钼基高温合金蜂窝结构的真空扩散焊连接方法

• Format: Patent
• Language: Chinese
• Published: 01.04.2022
• Subjects: APPARATUS THEREFOR; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

本发明提供一种钼基高温合金蜂窝结构的真空扩散焊连接方法，包括：生成电镀液；使用纯镍板作为阳极材料，钼基高温合金零件为阴极材料，使用电镀液在50℃的恒温水浴槽中进行电镀；装配钼基高温合金零件；装配后装入真空钎焊炉中，并对钼基高温合金零件加压至第一压力开始抽真空，直至真空度≤1×10-4Pa；将真空钎焊炉加热至第一温度，对钼基高温合金零件加压至第二压力；在压力保持在第二压力时，将真空钎焊炉加热至第二温度；保温预设时长；保温结束后停止对真空钎焊炉加热，随炉冷却至600℃，将压力按1MPa/min的减压速率减至0MPa，钼基高温合金零件空冷至20℃。可以有效减少焊缝内气孔、裂纹和未焊合缺陷，而获得合格的焊缝。 The invention provides a vacuum diffusion welding connection method of a molybdenum-base high-temperature alloy honeycomb structure. The method comprises the steps that an electroplating solution is generated; a pure nickel plate serves as an anode material, a molybdenum-base high-temperature alloy part serves as a cathode material, and the electroplating solution is used for conducting electroplating operation in a 50-DEG C constant-temperature water bath tank; the molybdenum-base high-temperature alloy part is assembled; after the molybdenum-base high-temperature alloy part is assembled, themolybdenum-base high-temperature alloy part is put into a vacuum brazing furnace and pressurized to enable the pressure