<p><strong>Annealing:</strong> Stress relief, soften for machining</p>
<p><strong>Quenching:</strong> Hardening to HRC 55-65</p>
<p><strong>Tempering:</strong> Reduce brittleness, adjust final hardness</p>
<p><strong>Nitriding:</strong> Surface hardening 0.1-0.3mm case depth</p>

<p>Heat treatment accounts for 5-10% of total mold cost but affects mold life by 300%.</p>

<p>Full guide: https://www.mfgabc.com/guides/mold-heat-treatment-china.html</p>

<p>How do you verify heat treatment quality?</p>

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<p>你们厂里是怎么处理的？来评论区聊聊。</p>