Conductor rail and preparation method thereof and super stainless steel power

Abstract

The invention relates to the technical field of surface property enhancement of a conductor rail and provides a conductor rail and a preparation method thereof and super stainless steel power. Raw materials, which are composed of nickel, chromium, molybdenum, carbon and iron, of the super stainless steel power have the advantages of good conductivity, low cost and the like. The conductor rail comprises an aluminum alloy matrix and the super stainless steel power. The conductor rail is prepared by spraying the super stainless steel power to the aluminum alloy matrix. The conductor rail has the advantages of low cost, small weight, easy mounting, corrosion resistance, good wear resistance, good economical benefit and the like. The preparation method of the conductor rail comprises the following preparation steps of: cleaning the spraying surface of the aluminum alloy matrix; roughening the spraying surface; and spraying the super stainless steel power to the spraying surface layer by layer and controlling the temperature at 50-150 DEG C. According to the preparation method provided by the invention, the binding strength between the coatings can be enhanced effectively, the resistance of the coating interface is reduced, the conducting ability is enhanced, and the wear-resistant service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of strengthening the surface performance of conductive rails, and in particular relates to a conductive rail, a preparation method thereof and super stainless steel powder. Background technique [0002] The rapid development of rail transportation has higher and higher performance requirements for equipment and components. Conductive rails are mainly used in electric rail transportation systems such as subways, light rails, and elevated rails to transmit electric energy to electric locomotives. [0003] Traditional conductor rails are made of low carbon steel. For example, the third rail of Beijing Subway and Tianjin Subway uses low carbon steel conductor rail. Foreign developed countries also used low carbon steel conductor rails at the beginning of the last century when the third rail method was used. [0004] However, traditional low-carbon steel conductor rails have high resistance, high power loss, hi...

AI Technical Summary

Problems solved by technology

The cladding plate is placed on the base body, and its two legs are inserted into the two longitudinal slits of the base body, through the inward and downward plastic bending deformation of the lugs on both sides of the base body, the legs of the cladding plate are clamped, and the base material is squeezed into the cladding plate In the concave structure on both sides, the cladding plate is tightened and tightly attached to the upper surface of the profile matrix, forming a certain strength of mechanical contact, thereby obtaining a certain electrical conductivity, but this kind of stainless steel wear-resistant contact cladding plate is thicker, Up to several millimeters, poor wear resistance, short service life of the wear layer;

[0008] (2) The contact between the wear-resistant cladding plate and the aluminum alloy substrate is mechanically bonded, and the bonding strength of the two is low, which may easily cause the wear-resistant cladding plate to fall off from the aluminum alloy surface;

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