摘要
针对不锈钢/碳钢复合板爆炸-轧制复合工艺存在的主要问题,提出了钎焊—热轧制备新技术,研究了主要工艺参数对钎焊复合板结合强度的影响,分析了钎焊复合板热轧的结合机理,测试了复合板的主要力学性能。结果表明,采用自制的银基钎料可以实现不锈钢/碳钢有效的钎焊结合,理想的钎焊工艺参数为:钎焊温度755～770℃,钎焊时间2.5～3min。热轧过程中钎料层表现出了良好的塑性,压下率为40%时,轧后钎料层未出现断裂、分层。轧制中钎料层同基体形成的金属键显著提高了不锈钢/钎料界面的结合强度,热轧复合板的抗剪强度达到了342.6MPa。
Aiming at the main problems in the explosion-rolling bonding process of stainless steel/carbon steel cladding plate,a new technique of brazing/hot-rolling method was put forward,and the effect of main process parameter on the bonding strength of brazing cladding plate was studied,and the bonding mechanics of hot-rolling cladding plate was analyzed,and the main mechanical properties of cladding plate was tested.The results showed that an effective brazing bonding can be gotten by using home-made silver base solder.The oplimized processing parameters are as follows:brazing temperature is 755-770 ℃ and holding time is 2.5-3 min.Soldered layer shows good plasticity during hot-rolling process.When the deformation rate was 40%,there was no fracture and lamination in soldered layer after rolling.Metallic bonding formed between the soldered layer and the base metal,and the bonding strength of the stainless steel/soldered interface obviously increased,and the shear strength of cladding plate after hot-rolling can be reached 342.6 MPa.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2007年第5期25-28,共4页
Transactions of The China Welding Institution
基金
国家自然科学基金资助项目(50174019)
辽宁省博士科研启动基金资助项目(20061017)
关键词
不锈钢
碳钢复合板
钎焊
钎料
热轧
压下率
stainless steel/carbon steel cladding plate
brazing
solder
hot-rolling
deformation rate
