A stepped vertical convex curved bridge frame and its preparation method

Abstract

The invention discloses a step type vertical convex bending through bridge frame. The step type vertical convex bending through bridge frame comprises symmetrically arranged groove frames and a transverse support arranged between the groove frames. The groove frames and the transverse support of the step type vertical convex bending through bridge frame are made of the same material. The material comprises the following components: C, Si, Mn, Ni, Mo, Cr, N, Cu, Al, Ti, S, P, Nb, V and a rare earth element, the balance being Fe and unavoidable impurities. The rare earth element comprises the following components: lanthanum, cerium, praseodymium, dysprosium, holmium, gadolinium and yttrium, the balance being lanthanide-series rare earth. The invention also provides a preparation method of the step type vertical convex bending through bridge frame. The preparation method is simple and easily implemented, the preparation cost is low, pollutants are not generated in a production technical process, and the prepared step type vertical convex bending through bridge frame is good in processing performance and high in strength and is highly guaranteed in quality.

Description

technical field [0001] The invention relates to a bridge frame and a preparation method thereof, in particular to a stepped vertical convex curved bridge frame and a preparation method thereof. Background technique [0002] The cable tray is a rigid structural system with closely connected supporting cables composed of straight sections, bends, components, brackets, hangers, etc. of trays or ladders. It is mainly used for comprehensive wiring such as power supply supporting power transmission and wired telecommunication transmission, laying cables This kind of supporting member is most widely used in the supply department of the store, the power transmission system of centralized power supply and distribution of industrial and mining enterprises, hotels, and comprehensive office facilities, and wired telecommunications; the existing cable bridges are mostly linear, and the shape Relatively single, when the cable needs to change direction, only two straight cables can be conn...

AI Technical Summary

Problems solved by technology

[0002] The cable tray is a rigid structural system with closely connected supporting cables composed of straight sections, bends, components, brackets, hangers, etc. of trays or ladders. It is mainly used for comprehensive wiring such as power supply supporting power transmission and wired telecommunication transmission, laying cables This kind of supporting member is most widely used in the supply department of the store, the power transmission system of centralized power supply and distribution of industrial and mining enterprises, hotels, and comprehensive office facilities, and wired telecommunications; the existing cable bridges are mostly linear, and the shape Relatively single, when the cable needs to change direction, only two straight cables can be connected vertically, the transition is not smooth, and the cable is bent too seriously, often resulting in damage to the bend, affecting normal use, and reducing the service life of the cable. In order to overcome the above defects, those skilled in the art have developed a stepped vertical convex bend-through bridge for the laying of cables, which will not cause excessive bending of the cables and prolong the service life of the cables , but also improve work efficiency, facilitate the laying of cables, and facilitate the construction of personnel