Preparing method for novel environment-friendly low-temperature alloy

A low-temperature alloy and environmentally friendly technology, applied in the field of metallurgy, can solve the problems of expensive preparation, limited use range, high usage of indium, etc., and achieve a wide range of uses

Inactive Publication Date: 2017-05-31
HAINAN VOCATIONAL COLLEGE OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the rapid development of the economy, the requirements for the environment are getting higher and higher, and the traditional low-temperature alloys containing lead and cadmium have been gradually replaced. The invention patent CN100404716C discloses a pollution-free low-melting alloy, and the invention patent 201510843770.7 also discloses a A low-melting-point alloy with a melting point of 40-60°C and a preparation method thereof. The raw materials of the alloy are bismuth, tin, gallium, and indium, and a lead-free, cadmium-free, environmentally friendly low-temperature alloy is prepared through melting and in-situ reaction, but this The amount of indium used in the two inventions is very high, the preparation is expensive, it is not easy to promote in the market, and the scope of use is limited

Method used

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  • Preparing method for novel environment-friendly low-temperature alloy

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Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a novel environment-friendly low-temperature alloy:

[0019] Among them, the content of each element includes 45 parts of tin, 20 parts of bismuth, 18 parts of antimony, 2 parts of copper, 1.2 parts of cobalt, and 2.3 parts of manganese by weight ratio;

[0020] The preparation method comprises the following steps:

[0021] (1) Weigh tin, bismuth, and antimony according to the mass ratio, and mix them to obtain alloy powder, put the alloy powder into liquid paraffin, wherein the ratio of alloy powder mass to liquid paraffin volume is 1g:170ml, heat to 335°C, Heat preservation, after the alloy powder is completely melted, continue heat preservation and set aside;

[0022] (2) Weigh copper and manganese according to the ratio, first add copper to high-frequency induction furnace, heat to 1100°C, keep warm, make copper completely melted, then add manganese, after manganese is completely melted, continue to keep warm for 1 hour, Add 0.5 parts of di...

Embodiment 2

[0026] A preparation method of a novel environment-friendly low-temperature alloy:

[0027] Among them, the content of each element includes 30 parts of tin, 18 parts of bismuth, 15 parts of antimony, 3.5 parts of copper, 01.7 parts of cobalt, and 2.7 parts of manganese by weight ratio;

[0028] The preparation method comprises the following steps:

[0029] (1) Weigh tin, bismuth, and antimony according to the mass ratio, and mix them to obtain alloy powder, put the alloy powder into liquid paraffin, wherein the mass ratio of alloy powder to liquid paraffin is 1g:165ml, heat to 330°C, Heat preservation, after the alloy powder is completely melted, continue heat preservation and set aside;

[0030] (2) Weigh copper and manganese according to the ratio, first add copper to high-frequency induction furnace, heat to 1100°C, keep warm, make copper completely melted, then add manganese, after manganese is completely melted, continue to keep warm for 1 hour, Add 0.5 parts of diocty...

Embodiment 3

[0034] A preparation method of a novel environment-friendly low-temperature alloy:

[0035] Among them, the content of each element includes 60 parts of tin, 32 parts of bismuth, 27 parts of antimony, 1.5 parts of copper, 0.8 parts of cobalt, and 2.2 parts of manganese by weight ratio;

[0036] The preparation method comprises the following steps:

[0037] (1) Weigh tin, bismuth, and antimony according to the mass ratio, and mix them to obtain alloy powder, put the alloy powder into liquid paraffin, wherein the mass ratio of alloy powder to liquid paraffin is 1g:180ml, heat to 340°C, Heat preservation, after the alloy powder is completely melted, continue heat preservation and set aside;

[0038] (2) Weigh copper and manganese according to the ratio, first add copper to high-frequency induction furnace, heat to 1100°C, keep warm, make copper completely melted, then add manganese, after manganese is completely melted, continue to keep warm for 1 hour, Add 0.5 parts of dioctyl...

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Abstract

The invention discloses a preparing method for a novel environment-friendly low-temperature alloy. The novel environment-friendly low-temperature alloy comprises elements including, by weight, 30-60 parts of tin, 18-32 parts of bismuth, 15-27 parts of antimony, 1.5-3.5 parts of copper, 0.8-1.7 parts of cobalt and 2.2-2.7 parts of manganese. The low-temperature alloy is good in ductility, the melting range is short, and the low-temperature alloy can be widely applicable to preparing of mother boards in various industries and is particularly used for manufacturing mother boards of copper pot artware or precision artware, the mother board manufacturing difficulty can be lowered, the manufacturing precision is improved, the manufacturing cost is low, and the preparing method is suitable for industrial production.

Description

technical field [0001] The invention relates to a metallurgical technology, in particular to a preparation method of a novel environment-friendly low-temperature alloy. Background technique [0002] Low-temperature alloys are indispensable key materials in industries such as aerospace, aviation, electronics, and handicrafts, and are mainly used to prepare complex motherboards, fuses, etc. [0003] With the rapid development of the economy, the requirements for the environment are getting higher and higher, and the traditional low-temperature alloys containing lead and cadmium have been gradually replaced. The invention patent CN100404716C discloses a pollution-free low-melting alloy, and the invention patent 201510843770.7 also discloses a A low-melting-point alloy with a melting point of 40-60°C and a preparation method thereof. The raw materials of the alloy are bismuth, tin, gallium, and indium, and a lead-free, cadmium-free, environmentally friendly low-temperature alloy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C13/02C22C30/04C22C1/02
CPCC22C13/02C22C1/02C22C30/02C22C30/04
Inventor 牟玉兰
Owner HAINAN VOCATIONAL COLLEGE OF SCI & TECH
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