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A boron-copper alloy

A copper alloy and alloy technology, applied in the field of boron-copper alloy, can solve problems such as lead heavy metal poisoning and easy pollution of the environment, and achieve the effects of reducing environmental damage, high corrosion resistance, and reducing production costs

Inactive Publication Date: 2016-08-03
NINGBO SWAN SANITARY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some copper alloys contain lead, which can easily cause heavy metal poisoning and pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A boron-copper alloy contains 38% of zinc, 1.5% of tin, 1.0% of aluminum, 0.035% of bismuth, 0.01% of boron and the balance of copper in the alloy by weight percentage. In the following embodiments of the present invention, other aspects are the same except that the percentages of each element are different. The manufacturing process of the alloy is that zinc, aluminum and copper weighed in proportion are put into a melting furnace, melted in the range of 1050-1250 degrees centigrade, then tin, bismuth and boron are added, and the temperature is kept at 850-950 degrees centigrade. Follow up process.

[0013] In the present invention, the best material formulation is Example 1.

[0014] The copper-based alloy produced according to this ratio has the same physical properties as the existing nickel-copper or zinc-copper alloy after cooling, and its corrosion resistance is higher than that of the existing nickel-copper or zinc-copper.

[0015] In the following examples of...

Embodiment 2

[0017] A boron-copper alloy contains 37% zinc, 1.0% tin, 0.8% aluminum, 0.05% bismuth, 0.005% boron and the balance copper in the alloy by weight percentage. The manufacturing process of the alloy is that zinc, aluminum and copper weighed in proportion are put into a melting furnace, melted in the range of 1050-1250 degrees centigrade, then tin, bismuth and boron are added, and the temperature is kept at 850-950 degrees centigrade. Follow up process. In this embodiment, the copper-based alloy produced is similar to the existing nickel-copper or zinc-copper alloy in physical properties, and its corrosion resistance is higher than that of the existing nickel-copper or zinc-copper alloy.

Embodiment 3

[0019] A boron-copper alloy, the alloy includes 39% of zinc, 0.5% of tin, 0.5% of aluminum, 0.03% of bismuth, 0.008% of boron and the balance of copper in the alloy. The manufacturing process of the alloy is that zinc, aluminum and copper weighed in proportion are put into a melting furnace, melted in the range of 1050-1250 degrees centigrade, then tin, bismuth and boron are added, and the temperature is kept at 850-950 degrees centigrade. Follow up process. In this embodiment, the copper-based alloy produced is similar to the existing nickel-copper or zinc-copper alloy in physical properties, and its corrosion resistance is higher than that of the existing nickel-copper or zinc-copper alloy.

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PUM

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Abstract

The invention relates to boron copper alloy which comprises the following components by weight: 37-39% of zinc, 0.5-1.5% of tin, 0.5-1.0% of aluminium, 0.03-0.05% of bismuth, 0.005-0.01% of boron, and the balance of copper. The boron copper alloy has similar physical properties to current nickel copper or zinc copper alloy, and has higher corrosion resistance than current nickel copper or zinc copper alloy.

Description

technical field [0001] The invention belongs to the field of alloy materials, in particular to a boron-copper alloy. Background technique [0002] Among the existing copper products, zinc-nickel-nickel copper is widely used because of its excellent physical and chemical properties such as beautiful appearance and high surface temperature. However, in current use, although the chemical activity of this type of copper alloy is lower than that of metals such as iron, it will also corrode when it is used in water pipes or faucets and copper valves. Therefore, there is a technology to improve the corrosion resistance by adding nickel to the copper alloy. Therefore, nickel-nickel-nickel copper has been developed. This copper alloy has greatly improved corrosion resistance, but it also has an insurmountable shortcoming, that is, the amount of nickel used in the copper-based alloy is relatively high, which is more than 5% of the total amount of the alloy. . Because the price of n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04
Inventor 汪耀信
Owner NINGBO SWAN SANITARY
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