摘要
随着我国核电新能源的发展,新型材料的需求也在不断的增加,铜/不锈钢加筋板是其中一种,具有重要工程应用价值,目前无法用常规的冷、热加工工艺进行生产。通过爆炸焊接法,采用一种新的"凸台式"装药形式,在支撑模板设计及其填充方案、工装等方面进行了深入研究,优化了焊接参数,并对成品的结合界面进行了剪切强度测试、金相观测、电镜扫描和显微硬度测试。检测结果表明:铜/不锈钢焊接结合面为波状冶金结合界面,在波峰两侧存在含金属氧化物的"冠状"漩涡,结合界面附近的晶粒被拉长变细,显微硬度显著升高,界面结合强度超过铜材。
With the development of nuclear power in China, the demand for new mater ials was also increasing. The copper / stainless steel plate was also a new material. It had important engineering application value. But it was unable to use conventional cold, hot processing technology for production. Taking the copper alloy panel and 316 L stainless steel plate as a test material ,a new ＂ convex table ＂ charge form was applied. Studies on the supporting template design and its filling scheme, the tool and the like were conducted, the welding parameters were optimized, the shear strength test, metallographic observation, electron microscopy and micro-hardness test were conducted in the interface. The test results showed that the copper/stainless steel weld joint surface was wave-like metallurgical bonding interface, that both sides of the peak presented a metal-oxide-containing ＂crown ＂ vortex, and that the grain in the vicinity of the bonding interface was elongated tapered, micro-hardness was greatly enlarged, and the interface bonding strength was significantly elevated above that of the copper material.
出处
《工程爆破》
2016年第5期92-96,共5页
Engineering Blasting
关键词
爆炸焊接
双金属材料
加筋板
结合界面
Explosion welding
Bimetallic material
Rib-reinforced plate
Interface
