Sn-Li-Pt lithium tin alloy close to pure tin heat transmission performance

A technology of sn-li-pt and heat transfer performance, applied in the field of alloys, can solve the problems of tin-lithium alloy research, development and application limitations, easy flux inclusions in castings, complex equipment, etc., to achieve excellent alloy yield, low Liquid-solid solidification temperature range and low production cost

Inactive Publication Date: 2018-06-01
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantages of high cost to varying degrees, flux inclusions in castings, and complicated equipment.
Therefore, the research, development and application of tin-lithium alloys are limited.
Therefore, in the industrial and national defense fields that urgently need large-scale use of tin-lithium alloys, there has always been a status quo that needs to be overcome urgently, such as low output, cumbersome processes, and high costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A Sn-Li-Pt tin-lithium alloy with heat transfer performance close to that of pure tin when smelted at 250 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.9wt.%, Pt: 0.5wt.%, Ge: 1.4wt.%, V: 0.3wt.%, Sc: 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 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 and round ingots. The ingot moves down at a speed of 10m / 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 allo...

Embodiment 2

[0020] A Sn-Li-Pt tin-lithium alloy with heat transfer performance close to that of pure tin when smelted at 270 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 2.0wt.%, Pt: 0.5wt.%, Ge: 1.4wt.%, V: 0.3wt.%, Sc: 0.3wt.%, 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 degrees for 10 minutes, it is poured 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 10m / 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 ...

Embodiment 3

[0022]A Sn-Li-Pt tin-lithium alloy with heat transfer performance close to that of pure tin when smelted at 290 degrees. In terms of weight percentage, the chemical composition of the alloy is: Li: 1.9wt.%, Pt: 0.5wt.%, Ge: 1.3wt.%, V: 0.4wt.%, Sc: 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 10m / 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 al...

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PUM

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Abstract

The invention discloses Sn-Li-Pt lithium tin alloy close to pure tin heat transmission performance and a processing process of the Sn-Li-Pt lithium tin alloy. The Sn-Li-Pt lithium tin alloy comprisesthe components of, by weight, 1.8-2.4% of Li, 0.4-0.6% of Pt, 1.2-1.6% of Ge, 0.2-0.4% of V, 0.2-0.4% of Sc, 0.1-0.2% of Sm, and the balance tin. The lithium tin alloy has a high heat transmission performance not possessed by a traditional tin alloy. The melting point is 120-130 degrees. According to the Sn-Li-Pt lithium tin alloy close to pure tin heat transmission performance, the alloy has further specific application in the site that heating value is large, and device lightweight is needed; industrialize large-scale application is facilitated.

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 one of the most widely used metals in industry and has many excellent properties that are in great demand in various industrial fields. 1:) Tin alloy has stable properties, low melting point, good fluidity, and small shrinkage; 2:) Tin alloy has fine grains, good toughness, suitable softness and hardness, smooth surface, no sand holes, no defects, no cracks, and wear-resistant Good light and electroplating effect; 3:) Tin alloy centrifugal casting has good performance and strong toughness, and can cast precision parts with complex shapes and thin walls, and the casting surface is smooth; 4:) Tin alloy products can be surface treated: electroplating, spraying, painting ;5.) The crystal structure of tin alloy is compact, which ensures small dimensional tolerance of castings in terms of raw materials, exquisite surface and fe...

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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