Positioning support forging method for railway contact net and positioning support
A technology of positioning support and catenary, applied in the field of forging processing, can solve the problem of poor overall quality of positioning support, and achieve the effect of improving fatigue life, ensuring operation safety and improving comprehensive mechanical performance.
Pending Publication Date: 2022-06-10
SICHUAN LONGTENG RAILWAY EQUIP
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AI Technical Summary
Problems solved by technology
[0003] The main purpose of this application is to provide a forging method and a positioning support for a positioning support for railway catenary, aiming at solving the technical problem that the overall quality of the positioning support made by the existing casting process is poor
Method used
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Embodiment 1
[0045] Final forging: the heated pre-forging is put into the forming die, and precision forging is carried out to obtain the forming.
Embodiment 2
[0053] Final forging: the heated pre-forging is put into a forming die, and precision forging is carried out to obtain a formed.
Embodiment 3
[0060] Final forging heating: the pre-forging is heated to 475 ° C;
[0061] Final forging: the heated pre-forging is put into the forming die, and precision forging is carried out to obtain the forming.
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Abstract
The invention discloses a forging method of a positioning support for a railway overhead line system and the positioning support. The forging method comprises the following steps of blank material selection, wherein a blank material meeting the pressure machining and manufacturing requirements is selected; blanking: cutting the blank material to obtain a blank; pre-forging heating: heating the blank to 460 + / -15 DEG C; the heated blank is put into a pre-forging die, the initial forging temperature is 450 DEG C, and a pre-forged piece is obtained; finish forging heating is conducted, specifically, the pre-forged piece is heated to 460 + / -15 DEG C; and finish forging is conducted, specifically, the heated pre-forged piece is put into a forming die to be subjected to precision forging, and a formed piece is obtained.The forging method has the advantages that the formed piece is high in forming quality, and the use requirement of a railway contact net in a special scene is met.
Description
Forging method of positioning support for railway catenary and positioning support technical field The application relates to the technical field of forging, in particular to a method for forging a positioning support for a railway catenary and Position the support. Background technique [0002] The positioning support for the installation and positioning of the positioner in the electrified railway catenary, including the L-shaped positioning The support (as shown in Figure 3) and the RL-type positioning support (as shown in Figure 4) were originally made of aluminum alloy gravity casting process, and the material is AlSi7Mg0.6, the internal structure of the casting made by the casting process is loose, and it is easy to produce defects such as pores and cracks. are relatively low, and there are problems of coarse grains, especially poor plasticity and toughness, requiring no impact or abnormal exposure during storage, installation, and use. Otherwise, cracks or eve...
Claims
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IPC IPC(8): B21J5/00B21J1/06
CPCB21J5/002B21J1/06
Inventor 李恺祥唐永红付锡良
Owner SICHUAN LONGTENG RAILWAY EQUIP