几种铝硅系耐火材料型壳的性能研究

摘要

熔模精密铸件的质量与型壳有密切关系，熔模精密铸造企业应该明确所使用的制壳材料和制壳工艺对型壳质量的影响。文章采用了公司已经试验较成熟且稳定的制壳工艺，选用硅溶胶为粘结剂，研究了几种铝硅系耐火材料型壳的性能，明确了各种型壳的适用性。%The quality of lost wax precision castings is closely related to shells. It is necessary for investment casting companies to un⁃derstand the influence of shell-making materials and process employed on the quality of shells. By using the shell-making process which has been tested maturly and stably in our company and choosing silica sol as binder, the performance of shells made of several Al-Si refractory materials is studied and the applicability of various shells is clarified in this paper.