SAF2205双相不锈钢焊接换热管热处理工艺及设备改进

摘要

为开发SAF2205双相不锈钢焊接管这一新产品,根据SAF2205双相不锈钢焊接管生产过程中母材会发生组织、力学性能及工艺性能改变的特点,通过改造部分加工设备和制定合理的在线固熔热处理工艺,获得了组织均匀、奥氏体质量分数40％～60％0和铁素体质量分数60％～40％的SAF2205双相不锈钢焊接换热管.%For development SAF2205 duplex stainless steel welded pipe for the new products, the mechanical properties and processing properties change characteristic of SAF2205 duplex stainless steel welded pipe during production process will occur on parent materials structure. Through transforming parts processing equipment and formulating rational melting heat treatment process of online solid, the organization uniform, including 40% - 60% austenitic and 60% ~40% of ferrite duplex organization SAF2205 duplex stainless steel welding heat exchange tube were obtained.