CN112692005A - Steel pipe hydraulic press - Google Patents
Steel pipe hydraulic press Download PDFInfo
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- CN112692005A CN112692005A CN202011411573.5A CN202011411573A CN112692005A CN 112692005 A CN112692005 A CN 112692005A CN 202011411573 A CN202011411573 A CN 202011411573A CN 112692005 A CN112692005 A CN 112692005A
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Abstract
The invention discloses a steel pipe hydraulic press, which relates to the technical field of steel pipe detection equipment and comprises two bases, wherein a fixed end and a movable end are respectively arranged on the two bases, the movable end is communicated with a water pump pressurizing device, blocking blocks are respectively arranged on the fixed end and the movable end, a bracket is arranged on one side, away from the movable end, of the fixed end in a sliding manner, a driving mechanism for driving the bracket to move is arranged on the bracket, an air source is fixed on the bracket, a supporting pipe is arranged on the air source, a through hole is formed in a base where the fixed end is arranged, one end of the supporting pipe penetrates through the through hole and is fixedly provided with a baffle, a sealing block is fixed on the baffle, a base is arranged on the supporting pipe, a plurality of nozzles facing the baffle are hinged on the base, a first elastic piece is fixedly connected between each nozzle and the base, an air pipe is arranged in the. The invention provides the steel pipe hydraulic press which is environment-friendly to use, can stably remove water stains and ensures the quality of steel pipes.
Description
Technical Field
The invention relates to the technical field of steel pipe detection equipment, in particular to a steel pipe hydraulic press.
Background
The spiral pipe is also called spiral steel pipe or spiral welded pipe, which is made by rolling a low-carbon structural steel or low-alloy structural steel strip into a pipe blank according to a certain spiral line angle (called forming angle) and then welding the pipe seams, and can produce a large-diameter steel pipe by using narrower strip steel; the spiral welded steel pipe is mainly applied to tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction, and the qualification of a hydrostatic test is guaranteed after the production of a spiral pipe is finished.
The utility model discloses a chinese utility model patent that current grant bulletin number is CN203643110U discloses a steel pipe hydrostatic test device, which comprises a fixing frame, be provided with fixed head and activity head on the mount, install the steel pipe between fixed head and the activity head, be equipped with the through-hole in the middle of the fixed head, through-hole fixedly connected with water pipe, the water pipe other end links to each other with the water pump, be equipped with the cylinder of drive activity head on the mount in the activity head outside, the inner of fixed head and activity head has all been seted up and has been sealed, seal including cylinder section and segmental arc, cylinder section cooperation steel pipe external diameter size, the segmental arc is formed by cylinder section outside extension, be equipped with discharge.
By adopting the technical scheme, the steel pipe to be detected is arranged between the fixed end socket and the movable end socket, and the water pump conveys the pressurizing water into the steel pipe for pressurizing test; however, after the test, the residual water stain inside the steel pipe is easy to generate the corrosion phenomenon, so that the quality of the steel pipe is reduced.
Disclosure of Invention
The invention aims to provide a steel pipe hydraulic press, which utilizes a nozzle arranged in a fixed end to perform water stain cleaning operation on the inner wall of a steel pipe, thereby ensuring that the interior of the steel pipe is kept dry after a pressure test is finished and ensuring that the quality of the steel pipe cannot be reduced.
The technical purpose of the invention is realized by the following technical scheme:
a steel pipe hydraulic press comprises two bases, wherein a fixed end and a movable end are respectively arranged on the two bases, the movable end is communicated with a water pump pressurizing device, blocking blocks are respectively arranged on the fixed end and the movable end, a bracket is arranged on one side of the fixed end, which is far away from the movable end, in a sliding manner, a driving mechanism for driving the fixed end to move is arranged on the bracket, an air source is fixed on the bracket, a supporting pipe is arranged on one side of the air source, a through hole is formed on the base, where the fixed end is arranged, the end, which is far away from a trolley, of the supporting pipe penetrates through the through hole and is fixedly provided with a baffle, a sealing block is fixed on one side, which is close to the supporting pipe, a base is arranged on the supporting pipe, a cavity is formed inside the base, a plurality of nozzles facing the baffle are hinged on the base, a first elastic piece, the trachea is arranged in the stay tube, one end of the trachea close to the base is communicated with an adapter, the adapter is communicated with the cavity, and one end of the trachea far away from the base is communicated with an air source.
By adopting the technical scheme, when the steel pipe is pressed, the steel pipe is clamped and arranged at the fixed end and the movable end, the blocking blocks seal the two ends of the steel pipe, the baffle plate and the sealing blocks seal the through hole, and the water pump pressurizing device performs pressing test on the steel pipe; after the pressing is finished, the bracket is driven by the driving mechanism to be close to the fixed end, the support pipe is further driven to extend into the steel pipe, each nozzle is abutted against the inner wall of the steel pipe under the action of the first elastic piece, meanwhile, the compressed air is conveyed to each nozzle through the air pipe by the air source and moves towards one end, away from the fixed end, of the steel pipe under the driving of the driving mechanism, and therefore water stain cleaning inside each steel pipe is finished; after the water stain is cleaned, the bracket is far away from the fixed end under the driving of the driving mechanism, so that each nozzle is further driven to retract into the through hole, and meanwhile, the baffle and the sealing block seal the through hole; through this kind of mode, guarantee to suppress inside the steel pipe after the test is accomplished and keep dry, guarantee that the steel pipe quality can not descend.
The invention is further configured to: the nozzle is provided with rotating wheels in a rotating mode, the rotating direction of each rotating wheel forms an included angle with the axial direction of the steel pipe, the base is rotatably arranged on the supporting pipe, and the air pipe is rotatably connected with the adapter.
Through adopting above-mentioned technical scheme, utilize on each nozzle to rotate the runner that sets up and steel pipe inner wall contact, reduce the friction of nozzle and steel pipe inner wall, the rotation direction of runner is the contained angle setting with the axis direction of steel pipe simultaneously, makes the runner when the pivoted, can drive the base rotatory, and it is rotatory to further drive each nozzle to can further improve the clearance effect to steel pipe inner wall water stain.
The invention is further configured to: the steel pipe clamping device is characterized in that an oil cylinder is arranged on one side, close to the fixed end, of the lower portion of the steel pipe, a supporting plate is fixed to the extending end of the oil cylinder, clamping blocks are arranged on two sides of the supporting plate in the length direction, a top plate is arranged on the supporting plate, and a synchronizing mechanism for driving the two clamping blocks to clamp synchronously is arranged between the top plate and the clamping blocks.
By adopting the technical scheme, the steel pipe is supported by the oil cylinder and the supporting plate at a certain angle, so that water stains in the steel pipe can be conveniently cleaned by the nozzle, and the water stains can flow out of the steel pipe; and meanwhile, the steel pipe is clamped by the clamping block, so that the steel pipe is prevented from sliding in the inclining process to cause danger.
The invention is further configured to: the synchronizing mechanism comprises two slide rods, the two slide rods are fixedly arranged on the lower surface of the top plate and are arranged on the supporting plate in a sliding mode, the lower ends of the two slide rods are hinged to connecting rods, the two ends of the length direction of the supporting plate are hinged to turnover arms, the two connecting rods are hinged to the lower ends of the turnover arms respectively, second elastic pieces are fixedly connected between the lower portions of the turnover arms and the lower surface of the supporting plate, and the two clamping blocks are fixedly arranged on the upper portions of the two turnover arms respectively.
By adopting the technical scheme, when the oil cylinder is supported, the ejector rod is abutted against the outer circle of the steel pipe and moves downwards under the action of the gravity of the steel pipe, the two slide rods further drive the two connecting rods to move, the two connecting rods drive the upper parts of the two turnover arms to approach the steel pipe, and the two clamping blocks are further driven to clamp the steel pipe, so that the clamping operation of the steel pipe is realized.
The invention is further configured to: the stay tube comprises a fixed part, the fixed part is fixedly arranged on an air source, one end, far away from the bracket, of the fixed part is hinged with a turnover part, and the base is rotatably arranged on the turnover part.
Through adopting above-mentioned technical scheme, utilize the fixed part and the upset part of propping the pipe, make the nozzle that sets up at the upset part can further adapt to the water stain clearance operation of slope steel pipe, improve the clearance effect of water stain.
The invention is further configured to: and a support rod which is abutted against the part of the turnover part is fixed at one end of each nozzle far away from the base.
Through adopting above-mentioned technical scheme, utilize the shroud ring to support the upset part, ensure that the upset is retracted and is gone back to the downthehole back, baffle and sealed piece can carry out accurate laminating with the opening of via hole, the leakage of pressurized water when effectively preventing to pressurize.
The invention is further configured to: the one end shaping that the via hole is close to the baffle has the conical surface, sealed piece is inlayed with the conical surface and is established the cooperation, the shaping has a plurality of arris that block water on the sealed piece.
Through adopting above-mentioned technical scheme, utilize the conical surface and the arris that blocks water can further improve the inseparability of the cooperation of sealed piece and via hole department, the leakage of the pressurized water when effectively preventing to pressurize.
The invention is further configured to: and a reservoir is fixed on the ground below the steel pipe, and an inlet of the water pump pressurizing device is communicated with the reservoir.
Through adopting above-mentioned technical scheme, utilize the cistern of base below, the water homoenergetic that suppresses that releases after the completion of suppressing and the nozzle clearance is gone out is suppressed and is suppressed water homoenergetic and flow to the cistern and recycle to make the device can the energy can be saved using.
In conclusion, the beneficial technical effects of the invention are as follows:
(1) the inner wall of the steel pipe is subjected to water stain cleaning operation by using the nozzle arranged in the fixed end, so that the interior of the steel pipe is kept dry after the pressure test is finished, and the quality of the steel pipe is not reduced;
(2) the stable cleaning of the steel pipe can be further ensured by utilizing the rotatably arranged nozzle and the obliquely arranged steel pipe;
(3) by means of the arrangement of the support rods, the water blocking edges and the like, the pressing water can be prevented from leaking from the through holes during pressing;
(4) the reservoir is utilized to recycle the pressurized water, so that the device saves water resources when in use.
Drawings
FIG. 1 is an axial schematic view of the overall structure of one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the overall structure of an embodiment of the present invention, showing the relationship of the components inside the base;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1, showing the construction of the drive mechanism;
FIG. 4 is an enlarged partial view of portion B of FIG. 2, illustrating the structure of components within the via;
fig. 5 is an axial view of the cylinder portion according to an embodiment of the present invention, showing the structural relationship of the second synchronizing mechanism.
Reference numerals: 1. a base; 101. a via hole; 102. a conical surface; 2. a fixed end; 3. a movable end; 4. a cylinder; 5. a plugging block; 6. a steel pipe; 7. a reservoir; 8. a water pump pressurizing device; 9. a support frame; 10. a bracket; 11. a guide rail; 12. a roller; 13. a rack; 14. a motor; 15. a gear; 16. a gas source; 17. supporting a pipe; 1701. a fixed portion; 1702. a turning part; 18. a baffle plate; 19. a sealing block; 20. a water blocking edge; 21. a base; 2101. a cavity; 22. a nozzle; 23. a first elastic member; 24. a rotating wheel; 25. a stay bar; 26. an air tube; 27. an adapter; 28. an oil cylinder; 29. a supporting plate; 30. a clamping block; 31. a top plate; 32. a slide bar; 33. a connecting rod; 34. a turning arm; 35. a second elastic member.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying examples.
Referring to attached drawings 1 and 2, the steel pipe hydraulic press comprises two bases 1, wherein a fixed end 2 and a movable end 3 are respectively arranged on the two bases 1, the fixed end 2 is fixedly arranged on the base 1 where the fixed end is arranged, an air cylinder 4 is fixedly arranged on the base 1 where the movable end 3 is arranged, the extending end of the air cylinder 4 penetrates through the base 1 where the air cylinder is arranged to be fixedly connected with the movable end 3, plugging blocks 5 are fixedly arranged on the opposite side walls of the fixed end 2 and the movable end 3, and the plugging blocks 5 are made of rubber materials; the fixed end 2 and the movable end 3 are clamped with a steel pipe 6, a reservoir 7 is fixed on the ground below the steel pipe 6, a water pump pressurizing device 8 is communicated at a position, close to the movable end 3, on one side of the reservoir 7 in the width direction, and the water pump pressurizing device 8 is communicated with the movable end 3; two supporting frames 9 are arranged in the reservoir 7 at intervals along the length direction of the reservoir, and the upper surfaces of the two supporting frames 9 are abutted against the steel pipe 6.
Referring to the attached drawings 1 and 3, a bracket 10 is arranged on one side of the bottom surface of the fixed end 2, which is far away from the movable end 3, in a sliding manner along the axial direction of the steel pipe 6, a driving mechanism for driving the bracket 10 to move is arranged on the bracket 10, the driving mechanism comprises two guide rails 11 arranged on the bottom surface along the length direction of the steel pipe 6, four rollers 12 arranged on the lower surface of the bracket 10 in a sliding manner along the two guide rails 11 are rotatably arranged, a rack 13 is fixed on the bottom surface between the two guide rails 11, a motor 14 is fixed on one side of the bracket 10 in the length direction, and a gear 15 engaged with the rack 13 is.
Referring to fig. 2 and 4, an air source 16 is fixed on the upper portion of the bracket 10, a support tube 17 is arranged on the air source 16, a through hole 101 penetrates through the base 1 where the fixed end 2 is located along the circumferential axis direction of the steel tube 6, the axis of the through hole 101 is overlapped with the axis of the steel tube 6, and a conical surface 102 is formed at one end, close to the steel tube 6, of the through hole 101 along the axis direction; the supporting tube 17 comprises a fixing part 1701 and an overturning part 1702, wherein the fixing part 1701 is fixedly arranged on one side of the air source 16 close to the base 1 in the length direction of the bracket 10, one end of the fixing part 1701 far away from the air source 16 is hinged with the overturning part 1702, the overturning part 1702 penetrates through the through hole 101 and is fixedly provided with the baffle 18, one side of the baffle 18 close to the supporting tube 17 is fixedly provided with a sealing block 19, and the sealing block 19 is made of rubber materials; the shape of the sealing block 19 is matched with the conical surface 102 in an embedding manner, two water blocking ribs 20 are formed on the matching surface of the sealing block 19 and the conical surface 102, and the water blocking ribs 20 are of a circular ring-shaped structure.
A base 21 is rotatably connected to the turning part 1702, a cylindrical cavity 2101 is formed in the base 21, a plurality of nozzles 22 facing the baffle 18 are hinged to the outer circular surface of the base 21, the nozzles 22 are uniformly arranged around the axial direction of the base 21 at intervals, a first elastic part 23 is fixedly connected between the middle part of each nozzle 22 and the base 21, and the first elastic part 23 is made of a spring; each nozzle 22 communicates with the cavity 2101 along its length on the side near the hinge point; the nozzle 22 is provided with rotating wheels 24 along one side of the length direction far away from the hinged point, the rotating direction of each rotating wheel 24 forms an included angle with the axis direction of the steel pipe 6, when the steel pipe is in work, the support pipe 17 drives each nozzle 22 to move in the steel pipe 6, each rotating wheel 24 is abutted against the inner wall of the steel pipe 6, and as the rotating direction of each rotating wheel 24 and the axis direction of the steel pipe 6 form an included angle, each rotating wheel 24 can drive each nozzle 22 to rotate around the axis direction of the steel pipe 6; a stay 25 abutting against the turning portion 1702 is fixed to the center of each nozzle 22.
An air pipe 26 is arranged inside the bracing tube 17, one end of the air pipe 26, which is close to the base 21, is communicated with an adapter 27, the adapter 27 is in threaded connection with the base 21 and is communicated with a cavity 2101 inside the base 21, and one end of the air pipe 26, which is far away from the adapter 27 along the length direction, is communicated with the air source 16.
Referring to fig. 2 and 5, an oil cylinder 28 is fixed in the reservoir 7 along one side of the length direction close to the fixed end 2, a supporting plate 29 is fixed at the extending end of the oil cylinder 28, clamping blocks 30 are arranged on both sides of the supporting plate 29 in the length direction, a top plate 31 is arranged on the supporting plate 29, a synchronizing mechanism for driving the two clamping blocks 30 to clamp synchronously is arranged between the top plate 31 and the clamping blocks 30, the synchronizing mechanism comprises sliding rods 32 fixed on both sides of the length direction of the lower surface of the top plate 31, the two sliding rods 32 are arranged on the supporting plate 29 in a sliding manner along the height direction of the supporting plate 29, connecting rods 33 are hinged at the lower ends of the two sliding rods 32, turnover arms 34 are arranged on both sides of the length direction of the supporting plate 29, the turnover arms 34 are of an L; one ends of the two connecting rods 33, which are far away from the sliding rod 32 along the length direction, are respectively hinged with the lower ends of the two turnover arms 34; a second elastic member 35 is fixedly connected between the lower part of the turning arm 34 and the lower surface of the supporting plate 29, the second elastic member 35 is made of a spring, and the two clamping blocks 30 are respectively and fixedly arranged at the upper ends of the two turning arms 34.
When the oil cylinder 28 is supported, the top plate 31 abuts against the outer circle of the steel pipe 6 and moves downwards under the action of gravity of the steel pipe 6, the two slide rods 32 further drive the two connecting rods 33 to move, the two connecting rods 33 drive the upper parts of the two turnover arms 34 to approach the steel pipe 6, and the two clamping blocks 30 are further driven to clamp the steel pipe 6, so that the clamping operation of the steel pipe 6 is realized.
The working principle of the embodiment is as follows: during pressurizing, the steel pipe 6 is clamped and arranged at the fixed end 2 and the movable end 3, the blocking blocks 5 seal two ends of the steel pipe 6, the baffle plate and the sealing blocks 19 seal the via hole 101, and the water pump pressurizing device 8 performs pressurizing test on the steel pipe 6; after the pressing is finished, the oil cylinder 28 extends out, the two clamping blocks 30 are driven by the synchronous mechanism to clamp the steel pipe 6, and the steel pipe 6 is driven to incline by a certain angle; the bracket 10 is driven by the driving mechanism to be close to the fixed end 2, further drives the fixed part 1701 and the turnover part 1702 of the supporting pipe 17 to extend into the steel pipe 6, the inclination angle of the turnover part 1702 is consistent with that of the steel pipe 6, the rotating wheels 24 on the nozzles 22 are abutted against the inner wall of the steel pipe 6 under the action of the first elastic element 23, the nozzles 22 are driven to rotate and advance in the steel pipe 6, and meanwhile, the air source 16 conveys compressed air to the nozzles 22 through the air pipes 26, so that the water stain cleaning work in the steel pipe 6 is completed; after the water stain is cleaned, the bracket 10 is driven by the driving mechanism to be away from the fixed end 2, so as to drive each nozzle 22 to retract into the via hole 101, and meanwhile, the baffle plate 18 and the sealing block 19 seal the via hole 101; by the mode, the inside of the steel pipe 6 is kept dry after the pressing test is finished, and the quality of the steel pipe 6 is ensured not to be reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a steel pipe hydraulic press, includes two bases (1), two be provided with stiff end (2) and expansion end (3) on base (1) respectively, expansion end (3) intercommunication is provided with water pump pressure device (8), all be provided with plugging block (5), its characterized in that on stiff end (2) and expansion end (3): the utility model discloses a portable multifunctional trolley, including stiff end (2), movable end (3) keep away from one side and slide and be provided with bracket (10), be provided with the actuating mechanism who drives its removal on bracket (10), be fixed with air supply (16) on bracket (10), air supply (16) one side is provided with props pipe (17), the shaping has via hole (101) on base (1) of stiff end (2) place, prop pipe (17) keep away from one end on the dolly and pass via hole (101) and be fixed with baffle (18), one side that baffle (18) are close to props pipe (17) is fixed with sealed block (19), be provided with base (21) on propping pipe (17), base (21) inside shaping has cavity (2101), articulated on base (21) are provided with a plurality of nozzle (22) towards baffle (18), each be fixedly connected with first elastic component (23) between nozzle (22) and base (21), each nozzle (22) is communicated with the cavity (2101), an air pipe (26) is arranged in the bracing pipe (17), one end, close to the base (21), of the air pipe (26) is communicated with an adapter (27), the adapter (27) is communicated with the cavity (2101), and one end, far away from the base (21), of the air pipe (26) is communicated with the air source (16).
2. The steel pipe hydraulic press according to claim 1, characterized in that: all rotate on each nozzle (22) and be provided with runner (24), each the direction of rotation of runner (24) is the contained angle setting with steel pipe (6) axis direction, base (21) rotate and set up on prop pipe (17), trachea (26) are connected with adapter (27) rotation.
3. The steel pipe hydraulic press according to claim 2, characterized in that: one side that steel pipe (6) lower part is close to stiff end (2) is provided with hydro-cylinder (28), hydro-cylinder (28) are stretched out the end and are fixed with fagging (29), fagging (29) length direction both sides all are provided with clamp splice (30), be provided with roof (31) on fagging (29), be provided with the lazytongs of two clamp splices of drive (30) synchronous clamping between roof (31) and clamp splice (30).
4. A steel pipe hydraulic press as claimed in claim 3, characterised in that: the synchronizing mechanism comprises two sliding rods (32) and two sliding rods (32) which are fixedly arranged on the lower surface of a top plate (31) and two sliding rods (32) which are arranged on a supporting plate (29) in a sliding mode, the lower ends of the sliding rods (32) are provided with connecting rods (33) in an articulated mode, the two ends of the length direction of the supporting plate (29) are provided with turnover arms (34) in an articulated mode, the connecting rods (33) are hinged to the lower ends of the turnover arms (34) respectively, and second elastic pieces (35) are fixedly connected between the lower portions of the turnover arms (34) and the lower surface of the supporting plate (29) and two clamping blocks (30) are fixedly arranged on the upper portions of the two turnover arms (34) respectively.
5. The steel pipe hydraulic press according to claim 4, characterized in that: the supporting tube (17) comprises a fixing part (1701), the fixing part (1701) is fixedly arranged on the air source (16), one end, far away from the bracket (10), of the fixing part (1701) is provided with a turnover part (1702) in an articulated mode, and the base (21) is rotatably arranged on the turnover part (1702).
6. The steel pipe hydraulic press according to claim 5, characterized in that: a stay (25) abutting against a part of the turning part (1702) is fixed to one end of each nozzle (22) away from the base (21).
7. The steel pipe hydraulic press according to claim 1, characterized in that: the one end shaping that via hole (101) are close to baffle (18) has conical surface (102), cooperation is established with conical surface (102) to sealed piece (19), the shaping has a plurality of arris (20) that block water on sealed piece (19).
8. The steel pipe hydraulic press according to claim 1, characterized in that: and a reservoir (7) is fixed on the ground below the steel pipe (6), and an inlet of the water pump pressurizing device (8) is communicated with the reservoir (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411573.5A CN112692005A (en) | 2020-12-04 | 2020-12-04 | Steel pipe hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411573.5A CN112692005A (en) | 2020-12-04 | 2020-12-04 | Steel pipe hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112692005A true CN112692005A (en) | 2021-04-23 |
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ID=75506190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011411573.5A Pending CN112692005A (en) | 2020-12-04 | 2020-12-04 | Steel pipe hydraulic press |
Country Status (1)
| Country | Link |
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| CN (1) | CN112692005A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588441A (en) * | 2021-09-28 | 2021-11-02 | 南通三锐化工装备有限公司 | Stepless adaptation and rotation device for pipe length of hydrostatic testing machine |
| CN113941569A (en) * | 2021-09-27 | 2022-01-18 | 朱淮兵 | Pipe cleaning apparatus and method of using the same |
| CN114192518A (en) * | 2021-12-18 | 2022-03-18 | 中山市汇创精密科技有限公司 | Automatic ash removing device for corrugated pipe |
| CN118491982A (en) * | 2024-07-18 | 2024-08-16 | 江苏鑫常特材有限公司 | Pipe wall synchronous processing device for austenitic seamless steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113941569A (en) * | 2021-09-27 | 2022-01-18 | 朱淮兵 | Pipe cleaning apparatus and method of using the same |
| CN113588441A (en) * | 2021-09-28 | 2021-11-02 | 南通三锐化工装备有限公司 | Stepless adaptation and rotation device for pipe length of hydrostatic testing machine |
| CN113588441B (en) * | 2021-09-28 | 2021-11-30 | 南通三锐化工装备有限公司 | Stepless adaptation and rotation device for pipe length of hydrostatic testing machine |
| CN114192518A (en) * | 2021-12-18 | 2022-03-18 | 中山市汇创精密科技有限公司 | Automatic ash removing device for corrugated pipe |
| CN118491982A (en) * | 2024-07-18 | 2024-08-16 | 江苏鑫常特材有限公司 | Pipe wall synchronous processing device for austenitic seamless steel pipe |
| CN118491982B (en) * | 2024-07-18 | 2024-09-17 | 江苏鑫常特材有限公司 | Pipe wall synchronous processing device for austenitic seamless steel pipe |
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