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A kind of copper base alloy material for electric equipment

A technology for copper-based alloys and power equipment, applied in the field of copper-based alloy materials for power equipment, can solve problems such as lead dissolution and environmental pollution, and achieve the effects of saving costs, reducing losses, and improving production efficiency

Active Publication Date: 2021-03-16
SUZHOU JINCANG ALLOY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because lead-containing copper alloy parts have the problem of lead dissolution during use, which causes environmental pollution, research on environmentally friendly copper alloys is being carried out widely.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The preparation method of the copper-based alloy material for electric equipment provided by the present invention comprises the following steps:

[0030] Step 1: Put phosphorus copper alloy, tin (Sn), zinc (Zn), antimony (Sb), silicon (Si), and nickel (Ni) in a power frequency electric furnace for vacuum melting according to the ratio, and heat to 1150°C- After complete melting at 1200°C, keep warm to 1100°C under vacuum for 30-40 minutes;

[0031] Step 2: Add metal aluminum and magnesium to the alloy solution in step 1 after heat preservation according to the proportion, and immediately stir the completely melted alloy liquid with a special graphite tool, and cover the alloy liquid with a thickness of 15-20cm. Pure flaky graphite powder to prevent oxidation, further heat preservation, the heat preservation time is 30-40 minutes;

[0032] Step 3: Use the Spike direct-reading spectrometer imported from Germany to inspect the composition of the sample taken from the pow...

Embodiment 1

[0039] Percentage by weight: aluminum (Al): 1%, phosphorus (P): 0.1%, antimony (Sb): 1%, magnesium (Mg): 0.2%, silicon (Si): 1%, tin (Sn): 6%, zinc (Zn): 1%, nickel (Ni): 4%, and the balance is copper (Cu) to prepare raw materials.

[0040] First: put phosphorus copper alloy, tin (Sn), zinc (Zn), antimony (Sb), silicon (Si), and nickel (Ni) in a power frequency electric furnace for vacuum melting according to the ratio, and heat to 1150°C to completely melt Afterwards, keep warm to 1100°C in a vacuum state, and keep warm for 40 minutes;

[0041] Next: Add metal aluminum and magnesium to the alloy solution in Step 1 after heat preservation in proportion, and immediately stir the completely melted alloy liquid with a special graphite tool, and then cover the alloy liquid with a thickness of 15cm. Graphite powder to prevent oxidation, further heat preservation, the heat preservation time is 40 minutes;

[0042] Next: use the German imported Spike direct-reading spectrometer to ...

Embodiment 2

[0050] Percentage by weight: aluminum (Al): 3%, phosphorus (P): 0.5%, antimony (Sb): 3%, magnesium (Mg): 0.5%, silicon (Si): 2%, tin (Sn): 8%, zinc (Zn): 2%, nickel (Ni): 6%, and the balance is copper (Cu) to prepare raw materials.

[0051] First: put phosphorus copper alloy, tin (Sn), zinc (Zn), antimony (Sb), silicon (Si), and nickel (Ni) in a power frequency electric furnace for vacuum melting according to the ratio, and heat to 1200 ° C to completely melt Afterwards, keep warm to 1100°C in a vacuum state, and keep warm for 30 minutes;

[0052] Next: add metal aluminum and magnesium to the alloy solution in Step 1 after heat preservation according to the proportion, and immediately stir the completely melted alloy liquid with a special graphite tool, and cover the alloy liquid with a thickness of 20cm. Graphite powder to prevent oxidation, further heat preservation, heat preservation time is 30 minutes;

[0053] Next: use the direct-reading spectrometer imported from Germ...

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Abstract

The invention provides a novel copper-base alloy material for electrical equipment. Components of the copper-base alloy material comprise aluminum, phosphorus, antimony, magnesium, silicon, tin, zinc,nickel and copper. All the components of the copper-base alloy material comprise, by weight percentage, 1-3% of aluminum, 0.1-0.5% of phosphorus, 1-3% of antimony, 0.2-0.5% of magnesium, 1-2% of silicon, 6-8% of tin, 1-2% of zinc, 4-6% of nickel and the balance copper. According to the novel copper-base alloy material for the electrical equipment, the magnesium element is added to replace a leadelement, and on the basis of keeping or not obviously lowering the cutability and anti-wear performance of original lead-bearing tin bronze, a copper alloy containing the lead element is replaced. A vertical continuous casting method is adopted for improving the production efficiency of smelt products, the loss is reduced, the cost is saved, and meanwhile, the lead-free copper-base alloy materialreplacing an existing lead-bearing copper alloy is achieved.

Description

technical field [0001] The invention relates to alloy materials, in particular to a copper-based alloy material for electric equipment. Background technique [0002] The reason why lead-containing copper alloy has good cutting performance and anti-friction and wear resistance is mainly because lead exists as a single item in copper alloy, which plays a good role in breaking chips during cutting; in the friction and wear environment, due to the lead The shear strength is very low, and the lead on the surface of copper alloy parts makes leaded copper alloys have a relatively low coefficient of friction. Therefore, lead element is more commonly used in brass alloys. [0003] Since lead-containing copper alloy parts have the problem of lead dissolution during use, causing environmental pollution, research on environmentally friendly copper alloys is being carried out widely. Contents of the invention [0004] In view of the problems existing in the above-mentioned prior art,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/02C22C1/02B21C37/06
CPCB21C37/06C22C1/02C22C9/02
Inventor 孙飞赵勇陈静
Owner SUZHOU JINCANG ALLOY NEW MATERIAL