耐電解液腐蝕的導電材料作為陰極﹐接直流電源的負極。兩者相距一定距離浸入電解液中﹐在一定溫度﹑電壓和電流密度下﹐通電一定時間﹐工件表面上的微小凸起部分便首先溶解﹐而逐漸變成平滑光亮的表面。工件上脫離的金屬離子與拋光液中的磷酸形成一層磷酸鹽膜吸附在工件表面，這種黏膜在凸起處較薄，凹處較厚，因凸起處電流密度高而溶解快，隨黏膜流動，凹凸不斷變化，粗糙表面逐漸被整平的過程。

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