Active connecting agent for braze welding of aluminum alloy honeycomb plate and reactive braze welding method

The invention relates to an active connecting agent for braze welding of an aluminum alloy honeycomb plate and a reactive braze welding method. The active connecting agent comprises the following components in percent by mass: 75-85% of CsZnF3 powder, 5-10% of absolute ethyl alcohol and 5-20% of a liquid state metal Ga. The aluminum honeycomb plate is obtained by coating the active connecting agent to a honeycomb core bar and to-be-welded surfaces of upper and lower panels and placing the assembled honeycomb core bar and to-be-welded surfaces at a high temperature for reactive braze welding. By using the active connecting agent, highly reliable and compact connection without brazing filler metals and brazing flux among the aluminum alloy honeycomb plates can be achieved. 本发明涉及一种铝合金蜂窝板钎焊用活性连接剂以及反应钎焊方法，活性连接剂各组分质量百分比为：CsZnF粉75-85%、无水乙醇5-10%以及液态金属Ga5-20%。将活性连接剂涂覆在蜂窝芯条和上下面板的待焊面，装配后置于高温下进行反应钎焊，得到铝合金蜂窝板。利用本发明的活性连接剂能实现铝合金蜂窝板之间高可靠、高致密、无钎料以及无钎剂的连接。