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Copper base alloy pipe containing silicon and aluminium and preparation method thereof

A technology of copper-based alloy and alloy tube, which is applied in the field of non-ferrous metal processing, can solve the problems of polluted air, emission of lead dust, harmfulness to human body, etc., and achieve the effect of inhibiting lead dissolution and reducing pollution

Inactive Publication Date: 2013-07-10
SUZHOU JINCANG ALLOY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when lead is heated to 400-500 ° C, lead vapor will escape and form lead smoke. In the process of making lead powder and plates with lead ingots, lead dust will be emitted to pollute the air. When the lead smoke in the air It is harmful to the human body when it reaches a certain concentration

Method used

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  • Copper base alloy pipe containing silicon and aluminium and preparation method thereof
  • Copper base alloy pipe containing silicon and aluminium and preparation method thereof
  • Copper base alloy pipe containing silicon and aluminium and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the copper-based alloy tube of embodiment 1, such as figure 1 As shown, including the following steps:

[0027] 1) Place the electrolytic copper, silicon, aluminum, and zinc in a power frequency electric furnace according to the ratio, heat it to 1200-1250 degrees, and heat it to 1150 degrees after being completely melted;

[0028] 2) After fully stirring the completely melted alloy liquid with a graphite rod, cover it with high-purity flake graphite powder to prevent it from oxidizing, the thickness is 10-15cm;

[0029] 3) After holding for 1-1.5 hours, use the German Spike direct-reading spectrometer to conduct 3-6 component inspections on the samples taken out of the power frequency electric furnace to confirm that the alloy composition is within the specified range;

[0030] 4) After further holding for 50-60 minutes, the temperature is raised to 1200 degrees again, and the vibration device of the power frequency electric furnace is turned on, and ...

Embodiment 2

[0036] A copper-based alloy tube containing silicon and aluminum, the mass percentage composition of which is: copper 76%; silicon 0.05%; aluminum 1.8%; the balance is zinc.

[0037] The preparation method of the silicon-and-aluminum-containing copper-based alloy tube of Example 2 is similar to that of Example 1, except for the ratio of the raw materials.

Embodiment 3

[0039] A copper-based alloy tube containing silicon and aluminum, the mass percentage composition of which is: copper 76%; silicon 0.05%; aluminum 1.8%; the balance is zinc.

[0040] The preparation method of the silicon-and-aluminum-containing copper-based alloy tube of Example 3 is similar to that of Example 1, except for the ratio of the raw materials.

[0041] Table 1 shows the properties of the new lead-free copper alloy materials for welding and the traditional welding materials provided by the present invention.

[0042] Table 1 Performance comparison between copper-based alloy tubes containing silicon and aluminum and lead-tin bronze tubes

[0043]

[0044]

[0045] The copper-based alloy tube containing silicon and aluminum of the present invention maintains or does not significantly reduce the machinability and wear resistance of the original lead-containing tin bronze, eliminates the amount of lead added, and suppresses lead by adding silicon and aluminum elements Dissoluti...

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Abstract

The invention discloses a copper base alloy pipe containing silicon and aluminium and a preparation method thereof. The copper base alloy pipe comprises the following ingredients by weight percent: 72-76% of copper, 0.05-0.5% of silicon, 1-1.8% of aluminium and the balance of zinc. On the basis of maintaining or not obviously reducing the cutability, wear resistance and antifriction property of original lead and tin containing bronze, the copper base alloy puts an end to addition of lead and inhibits dissolution of lead by adding elements such as silicon and aluminium, thus effectively reducing the pollution.

Description

Technical field [0001] The invention belongs to the technical field of non-ferrous metal processing, and specifically relates to a copper-based alloy tube containing silicon and aluminum and a preparation method thereof. Background technique [0002] Lead-containing copper alloys have good cutting performance and anti-friction and wear resistance properties, mainly because lead exists as a single item in copper alloys, which can play a good chip breaking effect during cutting. In the friction and wear environment, due to the very low shear strength of lead, the lead on the surface of the copper alloy parts makes the friction coefficient of the lead-containing copper alloy relatively low. Therefore, lead is more commonly used in brass alloys. [0003] However, when lead is heated to 400-500℃, lead vapor will escape and lead smoke will be formed. Lead dust will be emitted during the process of manufacturing lead powder and electrode plates from lead ingots, polluting the air. When l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04B22D11/00C22F1/08
CPCB22D11/00C22C9/04C22F1/08B22D11/004
Inventor 孙飞赵勇
Owner SUZHOU JINCANG ALLOY NEW MATERIAL
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