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Nickel-free white copper alloy containing rare earth additional elements and method for manufacturing plates made of same

A rare earth element and plate processing method technology, which is applied in the field of copper-based nickel-free nickel-nickel alloy and its plate processing, can solve the problems of no optimization of alloy composition, etc., and achieve the effect of reducing preparation cost, reducing heating energy consumption, and simple preparation method

Inactive Publication Date: 2010-12-01
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the processing method disclosed in this patent is only a wire rod processing technology, and does not further optimize the composition of the alloy and extend it to other processing technologies such as alloy plates, and the application range of nickel-free nickel-nickel copper plates is wider than that of wire rods.

Method used

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  • Nickel-free white copper alloy containing rare earth additional elements and method for manufacturing plates made of same
  • Nickel-free white copper alloy containing rare earth additional elements and method for manufacturing plates made of same
  • Nickel-free white copper alloy containing rare earth additional elements and method for manufacturing plates made of same

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Embodiment 1

[0033] The alloy of the invention is smelted using the following raw materials: electrolytic copper, copper-cerium master alloy, copper-iron master alloy, copper-zirconium master alloy, copper-titanium master alloy, pure manganese, pure aluminum and pure zinc. The composition of the alloy is shown in Example 1 of Table 1.

[0034]1. Smelting: Smelting is carried out using the smelting equipment used in the industry. The order of adding the alloy is: electrolytic copper, heating until the copper melts, adding pure aluminum, adding a covering agent (borax or graphite or charcoal) and keeping it warm for 5 to 10 minutes, then adding copper-iron master alloy, copper-titanium master alloy, pure Manganese, copper-cerium master alloy, copper-zirconium master alloy and pure zinc are added at the end, the melting temperature is 1250-1300°C, and the casting temperature is 1150-1200°C.

[0035] 2. Hot rolling: After the ingot is milled, it is heated to 850°C in a heating furnace, homoge...

Embodiment 2

[0042] The alloy of the present invention is smelted using the following raw materials: electrolytic copper, copper-iron master alloy, copper-titanium master alloy, copper-zirconium master alloy, copper-lanthanum master alloy, pure manganese, pure aluminum, pure zinc. The composition of the alloy is shown in Example 2 of Table 1.

[0043] 1. Smelting: Smelting is carried out using the smelting equipment used in the industry. The order of adding the alloy is: electrolytic copper, heating until the copper melts, adding pure aluminum, adding a covering agent (borax or graphite or charcoal) and keeping it warm for 5 to 10 minutes, then adding copper-iron master alloy, copper-titanium master alloy, pure Manganese, copper-lanthanum master alloy, copper-zirconium master alloy and pure zinc are added at the end, the melting temperature is 1250-1300°C, and the casting temperature is 1150-1200°C.

[0044] 2. Hot rolling: After the ingot is milled, it is heated to 850°C in a heating fur...

Embodiment 3

[0051] The alloy of the present invention is smelted using the following raw materials: electrolytic copper, copper-iron master alloy, copper-titanium master alloy, copper-zirconium master alloy, copper-iridium master alloy, pure manganese, pure aluminum, pure zinc. The composition of the alloy is shown in Example 3 of Table 1.

[0052] 1. Smelting: Smelting is carried out using the smelting equipment used in the industry. The order of adding the alloy is: electrolytic copper, heating until the copper melts, adding pure aluminum, adding a covering agent (borax or graphite or charcoal) and keeping it warm for 5 to 10 minutes, then adding copper-iron master alloy, copper-titanium master alloy, pure Manganese, copper-iridium master alloy, copper-zirconium master alloy and pure zinc are added at the end, the melting temperature is 1250-1300°C, and the casting temperature is 1150-1200°C.

[0053] 2. Hot rolling: After the ingot is milled, it is heated to 850°C in a heating furnace...

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Abstract

The invention discloses nickel-free white copper alloy containing rare earth additional elements and a method for processing plates made of the same. The nickel-free white copper alloy comprises the following components in percentage by weight: 0.02 to 0.1 percent of rare earth elements, 5 to 20 percent of zinc, 8 to 18 percent of manganese, 0.5 to 2.0 percent aluminum, 0 to 0.5 percent of iron, 0 to 0.5 percent of titanium, 0 to 0.1 percent of zirconium and the balance of copper. An alloy processing method comprises the following major technological processes of: alloy smelting and casting, hot rolling, thermal annealing, cold rolling and the like. The method is characterized in that: copper, zinc, manganese and aluminum are taken as main alloy elements; rare earth elements such as lanthanum, cerium and iridium as well as trace elements such as iron, zirconium and titanium are added in an alloy smelting process; and a human-friendly and environmental-friendly nickel-free white copper alloy plate is manufactured by the technological methods of high-temperature alloying, degassing, impurity removing, casting, cast ingot hot rolling, thermal annealing, cold rolling, finished product annealing and the like.

Description

technical field [0001] The invention relates to a copper-based nickel-free white copper alloy (Cu-Zn-Mn-Al-Re) containing rare earth elements and a plate processing method thereof. Background technique [0002] Cupronickel refers to a copper alloy with nickel as the main alloying element. Cupronickel is divided into ordinary cupronickel, iron cupronickel, manganese cupronickel, zinc cupronickel and aluminum cupronickel. Cupronickel not only has a silver-white appearance, but also has excellent corrosion resistance, high strength and plasticity, and good processing performance. It is widely used to manufacture eye frames, zippers, buttons, watch straps, and some decorative crafts. [0003] In addition to the silvery white color of white copper, white manganese brass is also called White Tombasil, which is also a white copper alloy. The American standard is C99700. It is mainly used for building components, architectural decoration accessories, ship components, etc. Another a...

Claims

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Application Information

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IPC IPC(8): C22C9/04C22F1/08
Inventor 柳瑞清蔡薇肖翔鹏
Owner JIANGXI UNIV OF SCI & TECH
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