• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1453523 Refining steel using induction furnaces ALLMANNA SVENSKA ELEKTRISKA AB 22 Feb 1974 [23 Feb 1973] 8120/74 Heading C7D Crude steel is refined by introduction into a first channel type induction furnace 11 with at least one refining additive (e.g. deoxidizing, desulphurizing or slag forming agents such as aluminium granules, burnt lime or Misch metal) sealing the furnace and refining the steel in a protective atmosphere (e.g. argon or nitrogen) and/or degassing under vacuum while stirring by means of indicator unit 21 and then transferring to a second channel type induction furnace 23 through a gas tight communicating means 22 and tapping from the second furnace 23 which acts as a heat retaining furnace. The crude steel may be in the form of small pieces of steel scrap which are charged continuously to furnace 11 or may be charged in liquid form, the powdered refining agent(s) and alloy additions being added by injection into furnace 11 using an inert gas. The steel may be transferred by reducing the pressure in furnace 23 which may be tapped from spout 25 into a continuous casting plant by increasing the pressure in furnace 23 using argon as the pressure medium.
    公开号:SU795517A3
    申请号:SU782665902
    申请日:1978-12-22
    公开日:1981-01-07
    发明作者:Фредрикссон Бенгт；Юггла Ян
    申请人:Асеа Аб (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to metallurgy, in particular, to steel cleaning devices.
    A device for cleaning steel, made in the form of induction channel furnaces connected by an overflow channel, is known. One of the furnaces is designed for smelting steel, and the Other is for holding and distributing and is equipped with a bottling tap, the second one is made reiwetized and connected to the inert gas supply system l.
    However, the known device does not provide a high-quality melt of 15 quality due to the fact that the melting furnace is open.
    The aim of the invention is to improve the quality of the melt.
    This goal is achieved due to the fact that the melting furnace is sealed so that it can be connected. with a vacuum or protective gas system and is equipped with a slag tap; at the same time, the distributing furnace is located at the melting point of 25, and the tapping tap is located in the upper part of the overflow of the PI-O channel.
    The drawing is a diagram of the proposed device .. 3 (1
    Here, a smaller induction furnace 1 is depicted, having at least one inclined located induction device 2 of a single channel or paired type.
    The device 2 is located obliquely in such a way that the greatest depth of the molten metal layer is formed in that part of the furnace that is located adjacent to the furnace to maintain the temperature of the molten metal. The furnace 1 has a gas-tight hermetic sealing cover 3, in which one or several closing inlets 4 are made. In the lower part of the furnace there is a pallet with molten metal filling the channel 5 of the induction device and part of the furnace working space. The furnace is equipped with an exhaust channel b, which is gas-tight and connected to the supply channel of the furnace 7, which maintains the temperature of the molten metal and connected to the furnace 1 by means of the channel 6. The slag floating onto the surface of the molten metal is held back by the slag valve 8.
    The furnace 7 is a channel type furnace and is located at a lower
    权利要求:
    Claims (1)
    [1]
    Claim
    A steel cleaning device containing induction channel furnaces connected by an overflow channel, one of which is smelting, the second is a dispensing tap, and the transfer furnace is sealed and connected to an inert gas supply system, characterized in that, in order to improve the quality of the melt, a melting furnace made tight with the possibility of connecting it to a vacuum system or a protective gas and is equipped with a slag tap, while the transfer furnace is located below the melting furnace, and the bottling tap is located at the top of the overflow channel.
    类似技术:
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    SU795517A3|1981-01-07|Steel cleaning device
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    US4190435A|1980-02-26|Process for the production of ferro alloys
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    US4341553A|1982-07-27|Method of, and cupola furnace for, the introduction of treatment agents into cupola iron melts
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    CN210856207U|2020-06-26|Liquid metal refining device and liquid metal smelting system
    同族专利:
    公开号 | 公开日
    BE810026A|1974-05-16|
    US3948643A|1976-04-06|
    FR2219232A1|1974-09-20|
    JPS5548085B2|1980-12-04|
    IT1011525B|1977-02-10|
    GB1453523A|1976-10-27|
    FR2219232B1|1977-09-16|
    DE2406480A1|1974-08-29|
    BR7401239D0|1974-10-29|
    SE439326B|1985-06-10|
    CA1013151A|1977-07-05|
    JPS49117314A|1974-11-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2648715A|1950-06-06|1953-08-11|Lindberg Eng Co|Furnace for molten metal|
    US2674639A|1952-03-13|1954-04-06|Lindberg Eng Co|Method of and a furnace for induction melting metal|
    US2939899A|1955-11-14|1960-06-07|Lindberg Eng Co|Metal melting furnace|
    US2936329A|1957-09-05|1960-05-10|Portable Electric Tools Inc|Switch mounting|
    US3467167A|1966-09-19|1969-09-16|Kaiser Ind Corp|Process for continuously casting oxidizable metals|
    JPS531727A|1976-06-29|1978-01-10|Mitsubishi Motors Corp|Carburetor|JPS6128913B2|1977-05-26|1986-07-03|Kawasaki Heavy Ind Ltd|
    JPS55133853A|1979-04-09|1980-10-18|Furukawa Kinzoku Kogyo Kk|Tundish for alloy continuous casting|
    JPS5680679A|1979-12-03|1981-07-02|Sanyo Electric Co|Open showcase|
    JPS58119174U|1982-02-05|1983-08-13|
    JPS597867A|1982-07-06|1984-01-17|Hitoshi Karashima|Freezing refrigerating display case|
    JPS59193210A|1983-01-11|1984-11-01|Ko Suteiiru Intern Ltd|Steel manufacture and apparatus|
    DE3763958D1|1986-11-10|1990-08-30|Inductotherm Corp|METHOD FOR CONTINUOUS STEEL PRODUCTION IN A MICRO-STEEL PLANT.|
    US4836273A|1986-11-10|1989-06-06|Inductotherm Corp.|Micro mill continuous steel process|
    JPH0544699Y2|1987-11-19|1993-11-12|
    US5341394A|1992-08-31|1994-08-23|Nicem S.R.L.|Furnace for melting materials with low melting point with improved casting duct|
    JPH06158189A|1992-11-26|1994-06-07|Hitachi Ltd|Method for heating and dissolving metal and device therefor|
    US5583268A|1995-12-15|1996-12-10|The Dow Chemical Company|Method to prepare ortho substituted phenol|
    BE1010710A3|1996-10-24|1998-12-01|Centre Rech Metallurgique|Method of producing steel from sponge iron.|
    IT1288437B1|1996-11-15|1998-09-22|S E Tri Srl|PROCESS AND PLANT FOR THE MELTING AND PURIFICATION OF ALUMINUM, COPPER, BRASS, LEAD AND BRONZE ALLOYS|
    DE102014110251A1|2014-07-21|2016-01-21|Stephan Schwenkel|Melting unit for melting casting materials and a method for producing a melt for casting|
    FR3048902B1|2016-03-18|2018-03-02|Constellium Issoire|ENCLOSURE WITH SEALING DEVICE FOR CASTING INSTALLATION|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE7302555A|SE439326B|1973-02-23|1973-02-23|DEVICE FOR REFINING MOLD STEEL|
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