研究了用于复杂型腔结构钛合金精铸件的四种不同制壳工艺。研究结果显示,采用背层浆料进行制壳并且不进行撒砂操作的制壳工艺可以达到理想效果,该工艺制作成本低,型壳干燥良好,其室温抗弯强度满足使用要求,而且便于车间操作,使用该工艺浇铸的三件前封严装置一次获得成功。 Four different shell-making processes for the casting of titanium alloy in complex cavity structures were studied. The results show that the use of the back layer of the slurry shell and do not sand-making shell making process can achieve the desired effect, the process of low-cost production, the shell dry well, the room temperature flexural strength to meet the requirements, and ease of workshop Operation, the use of the process of casting three sealed before the success of the device.