• 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:
    This is a method for coating the inside of a pipe with a wear-resistant material and is more specifically concerned with an improved production method for producing large size pipe.
    公开号:SU776546A3
    申请号:SU782630254
    申请日:1978-06-23
    公开日:1980-10-30
    发明作者:Л. Роедер Чарльз；Джеймс Сиферт Вильям；Тейджсмейджер Фредерик
    申请人:Рекснорд Инк. (Фирма)；
    IPC主号:
    专利说明:

    rial through the annular chamber, covering the airflow.
    The air flow of the material, directed perpendicularly to the inner surface of the pipe, is twisted before mixing with the matrix material. The matrix material is introduced into the air flow of the reinforcing material at an acute angle to its axis to meet the movement of the air flow. Wear-resistant particles are introduced into the matrix material.
    In addition, the goal is achieved by the fact that, in a device comprising means for keeping the pipe being covered in a horizontal position, a probe with means of releasing the reinforcing material and the Matrix Material and means for creating a relative axial movement of the pipe and the probe and rotating the pipe to be coated, the probe equipped with a mixing chamber mounted at its outlet end associated with means for supplying reinforcing material and matrix material, wherein means for supplying reinforcing material you Completed in the form of a tube connected to a source of compressed air.
    The means for feeding the matrix material is made up of two separate tubes for transporting the smog and hardener. The probe is equipped with an additional chamber for displacing the resin and the hardener located in front of the mixing chamber in the direction of feeding the matrix material.
    The mixing chamber is provided with a means of swirling the air flow with a reinforcing material and an annular chamber enclosing the air flow with a series of holes along the internal contour. The mixing chamber is detachably connected to the probe body. The device has a preparatory probe, a tool for its axial movement, coaxially mounted with the probe by means for supporting the pipe, and means for rotating the pipe when preparing its surface for coating.
    The preparatory probe is equipped with a grinding brush fixed at its end and a mechanism for its rotation and is made with a longitudinal vacuum channel: scrap 7 input (this one is located in front of the grinding brush, and the channel is connected to a vacuum source. The preparatory probe has a preparative liquid applied at its end and a tube for its supply, mounted along the probe.
    The mechanism of rotation of the grinding brush is made in the form of a shaft connected to the motor and mounted in bearings inside the vacuum channel.
    The preparatory probe is equipped with shielding plates located above the inlet of the vacuum channel and a grinding brush;
    The device houses a frame with reservoirs for reinforcing material and matrix material mounted on it, and at least one movable support for each of the probes mounted on the rails, means for moving the movable support at a speed less than the speed of the probe, and
    holding the pipe in a horizontal position and c) it is mounted on.
    FIG. 1 given the device, a general view, schematically; in fig. 2 the same
    5 top view; in fig. 3 - the same, side view; in fig. 4 shows section A-A in FIG. H; in fig. 5 is a side view of the device shown in FIG. 4} in FIG. b - section bb in fig. 4 on
    0 fig. 7 is a view along arrow B in FIG. 4 in FIG. 8 - probes, top view / in FIG. 9 - probes, side view; FIG. 10 shows the axial movement of the probes on an enlarged scale, top view; FIG. 11 is a view of YY of FIG. 8 (probe movement mechanism); in fig. 12 - output end of the preparatory probe with the support element; in fig. 13 - preparatory probe, end view; in fig. 14 - day off
    0, the enlarged end of the probe in FIG. 15 is a section d-d in FIG. 14, in FIG. 16.- mechanism for axial movement of probes, side view; in fig. 17 section EE of FIG. 16, in FIG. 18 5 node 1 in FIG. 9 on an enlarged scale} in FIG. 19 is a view along arrow G in FIG. 18, in FIG. 20 is a section through an AND in FIG. 19, in FIG. 21 - node P of FIG. 20 on an enlarged scale; on
    0 fig. 22 is a view along arrow K in FIG. 21 / in FIG. 23 is a view along arrow L of FIG. 21; in fig. 24 shows the mixing chamber on an enlarged scale; FIG. 25 is a section M-M in FIG. 24 in FIG. 26 is a section HH in FIG. 24, in FIG. 27 —the annular chamber in FIG. 24, top view. The device comprises a preparatory station 1, a station 2 of the coating, a preparatory probe 3 and a probe 4 of the coating, a control panel 5 of the control. The probes are installed with the possibility of reciprocating axial movement. In addition, the device contains additional stations 6 and 7, in which 55 the coating is cured.
    Stations b and 7 can perform the functions of a preparatory station and a coating station. Each of the stations includes a number of supports 8-11.
    One of these supports is shown in detail in FIG. 4, 5 and 6. The support includes a base 12, pillars 13 of the corners, fastened with strips 14, guides 5 15 with screws 16, along which roller bearings 17 and 18 move with protrusions 19. At the ends of the screws 16 are fixed gears 20 in engagement with gear 21, seated on rod 22 with handle 123, passing through all supports (see figures 2 and 3). Roller bearing. 18 is driven and connected through chain 24 to drive shaft 25 connected to electric motor 26 (FIG. 3) through chain 27. Chain 24 is in the tension state due to movable idle pulley 28 at any position of the roller bearing 18. In the support 8 there is a flange roller. 2 9 for holding the tube during the removal of the probe. Some of the supports have grips 30 for holding the pipe during preparatory operations or coating. Rails 31 are laid under each probe, on which a fixed support 32 is installed under the right end of the zone and at least one intermediate to the movable support 33 on the wheels 34. On the left end of the probe, there is a frame 35 on the wheels 36. On the fixed and movable supports 32, 33 are located at the upper end of the rollers 37 with grooves under the probe. An electric motor 38 is placed on the fixed support 32, which drives the drive wheel 39 mounted in the lower part of the support 32, on the movable support 33 — two wheels 40, 41 located one above the other in its lower part. To the left of the wheels 40, 41, a plate 42 is attached to the floor, on which a wheel 43 is mounted, Chain 44 is fixed at one end to support 32, bends around the top wheel 40, wheel 39 and Koiieco 43. At the other end, chain 44 is fixed to frame 35 at a (fig. 10). The second chain 45 is fixed at one end on the frame 35 at point b, bending the lower wheel 41 onto the movable support and fastening the other end to the plastic 42. To tension the chains, the wheel 43 is moved left or right using an adjustment mechanism .46. The preparatory probe is shown in detail in FIG. 11-17. The preparatory probe is made of a pipe 47, on the right end of which a polished iron head is attached. The scraper head includes plastzans 48 and 49, interconnected by shielding with arcuate plates 50 and 51, fastened with bolts 52. On plate 48, a support plate 54 is attached with bolts 53, on which rods 55 are mounted with rods 56 freely mounted on them. At the exit end of the tube 47, a vacuum tube 57 and the sleeve 58 enveloping it are installed. The tube 57 passes through the plates 48 and 54 and has an inlet HBA hole 59. On the tube 57 of the tube 57, the plates 48 and 49 are equipped with sanding brushes 60 (or polishing wheels). ), connect with a drive shaft 61, which passes through the entire tube 47. The shaft 61 holds horizontally in the pipe 47 by sleeves 62 with radial ribs 63. The sleeves 62 are held in place by means of sleeves 64 located on both sides of the sleeve and fixed to the shaft 61 using for example a screw. Between the drive shaft 61 and. sleeve 62 is placed sleeve 65 of nylon or other similar material. To prevent the rotates of the sleeves 62, locking screws 66 are provided. The drive shaft 61 may be made of separate sections. Pipe 47 may have one or more co. 67 (FIG. 11) under the probe for the probe. The rear end of the pipe 47 is fixed on the frame 35 by means of clamps 68 and 69. On the frame 35 an electric motor 70 is mounted, connected via chains 71 to the shaft 61. In addition, a vacuum filter 72 mounted on the frame is connected to a coarse 73 pipe. 47, two tension coils 74 and 75 for electrical conductors that move through the elements 76 and 77, a preparation liquid reservoir 78, which is supplied through a tube 79, having a valve 80 at the tube 79 attached to the pipe 47. The device also contains a frame 81 mounted on rails 31. Mounted on frame a fan 82 connected by a belt 83 s, an electric motor 84 .. A socket 85 of the fan 82 is connected to an air tube 86, which is included in the coating electrode, made s like a tube 87, attached to the frame with pin chumens 88. Besides Moreover, on frame 81, reservoirs 89, 90, 91 are mounted for wear-resistant particles of three different sizes. In the lower part of the tanks 89, 30, 91, valves 92, 93, 94 (Fig. 20) are installed, through which wear-resistant parts enter the air pipe 86. The mechanism for controlling the operation of the valves contains a gear wheel 95, which is in vravdenie chain 96, the scope of the wheels drive wheel 97, which is connected to the electric motor "98" through the gearbox 99. In addition, on the frame, tanks 100 to 101 for sm and hardener, pumps 102, 103, electric motors 104 and 105 that drive the pumps through valuable gears 106 and 107. Resin and hardener on steps from pesepayapciB 100 and 101 through nozzles 108 and 109, pumps 102 and 103 and discharge pipes 110 and 111 into pipes 112, in which manual control valves 113 114 are installed.
    The manual control valve will turn on the body 115 {FIG. 21, 22), the adjusting rod 116 with the head 117, which passes through it the tube 112, the rotary knob 118, with the stopper 119 adjacent to the housing 115, which has a groove 120 under the stoor 119.
    One end of the rod 116 passes through the handle 118 and a spring 121 is mounted on it. The handle has the ability to move in the axial direction.
    The outlet ends of the tubes 112 are connected to the chamber 122 for displacing the resin and the hardener (Fig. 25). Air A tube 86 and a tube TG2 for feeding resin and a hardener pass inside the tube 87 of the probe [see fig. nineteen). The tubes 112 are located under the tube 86. At the exit end of the probe, the edges are closed, and the mixing chamber 123, into which wear-resistant particles and a mixture of resin and hardener (matrix) enter. The resin and hardener displacement chamber 122 has a mixing tube 124 through which the mixture of resin and hardener enters the annular chamber 125 with a number of openings 126 along an internal contour directed towards the air flow.
    At the entrance to the mixing chamber 123, an inclined partition 127 is installed, which allows the air flow to swirl in chamber 123. Air tube 86 and tube 124 are detachably connected (on a sliding fit) to the body of the mixing chamber 123 for quick replacement of chamber 123 and its cleaning.
    The operation of the device is as follows.
    A pipe made of fiberglass, plastic, steel or other material is fed to preparatory station 1 for treating the inner surface of the pipe before coating. The motor 38 is turned on, which causes the wheel 39 to rotate, and through the circuit 44, the rotation is transmitted to the wheels 43-41. In this case, the frame 35 on wheels will move along the rails 31. The preparatory probe will enter the treated tube. :
    The intermediate movable support 33 will move in the direction of movement of the paiviH 35 at a speed of half that, as a result, it will approach the fixed support 32 while the probe completely enters the tube. When the probe moves back, the processed pipe is rotated. At the same time, motor 70 is turned, which rotates shaft 61 in the opposite direction to pipe 113; tube and wire brushes 60 attached to it are turned, which polish the inner surface of the processed pipe, which are formed at this time, are removed along tube 57 , through the holes 59 connected to a vacuum filter.
    To enhance the adhesion between the matrix and the inner surface of the pipe being processed, a preparative fluid is applied to it, which is fed through the tube 79. After processing, the pipe is directed to the coating station 2, the surface is inserted into it, and as it is removed from the pipe, the surface, at the same time the pipe is rotated. The wear-resistant particles in the form of chips or balls are transported through the tube 87 by an air stream, which changes its direction by 9 ° in the mixing chamber 123 and is twisted. At the same time, wear-resistant particles are located at the periphery of the air flow. The resin and hardener are supplied by pumps 102 and 103 through tubes 112 to the displacement chamber 122 and further to the annular chamber 125, from where through the openings 126 individual flows of the matrix are directed inside the air. 5 Pyro flow is broken into separate drops, thus forming a wear-resistant particle and a droplet matrix. , which leads to full moisture of the wear-resistant particles of the matrix. The rate of wear-resistant particles is reduced and they are directed perpendicularly to the treated surface of the pipe. Inject the pipe until the coating is completely cured. The matrix material may include a polymer, for example an epoxy, or an unsaturated polyester {carboxylate-glycol adduct), or a polyurethane or epoxy resin, etc. Polyepoxides having an epoxy equivalent between 140-525 {preferably between 170-290) are preferred.
    Polyepoxies having an average molecular weight below 1200 {namely, between 280-900) are preferred. The ratio of molecular weight to epoxy equivalent is 1.5-3.0.
    Suitable polyepoxides are POLYEPOXIDES derived from epihalohydrin and a polyhydroxyl compound. The preferred polyepoxide is a polyepoxide obtained by the reaction of epihalohydrin, for example epichlorohydrin with diphenylol-i propane {bisphenol A), which has an epoxy exivalent between 175-210, an average molecular weight between 350-400 and OH-equivalent about 1250. In the matrix material can Life is included mixotropic agent, such as asbestos. As a hardener in the material of the material using known agents.
    Wear resistant particles are used in three different sizes. As the largest particles can
    use ceramic balls with a metallic coating with a diameter of the order of 1.7 mm.
    Balls with a high content of alumina without a metallic coating can be used.
    In addition, as wear-resistant particles, you can use
    shavings.
    A new method of applying wear-resistant coatings, the described device can be used to process large-sized pipes with Amy length of 10-61 cm. The device is reliable in operation and has high performance.
    权利要求:
    Claims (19)
    [1]
    1. A method of coating the inner surface of a pipe with wear-resistant material, including the matrix material and the reinforcing material, by separately feeding them through the probe and applying it to the inner surface of the pipe with respect to moving it and the probe, characterized in that, to simplify the process, the reinforcing material is used in the form of wear-resistant particles, which are transported through the probe by an air stream and mixed with the matrix material before being applied to the pipe.
    [2]
    2. A method according to claim 1, characterized in that resin and hardener are used as the matrix material, which are separately fed through the probe and mixed together before mixing with the air flow of the reinforcing material.
    [3]
    3. Method .1 and 2, about tl, and the fact that at the exit from the probe the air flow of the reinforced material is directed downward perpendicular to the inner surface of the pipe to be coated.
    [4]
    4. Method according to paragraphs. 1-3, cf. and in that the matrix material is fed into the air stream of the reinforcing material through an annular chamber surrounding said air stream.
    [5]
    5. Method according to paragraphs. 1-4, characterized in that the air flow of the reinforcing material, directed perpendicular to the inner surface of the pipe, is twisted before being mixed with the matrix material.
    [6]
    6. Method according to paragraphs. 1-5, characterized in that the matrix material is introduced into the air stream of the reinforcing material in the form of droplets,
    [7]
    7. Method according to paragraphs. 1-6, characterized in that the matrix material is introduced into the air flow of the reinforcing material at an acute angle to its axis in opposition to the movement of the air flow.
    [8]
    8. Method according to paragraphs. 1-7, 6 tl and h with the fact that in the material
    matrices are introduced into wear resistant particles.
    [9]
    9. An appliance device (the method according to claims 1-7, comprising means for holding the pipe to be covered in a horizontal direction, a probe with means for separately supplying a reinforcing material and a matrix material, and means for creating a relative axial movement of the pipe and the probe and rotating the coated pipe,
    to, characterized in that the probe is provided with a mixing chamber mounted at its outlet end associated with means for supplying the reinforcing material and material
    ts of the matrix, wherein the means for supplying the reinforcing material is made in the form of a tube connected to a source of compressed air.
    [10]
    10. The device according to claim 9, characterized in that the means
    0 for supplying the matrix material is made in the form of two separate tubes for transporting the resin and hardener.
    [11]
    11. The device according to claim 10, wherein the probe is provided with an additional chamber for mixing the resin and hardener located in front of the mixing chamber in the direction of feeding the matrix material.
    0
    [12]
    12. The device according to claim 9, wherein the mixer, on the chamber, is provided with means for curling the air flow with the reinforcing material and the annular chamber,
    [13]
    5, which encloses the air flow, with a series of holes along the internal contour13. The device according to claim 9, characterized in that the mixing chamber is detachably connected to the probe body.
    [14]
    14. The device according to paragraphs. 9-13, characterized in that it is provided with a preparatory probe, a means for its axial movement,
    5 coaxially mounted with the probe means for supporting the pipe and means for rotating the pipe in preparing its surface for coating.
    [15]
    15. The device according to claim 14, distinguished by the fact that the preparatory probe is provided with a fixed
    at its end, the shlifunders are brushed and the mechanism of its rotation is made with a longitudinal vacuum channel, the entrance hole of which is located in front of the grinding wheel with a brush, and the channel is connected to the vacuum source with which the device is provided.
    [16]
    16. The device according to claim 15, which is designed so that the preparatory probe is equipped with a device for applying the preparatory fluid and a tube for its delivery, installed at its end.
    5 along the probe.
    [17]
    17, Ustrbystvo on PP. 15 and 1b, whether it is due to the fact that the mechanism of the anti-scouring brush is better than the one with a single motor-ROM shaft installed in the subsurface inside the vacuum channel
    [18]
    18. The device according to paragraphs. 15-17, about t and ch and y with the fact that the preparatory probe is supplied with shielding plates, located above
    - the inlet of the vacuum channel and the grinding brush.
    [19]
    19. Device on PP. 9-18, in accordance with the design, the tbon is equipped with a frame with mounted on
    with tanks for reinforcing material and matrix material and at least one movable bore for each of the probes mounted on the rails, means for displacing the movable support at a speed less than the speed of the probe moving, and cpeSclrBk for holding the pipe in horizontal position and rotation it is mounted on said frame.
    Sources of information, take "(e into account in the examination
    1. Patent of Great Britain 1145936, cl. In 211, published. 1969 (prototype).
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    同族专利:
    公开号 | 公开日
    GB2056887A|1981-03-25|
    AU3741478A|1980-01-03|
    GB2000053A|1979-01-04|
    GB2056887B|1982-07-14|
    ZA783612B|1979-06-27|
    US4515832A|1985-05-07|
    IN150509B|1982-10-30|
    GB2000053B|1982-07-21|
    CA1116946A|1982-01-26|
    AU517539B2|1981-08-06|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/809,570|US4515832A|1977-06-24|1977-06-24|Method for coating the inside of pipe|
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