• 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:
    1495579 Metallurgical units NL INDUSTRIES Inc 29 July 1975 [12 Aug 1974] 31790/75 Addition to 1483613 Heading B3H A metallurgical unit comprises a stack of toroidal metal briquettes as described in Specification 1,483,613, the briquettes being held positioned to have apertures therein in alignment. The briquette (20), Fig. 2 (not shown), is a body of ferrous metal impregnated with magnesium metal and has a central aperture (24). The stack is placed in a container (21) having end closures (22) provided with apertures aligned with the apertures (24) and sealed by covers (23) which also fit into the apertures (24) of the outermost briquettes to hold the stack in alignment. In an alternative form, the briquettes 51 are located on a rod 52 between holding pins 53, the assembly being placed in a container 54. The rod protrudes through a top end closure 55 and ceramic cement 57 seals the opening around the rod. In a further embodiment a rod (42), Fig. 4 (not shown), passes through both ends of a container (41), in which are located briquettes (40), and the container assembly is held on the rod by pins (43). The briquettes may be removed from the container prior to immersion in molten iron or the container, which is of steel, may also be immersed in the melt. 0À65 lb. of Mg. is added to each ton of molten iron and a rapid reaction lasting four minutes follows. After eight minutes the briquettes and rod and the metal container, if present, are also dissolved. The rod is preferably of ceramic coated steel or all ceramic.
    公开号:SU735179A3
    申请号:SU752163127
    申请日:1975-08-08
    公开日:1980-05-15
    发明作者:Исваран Джайрадж
    申请人:Н.Л.Индастриз Инк (Фирма)；
    IPC主号:
    专利说明:

    (54) REAGENT BLOCK
    one
    The present invention relates to the metallurgy of ferrous metals, more specifically to the processing of cast iron with metal briquettes saturated with magnesium.
    Reagent blocks are known, consisting of disks or metal briquettes saturated with magnesium and assembled into a bag.
    However, their use for the treatment of cast iron is difficult, and requires special devices for immersing bricks in the metal.
    The aim of the invention is to simplify the process of processing molten metal reagents and.
    To achieve this goal, the reagent unit is provided with a container with a rod passing along its axis, the reagent unit being installed inside the container and fixed relative to it, passing through the holes along the axis of the disks or briquettes, and with the latch finger inserted into the rod under the disks or briquettes.
    FIG. 1 shows an annular briquette of iron scrap, saturated with metallic magnesium; in fig. 2 is a vertical section of the briquettes inserted into
    . container; in fig. 3 — rod with parts for holding the unit; in fig. 4 is a vertical section of the brikts inserted in the container with the rod; in fig. 5 is a vertical section of another form of the reagent block.
    A metal ring-shaped briquette 1 made of pressed porous scrap saturated with metallic magnesium with a hole 2 in the center is assembled into a briquette bag which is installed 10 in container 3 with end walls 4 having central holes 5 which are closed tightly fitted with lids 6. Holes 2 in ring-shaped briquettes coaxially with holes 5 in the end walls of the container 3. The rod 7 is passed
    15 through the bag and pins 8 to hold the bag on the rod.
    Ring-shaped briquettes 1 are installed in the container 3. The package is mounted on the rod 7 and held onto it by fingers-fixers 8.
    A package of another form (Fig. 5) collects. with ring-shaped briquettes 1 pre-positioned on the rod 7 and held in a certain position with pins 8. Pre-assembled bricks and the rod are installed in container 3 having an upper end wall 9, with the upper end of the rod extending from the upper end wall. The hole through which the rod exits the wall is sealed with ceramic cement 10.
    Briquettes are made from steel scrap or iron shavings by pressing and have a density of from 25 to 50% of the density of the liquid metal. They are pressed into ring-shaped dies. Briquettes are immersed in molten magnesium metal, which saturates the intervals of pressed metal pieces. Then several ring-shaped briquettes are placed one on another and placed in a metal container and a rod is passed through the entire assembly. The node is held on the rod with fingers-clips inserted into the rod under the discs or briquettes. If required, graphite rods can be used. The reagent block is immersed in the cast iron and held below the metal surface. Within the first minute, the container begins to dissolve in the metal and the magnesium reacts with the iron, reducing the sulfur content in the metal. Magnesium is released from the bricks quickly, but not violently. After three or four minutes, most of the magnesium dissolves and after five, six minutes the briquette and the core themselves begin to melt. Such a bag can be raised and lowered from metal, if required.
    The initial sulfur content in the iron was 0.041 ° / o, and after processing with the reagent unit 0.023%. The unit is simple and inexpensive to use.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A reagent block consisting of disks or metal briquettes saturated with magnesium and collected in a bag, characterized in that, in order to simplify the process of treating a metal melt with reagents, it is equipped with a container with a rod passing along its axis, the reagent block being installed inside the container and fixed with respect to it by a rod passing through the holes along the axis of the disks or briquettes, and with a finger-lock inserted into the rod under the disks or briquettes.
    Sources of information taken into account during the examination 1. Vaschenko KI, Sofroni L. Magnesium cast iron. N., Mashgiz, 1960, p. 131 -148.
    ff J
    类似技术:
    公开号 | 公开日 | 专利标题
    SU735179A3|1980-05-15|Reagent block
    Fruehan1988|Gases in metals
    US4238231A|1980-12-09|Apparatus for treatment of molten metal
    US4312668A|1982-01-26|Apparatus for the treatment of molten metal
    AU599345B2|1990-07-19|Treatment vessel for treating molten metal alloys
    US4362562A|1982-12-07|Method for taking samples from pig-iron melts
    CA2039598C|1996-12-10|Vacuum-suction degassing method and an apparatus therefor
    KR890003965A|1989-04-19|Metal Treatment Containers and Methods
    US4511401A|1985-04-16|Process for the treatment of molten metal
    GB972708A|1964-10-14|Improvements relating to the manufacture of cast iron
    JPS56146817A|1981-11-14|Refining method for molten steel in ladle
    SU438697A1|1974-08-05|The method of steel production in the converter
    SU1574667A1|1990-06-30|Inoculation briquettes for synthetic cast iron
    SU602561A1|1978-04-15|Method of decarbonizing steels and alloys
    SU840128A1|1981-06-23|Tank for treatment of melt with reagents
    SU1294832A1|1987-03-07|Method for treating alloys
    SU380716A1|1973-05-15|METHOD OF MELTING STEEL
    SU633900A1|1978-11-25|Method of inoculating iron
    SU1422074A1|1988-09-07|Method of preparing samples-radiators for x-ray fluorescent analysis of metals
    SU539080A1|1976-12-15|The method of processing liquid metal reagents
    SU1320253A1|1987-06-30|Mixture for inoculating grey iron
    RU1801128C|1993-03-07|Method of steelmagnesium block manufacturing
    Galey et al.1980|Treatment of Molten Metal by Agitation With Neutral Purge Gases.|
    SU1661221A1|1991-07-07|Method of producing low-silicon nickel superalloy additives
    SU1742340A1|1992-06-23|Process for producing steel
    同族专利:
    公开号 | 公开日
    AU498589B2|1979-03-15|
    NO752741L|1976-02-13|
    US3902705A|1975-09-02|
    CA1050266A|1979-03-13|
    SE7508898L|1976-02-13|
    NO138951B|1978-09-04|
    GB1495579A|1977-12-21|
    AU8388075A|1977-02-17|
    FR2281989B1|1978-03-17|
    FR2281989A1|1976-03-12|
    JPS5120012A|1976-02-17|
    DE2535795A1|1976-02-26|
    NO138951C|1978-12-13|
    BE832324A|1975-12-01|
    IT1040339B|1979-12-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1175655A|1912-11-22|1916-03-14|Walter N Naylor|Aluminium alloys.|
    US2809886A|1955-02-17|1957-10-15|Int Nickel Co|Plunger for the introduction of substances with low vaporization temperature into liquid melts|JPS5334181B2|1975-04-01|1978-09-19|
    IT1156736B|1978-05-12|1987-02-04|Centro Speriment Metallurg|METHOD FOR THE INTRODUCTION OF BONES-DESULPHANTS SUBSTANCES UNDER FLOATING METALS WITHOUT USING GASEOUS VEHICLES|
    US4500352A|1982-12-01|1985-02-19|Stanton And Staveley Limited|Production of cast iron|
    US6790244B2|2002-08-07|2004-09-14|Nottingham-Spirk Design Associates, Inc.|Packaged stackable charcoal briquet|
    US7575609B2|2002-08-07|2009-08-18|Creative Spark, Llc|Packaged charcoal briquet product|
    US20040222117A1|2002-08-07|2004-11-11|Nottingham-Spirk Design Associates, Inc., An Ohio Corporation|Packaged charcoal briquet product|
    JP6263037B2|2014-02-03|2018-01-17|三鷹光器株式会社|Briquette for thermal reduction of magnesium|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US49664874|US3902705A|1974-08-12|1974-08-12|Metallurgical device for treating molten metal|
    [返回顶部]