首页>
外国专利>
METHOD OF COOLING RAIL WELD ZONE, DEVICE FOR COOLING RAIL WELD ZONE, AND RAIL WELD JOINT
METHOD OF COOLING RAIL WELD ZONE, DEVICE FOR COOLING RAIL WELD ZONE, AND RAIL WELD JOINT
展开▼
机译:铁路焊接区的冷却方法,铁路焊接区的冷却装置以及铁路焊接接头
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▼