不锈钢板材的特殊表面加工

摘要：<p align="left"> <span style="font-family:宋体;">不锈钢板材的特殊表面加工</span> </p> <p align="left"> <span style="font-family:宋体;">由轧制表面加工的板材再进行逐级的磨抛，使表面具有毛面或不同的光亮等级</span><span>(3</span><span style="font-family:宋体;">号、</span><span>4</span><span style="font-family:宋体;">号、</span><span>6</span><span style="font-family:宋体;">号、</span><span>7</span><span style="font-family:宋体;">号、</span><span>8</span><span style="font-family:宋体;">号</span><span>)</span><span style="font-family:宋体;">。<span style="font-family:宋体;">不锈钢板材的特殊表面加工,</span>常用的</span><span>2J</span><span style="font-family:宋体;">或</span><span>4</span><span style="font-family:宋体;">号表面加工是采用磨料抛光</span><span>(</span><span style="font-family:宋体;">先用较粗的磨料，再用</span><span>80</span><span style="font-family:宋体;">～</span><span>200</span><span style="font-family:宋体;">磨料</span><span>)</span><span style="font-family:宋体;">，然后对钢卷进行张力矫直或平整，提高表面光泽。</span> </p> <p align="left"> <span style="font-family:宋体;">所用磨料的等级和种类</span><span>(</span><span style="font-family:宋体;">碳化硅产生的表面效果要比同等粒度氧化铝磨出的表面更柔和</span><span>)</span><span style="font-family:宋体;">、砂带号和砂带的状况，压头压力和钢带速度以及是否加润滑液，这些都直接影响表面的效果。不同生产厂之间没有统一标准，不可能匹配。<span style="font-family:宋体;">不锈钢板材的特殊表面加工,</span>流通领域的加工中心省略了张力矫直或平整，表面光泽较差。此外，标准的抛光工艺在不同的钢种上产生不同的效果，不可能完全一致。对一些关键性应用，订单中需要“典型样片”做参照，便于取得一致的看法。表</span><span>1</span><span style="font-family:宋体;">为不同表面加工的粗糙度参考值。</span> </p> <p align="left"> <span style="font-family:宋体;">不同表面加工的粗糙度参考值</span> </p> <div align="left"> <table style="border-bottom:medium none;border-left:medium none;border-collapse:collapse;border-top:medium none;border-right:medium none;" border="1" cellspacing="0" cellpadding="0"> <tbody> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span style="font-family:宋体;">表面加工</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span style="font-family:宋体;">粗糙度</span><span>CLA/</span><span style="font-family:宋体;">μ</span><span>m</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>2B</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span>0.10</span><span style="font-family:宋体;">～</span><span>0.5</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>2A</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span>0.05</span><span style="font-family:宋体;">～</span><span>0.1</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>2D</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span>0.40</span><span style="font-family:宋体;">～</span><span>1.0</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>3</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span>0.40</span><span style="font-family:宋体;">～</span><span>1.5</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>4</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span>0.20</span><span style="font-family:宋体;">～</span><span>1.5</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>8</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span>0.2</span> </p> </td> </tr> <tr> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="203"> <p> <span>EP(</span><span style="font-family:宋体;">电解抛光</span><span>)</span> </p> </td> <td style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;" width="219"> <p> <span style="font-family:宋体;">原表面的</span><span>1/2</span> </p> </td> </tr> </tbody> </table> </div> <p align="left"> <span style="font-family:宋体;">表面平滑程度对于耐腐蚀性是极为重要的，腐蚀测试表明粗糙度超过</span><span>0.5</span><span style="font-family:宋体;">μ</span><span>m</span><span style="font-family:宋体;">时腐蚀率会明显增大</span><span>(</span><span style="font-family:宋体;">见图</span><span>1)</span><span style="font-family:宋体;">。<span style="font-family:宋体;">不锈钢板材的特殊表面加工,</span>所以许多建筑标准规定*大粗糙度值为</span><span>0.5</span><span style="font-family:宋体;">μ</span><span>m</span><span style="font-family:宋体;">，而不是指定某一个标准表面的编号。</span> </p> <p> <span></span> </p>