摘要：<p align="left"> <span style="font-family:宋體;">不銹鋼板材的特殊表面加工</span> </p> <p align="left"> <span style="font-family:宋體;">由軋制表面加工的板材再進行逐級的磨拋，使表面具有毛面或不同的光亮等級</span><span>(3</span><span style="font-family:宋體;">號、</span><span>4</span><span style="font-family:宋體;">號、</span><span>6</span><span style="font-family:宋體;">號、</span><span>7</span><span style="font-family:宋體;">號、</span><span>8</span><span style="font-family:宋體;">號</span><span>)</span><span style="font-family:宋體;">。<span style="font-family:宋體;">不銹鋼板材的特殊表面加工,</span>常用的</span><span>2J</span><span style="font-family:宋體;">或</span><span>4</span><span style="font-family:宋體;">號表面加工是采用磨料拋光</span><span>(</span><span style="font-family:宋體;">先用較粗的磨料，再用</span><span>80</span><span style="font-family:宋體;">～</span><span>200</span><span style="font-family:宋體;">磨料</span><span>)</span><span style="font-family:宋體;">，然后對鋼卷進行張力矯直或平整，提高表面光澤。</span> </p> <p align="left"> <span style="font-family:宋體;">所用磨料的等級和種類</span><span>(</span><span style="font-family:宋體;">碳化硅產(chǎn)生的表面效果要比同等粒度氧化鋁磨出的表面更柔和</span><span>)</span><span style="font-family:宋體;">、砂帶號和砂帶的狀況，壓頭壓力和鋼帶速度以及是否加潤滑液，這些都直接影響表面的效果。不同生產(chǎn)廠之間沒有統(tǒng)一標準，不可能匹配。<span style="font-family:宋體;">不銹鋼板材的特殊表面加工,</span>流通領(lǐng)域的加工中心省略了張力矯直或平整，表面光澤較差。此外，標準的拋光工藝在不同的鋼種上產(chǎn)生不同的效果，不可能完全一致。對一些關(guān)鍵性應(yīng)用，訂單中需要“典型樣片”做參照，便于取得一致的看法。表</span><span>1</span><span style="font-family:宋體;">為不同表面加工的粗糙度參考值。</span> </p> <p align="left"> <span style="font-family:宋體;">不同表面加工的粗糙度參考值</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:宋體;">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:宋體;">粗糙度</span><span>CLA/</span><span style="font-family:宋體;">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:宋體;">～</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:宋體;">～</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:宋體;">～</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:宋體;">～</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:宋體;">～</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:宋體;">電解拋光</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:宋體;">原表面的</span><span>1/2</span> </p> </td> </tr> </tbody> </table> </div> <p align="left"> <span style="font-family:宋體;">表面平滑程度對于耐腐蝕性是極為重要的，腐蝕測試表明粗糙度超過</span><span>0.5</span><span style="font-family:宋體;">μ</span><span>m</span><span style="font-family:宋體;">時腐蝕率會明顯增大</span><span>(</span><span style="font-family:宋體;">見圖</span><span>1)</span><span style="font-family:宋體;">。<span style="font-family:宋體;">不銹鋼板材的特殊表面加工,</span>所以許多建筑標準規(guī)定*大粗糙度值為</span><span>0.5</span><span style="font-family:宋體;">μ</span><span>m</span><span style="font-family:宋體;">，而不是指定某一個標準表面的編號。</span> </p> <p> <span></span> </p>