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Flexible corrosion-resistant high-heat-conduction Sn-Li-Au tin-lithium alloy

A technology with high thermal conductivity and corrosion resistance, applied in the field of alloys, it can solve problems such as the inability to meet the requirements of combustion resistance, and achieve the effects of excellent alloy yield, high hot cracking tendency, excellent heat transfer performance and corrosion resistance.

Inactive Publication Date: 2018-06-22
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a structural material, it is far from enough to meet the requirements of only having the combustion resistance during smelting. More importantly, the final tin-lithium alloy product must also have satisfactory mechanical strength, at least to reach the commonly used Mechanical properties of tin-lithium alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A flexible, corrosion-resistant, high thermal conductivity Sn-Li-Au tin-lithium alloy smelted at 250 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.4wt.%, Au: 2.4wt.%, Sc: 0.3wt.%, Ge: 0.2wt.%, Si: 0.3wt.%, Sm: 0.1wt .%, the balance is tin. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace protected by the atmosphere, and use a silicon carbide crucible; induction heating to 250 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 250°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square ingots and round ingots. The ingot moving speed is 8m / min. The ingot can be used as a raw material for subsequent pressure processing to prepare the required filamentous or thin film high thermal conductivity tin a...

Embodiment 2

[0020] A flexible, corrosion-resistant, high thermal conductivity Sn-Li-Au tin-lithium alloy melted at 270 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.5wt.%, Au: 2.3wt.%, Sc: 0.2wt.%, Ge: 0.3wt.%, Si: 0.2wt.%, Sm: 0.1wt .%, the balance is tin. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 270 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 270°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 8m / min. The ingot can be used as a raw material for subsequent pressure processing to prepare the required filamentous or thin film high thermal conductivity tin alloy. Co...

Embodiment 3

[0022] A flexible, corrosion-resistant, high thermal conductivity Sn-Li-Au tin-lithium alloy smelted at 290 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.3wt.%, Au: 3.2wt.%, Sc: 0.3wt.%, Ge: 0.3wt.%, Si: 0.2wt.%, Sm: 0.1wt .%, the balance is tin. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 290 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 290°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 8m / min. The ingot can be used as a raw material for subsequent pressure processing to prepare the required filamentous or thin film high thermal conductivity tin alloy....

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PUM

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Abstract

The invention discloses flexible corrosion-resistant high-heat-conduction Sn-Li-Au tin-lithium alloy and a processing process thereof. The flexible corrosion-resistant high-heat-conduction Sn-Li-Au tin-lithium alloy is prepared from the following components in percentage by weight: 1.2-1.6wt% of Li, 1.5-3.6wt% of Au, 0.2-0.4wt% of Sc, 0.2-0.4wt% of Ge, 0.2-0.4wt% of Si, 0.1-0.2wt% of Sm and the balance of tin. The tin-lithium alloy has high heat conduction and corrosion resistance, which are not possessed by conventional tin alloy, has softness of pure tin, and has a melting point of 120-140 DEG C. The alloy is further applied specifically on occasions that the calorific value is great, and an apparatus needs to be light, and is convenient for industrial large-scale application.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a tin-lithium alloy. Background technique [0002] Tin is a silver-white metal with low melting point, good plasticity, corrosion resistance, fatigue resistance and non-toxicity. The strength and hardness of tin are not high, but it has applicable mechanical properties. Therefore, after forming an alloy with aluminum, copper, etc., its strength and hardness are greatly improved, and its creep resistance is also greatly improved. Generally speaking, tin alloys have the following advantages: 1:) Tin-based alloys have low melting point, good melt fluidity, relatively simple preparation technology, easy fusion welding, brazing and plastic processing, strength and hardness close to low carbon steel, resistance Pressure and wear resistance are better. 2:) It has good remelting and recasting properties, and the residual waste is easy to recycle and remelt for repeated use, and the perf...

Claims

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Application Information

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IPC IPC(8): C22C13/00C22C1/02
CPCC22C13/00C22C1/02
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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