High-temperature mould pressing technology for pitch-based carbon composites is a rapid shaping technique improved from mould pressing technology, but it has many disadvantages, such as great investment in equipments, lower molding pressure and poor technological practicability. 高温模压工艺是由模压成型工艺演绎而来的一种快速成型技术,但在制备沥青基炭复合材料时,该工艺明显存在着装备投资大、模压压力低和工艺实用性差的不足。
The progress for Ti alloy in investment technology from aspects of smelting measures, molding material, binder, casting process were described. 概述钛合金的精密铸造技术在熔化方法、铸型材、粘结剂、铸造工艺方面取得的进展及两种较为先进的精密铸造方法&浮熔法和真空压铸法。