Opening-and-closing-type steel rail flash welding joint normalizing induction coil

Abstract

The invention discloses an opening-and-closing-type steel rail flash welding joint normalizing induction rail. The opening-and-closing-type steel rail flash welding joint normalizing induction rail isformed by a right side section, a left side upper section and a left side lower section which are connected; the left side upper section and the right side upper section are bent into shapes which are matched with the left side and the right side of a steel rail joint; the upper end of the left side upper section is fixedly connected to the upper end of the right side section through a connectiondevice; the lower end of the left side upper section is hinged to the upper end of the left side lower section through a copper hinge; the upper side upper section can be opened in a manner of rotating leftwards around the copper hinge by opening the connection device; the lower part of the right side section and the left side lower section are horizontally bent toward the rail bottom of the steel rail joint and then vertically extend downwards from the middle part of the rail bottom to clamp a first insulated plate between the right side section and the left side lower section, so that the right side section is isolated from the left side lower section; a left junction plate is clamped between the first insulated plate and the left side lower section; a right junction plate is clamped between the first insulated plate and the lower part of the right side section; the right side section, the left side upper section and the left side lower section are all formed by bending metal pipes;and two ends of each metal pipe are separately provided with a cooling connection mouth.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of rail welded joints, and in particular relates to a split-type rail flash welded joint normalizing induction coil. Background technique [0002] At present, when rail flash welded joints are normalized, the rail is heated longitudinally along the profiled cross-section perpendicular to the induction coil. This method is suitable for the case where the cross-sectional shape of the rail before and after the welded joint is the same or similar. However, for the special-shaped rail whose cross-section before and after the welded joint is obviously larger than that of the flash welded joint, it is difficult to penetrate the induction coil or damage the inner wall of the coil after penetration, making the inductor easy to damage. Contents of the invention [0003] The invention provides a split-type rail flash welding joint normalizing induction coil to overcome the deficiencies of the prior ...

AI Technical Summary

Problems solved by technology

However, for special-shaped rails whose front and rear rail cross sections are significantly larger than the flash welded joints, it is difficult to penetrate the induction coil or damage the inner wall of the coil after penetration, making the inductor easy to damage

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