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Steel rail thermite welding gating system

An aluminothermic welding and pouring system technology, which is applied in the field of aluminothermic welding of rails, can solve problems such as hidden safety hazards, lack of slag removal structure, quality problems of welded joints, etc., and achieve the effects of weakening scouring, facilitating slag removal, and improving quality

Active Publication Date: 2016-12-07
洛阳双瑞橡塑科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the safety hazards in the above-mentioned existing rail aluminothermic welding products during the aluminothermic reaction, the lack of a clear slag removal structure during the molten steel flow, and the quality problems of the welded joints, the present invention provides a rail aluminothermic welding casting system

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  • Steel rail thermite welding gating system
  • Steel rail thermite welding gating system
  • Steel rail thermite welding gating system

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Embodiment Construction

[0036] The present invention will be further elaborated below in combination with specific embodiments.

[0037] Such as figure 1 , figure 2 As shown, it is a schematic diagram of the overall structure of the present invention. The system includes a sand mold 4, a crucible body 2 arranged above the sand mold 4, a crucible cover 1 matching the crucible body 2, a diverter plug 3 arranged inside the sand mold 4 and a set Base plate 5 at the bottom of sand mold 4.

[0038] Such as image 3 As shown, it is the diverter plug 3 of the rail aluminothermic welding gating system of the present invention. The diverter plug 3 is a concave arc-shaped structure on both sides of the central protrusion, and the curved surface is smoothly connected. The lowest position of the concave arc 19 is higher than the two sides of the diverter plug. 3. Located in the cavity formed by the upper part of the sand mold in the pouring system, the diverter plug 3 is fixed by the inclined plane structure ...

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Abstract

The invention relates to a steel rail thermite welding gating system. The system comprises a sand mold, a crucible body arranged above the sand mold, a crucible cover matched with the crucible body, a shunting plug arranged inside the sand mold, and a base plate arranged at the bottom of the sand mold. According to the system, a reaction crucible and a pouring gate system are both designed to be of a liquid deslagging structure, and the purity of molten steel in a purifying cavity is fully considered. The crucible top cover of the system is in a pneumatic layout mode, reaction high-temperature gas can be dredged and high-temperature liquid-solid splash can be blocked. Two risers at the bottom of the sand mold in the system communicate with each other, and thus the casting feeding capacity is enhanced.

Description

technical field [0001] The invention relates to the technical field of aluminothermic welding of rails, in particular to a pouring system for aluminothermic welding of rails. Background technique [0002] With the development of the railway transportation industry, the use of rail aluminothermic welding products is increasing day by day; After the flux is ignited at high temperature in the disposable crucible, a violent chemical reaction occurs and a large amount of heat is released to form high-temperature aluminothermic molten steel. The molten steel is injected into the preheated welding sand mold cavity, and the high-temperature molten steel passes through the specially designed sand mold to melt the part After the end face of the rail to be welded is cooled and solidified, the rail to be welded is connected into a whole. Thermite welding has the advantages of simple equipment, convenient use, cost-effective, safe and reliable, no external power supply, etc., and is wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K23/00
CPCB23K23/00
Inventor 段勇奇王志强瞿连辉李强
Owner 洛阳双瑞橡塑科技有限公司
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