CN113262960B - Method for treating hot melt adhesive powder of anti-corrosion pipe - Google Patents
Method for treating hot melt adhesive powder of anti-corrosion pipe Download PDFInfo
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- CN113262960B CN113262960B CN202110354452.XA CN202110354452A CN113262960B CN 113262960 B CN113262960 B CN 113262960B CN 202110354452 A CN202110354452 A CN 202110354452A CN 113262960 B CN113262960 B CN 113262960B
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- 239000000843 powder Substances 0.000 title claims abstract description 150
- 238000005260 corrosion Methods 0.000 title claims abstract description 146
- 239000004831 Hot glue Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 80
- 238000009826 distribution Methods 0.000 claims abstract description 41
- 238000013016 damping Methods 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 21
- 230000001070 adhesive effect Effects 0.000 claims description 21
- 239000012943 hotmelt Substances 0.000 claims description 19
- 239000003292 glue Substances 0.000 claims description 16
- 230000005855 radiation Effects 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000007757 hot melt coating Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/005—Apparatus specially designed for applying particulate materials to the inside of hollow work
- B05C19/007—Apparatus specially designed for applying particulate materials to the inside of hollow work for applying the particulate materials to the inside of hollow tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/06—Storage, supply or control of the application of particulate material; Recovery of excess particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
Landscapes
- Coating Apparatus (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of anti-corrosion pipes, in particular to a method for treating hot melt adhesive powder of an anti-corrosion pipe. Technical problems: a method for treating the hot-melt adhesive powder of anticorrosion tube is disclosed. The technical proposal is as follows: the processing equipment comprises a working machine bed plate, a supporting foot rest, a top quick heating system, a rubber powder distribution control system and a rubber powder feeding system; the lower part of the bed plate of the working machine is welded with the supporting foot rest. The invention realizes automatic hot melt coating of the hot melt adhesive powder on the inner surface of the anti-corrosion pipe, the hot melt adhesive powder moves gradually along the inclined direction, so that the hot melt adhesive powder is uniformly distributed, and aiming at the weld seam residual height on the inner surface of the anti-corrosion pipe, the upward vibration of the higher side of the anti-corrosion pipe can be controlled, namely, the hot melt adhesive powder can pass the weld seam residual height to continue coating.
Description
Technical Field
The invention relates to the field of anti-corrosion pipes, in particular to a method for treating hot melt adhesive powder of an anti-corrosion pipe.
Background
The corrosion-resistant pipe is also commonly called as a corrosion-resistant steel pipe, and is a steel pipe which is processed by a corrosion-resistant process and can effectively prevent or slow down corrosion caused by chemical or electrochemical reaction in the transportation and use processes.
At present, in the prior art, a layer of anti-corrosion protective layer is often formed on the inner surface of an anti-corrosion pipeline by using hot melt adhesive powder, and when the hot melt adhesive powder is smeared on the inner surface of the pipeline, the inner part of the pipeline is difficult to touch to the position near the center because of the limitation of the size of a treatment device in the prior art, so that the inner surface of the pipeline with long length and small pipe diameter is difficult to smear the hot melt adhesive powder fully; and if the target pipeline is formed by welding two or more sections of pipelines, the phenomenon that molten metal flows through the welding joint to enter the pipeline at the welding part, and finally, after solidification, a circle of raised annular metal blocks are formed on the inner surface of the pipeline welding part, so that the weld seam surplus height is formed, the difficulty of smearing hot melt adhesive powder on the inner surface of the pipeline is increased, the diffusion of the hot melt adhesive powder on the inner wall of the anti-corrosion pipeline is influenced, and the phenomenon cannot be treated in the prior art.
Aiming at the problems, we provide a method for treating the hot melt adhesive powder of the anti-corrosion pipe.
Disclosure of Invention
In order to overcome the defect that in the prior art, a layer of anti-corrosion protective layer is formed by using hot melt adhesive powder on the inner surface of an anti-corrosion pipeline, when the hot melt adhesive powder is smeared on the inner surface of the pipeline, the inner part of the pipeline is difficult to touch to the position near the center because of the limitation of the size of a treatment device in the prior art, so that the inner surface of the pipeline with long length and small pipe diameter is difficult to smear the hot melt adhesive powder fully; if the treated target pipeline is formed by welding two or more sections of pipelines, molten metal flows through the welding joint to enter the pipeline at the welding part, after final solidification, a circle of raised annular metal blocks are formed on the inner surface of the pipeline welding part, so that the weld seam surplus height is formed, the difficulty of coating the inner surface of the pipeline with hot melt adhesive powder is increased, and the defect of diffusion of the hot melt adhesive powder on the inner wall of the anti-corrosion pipeline is influenced, and the technical problem is that: a method for treating the hot-melt adhesive powder of anticorrosion tube is disclosed.
The technical proposal is as follows: the processing equipment comprises a working machine bed plate, a supporting foot rest, a top quick heating system, a rubber powder distribution control system and a rubber powder feeding system; the lower part of the bed plate of the working machine is welded with the supporting foot rest; the upper part of the bed plate of the working machine is connected with a top quick heating system; the upper part of the bed plate of the working machine is connected with a rubber powder distribution control system; the upper part of the bed plate of the working machine is connected with a rubber powder feeding system;
the method for treating the hot melt adhesive powder of the anti-corrosion pipe comprises the following steps:
step one: adding rubber powder, namely adding hot melt rubber powder into a rubber powder feeding system;
step two: the anti-corrosion pipe is fixed, and the anti-corrosion pipe to be treated is fixed above the rubber powder distribution control system;
step three: feeding in a pipe, and controlling a rubber powder feeding system to add sufficient hot melt rubber powder into an anti-corrosion pipe to be treated, wherein the anti-corrosion pipe is fixed by a rubber powder distribution control system;
step four: the glue powder is dispersed, and the glue powder distribution control system is controlled to drive the anti-corrosion pipe to rotate, so that the glue powder on the inner side of the anti-corrosion pipe is uniformly distributed on the inner side of the anti-corrosion pipe under the rotation action;
step five: the vibration is dispersed, the rubber powder distribution control system is controlled to stop driving the anti-corrosion pipe to rotate and drive the anti-corrosion pipe to vibrate, so that the rubber powder can be separated from the inner wall of the anti-corrosion pipe for a short time, the hot melt rubber powder passes over the weld seam surplus height in the anti-corrosion pipe, the other side of the weld seam of the anti-corrosion pipe can perform distribution movement, and part of the hot melt rubber powder moves upwards until contacting the inner top of the anti-corrosion pipe;
step six: and (3) accelerating hot melting, and in the fifth step, the hot melt adhesive powder which moves upwards until contacting the inner top of the anti-corrosion pipe is quickly heated by a top quick heating system, so that the hot melt adhesive powder is adhered to the inner top of the anti-corrosion pipe.
Optionally, the top rapid heating system comprises a mounting top plate, a first mounting side frame plate, a second mounting side frame plate, a power motor, a rotating shaft rod, a first driving wheel, a second driving wheel, a screw rod, an internal thread sliding seat, a heat radiation heating frame plate, a limiting sliding seat and a limiting sliding rod; the mounting top plate is connected with the first mounting side frame plate through bolts; the lower part of the first mounting side frame plate is connected with a working machine tool plate through bolts; the second mounting side frame plate is connected with the mounting top plate through bolts; the lower part of the second mounting side frame plate is connected with a working machine tool plate through bolts; the lower part of the power motor is connected with the mounting top plate through bolts; the rotating shaft rod is fixedly connected with the output shaft of the power motor; the rotating shaft rod is rotationally connected with the second mounting side frame plate; the axle center of the first driving wheel is fixedly connected with the rotating shaft rod; the outer ring surface of the second driving wheel is in driving connection with the first driving wheel through a belt; the screw rod is fixedly connected with the second driving wheel; the screw rod is rotationally connected with the second mounting side frame plate; the screw rod is rotationally connected with the first mounting side frame plate; the inner side of the internal thread sliding seat is in transmission connection with the screw rod; the heat radiation heating frame plate is connected with the internal thread sliding seat through bolts; the limit sliding seat is connected with the heat radiation heating frame plate through bolts; the outer surface of the limit sliding rod is in sliding connection with the limit sliding seat; the limiting slide bar is fixedly connected with the second mounting side frame plate; the limiting slide bar is fixedly connected with the first mounting side frame plate.
Optionally, the rubber powder distribution control system comprises a first fixed long frame plate, a first mounting seat, a second fixed long frame plate, a first electric rotating heating roller column, a second electric rotating heating roller column, a connecting arc-shaped seat plate, a first electric rotating pipe clamp, a second mounting seat, a third electric rotating pipe clamp, a fourth electric rotating pipe clamp, a first elastic telescopic support plate, a second elastic telescopic support plate, an electric sliding seat plate, a first connecting shaft control rod, a traction control rod, a second connecting shaft control rod, a damping sliding column seat, a limiting sliding frame plate, a damping lifting seat, an electric rotating sleeve, a special-shaped track cylinder, a control track column and a sliding hemisphere; the lower part of the first fixed long frame plate is connected with a working machine tool plate through bolts; the first mounting seat is rotationally connected with the first fixed long frame plate; the second fixed long frame plate is rotationally connected with the first mounting seat; the lower part of the second fixed long frame plate is connected with a working machine tool plate through bolts; the first electric rotating heating roller column is rotationally connected with the first mounting seat; the second electric rotating heating roller column is rotationally connected with the first mounting seat; the lower part of the connecting arc-shaped seat plate is fixedly connected with the first mounting seat; the lower part of the first electric rotating pipe clamp is connected with a first mounting seat through bolts; the lower part of the second electric rotating pipe clamp is connected with the first mounting seat through bolts; the second mounting seat is rotationally connected with the first electric rotating heating roller column; the second mounting seat is rotationally connected with a second electric rotating heating roller column; the lower part of the third electric rotating pipe clamp is connected with the second mounting seat through bolts; the lower part of the fourth electric rotating pipe clamp is connected with the second mounting seat through bolts; the first elastic telescopic supporting plate is rotationally connected with the second mounting seat; the second elastic telescopic supporting plate is rotationally connected with the second mounting seat; the upper part of the electric sliding seat plate is connected with a first elastic telescopic support plate through bolts; the upper part of the electric sliding seat plate is connected with a second elastic telescopic support plate through bolts; the first connecting shaft control rod is rotationally connected with the second mounting seat; the traction control rod is rotationally connected with the first connecting shaft control rod; the second connecting shaft control rod is rotationally connected with the traction control rod; the lower part of the second connecting shaft control rod is rotationally connected with the electric sliding seat plate; the damping slide column seat is in sliding connection with the electric slide seat plate; the lower part of the damping slide column seat is connected with a working machine tool plate through bolts; the limit sliding frame plate is in sliding connection with the traction control rod; the damping lifting seat is connected with the limiting sliding frame plate through bolts; the lower part of the damping lifting seat is connected with the electric sliding seat plate through bolts; the electric rotating sleeve is connected with the damping lifting seat through bolts; the outer surface of the special-shaped track cylinder is connected with the electric rotating sleeve; the control track column is fixedly connected with the traction control rod; the sliding hemisphere is fixedly connected with the control track column; the sliding hemisphere is in sliding connection with the special-shaped track cylinder.
Optionally, the rubber powder feeding system comprises a mounting column, an electric rotating support column, an electric telescopic rod, a storage box and a discharging canal plate; the lower part of the mounting column is connected with a working machine tool plate through bolts; the electric rotating support column is connected with the mounting column; the electric telescopic rod is fixedly connected with the electric rotary support column; the storage box is connected with the electric telescopic rod through bolts; the blanking canal plate is connected with the storage box through bolts.
Optionally, the first electric rotating heating roller and the second electric rotating heating roller are inclined at an angle of ten degrees to the horizontal.
Optionally, the inner surface of the special-shaped track cylinder is provided with a spiral track, the head end and the tail end of the spiral track are connected through a linear track, and two sides of the linear track are provided with a buffer baffle.
The beneficial effects of the invention are as follows: in order to solve the problems that in the prior art, hot melt adhesive powder is often used for forming an anti-corrosion protective layer on the inner surface of an anti-corrosion pipeline, when the hot melt adhesive powder is smeared on the inner surface of the pipeline, the inner part of the pipeline is difficult to touch to the position near the center because of the limitation of the size of a treatment device in the prior art, so that the inner surface of the pipeline with long length and small pipe diameter is difficult to smear the hot melt adhesive powder fully; if the treated target pipeline is formed by welding two or more sections of pipelines, molten metal flows through the welding joint to enter the pipeline at the welding position, and finally, after solidification, a circle of raised annular metal blocks are formed on the inner surface of the pipeline welding position, so that the surplus height of the welding seam is formed, the difficulty of coating the inner surface of the pipeline with hot melt adhesive powder is increased, and the problem of diffusion of the hot melt adhesive powder on the inner wall of the anti-corrosion pipeline is influenced;
the method comprises the steps that when the anti-corrosion pipe is used, hot melt adhesive is firstly added into the anti-corrosion pipe to be treated, then the anti-corrosion pipe to be treated is fixed above the adhesive distribution control system, the adhesive feeding system is controlled to add enough hot melt adhesive into the anti-corrosion pipe to be treated, which is fixed by the adhesive distribution control system, the adhesive distribution control system is controlled to drive the anti-corrosion pipe to rotate, so that the adhesive on the inner side of the anti-corrosion pipe is uniformly distributed on the inner side of the anti-corrosion pipe under the rotation action, the adhesive distribution control system is controlled to stop driving the anti-corrosion pipe to rotate, and the anti-corrosion pipe is driven to vibrate, so that the adhesive can be temporarily separated from the inner wall of the anti-corrosion pipe, so that the hot melt adhesive can move across the weld seam of the anti-corrosion pipe, and simultaneously part of the hot melt adhesive moves upwards to be contacted with the inner top of the anti-corrosion pipe, the hot melt adhesive which is upwards moved to the top of the anti-corrosion pipe is rapidly heated by the top quick heating system, so that the hot melt adhesive is adhered to the inner side of the anti-corrosion pipe, and then the adhesive is controlled to drive the adhesive distribution control system to rotate to uniformly distribute the adhesive on the inner side of the anti-corrosion pipe under the rotation action;
the automatic hot melt coating of the hot melt adhesive powder on the inner surface of the anti-corrosion pipe is realized, the anti-corrosion pipe is controlled to rotate under an inclined state, the hot melt adhesive powder moves gradually along the inclined direction, and meanwhile, the hot melt adhesive powder is heated, so that the hot melt adhesive powder is uniformly distributed, the upper side of the high position of the anti-corrosion pipe can be controlled to vibrate upwards aiming at the weld seam residual height existing on the inner surface of the anti-corrosion pipe, and the hot melt adhesive powder can pass through the weld seam residual height to continue the coating effect.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a first perspective view of a top rapid thermal system according to the present invention;
FIG. 3 is a schematic diagram of a second perspective view of the top rapid thermal system of the present invention;
FIG. 4 is a schematic diagram of a first perspective structure of the rubber powder distribution control system of the present invention;
FIG. 5 is a schematic diagram of a second perspective structure of the rubber powder distribution control system of the present invention;
FIG. 6 is a schematic diagram of a third perspective structure of the powder distribution control system according to the present invention;
FIG. 7 is a schematic perspective view of a first portion of the powder distribution control system according to the present invention;
FIG. 8 is a schematic diagram of a second part of a gum powder distribution control system according to the present invention;
FIG. 9 is a schematic perspective view of a rubber powder feeding system according to the present invention;
FIG. 10 is a first split exploded view of the profiled rail sleeve of the present invention;
FIG. 11 is a second split exploded view of the profiled rail sleeve of the present invention;
fig. 12 is a third split exploded view of the profiled rail sleeve of the present invention.
The reference symbols in the drawings: 1_working machine bed board, 2_supporting foot stand, 3_top quick heating system, 4_glue distribution control system, 5_glue feeding system, 301_mounting top board, 302_first mounting side board, 303_second mounting side board, 304_power motor, 305_rotating shaft lever, 306_first driving wheel, 307_second driving wheel, 308_screw rod, 309_internally threaded sliding seat, 3010_heat radiation heating frame board, 3011_limit sliding seat, 3012_limit sliding rod, 401_first fixed long board, 402_first mounting seat, 403_second fixed long board, 404_first electric rotating heating roller column, 405_second electric rotating heating roller column, 406_joining arc-shaped seat board, 407_first electric rotating pipe clamp, 408_second electric rotating pipe clamp, 409_second mount, 4010_third electric rotating pipe clamp, 4011_fourth electric rotating pipe clamp, 4012_first elastic telescopic support plate, 4013_second elastic telescopic support plate, 4014_electric sliding seat plate, 4015_first connecting shaft control rod, 4016_traction control rod, 4017_second connecting shaft control rod, 4018_damping strut seat, 4019_limit sliding frame plate, 4020_damping lifting seat, 4021_electric rotating sleeve, 4022_special-shaped track cylinder, 4023_control track cylinder, 4024_sliding hemisphere, 501_mount cylinder, 502_electric rotating support column, 503_electric telescopic rod, 504_storage box, 505_blanking canal plate.
Detailed Description
The following description is of the preferred embodiments of the invention, and is not intended to limit the scope of the invention.
Example 1
1-12, the processing equipment comprises a working machine bed board 1, a supporting foot rest 2, a top quick heating system 3, a rubber powder distribution control system 4 and a rubber powder feeding system 5; the lower part of the bed plate 1 of the working machine is welded with a supporting foot rest 2; the upper part of the working machine bed board 1 is connected with a top quick heating system 3; the upper part of the working machine bed board 1 is connected with a rubber powder distribution control system 4; the upper part of the working machine bed board 1 is connected with a rubber powder feeding system 5;
the method for treating the hot melt adhesive powder of the anti-corrosion pipe comprises the following steps:
step one: adding rubber powder, namely adding hot melt rubber powder into a rubber powder feeding system 5;
step two: the anti-corrosion pipe is fixed, and the anti-corrosion pipe to be processed is fixed above the rubber powder distribution control system 4;
step three: the method comprises the steps of feeding materials in a pipe, controlling a rubber powder feeding system 5 to add sufficient hot melt rubber powder into an anti-corrosion pipe to be treated, wherein the anti-corrosion pipe is fixed by a rubber powder distribution control system 4;
step four: the glue powder is dispersed, and the glue powder distribution control system 4 is controlled to drive the anti-corrosion pipe to rotate, so that the glue powder on the inner side of the anti-corrosion pipe is uniformly distributed on the inner side of the anti-corrosion pipe under the rotation action;
step five: the vibration is dispersed, the rubber powder distribution control system 4 is controlled to stop driving the anti-corrosion pipe to rotate and drive the anti-corrosion pipe to vibrate, so that the rubber powder can be separated from the inner wall of the anti-corrosion pipe for a short time, the hot melt rubber powder passes over the weld seam surplus height in the anti-corrosion pipe, the other side of the weld seam of the anti-corrosion pipe can perform distribution movement, and part of the hot melt rubber powder moves upwards until contacting the inner top of the anti-corrosion pipe;
step six: and (3) accelerating hot melting, and in the fifth step, the hot melt adhesive powder which moves upwards until contacting the inner top of the anti-corrosion pipe is quickly heated by the top quick heating system 3, so that the hot melt adhesive powder is adhered to the inner top of the anti-corrosion pipe.
When using the equipment used in the method for processing the hot melt adhesive powder of the anti-corrosion pipe, firstly, the device is stably fixed on a working plane, then a power supply is externally connected and a controller is externally connected to control the device to operate, firstly, the hot melt adhesive powder is added into the inner part of the adhesive powder feeding system 5, then the anti-corrosion pipe to be processed is fixed above the adhesive powder distribution control system 4, then the adhesive powder feeding system 5 is controlled to add enough hot melt adhesive powder into the anti-corrosion pipe to be processed, which is fixed by the adhesive powder distribution control system 4, the adhesive powder distribution control system 4 is controlled to drive the anti-corrosion pipe to rotate, the adhesive powder on the inner side of the anti-corrosion pipe is uniformly distributed on the inner side of the anti-corrosion pipe under the rotation effect, the adhesive powder distribution control system 4 is controlled to stop driving the anti-corrosion pipe to vibrate, the adhesive powder can be separated from the inner wall of the anti-corrosion pipe temporarily, the hot melt adhesive powder is enabled to cross the seam surplus position inside the anti-corrosion pipe, the hot melt adhesive powder can be heated by the top quick heating system 3 in the fifth step to be adhered to the inner top of the anti-corrosion pipe, then the adhesive powder distribution control system 4 is continuously controlled to drive the anti-corrosion pipe to rotate, the adhesive powder on the inner side of the anti-corrosion pipe is uniformly distributed on the inner side of the anti-corrosion pipe under the rotating action, the automatic hot melt coating of the hot melt adhesive powder on the inner surface of the anti-corrosion pipe is realized, the anti-corrosion pipe is controlled to rotate under the inclined state, the hot melt adhesive powder is gradually moved along the inclined direction, and is heated at the same time, so that the hot melt adhesive powder is uniformly distributed, and the upper side of the anti-corrosion pipe can be controlled to vibrate upwards aiming at the weld seam surplus position on the inner surface of the anti-corrosion pipe, i.e. the effect that the hot melt adhesive powder can continue to be coated beyond the weld seam surplus.
The top rapid heating system 3 comprises a mounting top plate 301, a first mounting side frame plate 302, a second mounting side frame plate 303, a power motor 304, a rotating shaft rod 305, a first driving wheel 306, a second driving wheel 307, a screw rod 308, an internal thread sliding seat 309, a heat radiation heating frame plate 3010, a limiting sliding seat 3011 and a limiting sliding rod 3012; the mounting top plate 301 is bolted to the first mounting side frame plate 302; the lower part of the first mounting side frame plate 302 is connected with the working machine bed plate 1 through bolts; the second mounting side frame plate 303 is bolted to the mounting top plate 301; the lower part of the second mounting side frame plate 303 is connected with the working machine bed plate 1 through bolts; the lower part of the power motor 304 is connected with the mounting top plate 301 through bolts; the rotating shaft rod 305 is fixedly connected with the output shaft of the power motor 304; the rotation shaft lever 305 is rotatably connected to the second mounting side frame plate 303; the axle center of the first driving wheel 306 is fixedly connected with the rotating shaft lever 305; the outer annular surface of the second transmission wheel 307 is in transmission connection with the first transmission wheel 306 through a belt; the screw rod 308 is fixedly connected with the second driving wheel 307; the screw rod 308 is rotatably connected with the second mounting side frame plate 303; the screw rod 308 is rotatably connected with the first mounting side frame plate 302; the inner side of the internal thread sliding seat 309 is in transmission connection with the screw rod 308; the heat radiation heating frame plate 3010 is bolted to the internally threaded slide seat 309; the limiting sliding seat 3011 is connected with the thermal radiation heating frame plate 3010 by bolts; the outer surface of the limit sliding rod 3012 is in sliding connection with the limit sliding seat 3011; the limiting slide bar 3012 is fixedly connected with the second mounting side frame plate 303; the limit slide bar 3012 is fixedly coupled to the first mounting side frame plate 302.
The glue powder distribution control system 4 stops driving the anti-corrosion pipe to rotate and drives one side of the anti-corrosion pipe to vibrate and swing upwards, so that glue powder can be separated from the inner wall of the anti-corrosion pipe temporarily, hot melt glue powder passes through the weld seam remaining height of the inner part of the anti-corrosion pipe and can move in a distributed mode on the other side of the weld seam of the anti-corrosion pipe, meanwhile, part of the hot melt glue powder moves upwards to be contacted with the inner top of the anti-corrosion pipe, meanwhile, the heat radiation heating frame plate 3010 is in a high-temperature radiation heating state, namely, the heat radiation heating frame plate 3010 transfers heat to the top of the anti-corrosion pipe below, part of the hot melt glue powder moves upwards to be contacted with the inner top of the anti-corrosion pipe and then is quickly and thermally fused to be attached to the inner top of the anti-corrosion pipe, meanwhile, the power motor 304 drives the rotating shaft rod 305 to rotate, then the rotating shaft rod 305 drives the first driving wheel 306 to rotate, then the first driving wheel 306 drives the second driving wheel 307 to rotate, and then the second driving wheel 307 drives the screw 308 to rotate, then the screw 308 drives the inner thread sliding seat 309 to move, and meanwhile, the heat radiation heating frame plate 3010 moves, and the heat radiation heating frame plate 3010 slowly and the whole to move on the surface of the top of the anti-corrosion pipe 3012.
The rubber powder distribution control system 4 comprises a first fixed long frame plate 401, a first mounting seat 402, a second fixed long frame plate 403, a first electric rotating heating roller column 404, a second electric rotating heating roller column 405, a connecting arc-shaped seat plate 406, a first electric rotating pipe clamp 407, a second electric rotating pipe clamp 408, a second mounting seat 409, a third electric rotating pipe clamp 4010, a fourth electric rotating pipe clamp 4011, a first elastic telescopic supporting plate 4012, a second elastic telescopic supporting plate 4013, an electric sliding seat plate 4014, a first connecting shaft control rod 4015, a traction control rod 4016, a second connecting shaft control rod 4017, a damping sliding column seat 4018, a limiting sliding frame plate 4019, a damping lifting seat 4020, an electric rotating sleeve 4021, a special-shaped track cylinder 4022, a control track column 4023 and a sliding hemisphere 4024; the lower part of the first fixed long frame plate 401 is connected with the bed plate 1 of the working machine through bolts; the first mounting seat 402 is rotatably connected with the first fixed long frame plate 401; the second fixed long frame plate 403 is rotatably connected with the first mounting seat 402; the lower part of the second fixed long frame plate 403 is connected with the bed plate 1 of the working machine through bolts; the first electric rotating heating roller 404 is rotationally connected with the first mounting base 402; the second electric rotating heating roller 405 is rotationally connected with the first mounting base 402; the lower part of the connecting arc-shaped seat plate 406 is fixedly connected with the first mounting seat 402; the lower part of the first electric rotating pipe clamp 407 is connected with the first mounting seat 402 through bolts; the lower part of the second electric rotating pipe clamp 408 is connected with the first mounting seat 402 through bolts; the second mounting seat 409 is rotatably connected with the first electric rotary heating roller 404; the second mounting seat 409 is rotatably connected with the second electric rotating heating roller 405; the lower part of the third electric rotating pipe clamp 4010 is connected with the second mounting seat 409 through bolts; the lower part of the fourth electric rotating pipe clamp 4011 is connected with a second mounting seat 409 through bolts; the first elastic telescopic support plate 4012 is rotatably connected with the second mounting seat 409; the second elastic telescopic support plate 4013 is rotatably connected with the second mounting seat 409; the upper part of the electric sliding seat plate 4014 is connected with a first elastic telescopic support plate 4012 through bolts; the upper part of the electric sliding seat plate 4014 is connected with a second elastic telescopic support plate 4013 through bolts; the first connecting shaft control rod 4015 is rotatably connected with the second mounting seat 409; the traction control lever 4016 is rotatably connected with the first connecting shaft control lever 4015; the second connecting shaft control rod 4017 is rotatably connected with the traction control rod 4016; the lower part of the second connecting shaft control rod 4017 is rotationally connected with the electric slide seat plate 4014; the damping strut seat 4018 is in sliding connection with the electric slide plate 4014; the lower part of the damping slide column seat 4018 is connected with the bed plate 1 of the working machine through bolts; the limit sliding frame plate 4019 is in sliding connection with the traction control rod 4016; the damping lifting seat 4020 is connected with the limit sliding frame plate 4019 through bolts; the lower part of the damping lifting seat 4020 is connected with an electric slide seat plate 4014 through bolts; the electric rotating sleeve 4021 is in bolt connection with the damping lifting seat 4020; the outer surface of the special-shaped track cylinder 4022 is connected with an electric rotating sleeve 4021; control rail column 4023 is fixedly coupled to traction control rod 4016; the sliding hemisphere 4024 is fixedly connected with the control track column 4023; the sliding hemisphere 4024 is slidably connected to the shaped rail tube 4022.
Firstly, placing an anti-corrosion pipe in a gap at the top of a first electric rotating heating roller column 404 and a second electric rotating heating roller column 405, placing one end of the anti-corrosion pipe at the inner side of a joint arc-shaped seat plate 406, then controlling the first electric rotating heating roller column 404 and the second electric rotating heating roller column 405 to rotate in the same direction, simultaneously controlling heating modules in the first electric rotating heating roller column 404 and the second electric rotating heating roller column 405 to start to operate, namely, the first electric rotating heating roller column 404 and the second electric rotating heating roller column 405 drive the anti-corrosion pipe to rotate and heat the anti-corrosion pipe, then controlling a rubber powder feeding system 5 to add hot melt rubber powder into the anti-corrosion pipe, further moving the hot melt rubber powder to one side in the anti-corrosion pipe along with the rotation of the anti-corrosion pipe, simultaneously enabling the hot melt rubber powder contacted with the inner surface of the anti-corrosion pipe to melt and adhere to the other side after the anti-corrosion pipe is heated, and then continuing moving the hot melt rubber powder to the other side, when the hot melt adhesive powder passes through the weld seam surplus height of the inner side of the anti-corrosion pipe, the first electric rotating heating roller column 404 and the second electric rotating heating roller column 405 are controlled to stop rotating, the first electric rotating pipe clamp 407, the second electric rotating pipe clamp 408, the third electric rotating pipe clamp 4010 and the fourth electric rotating pipe clamp 4011 are controlled to clamp and fix the anti-corrosion pipe, namely, the anti-corrosion pipe is fixed at the moment, the power supply of the electric rotating sleeve 4021 is controlled to be connected, then the electric rotating sleeve 4021 drives the special-shaped track cylinder 4022 to rotate, then the special-shaped track cylinder 4022 rotates, namely, the track column 4023 is controlled to slide on the inner side of the special-shaped track cylinder 4022 through the sliding hemisphere 4024, when the sliding hemisphere 4024 moves in the spiral track part of the special-shaped track cylinder 4022, the sliding hemisphere 4024 drives the traction control rod 4016 to move away from the second mounting seat 409 through the control track column 4023, the traction control rod 4016 drives the first connecting shaft control rod 4015 and the second connecting shaft control rod 4017 to move towards the direction close to the electric rotating sleeve 4021, then along with the movement of the first connecting shaft control rod 4015 and the second connecting shaft control rod 4017, the first connecting shaft control rod 4015 drives the second installation seat 409 to descend, the second installation seat 409 drives the first elastic telescopic support plate 4012 and the second elastic telescopic support plate 4013 to shrink, when the sliding hemisphere 4024 moves to the tail end of the spiral track part of the special-shaped track cylinder 4022, at the moment, because of the upward elasticity of the first elastic telescopic support plate 4012 and the second elastic telescopic support plate 4013, the first elastic telescopic support plate 4012 and the second elastic telescopic support plate 4013 quickly upwards push the second installation seat 409, meanwhile, the first connecting shaft control rod 4015 and the second connecting shaft control rod 4017 are driven to reversely move the traction control rod 4016, namely, the traction control rod 4016 drives the sliding hemisphere 4024 to enter a linear rail connected with the tail end of the spiral rail for resetting, namely, the sliding hemisphere 4024 moves to the head end of the linear rail and then enters the spiral rail part again for moving, in the process that the first elastic telescopic supporting plate 4012 and the second elastic telescopic supporting plate 4013 quickly push up the second installation seat 409, namely, the second installation seat 409 drives one side of the first electric rotating heating roller column 404 and one side of the second electric rotating heating roller column 405 to quickly move upwards, thereby driving one side of the anti-corrosion pipe to quickly move upwards, further increasing the inclination degree of the anti-corrosion pipe, simultaneously, the anti-corrosion pipe has upward initial speed, further hot melt adhesive powder on the inner side of the anti-corrosion pipe lifts upwards and passes through the weld seam residual position and continues to move rightwards for diffusion, the lifted hot melt adhesive powder part contacts the inner top of the anti-corrosion pipe, further the top quick heating system 3 quickly heats the anti-corrosion pipe, the hot melt adhesive powder contacting the inner top of the anti-corrosion pipe can be quickly melted and attached, the electric rotating sleeve 4021 is controlled to stop rotating after the second mounting seat 409 is repeatedly moved up and down for several times, the first electric rotating pipe clamp 407, the second electric rotating pipe clamp 408, the third electric rotating pipe clamp 4010 and the fourth electric rotating pipe clamp 4011 are opened, the first electric rotating heating roller column 404 and the second electric rotating heating roller column 405 are controlled to heat the anti-corrosion pipe above the first electric rotating heating roller column and the second electric rotating heating roller column 405 and drive the anti-corrosion pipe to rotate, and the uniform coating of the hot melt adhesive powder on the inner side of the anti-corrosion pipe is completed.
The rubber powder feeding system 5 comprises a mounting column 501, an electric rotating support column 502, an electric telescopic rod 503, a storage box 504 and a discharging canal plate 505; the lower part of the mounting column 501 is connected with the bed board 1 of the working machine by bolts; the electric rotating support column 502 is connected with the mounting column 501; the electric telescopic rod 503 is fixedly connected with the electric rotary support column 502; the storage box 504 is connected with the electric telescopic rod 503 through bolts; the blanking ditch plate 505 is bolted to the storage bin 504.
Firstly, sufficient hot melt adhesive powder is added into a storage box 504, when an anti-corrosion pipe is placed in a gap between the tops of a first electric rotating heating roller column 404 and a second electric rotating heating roller column 405, an electric rotating supporting column 502 is controlled to rotate so as to drive an electric telescopic rod 503, the storage box 504 and a discharging canal plate 505 to rotate, the electric telescopic rod 503 is controlled to stretch and adjust the position of the discharging canal plate 505, the bottom tip of the discharging canal plate 505 stretches into an opening on one side of the anti-corrosion pipe, then the storage box 504 is controlled to be opened for discharging, and then the hot melt adhesive powder enters into the anti-corrosion pipe along the discharging canal plate 505, so that the feeding of the hot melt adhesive powder in the anti-corrosion pipe is completed.
The first electric rotating heating roller 404 and the second electric rotating heating roller 405 are inclined at an angle of ten degrees to the horizontal.
So that the hot melt adhesive powder in the anti-corrosion pipe can move to the other side in the process of driving the anti-corrosion pipe to rotate by the first electric rotating heating roller 404 and the second electric rotating heating roller 405.
The inner surface of the special-shaped track cylinder 4022 is provided with a spiral track, the head end and the tail end of the spiral track are connected through a linear track, and two sides of the linear track are provided with buffer baffle plates.
So that the sliding hemisphere 4024 can continuously move between the spiral track and the linear track, and the buffer baffle can reduce the impact force of the sliding hemisphere 4024 and the special-shaped track cylinder 4022.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (4)
1. The processing method of the hot melt adhesive powder of the anti-corrosion pipe adopts the following processing equipment, and the processing equipment comprises a working machine bed board (1), a supporting foot rest (2) and a top quick heating system (3), and is characterized by also comprising a rubber powder distribution control system (4) and a rubber powder feeding system (5); the lower part of the bed plate (1) of the working machine is welded with the supporting foot rest (2); the upper part of the working machine bed plate (1) is connected with a top quick heating system (3); the upper part of the working machine bed plate (1) is connected with a rubber powder distribution control system (4); the upper part of the bed plate (1) of the working machine is connected with a rubber powder feeding system (5);
the method for treating the hot melt adhesive powder of the anti-corrosion pipe comprises the following steps:
step one: adding rubber powder, namely adding hot melt rubber powder into a rubber powder feeding system (5);
step two: the anti-corrosion pipe is fixed, and the anti-corrosion pipe to be treated is fixed above the rubber powder distribution control system (4);
step three: the method comprises the steps of feeding materials in a pipe, controlling a rubber powder feeding system (5) to add sufficient hot melt rubber powder into an anti-corrosion pipe to be treated, wherein the anti-corrosion pipe is fixed by a rubber powder distribution control system (4);
step four: the glue powder is dispersed, and the glue powder distribution control system (4) is controlled to drive the anti-corrosion pipe to rotate, so that the glue powder on the inner side of the anti-corrosion pipe is uniformly distributed on the inner side of the anti-corrosion pipe under the rotation action;
step five: the vibration is dispersed, the rubber powder distribution control system (4) is controlled to stop driving the anti-corrosion pipe to rotate and drive the anti-corrosion pipe to vibrate, so that the rubber powder can be separated from the inner wall of the anti-corrosion pipe for a short time, the hot melt rubber powder passes over the weld seam excess height in the anti-corrosion pipe, the other side of the weld seam of the anti-corrosion pipe can perform distributed movement, and part of the hot melt rubber powder moves upwards until contacting the inner top of the anti-corrosion pipe;
step six: accelerating hot melting, and in the fifth step, moving up until the hot melt adhesive powder contacts the inner top of the anti-corrosion pipe, and rapidly heating by a top rapid heating system (3) to enable the hot melt adhesive powder to be adhered to the inner top of the anti-corrosion pipe;
the top quick heating system (3) comprises a mounting top plate (301), a first mounting side frame plate (302), a second mounting side frame plate (303), a power motor (304), a rotating shaft rod (305), a first driving wheel (306), a second driving wheel (307), a screw rod (308), an internal thread sliding seat (309), a heat radiation heating frame plate (3010), a limiting sliding seat (3011) and a limiting sliding rod (3012); the mounting top plate (301) is in bolt connection with the first mounting side frame plate (302); the lower part of the first mounting side frame plate (302) is connected with the bed plate (1) of the working machine through bolts; the second mounting side frame plate (303) is connected with the mounting top plate (301) through bolts; the lower part of the second installation side frame plate (303) is connected with the working machine bed plate (1) through bolts; the lower part of the power motor (304) is connected with the mounting top plate (301) through bolts; the rotating shaft rod (305) is fixedly connected with the output shaft of the power motor (304); the rotating shaft lever (305) is rotatably connected with the second mounting side frame plate (303); the axle center of the first driving wheel (306) is fixedly connected with the rotating shaft rod (305); the outer ring surface of the second driving wheel (307) is in driving connection with the first driving wheel (306) through a belt; the screw rod (308) is fixedly connected with the second driving wheel (307); the screw rod (308) is rotationally connected with the second mounting side frame plate (303); the screw rod (308) is rotationally connected with the first mounting side frame plate (302); the inner side of the internal thread sliding seat (309) is in transmission connection with the screw rod (308); the heat radiation heating frame plate (3010) is connected with the internal thread sliding seat (309) by bolts; the limiting sliding seat (3011) is connected with the thermal radiation heating frame plate (3010) through bolts; the outer surface of the limit sliding rod (3012) is in sliding connection with the limit sliding seat (3011); the limiting slide rod (3012) is fixedly connected with the second mounting side frame plate (303); the limiting slide bar (3012) is fixedly connected with the first mounting side frame plate (302);
the rubber powder distribution control system (4) comprises a first fixed long frame plate (401), a first mounting seat (402), a second fixed long frame plate (403), a first electric rotating heating roller column (404), a second electric rotating heating roller column (405), a connecting arc-shaped seat plate (406), a first electric rotating pipe clamp (407), a second electric rotating pipe clamp (408), a second mounting seat (409), a third electric rotating pipe clamp (4010), a fourth electric rotating pipe clamp (4011), a first elastic telescopic supporting plate (4012), a second elastic telescopic supporting plate (4013), an electric sliding seat plate (4014), a first connecting shaft control rod (4015), a traction control rod (4016), a second connecting shaft control rod (4017), a damping sliding column seat (4018), a limiting sliding frame plate (4019), a damping lifting seat (4020), an electric rotating sleeve (4021), a special-shaped track cylinder (4022), a control track column (4023) and a sliding hemisphere (4024); the lower part of the first fixed long frame plate (401) is connected with the bed plate (1) of the working machine through bolts; the first mounting seat (402) is rotationally connected with the first fixed long frame plate (401); the second fixed long frame plate (403) is rotationally connected with the first mounting seat (402); the lower part of the second fixed long frame plate (403) is connected with the bed plate (1) of the working machine through bolts; the first electric rotating heating roller column (404) is rotationally connected with the first mounting seat (402); the second electric rotating heating roller column (405) is rotationally connected with the first mounting seat (402); the lower part of the connecting arc-shaped seat plate (406) is fixedly connected with the first mounting seat (402); the lower part of the first electric rotating pipe clamp (407) is connected with the first mounting seat (402) through bolts; the lower part of the second electric rotating pipe clamp (408) is connected with the first mounting seat (402) through bolts; the second mounting seat (409) is rotationally connected with the first electric rotating heating roller column (404); the second mounting seat (409) is rotationally connected with the second electric rotating heating roller column (405); the lower part of the third electric rotating pipe clamp (4010) is connected with a second mounting seat (409) through bolts; the lower part of the fourth electric rotating pipe clamp (4011) is connected with the second mounting seat (409) through bolts; the first elastic telescopic supporting plate (4012) is rotationally connected with the second mounting seat (409); the second elastic telescopic supporting plate (4013) is rotationally connected with the second mounting seat (409); the upper part of the electric sliding seat board (4014) is connected with a first elastic telescopic support board (4012) through bolts; the upper part of the electric sliding seat board (4014) is connected with a second elastic telescopic support board (4013) through bolts; the first connecting shaft control rod (4015) is rotationally connected with the second mounting seat (409); the traction control rod (4016) is rotationally connected with the first connecting shaft control rod (4015); the second connecting shaft control rod (4017) is rotationally connected with the traction control rod (4016); the lower part of the second connecting shaft control rod (4017) is rotationally connected with the electric sliding seat board (4014); the damping slide column seat (4018) is in sliding connection with the electric slide seat plate (4014); the lower part of the damping slide column seat (4018) is connected with the bed plate (1) of the working machine by bolts; the limit sliding frame plate (4019) is in sliding connection with the traction control rod (4016); the damping lifting seat (4020) is connected with the limit sliding frame plate (4019) through bolts; the lower part of the damping lifting seat (4020) is connected with an electric sliding seat plate (4014) through bolts; the electric rotating sleeve (4021) is connected with the damping lifting seat (4020) through bolts; the outer surface of the special-shaped track cylinder (4022) is connected with an electric rotating sleeve (4021); the control track column (4023) is fixedly connected with the traction control rod (4016); the sliding hemisphere (4024) is fixedly connected with the control track column (4023); the sliding hemisphere (4024) is in sliding connection with the special-shaped track cylinder (4022).
2. The method for processing the hot melt adhesive powder of the anti-corrosion pipe according to claim 1, wherein the adhesive powder feeding system (5) comprises a mounting column (501), an electric rotating support column (502), an electric telescopic rod (503), a storage box (504) and a discharging canal plate (505); the lower part of the mounting column (501) is connected with the bed board (1) of the working machine by bolts; the electric rotating support column (502) is connected with the mounting column (501); the electric telescopic rod (503) is fixedly connected with the electric rotary support column (502); the storage box (504) is connected with the electric telescopic rod (503) through bolts; the blanking canal plate (505) is connected with the storage box (504) through bolts.
3. The method for treating hot melt adhesive powder for an anti-corrosive pipe according to claim 2, wherein the first electric rotating heating roller (404) and the second electric rotating heating roller (405) are inclined at an angle of ten degrees to the horizontal plane.
4. A method for treating a hot melt adhesive powder for an anti-corrosive pipe according to claim 3, wherein a spiral track is provided on the inner surface of the shaped track cylinder (4022), the head end and the tail end of the spiral track are connected by a straight track, and a buffer stop is provided on both sides of the straight track.
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| FR1579509A (en) * | 1968-02-02 | 1969-08-29 | ||
| FR3005432B1 (en) * | 2013-05-13 | 2015-06-05 | Commissariat Energie Atomique | METHOD FOR DEPOSITING A COMPACT PARTICLE FILM ON THE INNER SURFACE OF A WORKPIECE HAVING A HOLLOW DEDICATED BY THIS INTERNAL SURFACE |
| CN104338660A (en) * | 2013-07-26 | 2015-02-11 | 青岛大仓管道防腐保温器材有限公司 | Patch coater of antiseptic powder in steel pipe |
| CN107377340A (en) * | 2016-07-27 | 2017-11-24 | 武汉光谷节能技术有限公司 | The painting method of fusion bonded epoxy graphene powder is applied in a kind of pipeline |
| CN108499814B (en) * | 2018-04-27 | 2023-08-18 | 宁夏金梯氟塑防腐设备有限公司 | Centrifugal rotary E-shaped carbon steel piece plastic lining device provided with heat preservation cover |
| CN109986471A (en) * | 2018-10-11 | 2019-07-09 | 马付林 | A kind of long range surface treatment of inner wall of steel pipe and coated lining anti-corrosion method |
| CN109261454B (en) * | 2018-10-29 | 2024-03-26 | 湖北世纪伟业防腐科技有限公司 | Plastic lining equipment and plastic lining method |
| CN110052375B (en) * | 2019-05-16 | 2023-11-10 | 宣化中大防腐有限公司 | Device and method for anticorrosive internal coating of epoxy powder on large-caliber steel pipe |
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Effective date of registration: 20230627 Address after: 214500 No. 8, Weiliu Road, Chengbei Industrial Park, Jingjiang Economic Development Zone, Taizhou City, Jiangsu Province Applicant after: Jingjiang Hengyu adhesive Co.,Ltd. Address before: 237000 Room 302, No. 3, Dahuashan Road, Sanshipu Town, Jin'an District, Lu'an City, Anhui Province Applicant before: Shen Yaoyu |
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Denomination of invention: A method for treating anti-corrosion pipes with hot melt adhesive powder Granted publication date: 20230721 Pledgee: Jiangsu Changjiang Commercial Bank Co.,Ltd. Pledgor: Jingjiang Hengyu adhesive Co.,Ltd. Registration number: Y2024980040699 |
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