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Alloy rod made of novel environment-friendly lead-free alloy material

A technology of lead-free alloys and alloy rods, applied in the field of alloy materials, can solve the problems that bronze alloys cannot meet the requirements, and achieve the effect of retaining mechanical properties and meeting environmental protection performance

Inactive Publication Date: 2016-01-13
SUZHOU JINCANG ALLOY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing tin bronze materials often add lead elements in order to achieve easy chipping performance. With the obvious improvement of environmental protection awareness, bronze alloys containing lead elements can no longer meet the requirements of high-end markets at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method of the environment-friendly lead-free alloy new material alloy rod of the present invention comprises the following steps:

[0027] Step 1: Place electrolytic copper, tin, zinc and silicon in a power frequency electric furnace according to the ratio, heat to 1250°C-1300°C to completely melt and then keep warm to 1200°C.

[0028] Step 2: After fully stirring the completely melted alloy liquid with a special graphite tool, cover the alloy liquid with high-purity scaly graphite powder with a thickness of 11-13cm to prevent oxidation, and keep it warm for 1.2-1.5 hours.

[0029] Step 3: Use the SPECTRO direct-reading spectrometer to inspect the composition of the sample taken from the power frequency electric furnace three to five times to ensure that the composition of the alloy liquid is within the specified range.

[0030] Step 4: Keep warm for 40-60 minutes, then heat up to 1300°C again, and turn on the vibration device of the power frequency elec...

Embodiment 1

[0036] According to mass percentage: zinc (Zn): 7%, tin (Sn): 2%, silicon (Si): 1%, and the balance is copper (Cu) to prepare raw materials.

[0037] First, place electrolytic copper, tin, zinc, and silicon in a power frequency electric furnace according to the ratio, heat it to 1250°C and completely melt it, then keep it warm at 1200°C.

[0038] Next, after fully stirring the completely melted alloy liquid with a special graphite tool, cover the alloy liquid with a thickness of 11cm of high-purity scaly graphite powder to prevent oxidation, and keep it warm for 1.5 hours.

[0039] Then, use the SPECTRO direct-reading spectrometer to test the composition of the sample taken out of the power frequency electric furnace three times to confirm that the composition of the alloy liquid is within the specified range.

[0040] Then, further keep warm for 60 minutes, then reheat to 1300°C, and turn on the vibration device of the industrial frequency electric furnace. The vibration freq...

Embodiment 2

[0047] According to mass percentage: zinc (Zn): 7.3%, tin (Sn): 2.3%, silicon (Si): 1.2%, and the balance is copper (Cu) to prepare raw materials.

[0048] First, put electrolytic copper, tin, zinc, and silicon in a power frequency electric furnace according to the ratio, heat it to 1270°C and completely melt it, then keep it warm at 1200°C.

[0049] Next, after fully stirring the completely melted alloy liquid with a special graphite tool, cover the alloy liquid with a thickness of 12 cm of high-purity scaly graphite powder to prevent oxidation, and keep it warm for 1.4 hours.

[0050] Then, use the SPECTRO direct-reading spectrometer to test the composition of the sample taken out of the power frequency electric furnace four times to confirm that the composition of the alloy liquid is within the specified range.

[0051] Then, further keep warm for 55 minutes, then reheat to 1300°C, and turn on the vibration device of the industrial frequency electric furnace. The vibration ...

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Abstract

The invention provides an alloy rod made of a novel environment-friendly lead-free alloy material. The alloy rod comprises, by weight, 7% to 9% of zinc (Zn), 2% to 4% of tin (Sn), 1% to 4% of silicon (Si) and the balance copper (Cu). By the adoption of the alloy rod made of the novel environment-friendly lead-free alloy material, the traditional lead element is replaced with the silicon element, silicon, tin, zinc and copper are matched according to a certain proportion and smelted at the proper temperature, blank ingots are continuously cast, an extruding machine is used for extrusion so that the alloy rod completely capable of replacing a tin bronze rod containing the lead element can be produced, and under the condition that cost is not increased, the mechanical properties such as cuttings of existing tin bronze are reserved, and the requirement for the environment-friendly performance is met as well.

Description

technical field [0001] The invention relates to alloy materials, in particular to an alloy rod, an environment-friendly lead-free alloy new material. Background technique [0002] Existing tin bronze materials often add lead elements in order to achieve easy chipping performance. With the obvious improvement of environmental protection awareness, bronze alloys containing lead elements can no longer meet the requirements of high-end markets at home and abroad. Contents of the invention [0003] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an environmentally friendly lead-free alloy new material alloy rod, which retains the existing mechanical properties such as tin bronze chips, and at the same time meets the requirements for environmental protection performance. [0004] In order to realize the foregoing invention object, the technical scheme that the present invention adopts is as follows: [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C1/02
Inventor 孙飞赵勇赖万贤
Owner SUZHOU JINCANG ALLOY NEW MATERIAL
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