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Formulation and production method of extruded and drawn brass tube resistant to dezincification

A production method and technology of brass tubes, which are applied in the field of plumbing and sanitary parts, can solve the problems of poor anti-dezincification and corrosion resistance, and achieve good anti-dezincification and corrosion resistance, good surface quality, and avoid burning.

Active Publication Date: 2016-03-09
龙岩市鸿航金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing brass tubes are just ordinary brass tubes produced by synthesis of copper and zinc, which have poor dezincification and corrosion resistance

Method used

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  • Formulation and production method of extruded and drawn brass tube resistant to dezincification
  • Formulation and production method of extruded and drawn brass tube resistant to dezincification
  • Formulation and production method of extruded and drawn brass tube resistant to dezincification

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Effect test

Embodiment 1

[0030] Embodiment 1 of the present invention discloses a formula for anti-dezincification extrusion-drawn brass tube, which comprises the following raw material composition in weight percentage: 46% of electrolytic copper, 18% of arsenic brass return charge, 0.2% of arsenic-copper alloy, boron Copper alloy 0.1%, zinc ingot 30%. Each of the above-mentioned raw materials is a dry raw material.

[0031] The production method for producing dezincification-resistant extruded and drawn brass tubes using the above-mentioned brass tube raw materials includes: melting and casting solid copper ingots → extruding solid copper ingots into copper tubes → stretching → annealing → finished copper tube inspection → finished copper tubes Tube storage; where:

[0032] The step of described casting solid copper ingot comprises:

[0033] 1) The industrial voltage and high voltage are 380V. The electrolytic copper raw materials accounting for 46% of the brass tube raw materials are put into the ...

Embodiment 2

[0052] Embodiment 1 of the present invention discloses a formula for anti-dezincification extrusion-drawn brass tube, including the following raw material composition in weight percentage: electrolytic copper 48%, arsenic brass return charge 19%, arsenic-copper alloy 0.3%, boron Copper alloy 0.2%, zinc ingot 31%. Each of the above-mentioned raw materials is a dry raw material.

[0053] The production method for producing dezincification-resistant extruded and drawn brass tubes using the above-mentioned brass tube raw materials includes: melting and casting solid copper ingots → extruding solid copper ingots into copper tubes → stretching → annealing → finished copper tube inspection → finished copper tubes Tube storage; where:

[0054] The step of described casting solid copper ingot comprises:

[0055] 1), the industrial voltage is 380V, and the electrolytic copper raw material accounting for 48% of the brass tube raw material is put into the power frequency copper melting ...

Embodiment 3

[0070] Embodiment 3 of the present invention discloses a formula for anti-dezincification extrusion-drawn brass tube, which includes the following raw material composition in weight percentage: electrolytic copper 50%, arsenic brass return charge 20%, arsenic-copper alloy 0.3%, boron Copper alloy 0.3%, zinc ingot 32%. Each of the above-mentioned raw materials is a dry raw material.

[0071] The production method for producing dezincification-resistant extruded and drawn brass tubes using the above-mentioned brass tube raw materials includes: melting and casting solid copper ingots → extruding solid copper ingots into copper tubes → stretching → annealing → finished copper tube inspection → finished copper tubes Tube storage; where:

[0072] The step of described casting solid copper ingot comprises:

[0073] 1), the industrial voltage is 380V, and the electrolytic copper raw material accounting for 50% of the brass tube raw material is put into the power frequency copper mel...

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Abstract

The invention provides a formula of an anti-dezincification extrusion drawing brass pipe and a production method thereof. The method comprises the following production steps: with 46-50% of electrolytic copper, 18-20% of arsenic brass foundry return, 0.2-0.3% of arsenic copper alloy, 0.1-0.3% of boron copper alloy and 30-32% of zinc ingot as raw materials, sequentially performing casting of a solid copper ingot, extrusion of the solid copper ingot into a copper pipe, stretching, annealing, inspection of a finished product of the copper pipe and storage of the finished product of the copper pipe. The brass pipe produced by use of the formula and method provided by the invention has the advantages of relatively good anti-dezincification and anti-corrosion properties and surface quality, light weight, good heat conductivity, high low-temperature strength, firmness and good anti-dezincification and anti-corrosion properties.

Description

technical field [0001] The invention relates to a plumbing and bathroom component and a production method thereof, in particular to a formulation of an anti-dezincification extrusion-drawn brass tube and a production method thereof. Background technique [0002] Existing brass tubes are just ordinary brass tubes produced by synthesis of copper and zinc, which have poor dezincification and corrosion resistance. Since 2006, the European Union, Australia, and Japan have clearly stipulated that after 2006, sanitary copper products entering these countries must use dezincification-resistant, corrosion-resistant, copper materials, and be bound by law. At present, there are only a few countries in the world that can really produce such copper materials such as Japan, South Korea, and Sweden. At the same time, 80% of the world's sanitary ware production bases are in China. At present, most of the domestic demand for this type of copper depends on imports. The company has establish...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04B21C37/06C22B9/10B22D11/18
Inventor 曾华文
Owner 龙岩市鸿航金属科技有限公司
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