<?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[模具钢热处理工艺规范：淬火与回火参数对模具寿命的影响]]></title><description><![CDATA[<p dir="auto">热处理决定模具钢的使用性能。</p>
<h2>常用模具钢参数</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>钢种</th>
<th>淬火温度</th>
<th>回火温度</th>
<th>预期硬度</th>
</tr>
</thead>
<tbody>
<tr>
<td>Cr12MoV</td>
<td>980-1020℃</td>
<td>180-220℃</td>
<td>HRC 60-63</td>
</tr>
<tr>
<td>H13</td>
<td>1010-1060℃</td>
<td>540-600℃</td>
<td>HRC 46-52</td>
</tr>
<tr>
<td>8407</td>
<td>1000-1040℃</td>
<td>550-620℃</td>
<td>HRC 46-52</td>
</tr>
<tr>
<td>DC53</td>
<td>1030-1080℃</td>
<td>520-560℃</td>
<td>HRC 58-62</td>
</tr>
</tbody>
</table>
<h2>淬火要点</h2>
<ul>
<li>预热：350-400℃</li>
<li>冷却：气淬变形最小</li>
</ul>
<h2>回火</h2>
<ul>
<li>高合金钢需2-3次回火</li>
<li>热作模具钢高温回火500-580℃</li>
<li>冷作模具钢低温回火180-250℃</li>
</ul>
<hr />
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<p dir="auto">踩过坑的来评论区说说。</p>
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