精密铸造用连续纤维增强陶瓷模壳的制作工艺研究.doc

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摘要：精密铸造所用陶瓷模壳，目前通常采用水玻璃或硅溶胶为粘结剂，通过反复粘浆、淋砂、干燥制成。对于尺寸较大的精铸件，通常需要通过增加模壳层数（厚度），来增大模壳的强度。这往往会带来，操作不便，模壳易开裂等问题。本文通过碳纤维织物增加的方法，开发一种高强度薄壁精铸模壳的制作方法，并对其进行工艺参数优化

关键词：硅溶胶   精密铸造   碳纤维增强

  

Abstract：Ceramic shell mold used in precision casting, now often used sodium silicate and silica sol as binder and is made by repeated mud, pouring sand and drying.  We often increase the mold shell layer (thickness) to increase strength of mold shell for large castings。This will often bring some questions such as inconvenience of the operation, mold shell easy cracking. This paper conducted a high-strength fiber-reinforced thin shell mold Shell technology research and development, and determined the best system shell process parameters.

Keywords：Silicon   Precision casting    Carbon fiber reinforced