Oxygen-controlled 300-400 DEG C stainless-steel-compatible liquid metal in photothermal field and process 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: 2019-10-18
深圳市兴荣晟物业管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is to say, after a period of use, the pipes will crack due to the erosion o...

Method used

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  • Oxygen-controlled 300-400 DEG C stainless-steel-compatible liquid metal in photothermal field and process thereof

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Effect test

Embodiment 1

[0019] A 300-400-degree oxygen-controlled liquid metal compatible with stainless steel in the photothermal field and its technology. In terms of weight percentage, the alloy composition is In: 1.2wt.%, Bi: 10.5wt.%, Mn: 2.1wt.%, Zn: 25.0wt.%, Cd: 10.0wt.%, Pb: 2.5wt.% , Ga: 2.1wt.%, the balance is tin; the oxide composition for controlling oxygen activity is PbO: 12.0wt.%, AgO: 5.2wt.%, MnO: 2.4wt.%, MgO: 10.8wt.%, CoO: 3.1wt.%, the balance is Fe 2 o 3 .

[0020] The above-mentioned 300-400-degree oxygen-controlled liquid metal compatible with stainless steel and its technology in the photothermal field 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 melt evenly, after cooling, remo...

Embodiment 2

[0023] A 300-400-degree oxygen-controlled liquid metal compatible with stainless steel in the photothermal field and its technology. In terms of weight percentage, the alloy composition is In: 2.8wt.%, Bi: 14.0wt.%, Mn: 2.6wt.%, Zn: 25.0wt.%, Cd: 10.0wt.%, Pb: 4.0wt.% , Ga: 3.5wt.%, the balance is tin; the oxide composition for controlling oxygen activity is PbO: 18.0wt.%, AgO: 7.0wt.%, MnO: 4.0wt.%, MgO: 18.0wt.%, CoO: 4.0wt.%, the balance is Fe 2 o 3 .

[0024] The above-mentioned 300-400-degree oxygen-controlled liquid metal compatible with stainless steel and its technology in the photothermal field 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 280 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy melt evenly. After cooling, re...

Embodiment 3

[0027] A 300-400-degree oxygen-controlled liquid metal compatible with stainless steel in the photothermal field and its technology. In terms of weight percentage, the alloy composition is In: 2.0wt.%, Bi: 12.0wt.%, Mn: 2.5wt.%, Zn: 24.0wt.%, Cd: 11.0wt.%, Pb: 3.0wt.% , Ga: 3.0wt.%, the balance is tin; the oxide composition for controlling oxygen activity is PbO: 15.0wt.%, AgO: 6.0wt.%, MnO: 3.0wt.%, MgO: 15.0wt.%, CoO: 4.0wt.%, the balance is Fe 2 o 3 .

[0028] The above-mentioned 300-400-degree oxygen-controlled liquid metal compatible with stainless steel and its technology in the photothermal field 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 250 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy melt evenly. After cooling, rem...

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Abstract

The invention discloses oxygen-controlled 300-400 DEG C stainless-steel-compatible liquid metal in the photothermal field and a process thereof. The alloy compositions include, by weight percent, 1.0-3.0% of In, 10.0-15.0% of Bi, 2.0-3.0% of Mn, 20.0-30.0% of Zn, 10.0-12.0% of Cd, 2.0-5.0% of Pb, 2.0-4.0% of Ga and the balance being Sn, wherein oxygen activity controlled oxide compositions include, by weight, 10.0-20.0% of PbO, 5.0-8.0% of AgO, 2.0-5.0% of Mn, 10.0-20.0% of MgO, 3.0-5.0% of CoO and the balance being Fe2O3. The liquid metal is used in a heat colleting module and a heat transfermodule of a solar photothermal system, an oxygen control module is adopted for controlling the oxygen activity effectively, and a compact layer of oxide film can be formed on the surface of a stainless steel pipeline so as to inhibit erosion of the liquid metal to the pipeline material; and the process is simple, and besides, the effects for improving heat transfer and prolonging the service lifeare 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): C22C30/04C22C30/06C22C32/00C09K5/12
CPCC09K5/12C22C30/04C22C30/06C22C32/001
Inventor 王金辉
Owner 深圳市兴荣晟物业管理有限公司
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