摘要
针对现有温度场测定方法的不足，提出一种铝合金端淬时轴向温度场测定的新方法。该方法热电偶安装位置准确并可接近样品淬火端面位置，与样品结合牢固、接触良好，测温响应迅速，热电偶受外界环境影响小，可精确测定近淬火端面温度场及轴向一维传热情况。用本试验方法测得的Al-6．4zn-2．3Mg-2．1cu超高强铝合金室温水端淬时，距淬火端面3mm、6mm处在温度区间483℃-200℃的平均冷却速率分别为353．8℃／s、38．2℃／s。
A new method for determining the axial temperature field during aluminum alloy end quenching was proposed to cover the shortage of the present one. This new method had many advantages, such as accurate locations of thermocouples installation, close position to the sample quenching end, firm bond and good contact with the specimen, rapid response to temperature measurement,little influence of environment on thermocouples,precise measure ment of the near quenching face temperature field, and accurate determination of the axial one-dimensional heat transfer. One end of A1-6.4Zn-2.3Mg-2.1Cu ultra-high strength alumi-num alloy obtained by this experiment was water quenched at room temperature. Its average cooling rates were 353. 8℃/s and 38.2℃/s respectively at 3 mm and 6 mm from the quenching end at 483℃ - 200℃
出处
《轻合金加工技术》
CAS
北大核心
2013年第10期45-49,共5页
Light Alloy Fabrication Technology
关键词
超高强铝合金
厚板
末端淬火
温度场
ultra-high strength aluminum alloy
plate
end quenching
temperature field
