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Beryllium copper alloy

A beryllium-copper alloy and copper alloy technology, applied in the field of alloys, can solve problems affecting product performance, high friction coefficient, poor thermal conductivity, etc., and achieve the effects of prolonging service life, small friction coefficient and fast heat conduction

Inactive Publication Date: 2005-05-18
宋协福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary die steel is mostly used in the manufacture of thick sheet metal stretch forming dies such as auto parts. The thermal conductivity of ordinary die steel is only 42W / m.K. Heat treatment is required in the production process, which increases the process and complicates the processing. At the same time, its friction coefficient is large. , the coefficient of friction is 0.15-0.3, which directly affects the performance of the product due to its own performance difference

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, according to the chemical composition requirement of the present invention, weigh beryllium-copper alloy 101 Kg, Cr 2.55Kg, Mn 22.7Kg, Fe 22.7Kg, Al 145Kg, Cu 740Kg containing beryllium 4%, copper 96%, electric furnace preheating When the temperature reaches about 300°C, add 444Kg of 60% copper material, cover the surface with charcoal powder, add the above-mentioned iron, manganese, and chromium after melting, and when the temperature rises to about 1200°C, add the above-mentioned aluminum and stir quickly. After all the metals are melted, add the remaining 40% copper 296Kg and the above-mentioned beryllium-copper alloy weighed, remove the scum after melting, and when the temperature rises to about 1150°C-1200°C, cast it to obtain the beryllium-copper alloy of the present invention . Sampling was carried out for chemical analysis, and the weight percentage of its chemical composition is: Be 0.4% Cr 0.25% Mn 2.2% Fe 2.2% Al 14.0%, the balance is Cu and una...

Embodiment 2

[0019] Embodiment 2, weigh beryllium-containing 4%, copper-containing 96% beryllium-copper alloy 76Kg, Cr 1.55Kg, Mn 20.6Kg, Fe 20.6Kg, Al 134Kg, Cu 780Kg according to the chemical composition requirement of the present invention, electric furnace is preheated to Add 468Kg of 60% copper material at about 300°C, cover the surface with charcoal powder, add the iron, manganese, and chromium weighed above after melting, and add the aluminum weighed above and stir quickly when the temperature rises to about 1200°C. After the metal is completely melted, add the remaining 40% copper 312Kg and the above-mentioned beryllium-copper alloy weighed, remove the dross after melting, and when the temperature rises to about 1150°C-1200°C, cast it to obtain the beryllium-copper alloy of the present invention. Sampling was carried out for chemical analysis, and the weight percentage of its chemical composition is: Be 0.3% Cr 0.15% Mn 2.0% Fe 2.0% Al 13%, the balance is Cu and unavoidable trace im...

Embodiment 3

[0020] Embodiment 3, weigh 126Kg, Cr 3.55Kg, Mn 29Kg, Fe 29Kg, Al 146Kg, Cu 699Kg containing beryllium 4% and copper-containing 96% beryllium-copper alloy according to the chemical composition requirements of the present invention, and the electric furnace is preheated to 300°C Add 419Kg of 60% copper material, cover the surface with charcoal powder, add the iron, manganese, and chromium weighed above after melting, and add the aluminum weighed above and stir quickly when the temperature rises to about 1200°C. After melting, add the remaining 40% copper 280Kg and the above-mentioned beryllium-copper alloy weighed, remove the scum after melting, and when the temperature rises to about 1150°C-1200°C, cast it to obtain the beryllium-copper alloy of the present invention. Sampling for chemical analysis, the weight percentage of its chemical composition is: Be 0.5% Cr 0.35% Mn 2.8% Fe 2.8% Al 14.2%, the rest is Cu and unavoidable trace impurities. After testing, its hardness is: HR...

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Abstract

The Be-Cu alloy contains Be 0.2-0.6 wt%, Cr 0-0.5 wt%, Mn 1.8-3.0 wt%, Fe 1.8-3.0 wt% and Al 12.5-14.5 wt%, except Cu and inevitable small amount of impurity. It has hardness of HRC 42-52 deg, high heat conductivity, small friction coefficient, high wear resistance, high anticorrosion, smoothness and long service life.

Description

(1) Technical field: [0001] The invention relates to the technical field of alloys, in particular to a beryllium-copper alloy, which is mainly used for stretching and forming dies for thick sheet materials such as automobile parts. (two) background technology: [0002] At present, ordinary die steel is mostly used in the manufacture of thick sheet metal stretch forming dies such as auto parts. The thermal conductivity of ordinary die steel is only 42W / m.K. Heat treatment is required in the production process, which increases the process and complicates the processing. At the same time, its friction coefficient is large. , The coefficient of friction is 0.15-0.3, which directly affects the performance of the product due to its own performance difference. (3) Contents of the invention: [0003] The purpose of the present invention is to overcome above-mentioned deficiencies in the prior art, and provide a kind of beryllium-copper alloy with fast thermal conductivity, small f...

Claims

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Application Information

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IPC IPC(8): C22C9/01
Inventor 宋协福
Owner 宋协福
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