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Nickel-copper alloy rod or profile for high-speed electrified railway in CY state

A technology for electrified railways and copper alloys, applied in the field of nickel-silicon-copper alloy rods or profiles, can solve the problems of long process flow and high cost, and achieve the effects of reduced production costs, high elongation strength, and good conductivity

Active Publication Date: 2011-10-05
中铝洛阳铜加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Publication number: CN101289716A discloses a processing technology patent of nickel-silicon bronze alloy material, wherein the bar processing technology adopts: casting, heating, extrusion, stretching, annealing, pickling, stretching, bright annealing, finishing, Warehousing; it provides a nickel-silicon bronze alloy material in M ​​state (annealed (annealed)) state, and then processed into catenary clamps for electrified railways, but its performance can only reach about HB150: and there is a process The disadvantages such as longer flow process and higher cost, in order to solve the above problems, the present invention provides the following technical solutions

Method used

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  • Nickel-copper alloy rod or profile for high-speed electrified railway in CY state
  • Nickel-copper alloy rod or profile for high-speed electrified railway in CY state

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0017] Processing and manufacturing CuNi2Si alloy profiles of φ24X6000mm in CY state, the process flow adopts:

[0018] Melting and casting: Nickel-silicon-copper alloy material components are weighed according to weight ratio. Ingredients: nickel 1.6-3.4%, silicon 0.15-1.1%, manganese ≤ 1.0%, iron ≤ 0.6% and unavoidable impurities ≤ 0.3%, the balance is Copper is formed together; weighed separately and put into the melting furnace one after another, melted and cast into ingots;

[0019] Heating: use induction heating furnace to heat the ingot, heating temperature: 850~900℃, heating time: 3~6min;

[0020] Extrusion-Quenching: The extruder is used to water-seal the heated ingot and process it into a billet, that is, the die outlet of the extruder is connected to a water tank, so that the extruded billet directly enters the water tank for rapid cooling, which can prevent Oxidation of the surface of the billet, and refinement control of the grains of the alloy structure of the b...

Embodiment 2

[0026] Processing and manufacturing CuNi2Si alloy rods of φ24X3000mm in CY state, the process flow adopts:

[0027] Melting and casting: Nickel-silicon-copper alloy material components are weighed according to weight ratio. Ingredients: nickel 1.6-3.4%, silicon 0.15-1.1%, manganese ≤ 1.0%, iron ≤ 0.6% and unavoidable impurities ≤ 0.3%, the balance is Copper is weighed and put into the smelting furnace successively to be melted and cast into ingots;

[0028] Heating: use induction heating furnace to heat the ingot, heating temperature: 850~900℃, heating time: 3~6min;

[0029] Extrusion-Quenching: The extruder is used to water-seal the heated ingot and process it into a billet, that is, the die outlet of the extruder is connected to a water tank, so that the extruded billet directly enters the water tank for rapid cooling, which can prevent Oxidation of the surface of the billet, as well as refinement and control of the grain of the billet structure, the extrusion ratio: 26-45;...

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Abstract

The invention relates to a nickel-copper alloy rod or a profile for a high-speed electrified railway in the CY state, and the process thereof comprises casting, heating, extrusion-quenching, drawing, bright annealing, finishing and warehousing; the nickel-copper alloy rod or the profile is manufactured to be used for a positioning clamp, and the manufacturing method has the following steps that: extrusion and annealing steps in a traditional process are combined into one process, acid cleaning is omitted, so as to reduce the procedures of the process and the production cost; the mechanical property Rm of the rod or the profile processed and manufactured by the technical scheme is more than or equal to 380MPa, the Vickers hardness is HV80 to 150, A is more than or equal to 10 percent, HB is more than or equal to 180, and the need of the high-speed railway with the speed of 350km / h can be satisfied; and the material tissue of the nickel-copper alloy rod or the profile processed and manufactured by the technical scheme is in the CY state, and is more suitable for follow-up processing.

Description

technical field [0001] The invention relates to a non-ferrous metal processing technology, in particular to a nickel-silicon-copper alloy rod or profile used for the positioning clamp of a high-speed electrified railway catenary line in a CY state and its accessories. Background technique [0002] Nickel-silicon-copper alloy belongs to high-strength wear-resistant bronze due to its high strength, excellent corrosion resistance, wear resistance, formability, stress relaxation resistance and hot and cold processing performance, and is mainly used in ship components, electrified railway devices and other fields . In recent years, with the sustained and rapid growth of my country's economy, especially the rapid development of industries such as electromechanical manufacturing, ships, and electrified railways, the demand for nickel-silicon bronze materials has grown steadily year by year. In particular, nickel-silicon bronze materials used for integral suspension and positioning...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22F1/08
Inventor 娄花芬张文芹曹利卢燕韩卫光修志磊曹秀兰
Owner 中铝洛阳铜加工有限公司