<?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[压铸锌合金-Zamak5——模具行业从业者必备知识手册]]></title><description><![CDATA[<h1>Zamak 5（五号锌合金）</h1>
<h2>概述</h2>
<p dir="auto">Zamak 5（也叫5号锌合金）是<strong>Zamak系列</strong>里的<strong>中高强度</strong>压铸锌合金，在Zamak 3基础上增加铜含量，提高了强度和硬度，适合承力结构件。</p>
<p dir="auto"><img src="https://mj7.cn/uploads/default/original/1X/58f560f22da200d52bb2ba1a1bb4b5d9cf51e917.webp" alt="模具图片" class=" img-responsive img-markdown" /></p>
<h2>化学成分</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>元素</th>
<th>含量（%）</th>
</tr>
</thead>
<tbody>
<tr>
<td>Al</td>
<td>3.5 ~ 4.3</td>
</tr>
<tr>
<td>Cu</td>
<td>0.7 ~ 1.1</td>
</tr>
<tr>
<td>Mg</td>
<td>0.03 ~ 0.06</td>
</tr>
<tr>
<td>Zn</td>
<td>余量</td>
</tr>
</tbody>
</table>
<h2>物理性能</h2>
<h3>密度</h3>
<ul>
<li><strong>密度</strong>：6.7 g/cm³</li>
</ul>
<p dir="auto"><img src="/uploads/default/original/1X/1379cedd0b3e5a7bd0e94037cec0d737ffc7347c.jpeg" alt="1379cedd0b3e5a7bd0e94037cec0d737ffc7347c.jpeg" class=" img-responsive img-markdown" /></p>
<h3>熔点</h3>
<ul>
<li>和Zamak 3差不多，压铸温度也是 415 ~ 435℃</li>
</ul>
<h3>力学性能（压铸态）</h3>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>性能</th>
<th>数值</th>
</tr>
</thead>
<tbody>
<tr>
<td>抗拉强度</td>
<td>320 ~ 360 MPa</td>
</tr>
<tr>
<td>屈服强度</td>
<td>250 ~ 280 MPa</td>
</tr>
<tr>
<td>伸长率</td>
<td>5 ~ 10 %</td>
</tr>
<tr>
<td>硬度</td>
<td>85 ~ 95 HB</td>
</tr>
</tbody>
</table>
<h2>性能对比Zamak 3</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>性能</th>
<th>Zamak 3</th>
<th>Zamak 5</th>
</tr>
</thead>
<tbody>
<tr>
<td>强度硬度</td>
<td>较低</td>
<td><strong>较高</strong></td>
</tr>
<tr>
<td>耐磨性</td>
<td>一般</td>
<td><strong>更好</strong></td>
</tr>
<tr>
<td>流动性</td>
<td>最好</td>
<td>稍差</td>
</tr>
<tr>
<td>电镀性能</td>
<td>最好</td>
<td>良好</td>
</tr>
<tr>
<td>伸长率韧性</td>
<td>更好</td>
<td>稍低</td>
</tr>
</tbody>
</table>
<h2>适用场景</h2>
<p dir="auto">Zamak 5适合对<strong>强度硬度有要求</strong>的承力零件：</p>
<ul>
<li>汽车配件、门把手</li>
<li>机电设备结构连接件</li>
<li>锁具、锁芯配件</li>
<li>工具手柄</li>
<li>需要一定耐磨性的零件</li>
</ul>
<h2>选型建议</h2>
<ul>
<li>如果不知道选什么，或者只是装饰件 → <strong>Zamak 3</strong>性价比更高</li>
<li>如果零件受力，需要更好的强度耐磨性 → <strong>选Zamak 5</strong></li>
<li>如果要求超高硬度耐磨性 → Zamak 2</li>
</ul>
<h2>常见问题</h2>
<p dir="auto"><strong>Q：Zamak 3和Zamak 5价格差多少？</strong><br />
A：差不太多，一般Zamak 5比Zamak 3贵 5-10%，如果强度够用选Zamak 3就行。</p>
<p dir="auto"><strong>Q：可以电镀吗？</strong><br />
A：可以，电镀性能比Zamak 3稍差一点，但一般使用没问题。</p>
<hr />
<p dir="auto"><em>本文由模极社发布</em></p>
<hr />
<h3><img src="https://forum.mj7.cn/assets/plugins/nodebb-plugin-emoji/emoji/android/1f4cb.png?v=ri5u9ft48ro" class="not-responsive emoji emoji-android emoji--clipboard" title=":clipboard:" alt="📋" /> 相关标准参考</h3>
<ul>
<li>GB/T 230.1 金属洛氏硬度试验</li>
</ul>
<hr />
<h3><img src="https://forum.mj7.cn/assets/plugins/nodebb-plugin-emoji/emoji/android/1f517.png?v=ri5u9ft48ro" class="not-responsive emoji emoji-android emoji--link" title=":link:" alt="🔗" /> 你可能还感兴趣</h3>
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<p dir="auto"><img src="https://forum.mj7.cn/assets/plugins/nodebb-plugin-emoji/emoji/android/1f4d6.png?v=ri5u9ft48ro" class="not-responsive emoji emoji-android emoji--book" title=":book:" alt="📖" /> <strong>更多行业百科</strong></p>
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<hr />
<p dir="auto">还有什么补充参数吗？一起完善。</p>
]]></description><link>https://forum.mj7.cn/topic/2120/压铸锌合金-zamak5-模具行业从业者必备知识手册</link><generator>RSS for Node</generator><lastBuildDate>Tue, 11 Aug 2026 19:04:48 GMT</lastBuildDate><atom:link href="https://forum.mj7.cn/topic/2120.rss" rel="self" type="application/rss+xml"/><pubDate>Mon, 20 Apr 2026 01:58:43 GMT</pubDate><ttl>60</ttl></channel></rss>