• 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:
    The invention relates to devices for the thermal spraying of filler materials for surfacing and can be used in mechanical engineering and other industries. The goal is to expand the technological capabilities of the device by using a variety of gaseous combustible components. For this purpose, the combustion chamber is equipped with an igniting device, made in the form of a igniting electrode with an electrical switching element. The nozzle for supplying combustible gases and filler material is mounted for axial movement in the direction of the axis of the combustion chamber. The ignition electrode is mounted for movement perpendicular to the axis of the combustion chamber. In addition, the device is equipped with a magnetic coil, and the igniting electrode is made in the form of a core of a magnetic coil and is equipped with a return spring. The jet focusing nozzle (SPS) is made with longitudinal holes for gas supply. SPS is equipped with a nozzle pipe installed with the possibility of replacement. In addition, SPS is made of composite, formed from several parts. SPS can be provided with a shaped body made of a porous gas-permeable material, with the formation of a cavity between the inner wall of the SPS and a shaped body for supplying compressed gas. The cavity between the internal wall of the SPS and the shaped body is made with a decreasing flow section towards the SPS output section. 6 hp f-ly, 8 ill.
    公开号:SU1493095A3
    申请号:SU853896602
    申请日:1985-04-30
    公开日:1989-07-07
    发明作者:Эксле Манфред；Щиесло Уве；Штреб Карл-Петер；Зим Вольфганг
    申请人:Кастолин С.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to devices for the thermal spraying of filler materials for surfacing and can be used in the machine, structure and other industries.
    The purpose of the invention is the expansion of the technological capabilities of the device.
    by using various gaseous hot components.
    FIG. 1 shows the device,. made as a pistol combination. years for gas metallization - nozzle, jet focusing, cut} in fig. 2 - the same, in the form of a combination nozzle holder - focusing nozzle

    cm
    jets, section, fig. 3 shows a special embodiment of the jet focusing nozzle {fig. 4 shows a further specific embodiment of the jet focusing nozzle for forming a flow on the lateral surface; in fig. 5 shows a preferred embodiment of the electrode; in fig. 6 is a circuit diagram for the device} in FIG. 7 - functional diagram; Fig. 8 shows a part of the device in an improved embodiment, section.
    The device comprises a jet focusing nozzle 1, a combustion chamber 2, an adapter 3. In the combustion chamber 2 made with a transitional circuit 4, an axially displaceable nozzle 5 is placed for supplying combustible gases and filler material of the gun 6 for gas metallization. The ignition device is made in the form of an electrode 7 installed in the combustion chamber 2 with the possibility of movement {relative to the vertical axis. Pisto 6 years contains the regulator 8 for the supply of combustible gas and the regulator 9 for supplying oxygen or compressed air.
    The electrode 7 is connected to the element 10 of the ignition device and is the core of the magnetic coil 11, which, when excited, promotes the movement of the end of the electrode into the cavity of the combustion chamber 2, overcoming the action of the return spring 12. The ignition current is turned on using the switch 13.
    The adapter 3 and the jet focusing nozzle 1 are made water-cooled, and the cooling channels 14 and 15 are connected by channel 16. A branch pipe 17 is provided to feed the cooler to the channels 14 and 15. A common pipe 18 is connected to the cooler to remove it, connected to the channels 14 and 15.
    The nozzle 1 for focusing the line can be formed from separate parts 19 connected to each other, which are connected through a heat transfer medium (cooler) by means of connecting pipes 20.
    In order to form a peripheral gas flow inside the jet focusing nozzle 1, one or several gas subsurface orifices 21 are provided at the end on the adapter side (Fig. 4).
    The channel 22 of the jet focusing nozzle 1 may be made conically expanding to the outlet
    23 (FIG. 8). The wall of the channel 22 can be made as a shaped body 24 of a porous gas-permeable material, which is surrounded by a cavity 25 filled with compressed gas, which is supplied through the channel 26 of the compressed gas supply. In this case, it is preferable that the cavity 25 is made with a decreasing cross section in order to ensure as uniform a distribution of the compressed gas through the porous material of the molded body 24 over the entire length. Shaped body
    24can be made, for example.
    of sintered ,,
    ZnO 3 or from them


    mixes.
    The holes 21 can be directly placed in the transition circuit 4 (Fig. 8). Combustion gas can be supplied through the channel 26, which contributes to the additional acceleration of the entire flow in the channel 22 of the jet focusing nozzle 1.
    Instead of a JL-6, the holder 6 of the nozzle 5 can be used (Fig. 2). Both the powder and the wire can be used as the material for metallization. In this case, the holder 6 of the nozzle 5 must be equipped with a reservoir for powder or a pipeline for supplying powder.
     The gun 6 (or holder) of the nozzle 5 is provided with a marking or an installed stop in order to ensure that the nozzle 5 is placed at the optimum distance from the electrode 7. The jet nozzle 1 can be equipped with a nozzle pipe 27, which is installed for replacement.
    In order to reliably turn on and ensure the operability of the entire device, the regulator 8 for supplying combustible gas and regulator 9 for supplying acid or compressed air of the pistol 6 for gas metallization, as well as the element 10 for switching on the ignition device, are connected to each other and are located Thus, the flushing of the jet focusing channel 22 with oxygen or compressed air, switching on the ignition device and the entry of combustible gas are carried out one after the other. For this purpose, the intended 5
    control and regulation elements.
    In the electrical circuit (Fig. 6), only the large positions 5, 7, 8, 9, 10, 11, 13, and X, Y are directly related to the corresponding positions in Figs. 1-5. The device itself from this scheme owns only elements 5, 7, 8, 9, 11, i.e. those elements that are under the dash-dotted line on the right side of the electrical circuit.
    The device works as follows.
    Using regulators 8 and 9 through the nozzle 5, the combustion chamber 2 is filled with a mixture of combustible gas with an oxidizing agent. When electric current flows through the coils of coil 11, the electrode 7, which is the core of coil 11, overcomes the resistance of the return spring 12 and moves into the combustion chamber 2. In this position, the limit switch 13 turns on the ignition current. After the ignition is carried out, the current flowing through the coil 11 is disconnected, and the electrode 7 is returned by the return spring 12 from the chamber 2 to the initial position. For the ignition process, it is essential that it take place immediately at the beginning of the gas mixture entering the combustion chamber 2.
    Essential to the device is the placement in the combustion chamber 2 of the nozzle 5 being moved in the axial direction. The size of the combustion chamber 2 is thus variable. Gases that have burned out in the combustion chamber 2 enter with acceleration into the jet focusing channel 22. Since the powder particles also first enter the combustion chamber, there they begin to melt and enter this state in the jet focusing channel 22. In addition, the position of the retractable ignition electrode 7 in the combustion chamber 2 is essential in order to ensure that only a relatively small amount of the mixture of combustible gas in the combustion chamber 2 is ignited during device commissioning, after which the electrode 7 is removed from the ignition chamber 2.
    By means of relays K, K, Kj, K with delayed attraction or delayed release and the corresponding circuit elements in the device
    93095
    the necessary progress of work is provided (Fig. 7), and Sz denotes directly the phase of the work. The curves presented have only qualitative significance. For example, the ignition curve shows that the ignition current flows only in the time interval tj, in which the flammable gas only begins to flow. The electrode curve indicates that immediately after the time interval tj the electrode is taken out. In the time interval c, i. after control at S, the gas supply is stopped, and the oxygen supply may continue for some time for the purpose of purging.
    权利要求:
    Claims (7)
    [1]
    1. A device for the thermal melting of filler materials for surfacing, containing a system for supplying combustible gases and an additive material, a nozzle for supplying combustible gases and an additive material, a combustion chamber, a jet focusing nozzle, characterized in that, with the aim of expanding by using a variety of combustible gaseous components, the combustion chamber is equipped with an igniting device made in the form of an electric ignition electrode
    including a nozzle, a nozzle for supplying combustible gases and an additive material is installed with the possibility of axial movement in the direction of the axis of the combustion chamber, and the igniting
    The electrode is mounted for movement perpendicular to the axis of the combustion chamber.
    [2]
    2. The device under item 1, about t of l and-. Of course, it is equipped with a magnetic coil, and the ignition electrode is made in the form of a core of a magnetic coil and is equipped with a return spring.,
    [3]
    3. The device according to claim 1, about tl and - that the nozzle of focusing the jet is made with longitudinal holes for the supply of gas.
    [4]
    4. The device according to claim 1, which is based on the fact that the jet focusing nozzle is equipped with a nozzle tube, which is installed with the possibility of replacement.
    [5]
    5. The device according to claim 1, which is based on the fact that
    The jet is made in a composite, formed from several parts.
    [6]
    6. The device according to claim 1, characterized in that the focusing nozzle of the jet is provided with a shaped body made of a porous gas-permeable material, with the formation of a cavity between the inner wall
    4930958
    jet focusing nozzles and a shaped body for supplying compressed gas.
    [7]
    7. The device according to claim 6, wherein the cavity between the inner wall of the jet focusing nozzle and the shaped body is made with a decreasing inlet cross section towards the outlet section of the jet focusing nozzle.
    About 9
    Fig.Z
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    7 / "lL" iS "ii-
    (h, | p5
    J
    Y /////// ////// ..
    Fi9.5
    /
    J
     . t,
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    15
    Srig.
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    同族专利:
    公开号 | 公开日
    JPS60502243A|1985-12-26|
    AU3315584A|1985-03-29|
    MX163708B|1992-06-15|
    EP0135826B1|1986-12-30|
    US4711627A|1987-12-08|
    DE3331216A1|1985-03-14|
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    US5019686A|1988-09-20|1991-05-28|Alloy Metals, Inc.|High-velocity flame spray apparatus and method of forming materials|
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    DE3903887C2|1989-02-10|1998-07-16|Castolin Sa|Device for flame spraying powdery materials by means of an autogenous flame|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19833331216|DE3331216A1|1983-08-30|1983-08-30|DEVICE FOR THERMAL SPRAYING OF FOLDING WELDING MATERIALS|
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