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A rolled alloy bar used in the field of aerospace and its manufacturing method

An aerospace and manufacturing method technology, applied in the field of alloy rods and its manufacturing, can solve the problems that the performance cannot reach beryllium bronze, reduce beryllium, accept and other problems, and achieve the effects of material saving, performance improvement and cost reduction

Active Publication Date: 2016-05-11
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, several existing materials such as aluminum bronze have a yield strength of 431MPa, and copper-nickel-tin alloy has a yield strength of 724MPa. Their performance cannot reach the level of beryllium bronze, and they have not been fully accepted by people.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A rolled alloy rod used in the aerospace field, consisting of the following components in weight percentage: nickel: 11%, tin: 1%, aluminum: 5%, manganese: 0.05%, titanium: 0.05%, silver: 0.05% , Copper: 82.85%.

[0024] Its manufacturing method comprises the following steps:

[0025] 1. Manufacture copper-nickel alloy: place electrolytic copper and nickel in a power frequency electric furnace according to the weight ratio, heat to 900-950 degrees, smelt for 1-1.5 hours, and keep warm to 850 degrees after complete melting, and the holding time is 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 and raise the temper...

Embodiment 2

[0036] A rolled alloy bar used in the aerospace field, consisting of the following components in weight percentage: nickel: 18%, tin: 3%, aluminum: 8%, manganese: 0.3%, titanium: 0.1%, silver: 0.1% , Copper: 70.5%.

[0037] Its manufacturing method comprises the following steps:

[0038] 1. Manufacture copper-nickel alloy: place electrolytic copper and nickel in a power frequency electric furnace according to the weight ratio, heat to 900-950 degrees, smelt for 1-1.5 hours, and keep warm to 850 degrees after complete melting, and 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 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.

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

Embodiment 3

[0049] A rolled alloy rod used to replace beryllium bronze in the field of aerospace, consisting of the following components in weight percentage: nickel: 14.5%, tin: 2%, aluminum: 6.5%, manganese: 0.175%, titanium: 0.075%, silver : 0.075%, copper: 76.675%.

[0050] Its manufacturing method comprises the following steps:

[0051] 1. Manufacture copper-nickel alloy: place electrolytic copper and nickel in a power frequency electric furnace according to the weight ratio, heat to 900-950 degrees, smelt for 1-1.5 hours, and keep warm to 850 degrees after complete melting, and 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 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;

[0053] 3. Add the heat-preserved aluminum-tin alloy melt to the copper-nickel alloy melt, stir it w...

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Abstract

The present invention provides a rolled alloy rod used in the aerospace field, and a manufacturing method thereof. The alloy rod comprises, by weight, 11-18% of nickel, 1-3% of tin, 5-8% of aluminum, 0.05-0.3% of manganese, 0.05-0.1% of titanium, 0.05-0.1% of silver, and the balance of copper. According to the present invention, complete fusion of the copper-nickel alloy and the aluminum-tin alloy is utilized, the formed multi-element alloy can achieve the required strength so as to replace the beryllium-copper alloy, and performances of the alloy material are improved.

Description

technical field [0001] The invention relates to the field of manufacturing alloy rods, in particular to a rolled alloy rod 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, several existing materials such as aluminum bronze have a yield strength of 431MPa, and copper-nickel-tin alloy has a yield strength of 724MPa. Their performance cannot reach the level of beryllium bronze, and they have not been fully accepted by people. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22C1/03C22F1/08B23P15/00
Inventor 陆海荣孙飞赵勇
Owner SUZHOU JINCANG ALLOY NEW MATERIAL
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