• 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:

    公开号:SU1487818A3
    申请号:SU853964398
    申请日:1985-10-17
    公开日:1989-06-15
    发明作者:Paul Khene
    申请人:Ipsen；
    IPC主号:
    专利说明:

    The invention relates to methods for processing metal workpieces in a continuous furnace or a methodical furnace with end discharge of material and can be used to carry out two-stage carburization of billets in a protective gas medium. The purpose of the invention is the expansion of technological possibilities. The invention relates to methods for processing metal blanks using a continuous furnace or a methodical furnace with end material dispensing and at least two working chambers with loading windows, designed to pass several batches of billets one after the other. separate batches of blanks periodi2
    tey According to the proposed method, heat treatment of metal blanks is carried out in a continuous furnace or a pusher furnace with two at least heat treatment chambers with working windows for corresponding heat treatment of several batches of blanks, each batch with a given tempo being received by a corresponding heat treatment chamber with subsequent unloading, the device for implementing the method contains heating chamber in the form of a method furnace, carburizing chamber in the BSE ring-shaped clock furnace, diffusion chamber in the form of a ring clock furnace, an alignment chamber in the form of a method furnace and a quenching chamber, interconnected by intermediate windows and vehicles. The invention provides, in one heat treatment chamber, individual processing of each batch of blanks depending on the type of batch and processing parameters at a different residence time for each individual batch of blanks. and 3 z. p. f-ly, 1 ill.
    00
    m
    00
    00
    They are accepted by the current working chamber, and can be used for carrying out two-stage carburization of metal blanks in protective gas with the furnace divided into several working chambers with different temperatures and / or atmospheres.
    The purpose of the invention is the expansion of technological capabilities.
    >
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    The drawing shows a device for the heat treatment of metal blanks.
    The device contains a heating chamber 1 in the form of a method furnace, a carburizing chamber 2 in the form of a ring clock furnace, a diffusion chamber 3 in the form of a ring clock furnace alignment chamber 4 in the form of a method furnace, and a quenching chamber 5. The chambers form a continuous operation device for two-stage carburization of the blanks in a protective atmosphere.
    The blanks are placed on pallets 6 either on the shelves or in boxes and fed into the furnace through the purge vestige 7 with a loading window 8. The purge vestibule is part of the heating chamber and is sealed from the surrounding atmosphere. The vestibule is purged with the intermediate 9 window of the heating chamber closed.
    The blanks are loaded using the pusher cylinder 10 with the intermediate window 9 open. Lots of blanks are transported through the preheating chamber in a neutral atmosphere relative to the carburization and are heated to a carburizing temperature of 830–900 ° C. Electric heating and separation into two heating zones (not shown) are provided in the preheating chamber; Endogas and air are used as protective gas. The discharge device is designed as a discharge circuit 11. The heating chamber 1 communicates with the carburizing chamber 2 through an intermediate window 12. The carburizing chamber is made in the form of an annular clock furnace with a movable hearth 13, which can selectively move in both directions and has eighteen places for blanks .
    Moving the hearth is carried out by a calculating device, depending on the batch of workpieces and the duration of processing, uniformly or unevenly in one or the opposite direction. To carry out the carburizing process in the presence of a high carbon potential, in the chamber 2 of the carburizing, the workpieces are heated to 900 ^ 0 with the help of heating elements. Endogas is used as a protective gas.
    with the addition of gas. Io after a certain time, the workpieces are transmitted through the intermediate window 14 to the diffusion chamber 3 by means of an unloading device in the form of an injection circuit 15. The diffusion chamber 3 is also designed as an annular furnace, but smaller than the carburizing chamber 2. The diffusion chamber has six places for batches of blanks. The temperature in the chamber is 900 in C, and endogas is used as a protective gas with the addition of a gas-air mixture. The duration of the diffusion process is individual and is controlled by a computing device. The heated billets are transported by turning the hearth to the left or right through the intermediate window 16 into the leveling chamber 4 using a chain 17. The leveling chamber is made in the form of a method furnace with electric heaters (not shown); heating temperature of the chamber is 850 ° C. Endogas with the addition of a gas-air mixture is used as a protective atmosphere. In the alignment chamber 4, the batch of blanks is heated to the quenching temperature. To move through the furnace, a pushing cylinder 18 is used. After the temperature has been reduced and the batch temperature of the batch has been equalized to the quenching temperature, they are delivered to the dispensing position. Unloading is carried out either with the help of a chain transfer 19 and a platform into the quenching chamber 5, or separate separation is carried out through the non-faced window 20.
    In the proposed device, it is possible to simultaneously process batches of workpieces with different cementation depth with a two-step carburizing process and full device productivity.
    The use of a furnace for the simultaneous processing of workpieces with different sizes, shapes and in different quantities allows you to expand the technological capabilities of the device.
    When heat treating metal workpieces using a continuous-action device or a pusher-type furnace with at least two heat treatment chambers ι. with working windows for appropriate heat treatment of several batches of blanks, separate batches 5
    1487818
    A wok with a given tact is received by the corresponding heat treatment chamber, transported in it with the implementation of heat treatment, and then unloaded at a given rate.
    权利要求:
    Claims (1)
    [1]
    Claim
    1. The method of heat treatment of metal blanks in a furnace, mainly continuous
    or pushing reheating furnace with the end vschachey and at least two chambers with the working window 15 for the passage of blanks comprising in separate batches moving workpieces through the chambers to each other with a certain clock cycle, a heat treatment in their respective x and chamber 20 Booting You are a product, characterized i the fact that, in order to expand technological capabilities, in at least one of the chambers, during heat treatment, a batch of blanks is displaced with an uneven given tact and, accordingly, unload the goods At various intervals.
    2. A device for thermal processing of metal blanks in
    furnaces mainly for two-stage carburization in the gas atmosphere, containing several heat treatment chambers with different temperatures and / or atmospheres
    one window for loading and unloading blanks, characterized in that, in order to expand technological capabilities, heat treatment chambers are made in the form of ring hearth furnaces that can be reversibly moved with a given uniform and uneven tact, while the furnaces communicate with each other through an intermediate working window .
    3. The device according to p. 2, characterized in that the working windows of the heat treatment chambers are deployed relative to each other by at least 45 °.
    4. The device according to claim 2, of t l ich and y. It is equipped with additional heat treatment chambers, made in the form of annular furnaces, having hearths with a given tact of movement and planetaryly located in relation to the first and / or second chamber.
    5. Device pop. 2, characterized in that it is provided with one pushing methodical furnace located at the loading and unloading sites for heating workpieces at the loading site and for equalizing the temperature of the workpieces at the unloading site, and a quenching chamber adjacent to the furnace for leveling the temperature of the workpiece.
    14.87818
    eleven g; - ™ 1 WITH about t
    X '
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1487818A3|1989-06-15|Method and apparatus for heat treatment of metal billets in furnace
    EP0811697B1|2002-07-17|Method and apparatus for carburizing, quenching and tempering
    US5722825A|1998-03-03|Device for heat-treating metallic work pieces in a vacuum
    US5997286A|1999-12-07|Thermal treating apparatus and process
    CA2955279C|2021-10-19|Method for heating steel sheets and device for carrying out the method
    JPH0798973B2|1995-10-25|Rotary hearth type multi-chamber multi-purpose furnace system
    US4622006A|1986-11-11|Method and apparatus for heat treating metallic workpieces using a continuous-heating furnace or gravity-discharge furnace
    US3662996A|1972-05-16|Multi-chamber carburizing apparatus
    US3598381A|1971-08-10|Continuous carburizing furnace
    GB2162294A|1986-01-29|Annular rotary hearth furnace for heat-treating workpieces
    US3447788A|1969-06-03|Heat treating method and apparatus
    JPH11181516A|1999-07-06|Atmospheric heat treatment and atmospheric heat treatment furnace
    US4628615A|1986-12-16|Process and installation for the heat treatment of cylindrical bodies, especially pipes
    JP3547700B2|2004-07-28|Continuous vacuum carburizing furnace
    JP2742074B2|1998-04-22|Carburizing furnace
    US5868564A|1999-02-09|Sequential step belt furnace with individual concentric heating elements
    US653819A|1900-07-17|Muffle furnace or oven.
    SU1651065A1|1991-05-23|Tunnel electric furnace for heat treatment of ceramic articles
    US3016314A|1962-01-09|Heat-treating metals
    US1745362A|1930-02-04|Art of annealing
    KR100195971B1|1999-06-15|A vertically moving type continuous furnace
    SU1640501A1|1991-04-07|Method of loading long-length articles
    GB2210681A|1989-06-14|Continuous kiln
    SU759233A1|1980-08-30|Furnace for heat treating of ferrite articles
    RU1770383C|1992-10-23|Method of article hardening
    同族专利:
    公开号 | 公开日
    CN1014078B|1991-09-25|
    JPH0116307B2|1989-03-23|
    CN85107934A|1986-07-09|
    CN85204461U|1987-06-03|
    AT392653B|1991-05-27|
    DE3441338A1|1986-05-15|
    DE3441338C2|1988-04-14|
    JPS61119665A|1986-06-06|
    ATA270185A|1990-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU209172U1|2020-09-15|2022-02-04|Акционерное общество "Энергия" |NICKEL TAPE CARBURIZER|US1783156A|1928-05-11|1930-11-25|George J Hagan Company|Heat-treating apparatus|
    US2013905A|1933-02-04|1935-09-10|Jr James L Adams|Circular ingot heating furnace|
    FR1252645A|1959-11-23|1961-02-03|Vallourec|Installation for heating metals by direct flame at high temperature without oxidation|
    US3598381A|1969-02-26|1971-08-10|Holcroft & Co|Continuous carburizing furnace|
    US3998703A|1975-02-06|1976-12-21|Salem Corporation|Method of treating materials on a rotary hearth|
    US4412813A|1982-02-02|1983-11-01|Alco Standard Corporation|Rotary hearth furnace and method of loading and unloading the furnace|
    DE3435376C2|1984-09-27|1996-09-12|Loi Ipsen Holding Gmbh|Process for heat treatment of workpieces|
    SE450389B|1984-10-02|1987-06-22|Volvo Ab|METHOD AND PLANT FOR HEAT TREATMENT OF DETAILS WITH VARIOUS REQUIREMENTS FOR HEAT TREATMENT TIME|JPS63145854U|1986-11-25|1988-09-27|
    DE3640325C1|1986-11-26|1988-02-04|Ipsen Ind Internat Gmbh|Device for the heat treatment of metallic workpieces in a carbonizing atmosphere|
    US4763880A|1987-04-03|1988-08-16|Holcroft/Loftus Inc.|Rotary hearth multi-chamber, multi-purpose furnace system|
    DE3726802A1|1987-08-12|1989-02-23|Aichelin Gmbh|Method of heat treatment of metal workpieces as well as device for implementing the method|
    DE4303686C2|1992-10-07|1995-11-30|Iob Ind Ofen Bau Gmbh|Furnace plant and method for the heat treatment of metallic workpieces|
    DE19514289B4|1995-04-24|2006-09-21|Loi Thermprocess Gmbh|Furnace plant for heat treatment of workpieces|
    DE19737508C1|1997-08-28|1999-01-21|Brenntechnik Gruen Gmbh|Furnace for heating ceramics|
    DE19952397A1|1999-10-29|2001-05-03|Loi Thermprocess Gmbh|Rotary hearth furnace for the heat treatment of workpieces|
    DE10256621B3|2002-12-03|2004-04-15|Benteler Automobiltechnik Gmbh|Continuous furnace used in the production of vehicle components, e.g. B-columns, comprises two zones lying opposite each other and separated from each other by a thermal insulating separating wall|
    DE102005033042B3|2005-07-15|2006-07-27|Audi Ag|Preheating of e.g. sheet for hot-pressing in automobile industry, employs heat released by cooling- and deformation processes, to preheat workpieces before forming|
    CN102191451B|2011-04-19|2013-06-19|哈尔滨意锋稀土材料开发有限公司|Double-hearth continuous rare earth carburizing equipment and process thereof|
    SE535815C2|2011-05-24|2013-01-02|Automation Press And Tooling A P & T Ab|Method and apparatus for reducing the heat loss of a heated workpiece|
    CN102312187B|2011-09-28|2012-11-07|黄山学院|Complete equipment for strengthening treatment of cutter surface|
    CN110699633A|2019-11-27|2020-01-17|特诺恩技术（天津）有限公司|Charging and discharging method of annular rotary-bottom type gas carburizing furnace for gear carburizing heat treatment|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19843441338|DE3441338C2|1984-11-13|1984-11-13|
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