High-performance beryllium-copper alloy and preparation method thereof

A beryllium-copper alloy, high-performance technology, applied in the field of high-performance beryllium-copper alloy and its preparation, can solve the problems that restrict the application of beryllium-copper castings and forgings, and achieve the effect of improving yield rate, improving mechanical comprehensive performance, and increasing unit weight

Inactive Publication Date: 2011-09-14
DONGGUAN JIASHENG COPPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the known beryllium copper material formula is mainly prepared from Be, Co, Ni and other metal elements, and then obtained by sand casting. Although beryllium bronze is the material with the best comprehensive performance among copper-based alloys, it is limited by the current backward production. Process and formula, the overall performance of beryllium copper alloy still needs to be improved, and the weight of a single casting can only be less than 200kg, which greatly restricts the application of beryllium copper casting and forging

Method used

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  • High-performance beryllium-copper alloy and preparation method thereof
  • High-performance beryllium-copper alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0018] The high-performance beryllium-copper alloy of the present invention comprises 2 beryllium, 0.45 total of cobalt and nickel, 0.08 of yttrium, 0.06 of titanium, 0.1 of boron, 0.1 of magnesium, and copper of the balance by weight percentage; wherein, beryllium is added in the form of a beryllium-copper master alloy, Beryllium accounts for the percentage weight of beryllium-copper alloy 4, cobalt and nickel are also added in the form of master alloys of cobalt-copper alloy and nickel-copper alloy respectively, cobalt and nickel account for the percentage weight of alloy 10 respectively, titanium is added in the form of titanium-copper master alloy, and titanium % by weight of Alloy 5, yttrium is added as a yttrium-copper master alloy, and yttrium is added by weight % of Alloy 10.

[0019] As the preparation method of above-mentioned high-performance beryllium-copper alloy, comprising the following steps:

[0020] (1) Smelting: First put the electrolytic copper Co-Cu master...

Embodiment 2

[0028] Embodiment two: the high-performance beryllium-copper alloy of the present invention comprises beryllium 1.6 by weight percentage, cobalt and nickel total 0.35, yttrium 0.03-0.1, titanium 0.03, boron 0.1, magnesium 0.1, the copper of balance; Wherein, beryllium is copper beryllium Add in the form of master alloy, beryllium accounts for 3.8% of beryllium-copper alloy, cobalt and nickel are also added in the form of master alloy of cobalt-copper alloy and nickel-copper alloy, cobalt and nickel account for 8% of the alloy respectively, and titanium takes titanium Copper master alloy is added, titanium accounts for 4% by weight of the alloy, and yttrium is added in the form of yttrium-copper master alloy, and yttrium accounts for 8% by weight of the alloy.

[0029] As the preparation method of above-mentioned high-performance beryllium-copper alloy, comprising the following steps:

[0030] (1) Smelting: add cobalt-copper master alloy, nickel-copper master alloy, and 60% ber...

Embodiment 3

[0036] Embodiment three: the high-performance beryllium-copper alloy of the present invention comprises beryllium 2.2 by weight percentage, cobalt and nickel total 0.65, yttrium 0.03-0.1, titanium 0.1, boron 0.3, magnesium 0.3, the copper of balance; Wherein, beryllium is copper beryllium Add in the form of master alloy, beryllium accounts for 4.2% of beryllium-copper alloy, cobalt and nickel are also added in the form of master alloy of cobalt-copper alloy and nickel-copper alloy, cobalt and nickel account for 12% of the alloy respectively, and titanium takes titanium Copper master alloy is added, titanium accounts for 6% by weight of the alloy, and yttrium is added in the form of yttrium-copper master alloy, and yttrium accounts for 12% by weight of the alloy.

[0037] The preparation method of the above-mentioned high-performance beryllium-copper alloy is characterized in that, comprising the following steps:

[0038] (1) Melting: add cobalt-copper master alloy, nickel-copp...

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Abstract

The invention discloses a high-performance beryllium-copper alloy and a preparation method thereof. The high-performance beryllium copper comprises 1.6-2.2% of beryllium, 0.35-0.65% of cobalt and nickel, 0.03-0.1% of yttrium, 0.03-0.1% of titanium, 0.1-0.3% of boron, 0.1-0.3% of magnesium and the balance of copper in percentage by weight, wherein the beryllium is added in the form of a beryllium-copper immediate alloy and accounts for 3.8-4.2% of the beryllium-copper alloy; the cobalt and the nickel are also respectively added in the form of immediate alloys of a cobalt-copper alloy and a nickel-copper alloy and respectively account for 8-12% of the alloy; the titanium is added in the form of a titanium-copper immediate alloy and accounts for 4-6% of the alloy; and the yttrium is added in the form of a yttrium-copper immediate alloy and accounts for 8-12% of the alloy. By using the invention, the mechanical comprehensive performance is improved, the service life of the material is largely prolonged, and the service life of a beryllium-copper injection plunger head applied to a die casting machine is increased to more than 20000 mold times from the original 8000-12000 mold times.

Description

[0001] 【Technical field】 [0002] The invention relates to alloy materials, in particular to a high-performance beryllium copper alloy and a preparation method thereof. 【Background technique】 [0003] Beryllium copper castings and forgings are widely used in mold manufacturing, electronic appliances, communication equipment, aerospace, petrochemical, gold mining, automotive appliances, machinery manufacturing and other fields. At present, the known beryllium copper material formula is mainly prepared from Be, Co, Ni and other metal elements, and then obtained by sand casting. Although beryllium bronze is the material with the best comprehensive performance among copper-based alloys, it is limited by the current backward production. The process and formula, the overall performance of beryllium copper alloy still need to be improved, and the weight of a single casting can only be less than 200kg, which greatly restricts the application of beryllium copper casting and forging. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03C22F1/08
Inventor 张兆兵
Owner DONGGUAN JIASHENG COPPER
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