首页>
外国专利>
Method of cooling rail weld zone, and rail weld joint
Method of cooling rail weld zone, and rail weld joint
展开▼
机译:冷却钢轨焊接区的方法以及钢轨焊接接头
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention provides a method of cooling a rail weld zone. The method includes a first rail web portion cooling process of cooling a rail web portion cooling region of the rail weld zone in a part of a temperature range until the completion of transformation from austenite to pearlite, a second rail web portion cooling process of cooling the rail web portion cooling region after the entire rail web portion of the rail weld zone is transformed to pearlite, a foot portion cooling process of cooling a foot portion of the rail weld zone, and a head portion cooling process of cooling a head portion of the rail weld zone. When cooling time of the first and second rail web portion cooling processes is t minute, a k value satisfies an expression represented as −0.1t+0.63≦k≦−0.1t+2.33.
展开▼