公开(公告)号：US3737978A

公开(公告)日：1973-06-12

申请号：US3737978D

申请日：1971-05-05

申请人： AERONCA INC

发明人： RATHBUN R

IPC分类号： B23K1/00 ,  B23K31/02

CPC分类号： B23K1/0014

摘要： A method and apparatus are disclosed for brazing articles such as honeycomb sandwich structures. The apparatus includes a cold wall box-like housing separable into upper and lower sections. Each section carries a ceramic die member provided with passageways terminating in small ports for conducting a cooling fluid adjacent to the work. The workpiece is heated by electrical resistance heater strips passing above and below the workpiece. Means are provided for evacuating the housing and back-filling it with argon. When the workpiece is brought to brazing temperature, two expandable bags are inflated. One bag raises the lower die section to form a general fit with the upper one. The second bag is in direct contact with the upper face of the workpiece and exerts a uniform pressure normal to its surface. After brazing, the bags are deflated and chilled argon is introduced through the die passages to cool the work. Other features include localized temperature control by electron emission or cooling tubes and vapor removal by means of a cold trap.

摘要翻译： 公开了用于钎焊诸如蜂窝夹层结构的物品的方法和装置。 该装置包括可分成上部和下部的冷壁盒形壳体。 每个部分承载陶瓷模具构件，其设置有终止于小端口的通道，用于传导与工件相邻的冷却流体。 工件由通过工件上方和下方的电阻加热器条加热。 提供用于抽真空壳体并用氩气回填的装置。 当工件达到钎焊温度时，两个可膨胀袋被充气。 一个袋子提起下模具部分以与上部模具部分形成一般的配合。 第二个袋子与工件的上表面直接接触，并施加与其表面垂直的均匀的压力。 在钎焊之后，袋子被放气，并且通过模具通道引入冷却的氩气以冷却工件。 其他特征包括通过电子发射或冷却管的局部温度控制和通过冷阱的蒸气去除。