Copper alloy for drawing mould and preparation method thereof

A technology for drawing dies and copper alloys, which is applied in the field of copper alloys for drawing dies and its preparation, can solve the problems of low strength of copper alloy die materials, and achieve the effects of easy machining, low wear rate and extended service life

Inactive Publication Date: 2013-11-20
SANLIAN PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper alloy materials are widely used in the development of various molds. Due to their high strength, fine structure, straight plates, uniform surface, precise dimensions, no deformation during machining, corrosion resistance, light specific gravity, and easy processing and welding, they are excellent in electrical and thermal conductivity. It is popular with processing enterprises for steel materials, but due to the characteristics of copper materials, copper alloy mold materials have the problem of low strength

Method used

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Embodiment Construction

[0009] Copper alloy for drawing dies, which contains the following chemical composition in weight percent: Aluminum 10-12, Magnesium 2.2-2.4, Zinc 4-5, Boron 1.2-1.4, Titanium 0.2-0.4, Manganese 1.1-1.3, Be2.1- 2.3, La0.07-0.09, Ho0.06-0.09, Ni1.1-1.3, the balance is copper.

[0010] The preparation method of the copper alloy for drawing dies is characterized in that: adding electrolytic copper in the intermediate frequency furnace, heating to 1090-1130°C, adding other alloy components and testing after the copper material is melted, and raising the temperature to 1210-1230°C, Stir for 10-15 minutes, remove slag; then add refining agent, stir for 10-20 minutes, then remove slag; add refining agent, stir for 10-15 minutes, remove slag; cool down to 1100-1130°C, cast, cast Then cool down to room temperature at a rate of 160-180°C / hour; then, heat up the billet at a rate of 90-110°C / hour to 880-950°C and keep it warm for 3-4 hours; then cool down to 640°C at a rate of 140-150°C / h...

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PUM

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Abstract

Copper alloy for drawing mould is characterized by comprising following chemical components by weight: 10-12 parts of aluminum, 2.2-2.4 parts of magnesium, 4-5 parts of zinc, 1.2-1.4 parts of boron, 0.2-0.4 part of titanium, 1-1.3 parts of manganese, 2.1-2.3 parts of Be, 0.07-0.09 part of La, 0.06-0.09 part of Ho, 1.1-1.3 parts of Ni and the balance of copper. The copper alloy provided by the invention has advantages of good anti-sticking effect, no formation of a bonding tumor, no scratch of a drawing product, reduction on the mold repair time, small friction coefficient, low wear rate, great extension on the service cycle, no requirement on polishing or heat treatment, and easiness for mechanical processing.

Description

technical field [0001] The invention belongs to alloy smelting technology, in particular to a copper alloy for drawing dies and a preparation method thereof. Background technique [0002] Copper alloy materials are widely used in the development of various molds. Due to their high strength, fine structure, straight plates, uniform surface, precise dimensions, no deformation during machining, corrosion resistance, light specific gravity, and easy processing and welding, they are excellent in electrical and thermal conductivity. Especially for steel materials, it is welcomed by processing enterprises, but due to the characteristics of copper materials, copper alloy mold materials have the problem of low strength. Contents of the invention [0003] The object of the present invention is to provide a copper alloy for drawing dies and a preparation method thereof, which have higher strength and thermal conductivity. [0004] Technical scheme of the present invention is as foll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/01C22C1/06C22F1/08
Inventor 何祥炎黄先功张潮海
Owner SANLIAN PUMP IND CO LTD
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