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Molten metal compatible with stainless steel and capable of controlling oxygen activity to be 200-300 degrees and technology thereof

A liquid metal and stainless steel technology, applied in the alloy field, can solve problems such as pipe cracking and heat transfer system failure, and achieve the effect of fast dissolution

Inactive Publication Date: 2019-10-11
深圳市兴荣晟物业管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, after a period of use, the pipes will crack due to the erosion of liquid metal, which will eventually lead to the failure of the heat transfer system.

Method used

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  • Molten metal compatible with stainless steel and capable of controlling oxygen activity to be 200-300 degrees and technology thereof

Examples

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Effect test

Embodiment 1

[0019] The invention relates to a liquid metal compatible with stainless steel whose oxygen activity is controlled at 200-300 degrees and its technology. In terms of weight percentage, the alloy composition is Ga: 0.5wt.%, In: 2.1wt.%, Pb: 4.5wt.%, Zn: 10.8wt.%, Bi: 4.0wt.%, Cd: 3.2wt.% , Sb: 5.0wt.%, the balance is tin; the oxide composition for controlling oxygen activity is PbO: 24.0wt.%, MnO: 3.2wt.%, MgO: 12.0wt.%, In 2 o 3 : 4.5wt.%, CuO: 3.2wt.%, the balance is Fe 2 o 3 .

[0020] The above-mentioned liquid metal whose oxygen activity is controlled at 200-300 degrees and is compatible with stainless steel and its technology include the following processing and use steps: (a) After the alloy is configured according to the required composition, it is placed in an induction furnace for Melting, and using graphite crucible for smelting under the protection of argon; heat preservation at 200 degrees for 10 minutes, use electromagnetic stirring to fully stir the alloy mel...

Embodiment 2

[0023] The invention relates to a liquid metal compatible with stainless steel whose oxygen activity is controlled at 200-300 degrees and its technology. In terms of weight percentage, the alloy composition is Ga: 0.7wt.%, In: 2.9wt.%, Pb: 5.6t.%, Zn: 18.0wt.%, Bi: 5.0wt.%, Cd: 4.8wt.% , Sb: 7.2wt.%, the balance is tin; the oxide composition for controlling oxygen activity is PbO: 28.0wt.%, MnO: 4.5wt.%, MgO: 16.0wt.%, In 2 o 3 :5.2wt.%, CuO: 4.1wt.%, the balance is Fe 2 o 3 .

[0024] The above-mentioned liquid metal whose oxygen activity is controlled at 200-300 degrees and is compatible with stainless steel and its technology include the following processing and use steps: (a) After the alloy is configured according to the required composition, it is placed in an induction furnace for Melting, and using a graphite crucible for smelting under the protection of argon; heat the alloy at 290 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy mel...

Embodiment 3

[0027] The invention relates to a liquid metal compatible with stainless steel whose oxygen activity is controlled at 200-300 degrees and its technology. In terms of weight percentage, the alloy composition is Ga: 0.6wt.%, In: 2.4wt.%, Pb: 5.1wt.%, Zn: 14.0wt.%, Bi: 4.8wt.%, Cd: 3.2wt.% , Sb: 6.0wt.%, the balance is tin; the oxide composition for controlling oxygen activity is PbO: 24.0wt.%, MnO: 3.2wt.%, MgO: 18.0wt.%, In 2 o 3 :5.0wt.%, CuO: 4.0wt.%, the balance is Fe 2 o 3 .

[0028] The above-mentioned liquid metal whose oxygen activity is controlled at 200-300 degrees and is compatible with stainless steel and its technology include the following processing and use steps: (a) After the alloy is configured according to the required composition, it is placed in an induction furnace for Melting, and using a graphite crucible for melting under the protection of argon; heat the alloy at 240 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy mel...

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Abstract

The invention discloses molten metal compatible with stainless steel and capable of controlling the oxygen activity to be 200-300 degrees and a technology thereof. The molten metal is prepared from, by weight, alloys including 0.5-0.8% of Ga, 2.0-3.0% of In, 4.0-6.0% of Pb, 10.0-20.0% of Zn, 4.0-6.0% of Bi, 3.0-5.0% of Cd, 5.0-8.0% of Sb and the balance tin, and oxides for controlling the oxygen activity including 20.0-30.0% of PbO, 3.0-5.0% of MnO, 10.0-20.0% of MgO, 4.0-6.0% of In2O3, 3.0-5.0% of CuO and the balance Fe2O3. The molten metal is adopted in heat collecting and heat transfer modules of a solar energy photo-thermal system, an oxygen control module is adopted for effective control over the oxygen activity, and a layer of dense oxidizing film can be generated on the surface of astainless steel pipeline to restrain the molten metal from corroding a pipeline material. The process is simple, and the effects of enhancing heat transfer and prolonging the service life are quite obvious.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a tin alloy. Background technique [0002] Essentially, common energy sources on Earth such as wind, water and biomass are derived from the sun. Even the fossil fuels on earth, such as coal, oil, natural gas, etc., are fundamentally ancient stored solar energy. With the rapid development of modern technology and the increasingly tight demand for energy, people are aware of the limitations of non-renewable energy, so the investment in research on new energy has greatly increased. As a permanent and clean energy, solar energy has a very bright future and is expected to develop greatly in the future. [0003] There are generally two types of solar energy utilization: photothermal and photovoltaic. Among them, the development of optoelectronics has been greatly inhibited due to the need for expensive silicon crystal photoelectric conversion processes. Photothermal utilization of s...

Claims

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Application Information

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IPC IPC(8): C22C13/00F24S60/30C09K5/12
CPCC09K5/12C22C13/00F24S60/30Y02E10/40
Inventor 王金辉
Owner 深圳市兴荣晟物业管理有限公司
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