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Brass alloy for copper bar and manufacturing process thereof

A technology of brass alloy and manufacturing process, which is applied in the field of copper alloy production, can solve the problems of high production cost, complicated process, and low elongation rate, and achieve the effects of low production cost, simple production process, and high elongation rate

Inactive Publication Date: 2012-05-30
XINXING PIPES ZHEJIANG COPPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the defects of existing brass alloys used for copper bars such as low strength and low elongation, or meet the requirements of mechanical properties, but high production cost and complicated process, and provide a brass alloy, which produces copper The row has high strength, high elongation, not easy to crack, and good process performance

Method used

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  • Brass alloy for copper bar and manufacturing process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composition of the brass alloy in this embodiment is: copper 58.14%, nickel 2.34%, manganese 2.20%, aluminum 1.36%, lead 0.76%, iron 0.24%, and the balance is zinc and unavoidable impurities.

Embodiment 2

[0021] The composition of the brass alloy in this embodiment is: 58.26% copper, 2.42% nickel, 2.07% manganese, 1.50% aluminum, 0.81% lead, 0.26% iron, and the balance is zinc and unavoidable impurities.

Embodiment 3

[0023] The composition of the brass alloy in this embodiment is: 58.50% copper, 2.50% nickel, 1.90% manganese, 1.38% aluminum, 0.64% lead, 0.19% iron, and the balance is zinc and unavoidable impurities.

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Abstract

The invention discloses a brass alloy with high hardness and high elongation rate for a copper bar component of a tobacco shredder in the tobacco industry and a manufacturing process thereof, and aims to overcome the defect that the existing brass alloy for the copper bar has low strength and elongation rate or the mechanical property can meet the requirements but the production cost is relatively high and the process is complicated. The brass alloy disclosed by the invention comprises the following components in percentage by weight: 58.00-58.50% of copper, 2.20-2.50% of nickel, 1.90-2.20% of manganese, 1.20-1.50% of aluminum, less than 1.00% of lead, less than 0.30% of iron, and the balance of zinc and unavoidable impurities. The copper bar manufactured from the brass alloy disclosed bythe invention has high strength, high elongation rate and good technological properties, and does not crack easily.

Description

technical field [0001] The invention relates to the technical field of copper alloy production, in particular to a brass alloy with high hardness and high elongation for copper bar parts of shredding machines in the tobacco industry and a manufacturing process thereof. Background technique [0002] With the advancement of production technology in the tobacco equipment industry and the special requirements of some products, the requirements for the cutting machine are getting higher and higher, and the copper bar parts are required to have higher hardness and elongation, while the traditional copper bar alloy materials are used in production During the process, because the hardness and elongation did not meet the requirements, the copper bars produced were soft and easy to crack when used on the wire cutting machine. It doesn't work well. Adding rare earths to copper alloys can make the mechanical properties of copper bars meet the requirements. For example, the invention pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04C22C1/02
Inventor 陆川赵有军王坤张生
Owner XINXING PIPES ZHEJIANG COPPER