CN110935731A - Multi-roller surrounding type high-precision seamless taper pipe forming roller die - Google Patents
Multi-roller surrounding type high-precision seamless taper pipe forming roller die Download PDFInfo
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- CN110935731A CN110935731A CN201911248219.2A CN201911248219A CN110935731A CN 110935731 A CN110935731 A CN 110935731A CN 201911248219 A CN201911248219 A CN 201911248219A CN 110935731 A CN110935731 A CN 110935731A
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- roller
- forming
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- taper pipe
- roller die
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- 238000003825 pressing Methods 0.000 claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 33
- 238000000034 method Methods 0.000 abstract description 11
- 238000009776 industrial production Methods 0.000 abstract description 4
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
- B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/024—Rolls for bars, rods, rounds, tubes, wire or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a multi-roller surrounding type high-precision seamless taper pipe forming roller die which comprises a plurality of groups of forming modules (1) which are sequentially arranged along the axial direction of a pipe to be processed, wherein each group of forming modules (1) comprises three roller die bodies (11) which are radially distributed in a surrounding manner around the axial line, the roller die bodies (11) are fixed on a die carrier (2), forming grooves are formed in the circumferences of the roller die bodies (11), forming grooves of the three roller die bodies (11) are matched to form a whole-round cold pressing die orifice, and the diameter of the formed cold pressing die orifice is gradually increased or reduced along with the synchronous rotation of the three roller die bodies (11). The method has the advantages that the method can be used for processing the capillary flexible seamless taper pipe in millimeter level, and the capillary flexible seamless taper pipe can meet the requirements of industrial production in processing qualification rate and processing precision.
Description
Technical Field
The invention relates to the technical field of taper pipe forming, in particular to a multi-roller surrounding type high-precision seamless taper pipe forming roller die.
Background
Petroleum, chemical industry, medical treatment, fire control, electric power, mechanical equipment, logistics equipment, shipbuilding, building, instruments and meters, hot-water heating household electrical appliances, fields such as military affairs all need use the taper pipe, because the taper pipe main raw materials uses the carbon steel to be given first place to, also can use stainless steel, various materials such as alloy steel obtain the taper pipe of different performance, the fashioned mode of traditional hot push can cause irreversible internal part substructure's change to the processing material, make the taper pipe that processing obtained lose the performance of material itself, therefore, to some service environment that require high to the material, cold-pressing shaping has become the mainstream of taper pipe processing.
For the cold press molding of the taper pipe, the extrusion type processing is gradually replaced by the rolling type processing because the advantages of adding pipes with various sizes, small pipe burst probability and the like in the processing process to become the mainstream of the modern taper pipe cold press molding, for the rolling processing, the design of the die is a big difficulty in the processing, in the patent application CN 110303064A applied and published by the department of China, the tapered pipe continuous cold press molding roller die is disclosed, the roller die comprises a pair of roller die bodies with the same structure and tangentially arranged excircle, an effective cold press area of a full-circle die opening is formed at a tangent point after the two roller die bodies are matched, and the diameter of the formed full-circle die opening is gradually increased or reduced along with the reverse synchronous rotation of the pair of roller die bodies.
The mold in the patent is mainly used for processing the taper pipe with larger size in practical application, but relates to more precise capillary flexible seamless taper pipes under specific requirements such as medical instruments, instruments and meters, the outer diameter of the capillary flexible seamless taper pipe is commonly 2.5-6.5mm, the mold in the patent cannot process the taper pipe with the millimeter grade, even if the mold is scaled in an equal proportion, the precision and the success rate of processing the taper pipe cannot meet the production requirements, and the processing cost of a single capillary flexible seamless taper pipe is very high.
Therefore, the existing taper pipe forming die cannot be well used for processing the capillary flexible seamless taper pipe at the millimeter level, the production requirements of the capillary flexible seamless taper pipe cannot be met no matter on the processing qualified rate and the processing precision, and a new high-precision seamless taper pipe forming roller die is urgently needed to meet the requirements of the market on the capillary flexible seamless taper pipe.
Disclosure of Invention
The invention aims to provide a multi-roller surrounding type high-precision seamless taper pipe forming roller die. The method has the advantages that the method can be used for processing the capillary flexible seamless taper pipe in millimeter level, and the capillary flexible seamless taper pipe can meet the requirements of industrial production in processing qualification rate and processing precision.
The technical scheme of the invention is as follows: the multi-roller surrounding type high-precision seamless taper pipe forming roller die comprises a plurality of groups of forming modules which are sequentially arranged along the axis direction of a pipe to be processed, each group of forming modules comprises three roller die bodies which radially surround the axis and are distributed, the roller die bodies are fixed on a die frame, forming grooves are formed in the circumferences of the roller die bodies, a cold pressing die orifice of a whole circle is formed after the forming grooves of the three roller die bodies are matched, and the diameter of the cold pressing die orifice is gradually increased or reduced along with the synchronous rotation of the three roller die bodies.
In the multi-roller surrounding type high-precision seamless taper pipe forming roller die, in two adjacent forming modules in the direction of the linear motion of the taper pipe, the minimum cold pressing die orifice diameter of the front forming module is larger than that of the rear forming module and is smaller than that of the rear forming module.
In the multi-roller surrounding type high-precision seamless taper pipe forming roller die, the center of the roller die body is provided with the shaft hole, and the roller die body is installed through the shaft.
In the multi-roller surrounding type high-precision seamless taper pipe forming roller die, the effective working length of the forming groove is 1/2-3/4 of the circumference of the forming groove.
In the seamless taper pipe shaping roller mould of aforementioned multi-roll surrounding type high precision, the die carrier includes a plurality of end to end's triangular prism shape inner core, is equipped with the through-hole that matches with the seamless taper pipe of production on the inner core central line, corresponds on the three side of inner core and is equipped with the closing cap, and the side of inner core is formed with the accommodation space that can supply roller mould body embedding behind the closing cap cooperation with corresponding, and the external cover of cooperation body of a plurality of inner core and all closing caps has the cylindricality shell.
In the multi-roller surrounding type high-precision seamless taper pipe forming roller die, the two ends of the cylindrical shell are provided with the limit stop blocks.
Compared with the prior art, the taper pipe forming roller die comprises a plurality of groups of forming modules which are sequentially arranged along the axial direction of a pipe to be processed, each group of forming modules comprises three roller die bodies which are radially distributed around the axial line, the pipe to be processed does linear feeding motion while rotating, and the design of annular distribution of the roller die bodies around one circle is compared with the existing mode design, so that when the pipe contacts the roller die bodies, acting force is dispersed on three different roller die bodies, the three different roller die bodies can simultaneously give the pipe reaction force to carry out rolling type forming processing on the pipe, the reaction force is more dispersed and uniform, a taper pipe with higher processing precision is obtained, and the taper pipe can be used for processing a millimeter-level capillary flexible seamless taper pipe, and each group of forming modules is composed of three roller die bodies which are annularly distributed around the pipe line, the increase of the number of the roller die bodies also enables the fault-tolerant rate of the roller die bodies to be higher, so that the processing qualification rate and the processing precision of the capillary flexible seamless taper pipe can meet the requirements of industrial production, and the manufacturing cost of the capillary flexible seamless taper pipe is greatly reduced by adopting the die to process the capillary flexible seamless taper pipe.
Furthermore, in two adjacent groups of forming modules along the linear movement direction of the taper pipe, the minimum cold pressing die orifice diameter of the front forming module is larger than that of the rear forming module and is smaller than that of the rear forming module, and the size design ensures that the continuous forming processing of the taper pipe with the required length can be finished by only adjusting the number of the forming module groups under ideal conditions.
Furthermore, the effective working length of the forming groove of the roller die body is 1/2-3/4 of the circumference of the forming groove, the working area on the roller die body is reasonably utilized, and the conditions of interference between the roller die body and a pipe and the like in rolling processing can be effectively prevented; the roller die body is arranged on the die frame, the die frame comprises a plurality of triangular prism-shaped inner cores which are connected end to end, through holes which are matched with the seamless taper pipe to be produced are arranged on the central line of the inner cores, seal covers are correspondingly arranged on three side surfaces of the inner cores, an accommodating space which can be embedded into the roller die body is formed inside the inner cores after the side surfaces of the inner cores are matched with the corresponding seal covers, and the die frame is customized for the roller die body, so that the three roller die bodies can keep the stability of the relative positions of the three roller die bodies, and a basic guarantee is provided for the forming and processing of the taper.
In conclusion, the method has the advantages that the method can be used for processing the capillary flexible seamless taper pipe with millimeter level, and the capillary flexible seamless taper pipe can meet the requirements of industrial production in terms of processing qualification rate and processing precision.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a forming module;
FIG. 3 is a schematic structural view of the inner core;
FIG. 4 is a schematic view of the closure;
FIG. 5 is a schematic three-dimensional structure of a cylindrical housing;
FIG. 6 is a schematic cross-sectional view of a cylindrical housing;
fig. 7 is a schematic view showing a state where the molding module is mounted in the mold frame.
Reference numerals: 1-forming module, 2-die carrier, 11-roller die body, 21-inner core, 22-sealing cover, 23-cylindrical shell, 24-limit stop and 25-through hole.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example (b): a multi-roller surrounding type high-precision seamless taper pipe forming roller die is mainly used for machining capillary flexible seamless taper pipes with the outer diameter of 2.5-6.5mm, and is structurally shown in figures 1-7, the multi-roller surrounding type high-precision seamless taper pipe forming roller die comprises a plurality of groups of forming modules 1 which are sequentially arranged along the axial direction of pipes to be machined, each group of forming modules 1 comprises three roller die bodies 11 which radially surround and distribute around the axial direction, the roller die bodies 11 are fixed on a die frame 2, a circle of forming grooves are formed in the circumferences of the roller die bodies 11, a whole-round cold-pressing die orifice is formed after the forming grooves of the three roller die bodies 11 are matched, and the diameter of the formed cold-pressing die orifice is gradually increased or reduced along with synchronous rotation of the three roller die.
In the practical application process, as the using length of the capillary flexible seamless taper pipe is not required to be too long in the application process, the number of the forming modules 1 in the embodiment is only 4, and the production requirement can be met; in two adjacent groups of forming modules 1 along the straight-line movement direction of the taper pipe, the diameter of the minimum cold pressing die orifice of the front forming module 1 is larger than that of the minimum cold pressing die orifice of the rear forming module 1 and smaller than that of the maximum cold pressing die orifice of the rear forming module 1, namely, each roller die body 11 is designed in size, so that the diameters of the circular cold pressing die orifices formed by the front and rear forming modules 1 are partially overlapped with each other, and the continuous cold pressing forming of the seamless taper pipe in a multistage alternating mode is carried out.
The center of the roller die body 11 is provided with a shaft hole, and the roller die body 11 is installed through the shaft; the effective working length of the forming groove is 1/2-3/4 of the circumference of the forming groove, the working area on the roller die body 11 is reasonably utilized, and the conditions of interference between the roller die body 11 and the pipe and the like in the rolling process can be effectively prevented.
The die carrier 2 of the invention comprises a plurality of triangular prism-shaped inner cores 21 which are connected end to end, the central line of the inner core 21 is provided with a through hole 25 which is matched with a seamless taper pipe to be produced, three side surfaces of the inner core 21 are correspondingly provided with seal covers 22, an accommodating space which can be embedded into the roller die body 11 is formed inside after the side surfaces of the inner core 21 are matched with the corresponding seal covers 22, the accommodating space is slightly larger than the size of the roller die body 11, make roll die body 11 radially have certain adjustment space after packing into, the outside cover of the cooperation body of a plurality of inner core 21 and all closing caps 22 has cylindricality shell 23, seal all closing caps 22 and the cooperation body of inner core 21 and fix, carry out radial spacing, the both ends of cylindricality shell 23 are equipped with limit stop 24, it is spacing to carry out the axial, die carrier 2 is the customization of roll die body 11 size, make three roll die body 11 can keep the stability of relative position each other, provide basic guarantee for taper pipe shaping processing.
The working principle of the invention is as follows: the forming module 1 is sequentially arranged according to the diameter of the maximum cold pressing die orifice from large to small, a core rod is inserted into a straight pipe with the same diameter to be processed to serve as an inner die, the straight pipe with the same diameter and the core rod are synchronously fed into the forming module 1 to drive each roller die body 11 to rotate, and the rotating roller die bodies 11 simultaneously give the reaction force of the straight pipe with the same diameter to carry out continuous rolling type forming processing on the straight pipe, so that the straight pipe is processed into a seamless taper pipe.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Claims (6)
1. Multiple roller is around seamless taper pipe forming roller mould of formula high precision, its characterized in that: the forming die comprises a plurality of groups of forming modules (1) which are sequentially arranged along the axial direction of a pipe to be processed, each group of forming modules (1) comprises three roller die bodies (11) which are radially distributed around the axis, the roller die bodies (11) are fixed on a die frame (2), forming grooves are formed in the circumferences of the roller die bodies (11), a cold pressing die orifice of a whole circle is formed after the forming grooves of the three roller die bodies (11) are matched, and the diameter of the formed cold pressing die orifice is gradually increased or reduced along with the synchronous rotation of the three roller die bodies (11).
2. The multi-roller surrounding type high-precision seamless taper pipe forming roller mold according to claim 1, wherein: in two adjacent groups of forming modules (1) along the linear movement direction of the taper pipe, the minimum cold pressing die orifice diameter of the front forming module (1) is larger than that of the rear forming module (1) and is smaller than that of the rear forming module (1).
3. The multi-roller surrounding type high-precision seamless taper pipe forming roller mold according to claim 2, wherein: the center of the roller die body (11) is provided with a shaft hole, and the roller die body (11) is installed through the shaft.
4. The multi-roll surrounding type high precision seamless taper pipe forming roll mold according to claim 1, 2 or 3, wherein: the effective working length of the forming groove is 1/2-3/4 of the circumference of the forming groove.
5. The multi-roll surrounding type high precision seamless taper pipe forming roll mold according to claim 1, 2 or 3, wherein: the roll forming die is characterized in that the die holder (2) comprises a plurality of triangular prism-shaped inner cores (21) connected end to end, through holes (25) matched with the produced seamless taper pipes are formed in the center lines of the inner cores (21), sealing covers (22) are correspondingly arranged on three side faces of the inner cores (21), an accommodating space capable of being used for embedding the roll die body (11) is formed in the side faces of the inner cores (21) and the corresponding sealing covers (22) in a matched mode, and a cylindrical shell (23) is sleeved on the outer portion of a matched body of the inner cores (21) and all the sealing covers (22).
6. The multi-roller surrounding type high-precision seamless taper pipe forming roller mold according to claim 5, wherein: and two ends of the cylindrical shell (23) are provided with limit stoppers (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248219.2A CN110935731A (en) | 2019-12-09 | 2019-12-09 | Multi-roller surrounding type high-precision seamless taper pipe forming roller die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248219.2A CN110935731A (en) | 2019-12-09 | 2019-12-09 | Multi-roller surrounding type high-precision seamless taper pipe forming roller die |
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| Publication Number | Publication Date |
|---|---|
| CN110935731A true CN110935731A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911248219.2A Pending CN110935731A (en) | 2019-12-09 | 2019-12-09 | Multi-roller surrounding type high-precision seamless taper pipe forming roller die |
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1305769A (en) * | 1969-07-29 | 1973-02-07 | Superior Tube Co | |
| GB1305770A (en) * | 1969-07-29 | 1973-02-07 | Superior Tube Co | |
| US4866968A (en) * | 1987-06-17 | 1989-09-19 | Westinghouse Electric Corp. | High strength cemented carbide dies and mandrels for a pilgering machine |
| JPH071009A (en) * | 1993-06-17 | 1995-01-06 | Sumitomo Metal Ind Ltd | Method for cold rolling tube |
| JP2007111756A (en) * | 2005-10-21 | 2007-05-10 | Nippon Steel & Sumikin Metal Products Co Ltd | Tapered tube manufacturing method |
| CN101234397A (en) * | 2007-01-29 | 2008-08-06 | 杨连明 | Cold rolling coning pipe fitting mold |
| CN101460264A (en) * | 2006-06-12 | 2009-06-17 | 西马克德马格伊斯有限公司 | Retained mandrel rolling mill for seamless tubes |
| CN201558845U (en) * | 2009-05-10 | 2010-08-25 | 温州市金洛机械设备制造有限公司 | Cold rolling die suitable for special tube of double-roll cold rolled tube machine |
| CN102699220A (en) * | 2012-07-02 | 2012-10-03 | 昆明理工大学 | Pinching method of tubing |
| CN102989774A (en) * | 2012-12-18 | 2013-03-27 | 中冶京诚工程技术有限公司 | Combined three-roller continuous rolling mill |
| CN203750994U (en) * | 2014-04-01 | 2014-08-06 | 中冶赛迪工程技术股份有限公司 | Tube push bench adjustable roller die capable of improving use rate of roll |
| CN104889195A (en) * | 2015-06-09 | 2015-09-09 | 常州市腾田液压机械有限公司 | Combined forming process and forming device for pipes with large and medium calibers |
| CN106862273A (en) * | 2017-04-10 | 2017-06-20 | 广东科莱博科技有限公司 | A kind of milling method of cold rolled tube |
| CN107855363A (en) * | 2017-12-04 | 2018-03-30 | 北京京诚之星科技开发有限公司 | A kind of roller die and push-bench |
| CN109092898A (en) * | 2018-06-08 | 2018-12-28 | 太原科技大学 | A kind of NEW PLASTIC processing method of the seamless pipe range material of high-performance magnesium-alloy |
| CN109351777A (en) * | 2018-11-21 | 2019-02-19 | 杭州淳通新材料科技有限公司 | Revolving-rolling type produces and processes seamless conical pipe equipment and its production and processing method |
| CN211386302U (en) * | 2019-12-09 | 2020-09-01 | 杭州淳通新材料科技有限公司 | Multi-roller surrounding type high-precision seamless taper pipe forming roller die |
-
2019
- 2019-12-09 CN CN201911248219.2A patent/CN110935731A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1305769A (en) * | 1969-07-29 | 1973-02-07 | Superior Tube Co | |
| GB1305770A (en) * | 1969-07-29 | 1973-02-07 | Superior Tube Co | |
| US4866968A (en) * | 1987-06-17 | 1989-09-19 | Westinghouse Electric Corp. | High strength cemented carbide dies and mandrels for a pilgering machine |
| JPH071009A (en) * | 1993-06-17 | 1995-01-06 | Sumitomo Metal Ind Ltd | Method for cold rolling tube |
| JP2007111756A (en) * | 2005-10-21 | 2007-05-10 | Nippon Steel & Sumikin Metal Products Co Ltd | Tapered tube manufacturing method |
| CN101460264A (en) * | 2006-06-12 | 2009-06-17 | 西马克德马格伊斯有限公司 | Retained mandrel rolling mill for seamless tubes |
| CN101234397A (en) * | 2007-01-29 | 2008-08-06 | 杨连明 | Cold rolling coning pipe fitting mold |
| CN201558845U (en) * | 2009-05-10 | 2010-08-25 | 温州市金洛机械设备制造有限公司 | Cold rolling die suitable for special tube of double-roll cold rolled tube machine |
| CN102699220A (en) * | 2012-07-02 | 2012-10-03 | 昆明理工大学 | Pinching method of tubing |
| CN102989774A (en) * | 2012-12-18 | 2013-03-27 | 中冶京诚工程技术有限公司 | Combined three-roller continuous rolling mill |
| CN203750994U (en) * | 2014-04-01 | 2014-08-06 | 中冶赛迪工程技术股份有限公司 | Tube push bench adjustable roller die capable of improving use rate of roll |
| CN104889195A (en) * | 2015-06-09 | 2015-09-09 | 常州市腾田液压机械有限公司 | Combined forming process and forming device for pipes with large and medium calibers |
| CN106862273A (en) * | 2017-04-10 | 2017-06-20 | 广东科莱博科技有限公司 | A kind of milling method of cold rolled tube |
| CN107855363A (en) * | 2017-12-04 | 2018-03-30 | 北京京诚之星科技开发有限公司 | A kind of roller die and push-bench |
| CN109092898A (en) * | 2018-06-08 | 2018-12-28 | 太原科技大学 | A kind of NEW PLASTIC processing method of the seamless pipe range material of high-performance magnesium-alloy |
| CN109351777A (en) * | 2018-11-21 | 2019-02-19 | 杭州淳通新材料科技有限公司 | Revolving-rolling type produces and processes seamless conical pipe equipment and its production and processing method |
| CN211386302U (en) * | 2019-12-09 | 2020-09-01 | 杭州淳通新材料科技有限公司 | Multi-roller surrounding type high-precision seamless taper pipe forming roller die |
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