双相不锈钢的焊接工艺研究毕业论文VIP专享

学 号 1010131030 _ 毕 业 论 文（设计） 课 题 双相不锈钢的焊接工艺讨论 学生罗 浩 院 部机械工程学院 专业班级 10 金属材料工程（ 2 ）班 指导老师 付 双 二〇一四年 六 月双相不锈钢的焊接工艺讨论摘 要双相不锈钢是由奥氏体和铁素体两相组织按一定比例所组成，它兼有奥氏体不锈钢和铁素体不锈钢的性能。与单相组织的不锈钢相比较，具有强度高的特征。近年来，双相不锈钢应用围迅速扩大，已成为奥氏体不锈钢在许多应用领域最有力的竞争对手。本论文首先介绍双相不锈钢的定义、分类和性能以与其部组织和化学成分,并且具体对每一种化学成分进行介绍.然后阐述针对不同的双相不锈钢焊接方法的选择,焊接设备的选用,焊接材料的选择,焊接工艺参数的制定等等.最后以 2205 双相不锈钢为例重点阐述其焊接工艺讨论。关键词：焊接工艺;焊接参数;焊条电弧焊。The Welding Process of duplex stainless steelAbstractDuplex stainless steel is made of austenite and ferrite two-phase structure composed by a certain percentage, which combines the performance of austenitic stainless steel and ferritic stainless steels. Compared with the single phase stainless steel with high strength characteristics. In recent years, the rapidly expanding range of applications of duplex stainless steel, austenitic stainless steel has become the most powerful competitor in many applications. This paper introduces the definition of duplex stainless steel, classification and performance as well as its internal organization and chemical composition, and specific chemical constituents for each presentation. Then explained the choice for choosing different methods of duplex stainless steel welding, welding equipment, Finally in 2205 as an example focuses on the selection of welding parameters for welding materials, etc. to develop their research welding process.Keyword:Welding process; Process parameters; SMAW目 录摘要Abstract第 1 章 双相不锈钢····························...