High-strength beryllium-copper alloy bar and preparation process thereof

A beryllium-copper alloy and preparation process technology, which can be used in manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of insufficient strength of beryllium-copper alloy materials, inability to meet the needs of use, and reduced electrical conductivity, so as to inhibit the recrystallization process and reduce the fineness of the beryllium copper alloy. The effect of reducing recrystallized grains and suppressing phase transformation

Active Publication Date: 2021-07-27
江阴金湾合金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the copper alloy itself, any method to increase its strength will lead to a decrease in electrical conductivity, so the high strength and high electrical conductivity of copper alloys are a pair of contradictions and cannot be both
[0004] Low beryllium copper alloy has a high advantage in electrical conductivity. With the gradual increase of beryllium content in beryllium copper alloy, the strength of beryllium copper alloy is higher, but beryllium is expensive and is a highly toxic substance, so beryllium copper alloy When the content of beryllium in the material is low, the strength of the beryllium copper alloy material is not enough to meet the needs of people.

Method used

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  • High-strength beryllium-copper alloy bar and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The invention provides a high-strength beryllium-copper alloy rod, including the following elements by weight percentage: Be: 1%, Si: 0.1%, Ni: 0.5%, Co: 0.1%, Zr: 0.05%, Ti: 0.005 %, V: 0.05%, rare earth elements: 0.05%, and the balance is Cu and unavoidable impurities.

[0027] In a preferred embodiment, the unavoidable impurity content is lower than 0.005%, the rare earth element is a mixture of lanthanum, samarium and cerium, and the mass ratio of lanthanum, samarium and cerium is 4:1.5:0.8 .

[0028] The present invention also provides a preparation process for a high-strength beryllium-copper alloy rod, the specific preparation steps are as follows:

[0029] Step 1: Melting, weigh the raw materials according to the above weight percentage, put the weighed raw materials into the vacuum melting furnace in turn, and melt in the vacuum melting furnace at 1250°C for 50 minutes, after the melting is completed, under the action of inert gas Import the smelting liquid i...

Embodiment 2

[0040] The difference from Example 1 is that the high-strength beryllium-copper alloy rod includes the following elements by weight percentage: Be: 1.3%, Si: 0.3%, Ni: 0.75%, Co: 0.3%, Zr: 0.1%, Ti: 0.025%, V: 0.1%, rare earth elements: 0.1%, and the balance is Cu and unavoidable impurities.

Embodiment 3

[0042] All different from Examples 1-2, the high-strength beryllium-copper alloy rod includes the following elements by weight percentage: Be: 1.6%, Si: 0.5%, Ni: 1%, Co: 0.5%, Zr: 0.15%, Ti: 0.045%, V: 0.15%, rare earth elements: 0.15%, and the balance is Cu and unavoidable impurities.

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Abstract

The invention discloses a high-strength beryllium-copper alloy bar, and particularly relates to the technical field of beryllium-copper alloys. The high-strength beryllium-copper alloy bar comprises the following elements: Be, Si, Ni, Co, Zr, Ti, V, rare earth elements, and the balance of Cu and inevitable impurities. According to the produced high-strength beryllium-copper alloy bar, nickel, cobalt, zirconium, titanium, vanadium and rare earth elements are added, the addition of nickel and cobalt can refine crystal grains in an alloy material and improve the uniformity of an internal structure, so that the beryllium-copper alloy material has good mechanical properties, zirconium can improve the softening temperature of the beryllium-copper alloy and refine recrystallized crystal grains, and titanium can effectively enhance the strength of the beryllium-copper alloy, the vanadium can purify, deteriorate and refine crystal grains and can improve the wear resistance of the beryllium-copper alloy bar, and the rare earth elements can refine the crystal grains to make the crystal grains uniform and can effectively improve the strength and corrosion resistance of the beryllium-copper alloy bar. The practicability of the beryllium-copper alloy bar can be improved, and the beryllium-copper alloy bar can meet the use requirements of people.

Description

technical field [0001] The present invention relates to the technical field of copper alloys, more specifically, the present invention relates to a high-strength beryllium-copper alloy rod and a preparation process thereof. Background technique [0002] Beryllium copper alloy is a copper alloy with beryllium as the main alloying element, also known as beryllium copper. It is the best advanced elastic material among copper alloys, with high strength, elasticity, hardness, fatigue strength, small elastic hysteresis, corrosion resistance, wear resistance, cold resistance, high conductivity, non-magnetic, no sparks when impacted, etc. Series of excellent physical, chemical and mechanical properties. After quenching and tempering, beryllium copper alloy has high strength, elasticity, wear resistance, fatigue resistance and heat resistance. At the same time, beryllium copper alloy also has high electrical conductivity, thermal conductivity, cold resistance and non-magnetic proper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03C21D9/00C22F1/08B21C37/04
CPCC22C9/00C22C1/03C21D9/0075C22F1/002C22F1/08B21C37/04
Inventor 赵星夏金文陈勋
Owner 江阴金湾合金材料有限公司
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