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本文研究了适应于ＣＯ２水玻璃砂型的自硬性转移涂料，提出基于快速原型技术的非占位涂层快速精确成形技术。采用配置的涂料和ＣＯ２水玻璃砂型造型工艺，以较低的生产成本和较短的造型时间，浇注出精确成型的散热板压制模具，产品的尺寸精度达到ＣＴ６～８，表面粗糙度为Ｒａ３．２～６．３μｍ。
In this paper, the self-hardening transfer coating adapted to CO2 sodium silicate sand was studied, and the rapid prototyping technology of non-occupying coating based on rapid prototyping technology was proposed. Using the configured coating and the CO2 water glass sand molding process, the precision molding heat sink is pressed into the mold with a lower production cost and a shorter molding time. The product has a dimensional accuracy of CT6 to 8 and a surface roughness of Ra3. 2 ~ 6.3μm.