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High-performance elastic alloy material for aerial hyperbaric cabin and production method thereof

A technology of elastic alloys and production methods, which is applied in the field of new high-performance elastic materials, can solve the problems of restricting the development and application of alloys, and achieve the effects of narrowing the tolerance range, improving mechanical properties, and refining grains

Inactive Publication Date: 2013-01-02
丹阳市龙鑫合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the winding test smaller than the specified size, and the brittle cracking problem of forward and reverse bending 90° on the same phase surface also limit the further development and application of the alloy

Method used

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  • High-performance elastic alloy material for aerial hyperbaric cabin and production method thereof
  • High-performance elastic alloy material for aerial hyperbaric cabin and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] High-performance elastic alloy material for aviation hyperbaric cabin, its chemical composition is (wt.%): Ni 15%, Cr 19%, Co 40%, Si 0.6%, Mn 2%, C 0.08%, P 0.01%, S 0.01%, Mo 7%, Ti 0.5%, Al 0.3%, lanthanum-cerium alloy 0.5%, Fe 15%.

Embodiment 2

[0032] High-performance elastic alloy material for aviation hyperbaric cabin, its chemical composition is (wt.%): Ni 14%, Cr 20%, Co 39%, Si 0.3%, Mn 2.2%, C 0.1%, P 0.01%, S 0.01%, Mo 6.5%, Ti 1%, Al 0.2%, Lanthanum-cerium alloy 0.5%, Fe 16.18%.

Embodiment 3

[0034] High-performance elastic alloy material for aviation hyperbaric cabin, its chemical composition is (wt.%): Ni 17%, Cr 21%, Co 40%, Si 0.3%, Mn 1.7%, C 0.07%, P 0.01%, S 0.01%, Mo 6.5%, Ti 0.35%, Al 0.4%, lanthanum-cerium alloy 0.5%, Fe 12.16%.

[0035] The production method of above embodiment 1-3 comprises the following steps:

[0036] 1. Vacuum melting:

[0037] (1) Raw material preparation: the charge is Ni plate, metal Cr, industrial pure Fe and metal Mn, Co and other materials, which are baked and used for later use;

[0038] (2) Charging: Load Ni, Cr, Fe, Co furnace materials that have been baked into the intermediate frequency smelting furnace, and put C, Mn, Si, and lanthanum-cerium alloys into the material cup.

[0039] (3), refining:

[0040] For low-power chemical materials, after the material is 70% melted, increase the power to melt at a high speed. When it is fully melted, it will enter the refining period after reaching the refining temperature. Refin...

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Abstract

The invention provides a high-performance elastic alloy material for an aerial hyperbaric cabin. The production method of the high-performance elastic alloy material comprises the following steps: (1) vacuum melting; (2) electroslag refining; (3) forging an ingot billet; (4) hot-rolling molding; (5) cold drawing; and (6) performing heat treatment. The high-performance elastic alloy material obtained by the method has high tensile strength up to 160 / 250(MPa); a wrapping test proves that the alloy material is not ruptured after being wound around not less than 15 circles, which is obviously superior to the national standard; and in the eventthat the alloy material is bent for 90 degrees forwardly and reversely on the same phase plane, the outer side of the bent position is not cracked and ruptured.

Description

technical field [0001] The invention relates to a novel high-performance elastic material suitable for a high-temperature chamber and a production method thereof, in particular to the improvement of the elastic material cobalt-based 3J21 alloy. Background technique [0002] With the continuous update and development of aerospace vehicles, the requirements for material performance are getting higher and higher. The working conditions of aerospace vehicles are very complicated, and most components are in service under high composite stress, high temperature and environmental erosion. The main requirements are high temperature resistance, low temperature resistance, high specific strength, high specific stiffness, fatigue resistance, corrosion resistance, long life and low cost. In the current elastic alloy market, the elastic material used in high-end products is cobalt-based 3J21 alloy. This material has good corrosion resistance and high tensile strength, which can fully mee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C38/58C22C1/02C22C33/04C22F1/00C21D8/00
Inventor 王国年赵堪姜建东束志华
Owner 丹阳市龙鑫合金有限公司
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