CN110238308A - A kind of seamless pressurized tank rolling device and manufacturing method - Google Patents
A kind of seamless pressurized tank rolling device and manufacturing method Download PDFInfo
- Publication number
- CN110238308A CN110238308A CN201910594233.1A CN201910594233A CN110238308A CN 110238308 A CN110238308 A CN 110238308A CN 201910594233 A CN201910594233 A CN 201910594233A CN 110238308 A CN110238308 A CN 110238308A
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- steel pipe
- compression roller
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- 238000005096 rolling process Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 114
- 239000010959 steel Substances 0.000 claims abstract description 114
- 230000006835 compression Effects 0.000 claims abstract description 91
- 238000007906 compression Methods 0.000 claims abstract description 91
- 230000003028 elevating effect Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims abstract 2
- 238000009987 spinning Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010036 direct spinning Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a kind of seamless pressurized tank rolling device and production methods.It can be set with the drive roll of seamless steel pipe and the compression roller with drive roll cooperation, it further include the elevating mechanism that can make drive roll and compression roller opposing compression, elevating mechanism makes drive roll and compression roller opposing compression to pressurize to the inner wall of seamless steel pipe, drive roll connect with power device and can rotate under the driving of power device, and the seamless steel pipe can be such that its wall thickness reduces under the drive of drive roll and by the synchronous rotary continuous extrusion of compression roller.It has the following advantages: integral strength is very high, its metal material tissue even compact, bearing capacity greatly enhances, and pressure-resistant performance is greatly improved, and reduces multiple working procedure, improves processing efficiency and reduce production cost, surface smoothness is high, sequent surface processing is not needed, process is further reduced, improves processing efficiency, end socket processing is carried out without using double-seal head material, reduces loss.
Description
Technical field
The present invention relates to a kind of production technology of pressurized tank, specifically a kind of seamless pressurized tank rolling device and production
Method.
Background technique
Existing pressurized tank is usually all by the can body and hemispheric tank bottom three parts structure of hemispheric tank deck, tubular
At.In the prior art, for the manufacture of pressurized tank, tubular can body is usually all to utilize plate bending machine for steel plate forming and weld
It connects；And hemispheric end is usually that steel is cut out to the shape to form needs, is then suppressed using molding equipment and tool
Molding；Finally, three parts, which are carried out welding, forms entire pressurized tank, existing this tank structure is needed to plurality of steel plates
The processing of multiple working procedure is carried out, not only processing technology is complicated, and waste of material is serious, so that production cost is very high, furthermore,
Various pieces are required to be welded, and make the integral strength of tank body be deteriorated after welding, pressure-resistant performance cannot be effectively ensured, separately
Outside, it after the completion of manufacture, is not only surface-treated, it is also necessary to which the process for increasing the film making detection to weld seam reduces life
While producing efficiency, production cost is further increased.
Summary of the invention
That the technical problem to be solved in the present invention is to provide a kind of production processes is few, material utilization amount is few, production cost is low, pressure-resistant
Performance height and weldless seamless pressurized tank rolling device and production method.
In order to solve the above-mentioned technical problem, the production method of seamless pressurized tank of the invention, comprising the following steps:
A, using wall thickness for 8-15mm seamless steel pipe as raw material, seamless steel pipe is heated by heating equipment, heating temperature
It is 600-800 DEG C；
B, the seamless steel pipe after heating is sleeved on the drive roll in rolling device, rolling device is made by elevating mechanism
Drive roll and compression roller opposing compression pressurize to the tube wall of seamless steel pipe, meanwhile, make to make drive roll using driving device
It rotates and drives compression roller and seamless steel pipe while rotating, realize the continuous rotation roller to seamless steel pipe tube wall in the process
Pressure, makes the wall thickness of seamless steel pipe reach 4-4.5mm；
C, will be mounted in spinning necking equipment by seamless steel pipe after extruding, starting spinning necking equipment to seamless steel pipe into
The both ends bore of seamless steel pipe is reduced to the inner hole of 50-1500mm by row necking；
D, the seamless steel pipe Jing Guo necking is dismantled from spinning necking equipment.
A kind of seamless pressurized tank rolling device, including can be set with seamless steel pipe drive roll and with drive roll cooperation
Compression roller for being squeezed seamless steel pipe further includes the elevating mechanism that can make drive roll and compression roller opposing compression,
Elevating mechanism makes drive roll and compression roller opposing compression to pressurize to the tube wall of seamless steel pipe, drive roll and power device
It connects and can be rotated under the driving of power device, seamless steel pipe can be under the drive of drive roll and by the same of compression roller
Step rotation lasts extruding reduces its wall thickness.
The length of the compression roller is longer than the length of seamless steel pipe.
The elevating mechanism is lead screw or oil cylinder lifting, and the lead screw or oil cylinder lifting are supported by bracket pacifies
Dress.
The elevating mechanism is mounted on the bearing block of compression roller and compression roller can be driven to go up and down with respect to drive roll.
The compression roller is provided with one, and the two sides of the compression roller are provided with support roller.
The compression roller is provided with two, is equipped with elevating mechanism on an at least compression roller.
The elevating mechanism is mounted on the bearing block of drive roll and drive roll opposing compression roller can be driven to go up and down.
The compression roller is provided with one, and the two sides of the compression roller are provided with support roller.
The compression roller is provided with two.
The present invention has the advantage that
The main body that roll-in forms pressurized tank directly is carried out to the seamless steel pipe after heating using rolling device, utilizes rotation at the same time
Turn necking machine and necking is carried out to the main body both ends of pressurized tank, on the one hand, whole process keeps it whole strong without being welded
Very high, still further aspect is spent, makes its metal material tissue even compact by the pressure can body of roll-forming, bearing capacity is big
Big enhancing, pressure-resistant performance is greatly improved, in another aspect, weldless processing method, also just without to being conventionally present
Welded seam carry out film making detection, reduce multiple working procedure, improve processing efficiency and reduce production cost, there are also a side
Face makes surface smoothness high, does not need sequent surface processing, further reduce work by the pressure can body of roll-forming
Sequence improves processing efficiency, carries out end socket processing without using double-seal head material, reduces loss.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the structural schematic diagram of embodiment two；
Fig. 3 is the structural schematic diagram of pressurized tank made of the present invention；
Fig. 4 is drive roll and compression roller arrangement mode structural schematic diagram in embodiment two；
Fig. 5 is drive roll and compression roller arrangement mode structural schematic diagram in embodiment three.
Specific embodiment
With reference to the accompanying drawings and detailed description, to seamless pressurized tank rolling device of the invention and production method make into
One step is described in detail.
Embodiment one:
The production method of the seamless pressurized tank of the present embodiment, comprising the following steps:
A, with internal diameter for 400 mm, wall thickness 13mm, the 4*26 seamless steel pipe that length is 1680mm is raw material, passes through heating equipment
Seamless steel pipe is heated, heating temperature is 700 DEG C；
B, on the drive roll (the long 2500mm of roller) that the seamless steel pipe after heating is sleeved in rolling device, pass through elevator
Structure makes the drive roll of rolling device and compression roller opposing compression pressurize the (pressure 600 of generation the tube wall of seamless steel pipe
Ton), meanwhile, make to rotate drive roll using driving device and drive compression roller and seamless steel pipe while rotating, in the process
It realizes the continuous rotation roll-in to seamless steel pipe tube wall, the wall thickness of seamless steel pipe is made to reach 4mm, length after continuous roll-in
For 1700mm, outer diameter 800mm；
Wherein, described seamless pressurized tank rolling device, drive roll 1 and and drive roll including seamless steel pipe 7 can be set with
A compression roller 2 for being squeezed seamless steel pipe for cooperation, drive roll 1 and compression roller 2 are arranged parallel realization pair
Seamless steel pipe is squeezed, from fig. 4, it can be seen that further including the support roller 8 having positioned at 2 two sides of compression roller, support roller in the present embodiment
6 are fixedly mounted on the two sides of compression roller 2, in use, seamless steel pipe is sleeved on drive roll, seamless steel pipe first passes through wherein one
A support roller is supported and determines away and squeezed backward using compression roller 2, finally using another support roller into
Row supports and determination is walked to be recycled using drive roll again backward, is supported determining operation to seamless steel pipe by support roller
Track and the stability for improving support, drive roll 1 connect with driving device and can rotate under the drive of the drive, squeeze
The both ends of pressure roller 1 are equipped with bearing block, are equipped with two oil cylinder liftings (lifting with the cooperation of two bearing blocks on the rack
Oil cylinder) 3, that is to say, that one end of each oil cylinder lifting is installed by rack, two bearings of other end and compression roller
Seat is installed, and so that oil cylinder lifting is driven compression roller oscilaltion, to make compression roller 1 in oil cylinder elevator
Opposite drive roll is gone up and down under the driving of structure (lifting cylinder), at the same time, is rotated using motor driven drive roll, seamless steel pipe energy
It is enough to make the reduction of its wall thickness under the drive of the rotary force of drive roll 1 and by persistently carrying out squeezing with compression roller cooperation, by upper
Structure design is stated, drives compression roller add seamless steel pipe with respect to drive roll lifting moving by oil cylinder lifting 3
Pressure, while drive roll opposing compression roller being made to rotate roll-in, seamless steel pipe can be rotated under frictional force effect, realize rotation
It squeezes, seamless steel pipe makes its wall thickness be reduced to the size of needs under the drive of drive roll 1 by the extruding of compression roller, is rotating
In extrusion process, squeeze to the seamless steel pipe after heating makes its metal material tissue even compact, and bearing capacity is significantly
Enhancing, reach can as pressurized tank standard and need again to handle surface；
C, will be mounted in spinning necking equipment by seamless steel pipe after extruding, starting spinning necking equipment to seamless steel pipe into
The both ends bore of seamless steel pipe is reduced to the inner hole of 50mm by row necking, wherein described spinning necking equipment can use 611
Lathe, installs the idler wheel that outer diameter is 100mm on the knife rest of 611 lathes, outer curve is formed by idler wheel track, to be formed
Necking down；
D, the seamless steel pipe Jing Guo necking is dismantled from spinning necking equipment, required pressurized tank 6 has thus been made.
Embodiment two:
The production method of the seamless pressurized tank of the present embodiment, comprising the following steps:
A, with internal diameter for 400 mm, wall thickness 13mm, the 4*26 seamless steel pipe that length is 1680mm is raw material, passes through heating equipment
Seamless steel pipe is heated, heating temperature is 700 DEG C；
B, on the drive roll (the long 2500mm of roller) that the seamless steel pipe after heating is sleeved in rolling device, pass through elevator
Structure pressurizes (pressure of generation is 500 tons) to the tube wall opposing compression roller of seamless steel pipe, meanwhile, make to make using driving device
Drive roll rotates and drives compression roller and seamless steel pipe while rotating, and drive roll 1 is arranged parallel with compression roller 2, herein mistake
The continuous rotation roll-in to seamless steel pipe tube wall is realized in journey, and the wall thickness of seamless steel pipe is made to reach 4mm after continuous roll-in,
Length is 1700mm, outer diameter 800mm；
Wherein, described seamless pressurized tank rolling device, drive roll 1 and and drive roll including seamless steel pipe 7 can be set with
A compression roller 2 for being squeezed seamless steel pipe for cooperation, drive roll 1 and compression roller 2 are arranged parallel realization pair
Seamless steel pipe is squeezed, from fig. 4, it can be seen that further including the support roller 8 having positioned at 2 two sides of compression roller, support roller in the present embodiment
6 are fixedly mounted on the two sides of compression roller 2, in use, seamless steel pipe is sleeved on drive roll, seamless steel pipe first passes through wherein one
A support roller is supported and is squeezed after determining direction using compression roller 2, finally using another support roller into
Row is recycled using drive roll again after supporting determining traffic direction, is supported determining fortune to seamless steel pipe by support roller
Row track and the stability for improving support, drive roll 1 connect with driving device (preferably motor) 5 and can be in the drives of motor
Dynamic lower rotation, drive roll 1 be mounted in rack 4 by screw-threaded shaft elevator structure 3 and can under the driving of screw-threaded shaft elevator structure phase
It is mobile to compression roller, specifically, screw-threaded shaft elevator structure is mounted on the bearing block of drive roll, it is possible thereby to drive on drive roll
Lower lifting, and the top of screw-threaded shaft elevator structure is then mounted on the rack, motor is with drive roll during drive roll lifting
Synchronization lifting, the extruding that seamless steel pipe can pass through compression roller under actively 1 drive reduces its wall thickness, in use, by nothing
Steel pipe socket is stitched on drive roll, drives the movement of drive roll opposing compression roller to pressurize by screw-threaded shaft elevator structure 3, makes simultaneously
Drive roll opposing compression roller rotates roll-in, and seamless steel pipe can be rotated under frictional force effect, realize rotary squeezing, seamless
Steel pipe passes through the size that the extruding of compression roller makes its wall thickness be reduced to needs under the drive of drive roll 1, in spin extrusion process
In, squeeze to the seamless steel pipe after heating makes its metal material tissue even compact, and bearing capacity greatly enhances, reaches
Can as pressurized tank standard and need again to handle surface；
Furthermore for rolling device, for the ease of the suit of seamless steel pipe, the structure of existing veneer reeling machine can be used,
I.e. the end of drive roll can be disassembled, and thus seamless steel pipe is socketed in after drive roll and is installed again to elevating mechanism,
Elevating mechanism is disassembled again after completion squeeze job and is unloaded seamless steel pipe from drive roll；
C, will be mounted in spinning necking equipment by seamless steel pipe after extruding, starting spinning necking equipment to seamless steel pipe into
The both ends bore of seamless steel pipe is reduced to the inner hole of 50mm by row necking, wherein described spinning necking equipment can use 611
Lathe, installs the idler wheel that outer diameter is 100mm on the knife rest of 611 lathes, outer curve is formed by idler wheel track, to be formed
Necking down；
D, the seamless steel pipe Jing Guo necking is dismantled from spinning necking equipment, required pressurized tank 6 has thus been made.
Embodiment three:
The production method of the seamless pressurized tank of the present embodiment, comprising the following steps:
A, with internal diameter for 400 mm, wall thickness 15mm, the 4*30 seamless steel pipe that length is 1680mm is raw material, is set by heating
Standby to heat to seamless steel pipe, heating temperature is 800 DEG C；
B, the seamless steel pipe after heating is sleeved on the drive roll in rolling device, drive roll 1 and compression roller 2 are mutually flat
Row arrangement, being pressurizeed by the elevating mechanism of drive roll to the tube wall opposing compression roller of seamless steel pipe, (pressure of generation is 800
Ton), while drive roll opposing compression roller being made to rotate roll-in, so that the wall thickness of seamless steel pipe is reached 4.5mm, length 1700mm, outside
Diameter 800mm, wherein described seamless pressurized tank rolling device and the structure of embodiment two are essentially identical, and the main distinction is this reality
The compression roller 2 for applying rolling device in example is provided with two, in use, using elevating mechanism driving drive roll to the pipe of seamless steel pipe
Wall opposing compression roller pressurizes, and drive roll opposing compression roller is made to rotate roll-in after pressurization, the seamless steel in rotation nipping process
Pipe successively passes through two compression rollers by frictional force and is squeezed, and the arrangement mode of two compression rollers can make seamless steel pipe always
It is run along specific curved surface, thus gradually enables that the internal diameter of seamless steel pipe becomes larger and seamless steel pipe is in drive roll 1
Drive under pass through compression roller extruding make its wall thickness reduce；
C, it will be mounted on spinning necking machine by seamless steel pipe after extruding, starting spinning necking machine contracts to seamless steel pipe
Mouthful, the both ends bore of seamless steel pipe is reduced to the inner hole of 100mm, wherein described spinning necking equipment can use JZ-SCP-
The spinning necking machine of 120 automatic draw spinning machines or other models forms necking down by the direct spinning of automatic draw spinning machine；
D, the seamless steel pipe Jing Guo necking is dismantled from spinning necking machine.
Example IV:
The production method of the seamless pressurized tank of the present embodiment, comprising the following steps:
A, with internal diameter for 400 mm, outer diameter 416mm, wall thickness 8mm, the 4*16 seamless steel pipe that length is 1680mm is raw material,
Seamless steel pipe is heated by heating equipment, heating temperature is 750 DEG C；
B, on the drive roll (the long 2500mm of roller) that the seamless steel pipe after heating is sleeved in rolling device, pass through drive roll
Elevating mechanism pressurizeed to the tube wall opposing compression roller of seamless steel pipe (pressure is 1000 tons), while squeeze drive roll relatively
Pressure roller rotates roll-in, and the internal diameter of seamless steel pipe is made to reach 792mm, outer diameter 800mm, wall thickness 4mm, length 1700mm, outer diameter
800mm, wherein described seamless pressurized tank rolling device and the structure of embodiment two are essentially identical, and the main distinction is this reality
Applying has two compression rollers 2 in the rolling device of example, in use, using elevating mechanism driving drive roll to the tube wall of seamless steel pipe
Opposing compression roller pressurizes, and drive roll opposing compression roller is made to rotate roll-in after pressurization, the seamless steel pipe in rotation nipping process
Successively squeezed by different compression rollers by frictional force, the mode of each compression roller arrangement with can seamless steel pipe always
Along specific curved surface operation subject to, thus gradually enable the internal diameter of seamless steel pipe become larger and seamless steel pipe actively
The extruding for passing through compression roller under the drive of roller 1 reduces its wall thickness；
C, will be mounted in spinning necking equipment by seamless steel pipe after extruding, starting spinning necking equipment to seamless steel pipe into
The both ends bore of seamless steel pipe is reduced to the inner hole of 150mm by row necking, wherein described spinning necking equipment can use 611
Lathe installs the idler wheel that outer diameter is 100mm on the knife rest of 611 lathes, is squeezed by the side of idler wheel, utilizes idler wheel walking
Track forms required outer curve, to form necking down；
D, the seamless steel pipe Jing Guo necking is dismantled from spinning necking equipment.
By being detected to using seamless pressurized tank made of above-mentioned rolling device and manufacturing method, manufactured cylinder
Bearing capacity reaches 25-30kg, entire to reduce manufacturing cost 5-10%.
Claims (10)
1. a kind of production method of seamless pressurized tank, which comprises the following steps:
A, using wall thickness for 8-15mm seamless steel pipe as raw material, seamless steel pipe is heated by heating equipment, heating temperature
It is 600-800 DEG C；
B, the seamless steel pipe after heating is sleeved on the drive roll in rolling device, rolling device is made by elevating mechanism
Drive roll and compression roller opposing compression pressurize to the tube wall of seamless steel pipe, meanwhile, make to make drive roll using driving device
It rotates and drives compression roller and seamless steel pipe while rotating, realize the continuous rotation roller to seamless steel pipe tube wall in the process
Pressure, makes the wall thickness of seamless steel pipe reach 4-4.5mm；
C, will be mounted in spinning necking equipment by seamless steel pipe after extruding, starting spinning necking equipment to seamless steel pipe into
The both ends bore of seamless steel pipe is reduced to the inner hole of 50-1500mm by row necking；
D, the seamless steel pipe Jing Guo necking is dismantled from spinning necking equipment.
2. a kind of seamless pressurized tank rolling device, it is characterised in that: including can be set with seamless steel pipe drive roll (1) and with
The compression roller (2) for being squeezed seamless steel pipe of drive roll cooperation, further includes that drive roll and compression roller can be made opposite
The elevating mechanism (3) of extruding, the elevating mechanism make drive roll and compression roller opposing compression to the tube wall to seamless steel pipe into
Row pressurization, the drive roll (1) connect with power device (5) and can rotate under the driving of power device, the seamless steel
Pipe can be such that its wall thickness reduces under the drive of drive roll (1) and by the synchronous rotary continuous extrusion of compression roller.
3. seamless pressurized tank rolling device according to claim 2, it is characterised in that: the length of the compression roller is longer than nothing
Stitch the length of steel pipe.
4. seamless pressurized tank rolling device according to claim 2, it is characterised in that: the elevating mechanism is lead screw or oil
Cylinder elevating mechanism, the lead screw or oil cylinder lifting are supported by bracket and are installed.
5. according to seamless pressurized tank rolling device described in one of claim 2-4, it is characterised in that: the elevating mechanism (3)
It is mounted on the bearing block of compression roller and compression roller can be driven to go up and down with respect to drive roll.
6. seamless pressurized tank rolling device according to claim 5, it is characterised in that: the compression roller (2) is provided with one
The two sides of root, the compression roller (2) are provided with support roller.
7. seamless pressurized tank rolling device according to claim 5, it is characterised in that: the compression roller (2) is provided with two
Root is equipped with elevating mechanism on an at least compression roller (2).
8. according to seamless pressurized tank rolling device described in one of claim 2-4, it is characterised in that: the elevating mechanism (3)
It is mounted on the bearing block of drive roll and drive roll opposing compression roller can be driven to go up and down.
9. seamless pressurized tank rolling device according to claim 8, it is characterised in that: the compression roller (2) is provided with one
The two sides of root, the compression roller (2) are provided with support roller.
10. seamless pressurized tank rolling device according to claim 8, it is characterised in that: the compression roller (2) is provided with two
Root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594233.1A CN110238308A (en) | 2019-07-03 | 2019-07-03 | A kind of seamless pressurized tank rolling device and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594233.1A CN110238308A (en) | 2019-07-03 | 2019-07-03 | A kind of seamless pressurized tank rolling device and manufacturing method |
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| Publication Number | Publication Date |
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| CN110238308A true CN110238308A (en) | 2019-09-17 |
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ID=67890870
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910594233.1A Pending CN110238308A (en) | 2019-07-03 | 2019-07-03 | A kind of seamless pressurized tank rolling device and manufacturing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090980A (en) * | 2020-07-27 | 2020-12-18 | 新兴铸管股份有限公司 | Production method of stainless steel composite pipe |
| CN112496193A (en) * | 2020-11-03 | 2021-03-16 | 西安近代化学研究所 | Arc generating line curved surface cylinder roll-welding forming device |
| CN114248074A (en) * | 2021-12-24 | 2022-03-29 | 大连华日金属成型厂 | Spinning process of air storage tank |
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| GB1198536A (en) * | 1967-03-13 | 1970-07-15 | Mannesman Meer Ag | Improvements in or relating to Methods of Producing Seamless Metal Pipes. |
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| GB405202A (en) * | 1932-08-11 | 1934-02-01 | Bliss E W Co | Method and apparatus for forming smoothly rounded can bodies |
| GB1198536A (en) * | 1967-03-13 | 1970-07-15 | Mannesman Meer Ag | Improvements in or relating to Methods of Producing Seamless Metal Pipes. |
| CN1162277A (en) * | 1994-10-26 | 1997-10-15 | 坦德姆***公司 | System for constricting tube wall |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090980A (en) * | 2020-07-27 | 2020-12-18 | 新兴铸管股份有限公司 | Production method of stainless steel composite pipe |
| CN112496193A (en) * | 2020-11-03 | 2021-03-16 | 西安近代化学研究所 | Arc generating line curved surface cylinder roll-welding forming device |
| CN114248074A (en) * | 2021-12-24 | 2022-03-29 | 大连华日金属成型厂 | Spinning process of air storage tank |
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