CN109894477A - A kind of high precision steel tube equipment of hot rolling - Google Patents
A kind of high precision steel tube equipment of hot rolling Download PDFInfo
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- CN109894477A CN109894477A CN201910192104.XA CN201910192104A CN109894477A CN 109894477 A CN109894477 A CN 109894477A CN 201910192104 A CN201910192104 A CN 201910192104A CN 109894477 A CN109894477 A CN 109894477A
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- compression roller
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Abstract
The invention belongs to steel pipe shaping technique field, specifically a kind of high precision steel tube equipment of hot rolling, including rack, controller and control panel；First compression roller both ends are socketed with fixed disk and the second compression roller；Second compression roller is slidably socketed in the first press roll surface；The second twin shaft cylinder is fixed between second compression roller and adjacent fixed disk；Pressure inductor and distance-sensor are equipped between first press roll surface and two adjacent second compression rollers of vertical direction；The present invention controls the first twin shaft cylinder by pressure inductor and distance-sensor and the second twin shaft cylinder realizes the movement of the first compression roller and the second compression roller, so as to adjust the accuracy of steel pipe shaping, the present invention is suitable for the steel pipe shaping of various criterion simultaneously, biggish steel pipe can carry out step-by-step processing when can not carry out disposable shaping, gradually shaping to ideal form, structure is simple and convenient to operate.
Description
Technical field
The invention belongs to steel pipe shaping technique field, specifically a kind of high precision steel tube equipment of hot rolling.
Background technique
The development of steel pipe's production technology starts from the manufacturing rise of bicycle, the exploitation of 19th century younger oil, twice
The manufacture of naval vessel, boiler, aircraft during world war, the manufacture of apparatus of thermo-electric power boiler after World War II, the hair of chemical industry
Exhibition and the drilling of petroleum gas and transport etc., all effectively push hair of the Steel Tube Industries in kind, yield and quality
Exhibition, steel pipe are applied not only to trandfer fluid and powdery solid, exchange thermal energy, manufacture machine components and container, it or a kind of economy
Steel.Building structure rack, pillar and machinery mount are manufactured with steel pipe, weight can be mitigated, saves metal 20-40%, and
Batch production mechanized construction can be achieved, steel can be saved, simplify construction by manufacturing highway bridge not only with steel pipe, and can be subtracted significantly
The area of few stopping off, investment reduction and maintenance cost.
The shaping of steel pipe steel pipe in process of production is one of important step, and steel pipe is mainly passed through extruding by steel pipe shaping
So that steel pipe is reached length, width and the height of setting, while guaranteeing to facilitate steel pipe shaping to cuboid at subsequent processing
Reason, saves material simultaneously.
Steel pipe shaping is rotated usually using the module of different in width and height in the prior art, makes steel tube extrusion at setting
Length height and width need steel pipe to reciprocate through repeatedly in extrusion process, wasting manpower and material resources, while steel pipe is reciprocal
It needs to overturn steel pipe in the process, be bent after steel pipe shaping is easy to cause in switching process, increase the degree of difficulty of shaping,
And the Immobility of compression roller, a pair of of compression roller are only applicable to a kind of steel pipe shaping of standard, there are larger when making steel pipe shaping
Use limitation.
Summary of the invention
In order to make up for the deficiencies of the prior art, it solves to need back and forth when steel pipe shaping, wasting manpower and material resources, steel pipe are past
Overturning is carried out during multiple leads to tube bending, increases shaping degree of difficulty and can not be suitable for asking for different steel pipe shapings
Topic, a kind of high precision steel tube equipment of hot rolling proposed by the present invention.
The technical solution adopted by the present invention to solve the technical problems is: a kind of high precision steel tube hot rolling of the present invention
Equipment, including rack, controller and control panel；The control panel is electrically connected with the controller, and is worked for control device；Institute
The design of rack " u "-shaped is stated, and rack both ends are fixed with the first twin shaft cylinder；The both ends of the first twin shaft cylinder are fixed with
Fixed link；First compression roller is rotatably connected between horizontal two opposite fixed links；Two fixed links in left side
Motor has been respectively fixedly connected in surface, and the shaft of motor passes through the left end that fixed link is fixed on the first compression roller；First compression roller
Both ends are socketed with fixed disk and the second compression roller；Second compression roller is located between two fixed disks；Described second squeezes
Roller is slidably socketed in the first press roll surface, and fixed disk is fixedly sheathed in the first press roll surface；Second compression roller and phase
The second twin shaft cylinder is fixed between adjacent fixed disk；Uniformly extraneous gas source connects for the first twin shaft cylinder and the second twin shaft cylinder
It is logical, and be electrically connected with the controller；When work, the flexible of the first twin shaft cylinder and the second twin shaft cylinder is controlled by controller, from
And the movement of the first compression roller and the second compression roller is controlled, to control the width after steel pipe shaping, height and length, simultaneously
Controller can control the rotating forward and reversion of motor, when biggish steel pipe can not carry out that motor can be passed through when disposable whole forms function
Positive and negative rotation realize the positive and negative rotation of the first compression roller and the second compression roller, realize the repetition shaping of steel pipe, and repeat reforming process
In, the first compression roller and the second compression roller are controlled by controller and are moved, and realize the gradually shaping of steel pipe, final shaping to ideal
Shaping uneven thorough problem when form, shaping gradually can effectively prevent steel pipe disposable shaping, while first can be prevented
Compression roller and the second compression roller stress is excessive causes to damage.
Preferably, pressure is equipped between first press roll surface and two adjacent second compression rollers of vertical direction
Power inductor and distance-sensor；The pressure inductor and distance-sensor are electrically connected with the controller；When work, by away from
Moving distance from inductor induction the first compression roller and the second compression roller, when the first compression roller and the second compression roller it is mobile away from
When from the setting value for being greater than control panel input, pressure inductor is fed back to the first compression roller of control and the second compression roller pair
The pressure of steel pipe, when the moving distance of the first compression roller and the second compression roller is less than the setting value of control panel input, distance
Inductor feeds back to pressure inductor, improves the first compression roller and the second compression roller to the pressure of steel pipe, whole so as to adjust steel pipe
Accuracy when shape realizes the intelligent shaping of steel pipe, guarantees the accuracy of steel pipe shaping.
Preferably, top the second press roll surface fixing sleeve is connected to the first extrusion ring；Lower section second compression roller
Surface fixing sleeve is connected to the second extrusion ring；The first groove is offered in first extrusion ring, the second extrusion ring can penetrate first
In groove；When work, when the first compression roller is opposite and is moved away from, the second extrusion ring is slided in the first extrusion ring, is played good
Good heat insulating function prevents high temperature when steel pipe shaping from influencing the work of pressure sensor and range sensor, while first squeezes
Pressure ring and the second extrusion ring can prevent tube material when steel pipe shaping from entering gap between the second compression roller, and shaping is caused to fail,
Waste material.
Preferably, first extrusion ring is equipped with close to the side side of fixed disk and is evenly arranged distance-sensor, away from
It is electrically connected with the controller from inductor, while controller is electrically connected with alarm；When work, in steel pipe reforming process, by more
The data that a distance-sensor provides, whether consistent, controller when inconsistent if analyzing distance between two the second compression rollers up and down
Control alarm equipment alarm, apparatus for examination and repair, while can be convex by being formed between the first extrusion ring of eye-observation and the second extrusion ring
It whether equal plays size, the first compression roller and the second compression roller run-off the straight is prevented by double insurance, steel pipe shaping is caused to be lost
It loses, can lead to the damage of device when serious.
Preferably, the second compression roller opposite side side offers the second groove of circular ring shape；Described second is recessed
The first spring being evenly arranged is equipped in slot；First spring be fixed on the first press roll surface and the second groove inner wall it
Between, and two adjacent the first springs are in contact with each other setting；Sliding is provided with the first slide plate in second groove；Described first
The design of slide plate circular ring shape, and the first sled surface cambered surface designs, and steel pipe can be made more easily to enter between the first slide plate, when initial
First slide plate contacts the setting of the first spring surface, the first spring be contracted to completely can not deformation when, with second in the middle part of the first slide plate
Press roll surface is parallel；When work, when steel pipe is inserted into progress shaping between the first compression roller and the second compression roller, inclined-plane setting
First slide plate can prevent steel pipe that can not be inserted into, can since the second groove can be such that the second compression roller interior air-flow flows in reforming process
Effectively cool down to the second compression roller, enhances the service life of the second compression roller.
Preferably, second compression roller offers the cavity being evenly arranged close to the side side of fixed disk；The sky
Chamber is using the first compression roller as center of circle circumference；The second slide plate is slidably connected in the cavity；Second slide plate is close to
Second spring is fixed between the side side of one compression roller and cavity inner wall；Empty cavity space connection above second slide plate
Second groove and the external world；When work, during the rotating and reverse of the second compression roller, pass through centrifugal force suffered by the second slide plate and
The effect of two spring tensions moves up and down the second slide plate, to accelerate the flowing of the second groove interior air-flow, while making the second groove
Interior air-flow and air exchange cool down to the second compression roller and extrusion ring, improve service using life.
Beneficial effects of the present invention are as follows:
1. a kind of high precision steel tube equipment of hot rolling of the present invention passes through the first twin shaft cylinder of setting and the second twin shaft gas
Cylinder controls the flexible of the first twin shaft cylinder and the second twin shaft cylinder by controller, so that the first compression roller of control and second squeezes
The movement of pressure roller makes device be suitable for the steel pipe shaping of various criterion, while can carry out shaping to steel pipe step by step, prevents steel pipe whole
Shape is halfway while damaging to device.
2. a kind of high precision steel tube equipment of hot rolling of the present invention, by the way that pressure inductor and distance-sensor is arranged,
By the feedback between pressure inductor and distance-sensor, accuracy when steel pipe shaping is improved, while steel pipe presence can not
Alarm can be fed back to by distance-sensor and pressure inductor when shaping, device is adjusted, prevent the waste of material.
3. a kind of high precision steel tube equipment of hot rolling of the present invention, by setting cavity, the first spring, the second groove,
Second spring and the second slide plate can be such that the second groove interior air-flow flows by the effect of centrifugal force and second spring, squeeze to second
Pressure roller is effectively cooled down, to improve the service life of device.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is main view of the invention；
Fig. 2 is the cross-sectional view of A-A in Fig. 1；
Fig. 3 is the cross-sectional view of B-B in Fig. 1；
In figure: rack 1, the first twin shaft cylinder 11, fixed link 12, the first compression roller 13, motor 14, fixed disk 15, second
Compression roller 16, the second twin shaft cylinder 17, the first extrusion ring 2, the second extrusion ring 21, the first groove 22, the second groove 3, the first bullet
Spring 31, the first slide plate 32, cavity 33, the second slide plate 34, second spring 35.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Figure 1 to Figure 3, a kind of high precision steel tube equipment of hot rolling of the present invention, including rack 1, controller and
Control panel；The control panel is electrically connected with the controller, and is worked for control device；1 " u "-shaped of the rack design, and machine
1 both ends of frame are fixed with the first twin shaft cylinder 11；The both ends of the first twin shaft cylinder 11 are fixed with fixed link 12；Horizontal phase
Pair two fixed links 12 between be rotatably connected to first compression roller 13；12 surface of the fixed link difference of two of left side
It is fixed with motor 14, the shaft of motor 14 passes through the left end that fixed link 12 is fixed on the first compression roller 13；First compression roller
13 both ends are socketed with fixed disk 15 and the second compression roller 16；Second compression roller 16 is located between two fixed disks 15；Institute
It states the second compression roller 16 to be slidably socketed in 13 surface of the first compression roller, fixed disk 15 is fixedly sheathed in 13 surface of the first compression roller；
The second twin shaft cylinder 17 is fixed between second compression roller 16 and adjacent fixed disk 15；First twin shaft cylinder, 11 He
The uniformly extraneous gas source connection of second twin shaft cylinder 17, and be electrically connected with the controller；When work, the first twin shaft is controlled by controller
Cylinder 11 and the second twin shaft cylinder 17 it is flexible, thus the movement of control the first compression roller 13 and the second compression roller 16, to control
Width, height and length after steel pipe shaping processed, while controller can control the rotating forward and reversion of motor 14, when biggish
Steel pipe can not carry out realizing the first compression roller 13 and the second compression roller by the positive and negative rotation of motor 14 when disposable whole forms function
16 positive and negative rotation realizes the repetition shaping of steel pipe, and repeats in reforming process that the first compression roller 13 and the second compression roller 16 pass through
Controller control movement, realizes that the gradually shaping of steel pipe, final shaping to ideal form, shaping gradually can effectively prevent steel pipe
Shaping uneven thorough problem when disposable shaping, while the first compression roller 13 and 16 stress of the second compression roller can be prevented excessive
Cause to damage.
As one embodiment of the present invention, 13 surface of the first compression roller and vertical direction two adjacent
Pressure inductor and distance-sensor are equipped between two compression rollers 16；The pressure inductor and distance-sensor with control
Device electrical connection；When work, the moving distance of the first compression roller 13 and the second compression roller 16 is incuded by distance-sensor, when first
When the mobile distance of compression roller 13 and the second compression roller 16 is greater than the setting value of control panel input, feed back to pressure inductor from
And the first compression roller 13 and the second compression roller 16 are controlled to the pressure of steel pipe, when the shifting of the first compression roller 13 and the second compression roller 16
When dynamic distance is less than the setting value of control panel input, distance-sensor feeds back to pressure inductor, improves the first compression roller 13
With the second compression roller 16 to the pressure of steel pipe, accuracy when so as to adjust steel pipe shaping realizes the intelligent shaping of steel pipe, guarantees
The accuracy of steel pipe shaping.
As one embodiment of the present invention, the top 16 surface fixing sleeve of the second compression roller is connected to the first extrusion ring
2；The lower section 16 surface fixing sleeve of the second compression roller is connected to the second extrusion ring 21；First is offered in first extrusion ring 2
Groove 22, the second extrusion ring 21 can penetrate in the first groove 22；When work, when the first compression roller 13 is opposite and is moved away from, the
Two extrusion rings 21 are slided in the first extrusion ring 2, play good heat insulating function, prevent high temperature when steel pipe shaping from influencing pressure
The work of sensor and range sensor, while steel tubing when the first extrusion ring 2 and the second extrusion ring 21 can prevent steel pipe shaping
Material enters gap between the second compression roller 16, and shaping is caused to fail, and wastes material.
As one embodiment of the present invention, first extrusion ring 2 is equipped with close to the side side of fixed disk 15
It is evenly arranged distance-sensor, distance-sensor is electrically connected with the controller, while controller is electrically connected with alarm；When work,
In steel pipe reforming process, the data provided by multiple distance-sensors analyze distance between two the second compression rollers 16 up and down
Whether consistent, controller controls alarm equipment alarm, apparatus for examination and repair when inconsistent, while can pass through the first extrusion ring of eye-observation 2
And second the raised size that is formed between extrusion ring 21 it is whether equal, prevent the first compression roller 13 and second from squeezing by double insurance
16 run-off the straight of pressure roller causes steel pipe shaping to fail, can lead to the damage of device when serious.
As one embodiment of the present invention, the 16 opposite side side of the second compression roller offers circular ring shape
Second groove 3；The first spring 31 being evenly arranged is equipped in second groove 3；First spring 31 is fixed on first and squeezes
Between 3 inner wall of 13 surface of pressure roller and the second groove, and two adjacent the first springs 31 are in contact with each other setting；Second groove
Sliding is provided with the first slide plate 32 in 3；First slide plate, the 32 circular ring shape design, and 32 surface cambered surface of the first slide plate designs, it can
Enter steel pipe more easily between the first slide plate 32, the first slide plate 32 contact 31 surface of the first spring setting when initial, first
Spring 31 be contracted to completely can not deformation when, the middle part of the first slide plate 32 is parallel with 16 surface of the second compression roller；When work, steel pipe is inserted
When entering to carry out shaping between the first compression roller 13 and the second compression roller 16, the first slide plate 32 of inclined-plane setting can prevent steel pipe can not
Insertion, since the second groove 3 can be such that 16 interior air-flow of the second compression roller flows in reforming process, can effectively to the second compression roller 16 into
Row cooling, enhances the service life of the second compression roller 16.
As one embodiment of the present invention, second compression roller 16 is offered close to the side side of fixed disk 15
The cavity 33 being evenly arranged；The cavity 33 is with the first compression roller 13 for center of circle circumference；It is slidably connected in the cavity 33
There is the second slide plate 34；Second slide plate 34 is fixed between 33 inner wall of side side and cavity of the first compression roller 13
Two springs 35；Space is connected to the second groove 3 and the external world in second slide plate, the 34 top cavity 33；When work, the second compression roller
During 16 rotate and reverse, the second slide plate is made by the effect of 35 pulling force of centrifugal force suffered by the second slide plate 34 and second spring
34 move up and down, to accelerate the flowing of 3 interior air-flow of the second groove, while making 3 interior air-flow of the second groove and air exchange, to second
Compression roller 16 and extrusion ring cool down, and improve service using life.
When work, the flexible of the first twin shaft cylinder 11 and the second twin shaft cylinder 17 is controlled by controller, thus control the
The movement of one compression roller 13 and the second compression roller 16 controls simultaneously to control the width after steel pipe shaping, height and length
Device can control the rotating forward and reversion of motor 14, can be by motor 14 when biggish steel pipe can not carry out disposable whole formation function
Positive and negative rotation realize the positive and negative rotation of the first compression roller 13 and the second compression roller 16, realize the repetition shaping of steel pipe, and repeat shaping
In the process, the first compression roller 13 and the second compression roller 16 are controlled by controller moves, and realizes the gradually shaping of steel pipe, final whole
Shape is to ideal form, in reforming process, by distance-sensor incude the movement of the first compression roller 13 and the second compression roller 16 away from
From feeding back to pressure when the mobile distance of the first compression roller 13 and the second compression roller 16 is greater than the setting value of control panel input
Power inductor is to control the first compression roller 13 and the second compression roller 16 to the pressure of steel pipe, when the first compression roller 13 and second squeezes
When the moving distance of pressure roller 16 is less than the setting value of control panel input, distance-sensor feeds back to pressure inductor, improves the
One compression roller 13 and the second compression roller 16 are to the pressure of steel pipe, accuracy when so as to adjust steel pipe shaping, the first compression roller 13
It is opposite that the second extrusion ring 21 is slided in the first extrusion ring 2 with when being moved away from, meanwhile, it is provided by multiple distance-sensors
Data, analyze up and down whether distance consistent between two the second compression rollers 16, controller controls alarm equipment alarm when inconsistent,
Apparatus for examination and repair, at the same can by the raised size that is formed between eye-observation the first extrusion ring 2 and the second extrusion ring 21 whether phase
Deng preventing 16 run-off the straight of the first compression roller 13 and the second compression roller, during the rotating and reverse of the second compression roller 16, pass through
The effect of 35 pulling force of centrifugal force suffered by second slide plate 34 and second spring moves up and down the second slide plate 34, so that it is recessed to accelerate second
The flowing of 3 interior air-flow of slot, while making 3 interior air-flow of the second groove and air exchange.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of high precision steel tube equipment of hot rolling, it is characterised in that: including rack (1), controller and control panel；The control
Device is electrically connected with control panel, is worked for control device；Rack (1) the " u "-shaped design, and rack (1) both ends are connected
There is the first twin shaft cylinder (11)；The both ends of the first twin shaft cylinder (11) are fixed with fixed link (12)；Horizontal opposite two
First compression roller (13) is rotatably connected between a fixed link (12)；Fixed link (12) the surface difference of two of left side
It is fixed with motor (14), the shaft of motor (14) passes through the left end that fixed link (12) are fixed on the first compression roller (13)；Described
One compression roller (13) both ends are socketed with fixed disk (15) and the second compression roller (16)；Second compression roller (16) is located at two
Between fixed disk (15)；Second compression roller (16) is slidably socketed in the first compression roller (13) surface, and fixed disk (15) is fixed
It is socketed on the first compression roller (13) surface；Second pair is fixed between second compression roller (16) and adjacent fixed disk (15)
Axis cylinder (17)；Uniformly extraneous gas source is connected to the first twin shaft cylinder (11) with the second twin shaft cylinder (17), and and controller
Electrical connection can control stretching for the first twin shaft cylinder (11) and the second twin shaft cylinder (17), to control steel pipe by controller
Width, height and length after shaping, while the rotating forward and reversion of controllable motor (14) make biggish steel pipe can not be into
Step-by-step processing is carried out when the disposable shaping of row, gradually shaping to ideal form.
2. a kind of high precision steel tube equipment of hot rolling according to claim 1, it is characterised in that: first compression roller (13)
Pressure inductor and distance-sensor are equipped between surface and two adjacent second compression rollers (16) of vertical direction；It is described
Pressure inductor and distance-sensor are electrically connected with the controller, and can control first pair by pressure inductor and distance-sensor
Axis cylinder (11) and the second twin shaft cylinder (17) realize the movement of the first compression roller (13) and the second compression roller (16), so as to adjust
The accuracy of steel pipe shaping.
3. a kind of high precision steel tube equipment of hot rolling according to claim 2, it is characterised in that: top second compression roller
(16) surface fixing sleeve is connected to the first extrusion ring (2)；Lower section the second compression roller (16) surface fixing sleeve is connected to the second extruding
Ring (21)；It is offered the first groove (22) in first extrusion ring (2), the second extrusion ring (21) can penetrate the first groove (22)
It is interior, steel when preventing high temperature when steel pipe shaping from influencing the work of pressure sensor and range sensor, while preventing steel pipe shaping
Tube material enters gap between the second compression roller (16), and shaping is caused to fail.
4. a kind of high precision steel tube equipment of hot rolling according to claim 3, it is characterised in that: first extrusion ring (2)
It is equipped with close to the side side of fixed disk (15) and is evenly arranged distance-sensor, distance-sensor is electrically connected with the controller, together
When controller be electrically connected with alarm, the data provided by distance-sensor, analysis up and down two the second compression rollers (16) it
Between distance it is whether consistent, and between observation the first extrusion ring (2) and the second extrusion ring (21) the raised size that is formed whether one
It causes, inconsistent alarm device can carry out early warning prompting, prevent the first compression roller (13) and the second compression roller (16) run-off the straight, lead
Cause steel pipe shaping failure.
5. a kind of high precision steel tube equipment of hot rolling according to claim 1, it is characterised in that: second compression roller (16)
Opposite side side offers the second groove (3) of circular ring shape；The first bullet being evenly arranged is equipped in second groove (3)
Spring (31)；First spring (31) is fixed between the first compression roller (13) surface and the second groove (3) inner wall, and adjacent
Two the first springs (31) are in contact with each other setting；Sliding is provided with the first slide plate (32) in second groove (3)；Described first
The design of slide plate (32) circular ring shape, and the first slide plate (32) surface cambered surface designs, and steel pipe can be made more easily to enter the first slide plate
(32) between, first slide plate (32) contact the first spring (31) surface setting, the first spring (31) are contracted to nothing completely when initial
It is parallel with the second compression roller (16) surface in the middle part of the first slide plate (32) when method deformation, effectively the second compression roller (16) can be carried out
Cooling enhances the service life of the second compression roller (16).
6. a kind of high precision steel tube equipment of hot rolling according to claim 5, it is characterised in that: second compression roller (16)
Side side close to fixed disk (15) offers the cavity (33) being evenly arranged；The cavity (33) is with the first compression roller (13)
For center of circle circumference；The second slide plate (34) are slidably connected in the cavity (33)；Second slide plate (34) is close to first
Second spring (35) are fixed between the side side and cavity (33) inner wall of compression roller (13)；Above second slide plate (34)
The interior space connection the second groove (3) of cavity (33) and the external world, make the second slide plate by the effect of centrifugal force and second spring (35)
(34) it moves up and down, cools down to the second compression roller (16) and extrusion ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192104.XA CN109894477B (en) | 2019-03-14 | 2019-03-14 | High-precision steel pipe hot rolling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192104.XA CN109894477B (en) | 2019-03-14 | 2019-03-14 | High-precision steel pipe hot rolling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109894477A true CN109894477A (en) | 2019-06-18 |
| CN109894477B CN109894477B (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910192104.XA Active CN109894477B (en) | 2019-03-14 | 2019-03-14 | High-precision steel pipe hot rolling equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802129A (en) * | 2019-11-13 | 2020-02-18 | 梁良良 | Special steel pipe precision shaping machine |
| CN112790913A (en) * | 2020-12-30 | 2021-05-14 | 广州市智勋电子商务有限公司 | Edge sealing device for sanitary towel |
| CN112916620A (en) * | 2021-01-14 | 2021-06-08 | 王克宇 | Forging process of GCr15 roller sleeve |
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| CN207204920U (en) * | 2016-12-13 | 2018-04-10 | 新疆八钢钢管有限责任公司 | Improved welded pipe units square tube head roll forming lower rolls |
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| CN110802129A (en) * | 2019-11-13 | 2020-02-18 | 梁良良 | Special steel pipe precision shaping machine |
| CN112790913A (en) * | 2020-12-30 | 2021-05-14 | 广州市智勋电子商务有限公司 | Edge sealing device for sanitary towel |
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| CN112916620B (en) * | 2021-01-14 | 2022-08-09 | 山东莱锻机械股份有限公司 | Forging process of GCr15 roller sleeve |
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