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Continuous casting alloy pipe in aerospace field and manufacturing method thereof

A technology for aerospace and manufacturing methods, applied in slender components, building components, etc., can solve the problems that the performance cannot reach the yield strength of beryllium bronze, toxicity, reduce beryllium, etc., save materials, improve performance, and improve production efficiency. Effect

Active Publication Date: 2014-01-29
SUZHOU JINCANG ALLOY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the U.S. Occupational Safety and Health Administration called for reducing the use of beryllium, because beryllium has certain toxicity, once the human body inhales the corresponding dose of beryllium dust, it will cause fatal lung disease
In industrial production, the performance of several existing materials such as aluminum bronze with a yield strength of 431MPa and copper-nickel-tin alloy with a yield strength of 724MPa cannot reach the yield strength of beryllium bronze, and has not been fully accepted by people.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A continuously cast alloy tube for the aerospace field, consisting of the following components in weight percentage: nickel: 20%, tin: 8%, aluminum: 9%, manganese: 1%, iron: 1.5%, phosphorus: 0.05% , chromium: 0.01%, cobalt: 0.01%, copper: 60.43%.

[0024] Its manufacturing method comprises the following steps:

[0025] 1. Manufacture of copper-nickel alloy: put electrolytic copper, nickel, and tin in a power frequency electric furnace according to the weight ratio, heat to 950-1000 degrees, smelt for 1-1.5 hours, and keep warm to 900 degrees after complete melting. 0.5-1 hour;

[0026] 2. Manufacture of aluminum-tin alloy: put aluminum and tin in a power frequency electric furnace according to the weight ratio, heat to 660-700 degrees, smelt for 1-1.5 hours, and keep warm to 550 degrees after complete melting, and the holding time is 0.5- 1 hour;

[0027] 3. Add the heat-preserved aluminum-tin alloy melt to the copper-nickel alloy melt, stir it with a graphite rod a...

Embodiment 2

[0036] A continuously cast alloy tube used in the aerospace field, consisting of the following components in weight percentage: nickel: 25%, tin: 12%, aluminum: 11%, manganese: 3%, iron: 3%, phosphorus: 0.3% , chromium: 0.1%, cobalt: 0.1%, copper: 45.5%.

[0037] Its manufacturing method comprises the following steps:

[0038] 1. Manufacture copper-nickel alloy: put electrolytic copper, nickel, and tin in a power frequency electric furnace according to the ratio, heat to 950-1000 degrees, smelt for 1-1.5 hours, and keep warm to 900 degrees after complete melting. The holding time is 0.5-1 hour;

[0039] 2. Manufacture of aluminum-tin alloy: put aluminum and tin in a power frequency electric furnace according to the ratio, heat to 660-700 degrees, smelt for 1-1.5 hours, and keep warm to 550 degrees after complete melting, and the holding time is 0.5-1 Hour;

[0040] 3. Add the heat-preserved aluminum-tin alloy melt to the copper-nickel alloy melt, stir it with a graphite rod...

Embodiment 3

[0049] A continuously cast alloy tube for aerospace, nickel: 22.5%, tin: 10%, aluminum: 10%, manganese: 2%, iron: 2.25%, phosphorus: 0.175%, chromium: 0.055%, cobalt: 0.055%, Copper: 52.965%.

[0050] Its manufacturing method comprises the following steps:

[0051] 1. Manufacture copper-nickel alloy: put electrolytic copper, nickel, and tin in a power frequency electric furnace according to the ratio, heat to 950-1000 degrees, smelt for 1-1.5 hours, and keep warm to 900 degrees after complete melting. The holding time is 0.5-1 hour;

[0052] 2. Manufacture of aluminum-tin alloy: put aluminum and tin in a power frequency electric furnace according to the ratio, heat to 660-700 degrees, smelt for 1-1.5 hours, and keep warm to 550 degrees after complete melting, and the holding time is 0.5-1 Hour;

[0053] 3. Add the heat-preserved aluminum-tin alloy melt to the copper-nickel alloy melt, stir it with a graphite rod and raise the temperature to 1000 degrees;

[0054] 4. Mangan...

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Abstract

The invention provides a continuous casting alloy pipe in the aerospace field and a manufacturing method thereof. The alloy pipe comprises components in percentage by weight: 20-25% of nickel, 8-12% of tin, 9-11% of aluminum, 1-3% of manganese, 1.5-3% of iron, 0.05-0.3% of phosphorus, 0.01-0.1% of chromium, 0.01-0.1% of cobalt and the balance of copper. According to the continuous casting alloy pipe in aerospace field, the multi-element alloy formed by completing fusing copper-nickel alloy and aluminum-tin alloy can achieve the needed strength so as to replace the toxic beryllium in beryllium-copper alloy, and the performance of the alloy material can be improved.

Description

technical field [0001] The invention relates to the field of alloy tube manufacturing, in particular to a continuously cast alloy tube used in the aerospace field and a manufacturing method thereof. Background technique [0002] At present, beryllium bronze made of copper-beryllium alloy has superior properties, such as its yield strength can be higher than 965MPa, so it is widely used in high-end product parts such as bushings in the aerospace field. However, the U.S. Occupational Safety and Health Administration called for reducing the use of beryllium, because beryllium has certain toxicity, and once the human body inhales a corresponding dose of beryllium dust, it will cause fatal lung diseases. In industrial production, the performance of several existing materials such as aluminum bronze with a yield strength of 431MPa and copper-nickel-tin alloy with a yield strength of 724MPa cannot reach the yield strength of beryllium bronze, and has not been fully accepted by peop...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C30/00C22C1/02F16S3/00
Inventor 陆海荣孙飞赵勇
Owner SUZHOU JINCANG ALLOY NEW MATERIAL
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