热处理保温时间对Q245R焊接力学性能的影响研究

Effect of Heat Treatment Holding Time on Mechanical Properties of Q245R Welding

对Q245R钢板采用H08MnA与H10Mn2两种焊材进行焊接试验,采用相同热处理温度、不同保温时间、相同冷却方式的热处理工艺进行对比试验研究,试验证明在不同的保温温度下,其抗拉强度随保温时间的延长而降低。

The welding test of Q245R steel plate is carried out with two welding materials H08MnA and H10Mn2. The heat treatment process with the same heat treatment temperature, different holding time and the same cooling mode is compared. The test shows that the tensile strength decreases with the extension of holding time at different holding temperatures.