Glass mold with high heat-conducting property and preparation method thereof

The invention relates to a glass mold with high thermal conductivity, the glass mold is made of gray cast iron and comprises the following chemical components in percentage by mass: 3.50-3.85% of C, 1.75-2.10% of Si, 0.40-0.80% of Mn, 0.15-0.19% of Ti, 0.20-0.45% of Ni, 0.15-0.35% of Cu and the balance of iron and inevitable impurities, and an inner cavity with A + D type graphite is formed through a reasonable element ratio, a pouring method and an extremely cold mode, so that the glass mold has high thermal conductivity, and the glass mold is suitable for large-scale production. The invention further provides a preparation method of the high-thermal-conductivity glass mold, so that the thermal conductivity of the mold is further enhanced, and the service life of the glass mold is prolonged. 本发明涉及高导热性能玻璃模具，材质为灰铸铁，由以下质量百分数的化学成分组成：C：3.50-3.85%，Si：1.75-2.10%，Mn：0.40-0.80%，Ti：0.15-0.19%，Ni：0.20-0.45%，Cu：0.15-0.35%，其余为铁和不可避免的杂质，通过合理的元素配比、浇注方法、极冷方式，形成内腔具有A+D型石墨，从而具有较高的导热性能，还提供高导热性能玻璃模具制备方法，进一步使模具增强其导热性能，从而增加玻璃模具的使