Graphite release agent for titanium alloy aviation blade forging and preparation method thereof

Abstract

This invention relates to the field of mold release agent technology, specifically to a graphite mold release agent for forging titanium alloy aircraft blades and its preparation method; the graphite mold release agent for forging titanium alloy aircraft blades comprises the following components by mass percentage: 35-40% lower layer reactive lubricating graphite additive combination, 25-30% upper layer sacrificial activated graphite additive combination, 12-15% deionized water, 8-10% anhydrous ethanol, 3-4% sodium polyacrylate, 1-2% polydimethylsiloxane, and 1-2% polyether-modified poly... The invention comprises siloxane, 3-4% organosilicon resin, and 2-3% polyvinyl alcohol. It achieves a dual-layer, time-sequential synergistic design of a lower reactive lubricating layer and an upper sacrificial activation layer. The upper aluminothermic reaction provides energy to trigger the in-situ generation of a graphite-calcium fluoroborate composite superlubricating phase in the lower layer. Combined with the rare-earth cerium oxide surface modification mechanism, it solves the key problems of traditional graphite release agents being easily oxidized at high temperatures and having poor resistance to titanium adhesion. This provides a new high-performance, long-life, and easy-to-clean graphite release agent solution for the precision forging of titanium alloy aerospace blades.