<h2 class="newsinfo_title">宝钢热镀铝锌产品供货标准及牌号和镀层表面结构分类简介</h2>
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		  <li>2011-3-23 17:11:09</li>    
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					  <td width="60"><b>导读：</b></td>
					  <td>宝钢热镀铝锌产品供货标准及牌号和镀层表面结构分类简介</td>
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					  <td width="60"><b>关键字：</b></td>
					  <td>宝钢 热镀铝锌 标准 牌号 镀层</td>
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<div class="over_x"><P><b>热镀铝锌</b>钢板是以各种强度和厚度规格的冷轧钢板为基材，在双面热镀一层Al-Zn<b>镀层</b>所得的预镀层钢板，镀层成分中质量百分比为55%Al、43.5%Zn和1.5%Si，融合了Al的物理保护和高耐久性以及Zn的电化学保护特性。此外，在表面呈具有高装饰性的光亮银灰色泽及规则的花纹，并具有浮徒凸感。 </P>
<P>
<TABLE>
<TBODY>
<TR>
<TD>供货<b>标准</b>及<b>牌号</b></TD></TR></TBODY></TABLE>
<TABLE>
<TBODY>
<TR>
<TD>材料类别</TD>
<TD><b>宝钢</b>企业标准</TD>
<TD>牌号</TD>
<TD>说明</TD></TR>
<TR>
<TD rowSpan=2>冷成型用钢</TD>
<TD rowSpan=6>Q/BQB425</TD>
<TD>DC51D+AZ</TD>
<TD rowSpan=2>适用于冷成型加工</TD></TR>
<TR>
<TD>&nbsp;&nbsp;DC52D+AZ</TD></TR>
<TR>
<TD rowSpan=4>结构用钢</TD>
<TD>S250GD+AZ</TD>
<TD rowSpan=4>适用于结构用</TD></TR>
<TR>
<TD>S300GD+AZ</TD></TR>
<TR>
<TD>S350GD+AZ</TD></TR>
<TR>
<TD>S550GD+AZa</TD></TR>
<TR>
<TD colSpan=4>a：适用于轧硬后不完全退火产品</TD></TR>
<TR>
<TD colSpan=4></TD></TR></TBODY></TABLE><BR>
<TABLE>
<TBODY>
<TR>
<TD>镀层种类分类和代号</TD></TR></TBODY></TABLE>
<TABLE>
<TBODY>
<TR>
<TD>项目</TD>
<TD>分类</TD>
<TD>代号</TD></TR>
<TR>
<TD>镀层种类</TD>
<TD>铝锌合金镀层</TD>
<TD>AZ</TD></TR>
<TR>
<TD>推荐的公称镀层重量&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; g/m2</TD>
<TD colSpan=2>30/30，40/40，50/50，60/60，75/75，90/90</TD></TR>
<TR>
<TD colSpan=3></TD></TR></TBODY></TABLE><BR>
<TABLE>
<TBODY>
<TR>
<TD>表面结构分类和代号</TD></TR></TBODY></TABLE>
<TABLE>
<TBODY>
<TR>
<TD>项目</TD>
<TD>分类</TD>
<TD>代号</TD>
<TD>特征</TD></TR>
<TR>
<TD rowSpan=2>表面结构</TD>
<TD>正常锌花</TD>
<TD>N</TD>
<TD>镀锌后在通常条件下锌层冷凝而得的锌花</TD></TR>
<TR>
<TD>光整锌花</TD>
<TD>S</TD>
<TD>正常锌花经光整处理得到的表面结构</TD></TR>
<TR>
<TD colSpan=4></TD></TR></TBODY></TABLE><BR>
<TABLE>
<TBODY>
<TR>
<TD>表面处理的分类和代号</TD></TR></TBODY></TABLE>
<TABLE>
<TBODY>
<TR>
<TD>项目</TD>
<TD>分类</TD>
<TD>代号</TD>
<TD>说明</TD></TR>
<TR>
<TD rowSpan=5>表面处理</TD>
<TD>铬酸钝化处理</TD>
<TD>C</TD>
<TD>此种表面处理可减少产品表面在运输和储存期间产生黑锈</TD></TR>
<TR>
<TD>涂油</TD>
<TD>O</TD>
<TD>此种表面处理可减少产品表面产生黑锈，一般不作为后加工用轧制油和冲压润滑油。</TD></TR>
<TR>
<TD>铬酸钝化处理+涂油</TD>
<TD>CO</TD>
<TD>此种表面处理可进一步减少产品表面产生黑锈。</TD></TR>
<TR>
<TD>涂耐指纹膜</TD>
<TD>UF</TD>
<TD>此种表面处理可减少产品表面产生黑锈。</TD></TR>
<TR>
<TD>不处理</TD>
<TD>U</TD>
<TD>这种处理情况下钢板及钢带表面极易产生黑锈，用户在选用时应慎重考虑。</TD></TR></TBODY></TABLE></P>
<P></P><p>(关键字：宝钢 热镀铝锌 标准 牌号 镀层)</p></div>
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	<div class="pT25 t-r f14 cGray01">（责任编辑：00905）</div>
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