<?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[压铸模具浇注系统设计：直浇道、横浇道与内浇口尺寸计算]]></title><description><![CDATA[<h2>一、压铸浇注系统的作用</h2>
<p dir="auto">浇注系统是金属液从压室进入型腔的通道，直接影响充型状态和铸件质量。</p>
<h2>二、浇注系统组成</h2>
<h3>2.1 直浇道</h3>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>参数</th>
<th>推荐值</th>
</tr>
</thead>
<tbody>
<tr>
<td>直径</td>
<td>与压室一致</td>
</tr>
<tr>
<td>锥度</td>
<td>1-2°</td>
</tr>
<tr>
<td>粗糙度</td>
<td>Ra≤0.8μm</td>
</tr>
</tbody>
</table>
<h3>2.2 横浇道截面积比</h3>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>材料</th>
<th>A横/A内</th>
</tr>
</thead>
<tbody>
<tr>
<td>铝合金</td>
<td>2.0-3.0</td>
</tr>
<tr>
<td>锌合金</td>
<td>1.5-2.5</td>
</tr>
<tr>
<td>镁合金</td>
<td>2.5-4.0</td>
</tr>
</tbody>
</table>
<h3>2.3 内浇口速度</h3>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>材料</th>
<th>速度(m/s)</th>
<th>厚度(mm)</th>
</tr>
</thead>
<tbody>
<tr>
<td>铝合金</td>
<td>30-50</td>
<td>0.5-1.5</td>
</tr>
<tr>
<td>锌合金</td>
<td>20-40</td>
<td>0.3-0.8</td>
</tr>
<tr>
<td>镁合金</td>
<td>40-60</td>
<td>0.4-1.2</td>
</tr>
</tbody>
</table>
<h2>三、常见缺陷与对策</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>缺陷</th>
<th>调整方案</th>
</tr>
</thead>
<tbody>
<tr>
<td>卷气</td>
<td>增加溢流槽、降速</td>
</tr>
<tr>
<td>冷隔</td>
<td>加厚内浇口</td>
</tr>
<tr>
<td>浇不足</td>
<td>增加浇口面积</td>
</tr>
<tr>
<td>缩松</td>
<td>调整浇口位置</td>
</tr>
</tbody>
</table>
<h2>四、设计原则</h2>
<p dir="auto">压铸浇注系统设计：<strong>短、粗、直、光</strong>。</p>
<hr />
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<hr />
<p dir="auto"><img src="https://forum.mj7.cn/assets/plugins/nodebb-plugin-emoji/emoji/android/1f4cc.png?v=90ct0okuiem" class="not-responsive emoji emoji-android emoji--pushpin" title=":pushpin:" alt="📌" /> <strong>相关内容推荐</strong>：</p>
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<li><a href="/t/taper-lock">锥形精定位（Taper Lock）</a></li>
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<hr />
<p dir="auto">踩过坑的来评论区说说。</p>
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