Alloy pipe made of novel environment-friendly lead-free alloy material and used for ocean engineering

A lead-free alloy and marine engineering technology, 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 the requirements of 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

[0025] The preparation method of the environmentally friendly lead-free alloy new material alloy pipe that can be used in marine engineering of the present invention comprises the following steps:

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Step 4: Keep warm for 40-60 minutes, then heat up to 1300°C again, and turn on the ...

Embodiment 1

[0035] According to mass percentage: zinc (Zn): 1%, tin (Sn): 6%, silicon (Si): 0.5%, and the balance is copper (Cu) to prepare raw materials.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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 fr...

Embodiment 2

[0046] According to mass percentage, zinc (Zn): 1.3%, tin (Sn): 6.2%, silicon (Si): 0.7%, and the balance is copper (Cu) to prepare raw materials.

[0047] First, place electrolytic copper, tin, zinc, and silicon in a power frequency electric furnace according to the ratio, heat to 1260°C to completely melt, and then keep warm to 1200°C.

[0048] 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.

[0049] 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.

[0050]Then, further keep it warm for 55 minutes, then reheat to 1300°C, and turn on the vibration device of the industrial frequency electric furnace. The vibration fr...

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Abstract

The invention provides an alloy pipe made of a novel environment-friendly lead-free alloy material and used for ocean engineering. The alloy pipe comprises, by weight percentage, 1% to 4.5% of zinc (Zn), 6% to 8% of tin (Sn), 0.5% to 1.5% of silicon (Si) and the balance copper (Cu). By the adoption of the alloy pipe made of the novel environment-friendly lead-free alloy material and used for ocean engineering, the traditional lead element is replaced with the silicon element, silicon, tin, zinc and copper are smelted at the proper temperature according to a certain proportion, blank ingots are continuously cast, an extruding machine is used for extrusion so that the alloy pipe capable of replacing a tin bronze pipe and 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 tube of an environmentally friendly lead-free alloy new material that can be used in ocean engineering. 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] Aiming at the problems existing in the above-mentioned prior art, the object of the present invention is to provide a new material alloy tube of lead-free alloy which can be used in ocean engineering, which retains the existing mechanical properties such as tin bronze chips and satisfies the requirements for environmental performance. Require. [0004] In order to realize the foregoing invention object, the technical scheme that the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02C22F1/08
Inventor 孙飞赵勇埃里克斯-高登
Owner SUZHOU JINCANG ALLOY NEW MATERIAL
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