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丝网多孔发汗冷却材料是以金属丝网为原料,经高精度的轧制和真空烧结制成的多孔合金板材。材料有良好的渗透性能和渗透均匀性、较好的抗氧化性能。研制的材料工艺保证了材料具有较高的机械性能。同时,还研制出层间结合强度(即横向拉伸强度)的测试方法。 该材料在液氢液氧火箭发动机上通过了长程试车考验,材料的主要性能指标达到和超过国外同类材料的水平。我国发射通讯卫星的运载火箭中的氢氧发动机使用了丝网多孔发汗冷却面板,取得很好的使用效果。
Screen porous sweat cooling material is a metal mesh as raw material, the high-precision rolling and vacuum sintering made of porous alloy sheet. Materials have good permeability and penetration uniformity, better oxidation resistance. Developed material technology to ensure that the material has high mechanical properties. At the same time, also developed a test method of bonding strength between layers (ie transverse tensile strength). The material in the liquid hydrogen rocket engine passed a long-term test test, the main performance indicators of materials to meet and exceed the level of similar foreign materials. China’s launch of satellite communications carrier rocket oxyhydrogen engine using porous mesh porous sweat cooling panel, and achieved good results.