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A new type of copper-based alloy pipe for high-speed railway and preparation method thereof

A technology of copper-based alloy and high-speed railway, which is applied in the field of alloy pipes, can solve the problems of high toxicity and achieve the effect of improving cutting performance

Active Publication Date: 2017-01-18
SUZHOU JINCANG ALLOY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, because lead is a heavy metal with high toxicity, with the increasing awareness of environmental protection, bronze alloys containing lead elements can no longer meet the requirements of high-end markets at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A new type of copper-based alloy tube for high-speed railway, which is composed of the following components: aluminum accounting for 0.1% of the total weight of the alloy tube, phosphorus accounting for 0.05% of the total weight of the alloy tube, antimony accounting for 0.5% of the total weight of the alloy tube, accounting for 0.5% of the total weight of the alloy tube The total weight is 0.2% magnesium, 1% silicon, 10% tin, 4% zinc and copper as the balance.

[0028] Place electrolytic copper, tin, zinc, aluminum, phosphorus, antimony, and silicon in a power frequency electric furnace according to the ratio for vacuum smelting. After heating to 1150-1200 degrees Celsius and completely melting, keep the temperature at 1100 degrees Celsius in a vacuum state. The holding time is 30-40 minutes; Add metal magnesium to the copper, tin, zinc, aluminum, phosphorus, antimony, silicon alloy solution after heat preservation in proportion, and immediately stir the completely melt...

Embodiment 2

[0031] A new type of copper-based alloy tube for high-speed railway, which is composed of the following components: aluminum accounting for 0.8% of the total weight of the alloy tube, phosphorus accounting for 0.5% of the total weight of the alloy tube, antimony accounting for 1.5% of the total weight of the alloy tube, and accounting for 0.5% of the total weight of the alloy tube 0.5% of magnesium by weight, 3% of silicon by weight of the alloy pipe, 13% of tin by weight of the alloy pipe, 6% of zinc by weight of the alloy pipe, and copper as the balance.

[0032] Place electrolytic copper, tin, zinc, aluminum, phosphorus, antimony, and silicon in a power frequency electric furnace according to the ratio for vacuum smelting. After heating to 1150-1200 degrees Celsius and completely melting, keep the temperature at 1100 degrees Celsius in a vacuum state. The holding time is 30-40 minutes; Add metal magnesium to the copper, tin, zinc, aluminum, phosphorus, antimony, silicon allo...

Embodiment 3

[0035] A new type of copper-based alloy tube for high-speed railways, which is composed of the following components: aluminum accounting for 0.4% of the total weight of the alloy tube, phosphorus accounting for 0.25% of the total weight of the alloy tube, antimony accounting for 1% of the total weight of the alloy tube, and accounting for 0.2% of the total weight of the alloy tube The total weight is 0.3% magnesium, 2% silicon, 12% tin, 5% zinc, and copper.

[0036] Place electrolytic copper, tin, zinc, aluminum, phosphorus, antimony, and silicon in a power frequency electric furnace according to the ratio for vacuum smelting. After heating to 1150-1200 degrees Celsius and completely melting, keep the temperature at 1100 degrees Celsius in a vacuum state. The holding time is 30-40 minutes; Add metal magnesium to the copper, tin, zinc, aluminum, phosphorus, antimony, silicon alloy solution after heat preservation in proportion, and immediately stir the completely melted alloy li...

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Abstract

The invention provides a novel copper-based alloy pipe for a high speed railway and a preparation method of the alloy pipe. The novel copper-based alloy pipe for the high speed railway comprises the following components based on the total weight of the alloy pipe: 0.1-0.8 percent of aluminum, 0.05-0.5 percent of phosphorus, 0.5-1.5 percent of antimony, 0.2-0.5 percent of magnesium, 1-3 percent of silicon, 10-13 percent of tin, 4-6 percent of zinc and the balance of copper. Due to the addition of magnesium element, addition of lead is avoided on the basis that the machinability and wear resistance and antifriction property of the original lead-containing tin bronze are maintained or are not obviously reduced. According to the added magnesium element, single phases in diffuse distribution are formed in the copper alloy and achieve the chip breaking effects during cutting, so that the machinability of the copper alloy is improved.

Description

technical field [0001] The invention relates to the field of alloy pipes, in particular to a novel copper-based alloy pipe for high-speed railways and a preparation method thereof. Background technique [0002] The reason why lead-containing copper alloy has good cutting performance and anti-friction and wear resistance is mainly because lead exists as a single item in copper alloy, which plays a good role in breaking chips during cutting; in the friction and wear environment, due to the lead The shear strength is very low, and the lead on the surface of copper alloy parts makes leaded copper alloys have a relatively low coefficient of friction. Therefore, lead element is more commonly used in brass alloys. [0003] However, because lead is a heavy metal with high toxicity, with the increasing awareness of environmental protection, bronze alloys containing lead elements can no longer meet the requirements of high-end markets at home and abroad. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/02
CPCC22C9/02
Inventor 孙飞赵勇王青
Owner SUZHOU JINCANG ALLOY NEW MATERIAL
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