金属材料连接的新方法——常温压接法

• 作 者: 刘中青
• 机 构: 吉林工学院材料系,
• 出 处: 机械工人
• 发表日期: 1987年06期
• 关键词: 压接 金属材料 凸凹不平 点接触 单位距离 子间 压碎 加工硬化现象 密封器 下压

一、常温压接的机理(见附图)常温压接法是近几年发展起来的连接金属的新方法。当两种金属材料(同种或异种)接合面间接近到A(埃)单位距离时,靠原子间引力的作用,使金属得到结合。压接初期的接合面是许多微小凸凹不平的点与点接触,这些接触点承受着非常大的压力而发生变形,使接触点间残留的氧化膜等杂质压碎,接合面达到真实的接触。然后,在强大的外力作用下,接合面的原子发生了位移和形成原子空

First, the mechanism of pressure at room temperature (see photo) At room temperature crimping method developed in recent years, a new way to connect the metal. When the two metal materials (same or different species) between the junction to the A (A) unit distance, by the role of atomic gravity, the metal is bonded. The initial bonding surface of the crimp is a number of small bumpy points in contact with the point, the contact point under great pressure and deformation, the contact point between the residual oxide film and other impurities crushed, the contact surface to achieve real contact. Then, under the strong external force, the bonding surface atoms are displaced and the formation of atomic vacancy