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Preparation method of oxidation resistant tin alloys

A tin alloy and tin oxide technology, applied in the field of alloys, can solve problems such as difficulty in meeting production requirements, and achieve the effect of improving oxidation resistance and oxidation resistance.

Active Publication Date: 2014-10-29
广州本立智控科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under atmospheric conditions, the surface of liquid Sn metal is easier to oxidize than Sn-Pb. The oxidation resistance of tin alloy is an important performance as a soldering raw material. At the same time, its connection strength is also a very important performance. However, due to the production of Due to cost and other reasons, it is difficult to meet the production demand, so it is urgent to develop a lead-free tin alloy that can resist surface oxidation and provide sufficient connection strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of anti-oxidation tin alloy, is characterized in that, comprises the steps:

[0022] (1) According to the proportion of alloy components, the mixture is put into a vacuum heating furnace and heated at a heating temperature of 442 ° C. The raw materials are melted into an alloy liquid and then kept warm; Composition: Ag: 2.96%, Cu: 1.28%, Zn: 9.2%, Bi: 0.3%, In: 0.39%, P: 0.21%, Zr: 0.71%, Y: 0.52%, Sc: 0.61%, Mg: 0.069%, Ni: 0.42%, Al: 0.096%, Ge: 0.34%, the balance is Sn and inevitable impurities; in the batching process, pure metal is used for batching with low melting point, and master alloy is used for batching for high melting point;

[0023] (2) Transfer the alloy liquid to a high-temperature metal evaporator, and use the plasma arc as a heating source, the working gas pressure is 1.2MPa, and the plasma arc voltage is 221V, until the metal liquid is heated into steam;

[0024] (3) Passing the steam obtained in step (2) into the partic...

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Abstract

The invention relates to a preparation method of oxidation resistant tin alloys. The preparation method comprises the steps of mixing, evaporation, condensation, quenching, tempering, freezing treatment, re-quenching, re-tempering and the like. The connection strength and oxidation resistance of the tin alloys are greatly improved through specific element matching and determination of the preparation method.

Description

technical field [0001] The invention belongs to the field of alloys, in particular to a preparation method of an oxidation-resistant tin alloy. Background technique [0002] At present, more than 60,000 tons of solder alloys based on tin alloys are consumed worldwide every year. Under atmospheric conditions, the surface of liquid Sn metal is easier to oxidize than Sn-Pb. The oxidation resistance of tin alloy is an important performance as a soldering raw material. At the same time, its connection strength is also a very important performance. However, due to the production of Due to cost and other reasons, it is difficult to meet the production demand. Therefore, it is urgent to develop a lead-free tin alloy that can resist surface oxidation and provide sufficient connection strength. Contents of the invention [0003] The object of the present invention is to propose a kind of preparation method of oxidation-resistant tin alloy; [0004] 1. a preparation method of anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C13/00B22F1/00C22F1/16
Inventor 林娟娟
Owner 广州本立智控科技股份有限公司