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Fixed railroad frog wing rail made of composite parts

A composite component and fixed technology, which is applied to roads, tracks, and point switches, and can solve problems such as increased cost of frogs

Inactive Publication Date: 2005-12-28
唐山铁路道岔厂 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If better materials or rolled frog wing rails are used, the cost of the frog will increase significantly

Method used

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  • Fixed railroad frog wing rail made of composite parts

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Experimental program
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Embodiment Construction

[0012] Specific embodiments of the present invention are given below in conjunction with the accompanying drawings. The frog wing rail described in this embodiment is remade from the whole rail, and consists of three parts: the toe end part 1, the electroslag casting part 2, and the transition section 3. After the specific size of the electroslag casting part 2 is selected, it is cut off from the corresponding part of the 40mm section to its throat, and from its working top surface to 10mm below, and then the cut part is passed through by wear-resistant steel. The method of electroslag casting is one-time melting and casting, and the wear-resistant steel can be bainite steel or Austenitic steel. This embodiment not only makes the wing rail have a higher service life and a required shape, but also has a lower manufacturing cost.

[0013] The embodiment of the present invention can also be: the toe part 1, the electroslag casting part 2, and the transition section 3 are manufac...

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PUM

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Abstract

The invention relates to the manufacturing technology of a railway frog, in particular to a fixed railway frog wing rail made of composite parts. The frog wing rail is at least from its section corresponding to the 40mm top width of the core rail to its throat, and at least from its working top surface to the lower part of 10mm, it is formed by electroslag casting with wear-resistant steel at one time. The frog wing rail has high mechanical properties, which can greatly improve the service life of the frog, and has the shape required by the frog wing rail, and can be directly welded to the rail on the line to meet the ultra-long seamless line required at low cost.

Description

Technical field: [0001] The invention relates to the manufacturing technology of a railway frog, in particular to a fixed railway frog wing rail made of composite components. Background technique: [0002] At present, the fixed frogs commonly used on railways are high-manganese steel frogs cast in sand molds, which are poor in density, performance and structural uniformity. According to statistics, the failure of most cast high manganese steel frog wing rails is caused by cracks, peeling off blocks and wear at the part between the section corresponding to the 40mm top width of the core rail and the throat. If the quality of this part is to be greatly improved by sand casting, it will not only be technically difficult, but will also greatly increase production costs, and due to unavoidable casting defects such as shrinkage cavities, shrinkage porosity, pores, and cracks, so far Frogs cannot be integrally cast with other steels. [0003] High-manganese steel has the disadvan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D23/10E01B7/10
Inventor 谷玉忠宋哲麟冯炳成
Owner 唐山铁路道岔厂