<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[模具抛光标准化工艺：从粗抛到镜面SPI A1的操作规范]]></title><description><![CDATA[<p dir="auto">模具型腔表面质量直接影响塑件外观和脱模。</p>
<h2>SPI等级</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>等级</th>
<th>Ra值</th>
<th>应用</th>
</tr>
</thead>
<tbody>
<tr>
<td>A1</td>
<td>≤0.012μm</td>
<td>光学产品</td>
</tr>
<tr>
<td>A2</td>
<td>≤0.025μm</td>
<td>外观件</td>
</tr>
<tr>
<td>A3</td>
<td>≤0.050μm</td>
<td>汽车内饰</td>
</tr>
<tr>
<td>B1</td>
<td>≤0.100μm</td>
<td>一般外观</td>
</tr>
</tbody>
</table>
<h2>工序</h2>
<ol>
<li>粗抛：油石#180-#320</li>
<li>半精抛：砂纸#400-#800</li>
<li>精抛：砂纸#1000-#2000</li>
<li>镜面：金刚石研磨膏+羊毛轮</li>
</ol>
<blockquote>
<p dir="auto">制作抛光样板留作对比。</p>
</blockquote>
<hr />
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<p dir="auto">各位师傅觉得这个方案怎么样？有更好的做法吗？</p>
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