普通结构钢焊条补焊铸铁一例

• 作 者: 任典生
• 机 构: 第一汽车制造厂青岛汽车厂,
• 出 处: 焊接技术
• 发表日期: 1993年01期
• 关键词: 普通结构钢 补焊 焊接接头 摩擦压力机 焊接材料 交变应力 焊前准备 精确位置 施焊 焊接工艺

近来,普通焊条铸铁冷焊技术被各行各业纷纷采用,它不仅可以节约大量的焊接材料费用,而且所获焊接接头的机械性能并不比镍焊条的接头差。最近,我们进行了一次成功的尝试,现介绍如下:1 铸件我厂一台260t 摩擦压力机的连杆(材料为 HT-200),曾因安装失误产生一小裂纹,因其负载较轻,当时并未受到重视。但该件运动频繁,交变应力的作用使裂纹不断扩展,及至本次维修,裂纹已深入截面一半,如

Recently, the common electrode cast iron cold welding technology has been adopted by all walks of life, it can not only save a lot of cost of welding materials, and the mechanical properties of welded joints obtained is not worse than the joints of nickel electrodes. Recently, we made a successful attempt, are described as follows: 1 castings I plant a 260t friction press connecting rod (material HT-200), had a small crack due to installation errors, because of its light load, At that time did not receive the attention. However, the frequent movement of the piece, the role of alternating stress so that the cracks continue to expand, and to this maintenance, the crack depth has been half the cross section, such as