CN2690065Y - Seamless steel pipe combined pipe mill group - Google Patents
Seamless steel pipe combined pipe mill group Download PDFInfo
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- CN2690065Y CN2690065Y CN 200420047989 CN200420047989U CN2690065Y CN 2690065 Y CN2690065 Y CN 2690065Y CN 200420047989 CN200420047989 CN 200420047989 CN 200420047989 U CN200420047989 U CN 200420047989U CN 2690065 Y CN2690065 Y CN 2690065Y
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Abstract
The utility model provides a seamless steel-pipe combined pipe milling-group, comprising a propulsion system, a rolling mechanism and a drawing mechanism. Three planet rollers of a planet roller rolling mechanism are evenly distributed along the circumferential direction in equal division. The axial line of each planet roller and the longitudinal axis of the work piece form a space intersection angle with alpha value. The outer circumference of each planet roller is composed of an input section, a finishing section and an output section. Reeling mechanisms are arranged behind the planet roller rolling mechanism; three planet reeling rollers are in equal division spatial arrangement along the circumferential direction; axle heads on both ends of each reeling roller respectively bear on left and right bearings which are respectively mounted in an adjusting joint bearing seat. Reeling voltage regulating screw rods are linked with the bolt holes of the bearing seats. A reeling rotary plate is arranged on a swing arm sheath through the bearing; the swing arm sheath is respectively fixed to the left and right fixing machine frames. The gears of the reeling rotary plate are engaged with the gears of the transmission system. The utility model collects multiple working procedures of hydraulic feed, planet roller spinning roll-off and front tension drawing to form a serial production line, adaptive for different steel pipe material, capable of forming high temperature or low temperature ductility, with high production efficiency.
Description
Technical field
The utility model relates to planetary rollers backing machine, particularly a kind of tube rolling unit that planetary rollers, hydraulic pressure propelling, the associating of drawing mechanism are arranged that is used for seamless steel tube production.
Background technology
Present large-scale steel pipe factory, product specification is incomplete, on tinuous production, only can produce large batch of several specification, medium-sized and small enterprises specification production how wide in variety is still prolonged with traditional too many levels turnover production method, and production efficiency is low, the cost height is 1.3 to 1.4 times of ordinary steel so make the ton valency of tube product.Description is few, adapts to the modern industry field far from, machine-building structural tube, engineering structure pipe, the needs of pipeline engineering carrier pipe.
At present the medium-sized and small enterprises production method is still prolonged and used multiple operation, multiplex (MUX) to go on foot the primitive method of turnover: perforated steel billit---rolling---can not realize carrying out continuously by tube reducing---sizing---expansion.Change drawbench then, the draw moulding of multiple operation.So the production cost height, energy resource consumption is higher than about 2 times of common shaped steel.
The technical merit present situation:
(1) known to the investigation at present, the roll seamless steel tube technology, large enterprise introduces advanced Xin Asaier type, and the Development and Production of incompatibility medium-sized and small enterprises specification how wide in variety only can be produced several specifications in large enterprise.
(2) novel A Saier rolling (three-roll pipe mill) roll roller frame is two, one of them is fixed, under another power drive outside, can be around 0 to 25 ° of rolling centerline revolution, obtain pipe fitting of its revolution and obtain advancing once, this class milling train can not be processed in hole enlargement, and rolled steel tube is short, only adapt to thick-walled pipe, thin steel pipe moulding is irregular.
(3) two roller longitudinal rolling mills, the manufacturing cost height, roller consumes high, and processing pipe fitting dimensional discrepancy is big.
Two step of the hydraulic pressure ejector sleeve machine patent No. of acquisition national patent power: ZL98221393X only can at high temperature make steel pipe under the responsive to axial force that hydraulic pressure advances at present, expands directly through the tapering plug, can not subtract the production of wall expansion.
This utility model designer, succeed in developing the planetary rollers milling train eighties on the basis of A Saier three-roll pipe mill, and obtain national patent power, the patent No.: ZL92228712.The design of this type can not hole enlargement, and wall thickness reducing amount is little, only can produce short tube and become diameter processing.
The small-sized private enterprise of investigation steel pipe processing at present, it is flourish newly to found the factory, and still prolongs the production technology method of being born with the fifties, and energy waste is big, material percent defective height.
Summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of based on planetary rollers tube rolling support, propelling, planetary rollers spinning roll off, forward pull drawing multiple operation associating unit are pressed in liquid collecting, constitute tinuous production, can adapt to the different material of steel pipe, energy high temperature or cold plasticity moulding, the production efficiency height.
The purpose of this utility model is achieved in that
A kind of seamless steel pipe associating tube rolling unit comprises propulsion system, rolling mechanism, and drawing mechanism:
The rolling mechanism of planetary rollers is configured to: three planet rolls circumferentially wait the branch space uniform by 120 degree, the axis of each planet roll and rolled piece longitudinal axis have the space angle of cut of α value, each planet roll excircle is by the input section, Strain During Finishing Stage, deferent segment constitutes, the input section is for there being the cone of nip angle, Strain During Finishing Stage is the cone that advancing angle is arranged, deferent segment is the cone that output angle is arranged, each planet roll aligns the interior plug of rolling section of the plug pull bar in the pipe fitting endoporus, the two ends spindle nose of each planet roll is supported on a left side respectively, right bearing, this bearing respectively is contained in to be adjusted in the joint bearing block, this bearing block is contained in the chute of rolling rotating disk with slide rail, this rolling rotating disk is equipped with the screw of rolling pressure regulation screw mandrel coupling spindle bearing, this rolling rotating disk is contained in spiral arm with bearing and puts, this spiral arm cover respectively is fixed in a left side, right fixed frame, this left side, connecting with the rotating disk coupling bar between the right rolling rotating disk is integral body, this left side, right rolling rotating disk respectively is fixed with gear, the gears engaged of this gear and transmission system;
Rear in planet rolling system mechanism is provided with expansion mechanism, this expansion mechanism is configured to: three the circumferential five equilibrium of planet expansion roll spaces are arranged, the two ends spindle nose of each expansion roll is supported on a left side respectively, right bearing, this bearing respectively is contained in to be adjusted in the joint bearing block, this bearing block is contained in the chute of expansion rotating disk with slide rail, this expansion rotating disk is equipped with the screw of expansion pressure regulation screw mandrel coupling spindle bearing, this expansion rotating disk is contained in spiral arm with bearing and puts, this spiral arm cover respectively is fixed in a left side, right fixed frame, this left side, connecting with the rotating disk coupling bar between the right expansion rotating disk is integral body, this left side, right expansion rotating disk respectively is fixed with gear, the gears engaged of this gear and transmission system; This each expansion roll aligns the interior plug of expansion section of the plug pull bar in the pipe fitting endoporus; Be provided with tension force drawing mechanism at the rear portion of expansion mechanism.
Described tension force drawing mechanism is configured to: jaw type drawing dolly is housed in the horizontal line rail, and the jaw of this dolly clamps the front end of pipe fitting, and the end in addition of this dolly connects a ring chain mechanism, and this link chain mechanism connects power-driven system.
Described propulsion system is a hydraulic propelling system, is positioned at the front end of unit, and it is configured to: hydraulic cylinder connects propelling pipe fitting crossbeam, and this crossbeam connects hydraulic support with slide rail, installs by tube rolling spare on this crossbeam, and the plug pull bar is housed in the endoporus of this pipe fitting.
Be provided with steel pipe guiding edger roll device at the rear of described hydraulic support, this device has left and right two edger rolls, and the cylindrical of each edger roll has interior concave arc corresponding with the cylindrical of pipe fitting and contact the cylindrical of pipe fitting.
Be provided with electrical induction device between described guiding edger roll device and the rolling mechanism of planetary rollers, this electrical induction device aligns the interior plug of hole enlargement wall-reducting section taper of the plug pull bar in the pipe fitting endoporus;
Three planet rolls of described expansion mechanism become the value of angle of cut α between zero degree to two ten degree in the space.
Three expansion rolls of the rolling mechanism of described planetary rollers wait the branch space uniform by 120 degree on the nose circle face of expansion rotating disk, the axis of each expansion roll and the rolled piece longitudinal axis angle of cut that has living space, and the value of this angle of cut is between zero degree to two ten is spent.
Each assembly of described unit and dynamical system are contained on the frame.
The utility model has following actively useful effect:
The utility model unit, the planetary rollers tube rolling frame of innovative design novelty, same hydraulic-feed mechanism, tension force drawing mechanism form combined production line, roll into one for multi-functional, the operation pace is regulated in being arranged on the production line of each mechanism's compactness mutually, flexible, realized running synchronism, formed the combined production line unit, realized that hole enlargement subtracts wall, undergauge extends, the expansion moulding is carried out processing and forming, production efficiency height continuously at a production line.
The utility model Joint Production unit constitutes, its special process feature is respectively arranged, realize that multiple operation carries out continuously, processing is simple, production cost is low, production efficiency is high, and the roll cycle in service life is long, and workpiece measurement is accurate, elimination has reduced the bad defective of torsional deformation, has significantly improved steel tube surface quality.And improved the metal inside tissue, mechanical performance obtains to improve.With semi-finished product in the seamless steel tube production (hollow forging) is former material base pipe-through the rolling expansion of this unit, finally reach the trimmed size size, and be applicable to that old Guan Fuxin processes, drill pipe as oil sector, old pipes such as oil well casing, oil pipe, chemical pipeline are applicable to the welded tube hole enlargement, subtract wall, finished machined.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that the K of Fig. 1 is to partial top view;
Fig. 4 is the front view of the rolling mechanism of planetary rollers among Fig. 1;
Fig. 5 is the B-B cutaway view of Fig. 4;
Fig. 6 is that the rolling hole enlargement of planetary rollers of the present utility model subtracts the wall schematic diagram;
Fig. 7 is the wall roller deformation process schematic diagram that subtracts of the present utility model;
Fig. 8 is the utility model three roller tube reducing principle schematic;
Fig. 9 is the front view of expansion mechanism among Fig. 1;
Figure 10 is the C-C cutaway view of Fig. 9.
The specific embodiment
Accompanying drawing number
1. hydraulic cylinder
2. plug pull bar
201. plug in plug 202, the expansion section in the roll section
203, plug in the hole enlargement wall-reducting section tapering
3. advance the pipe fitting crossbeam
4. hydraulic support 5. steel pipes guiding edger roll device 6. electrical induction devices
7. be arranged on the moulding plug in steel tube inner hole chamber
8. rolling planetary rollers mechanism
801. fixed frame 802. rolling rotating disk 803. planet rolls
805. adjustment joint bearing block
806. roll pressure regulation screw mandrel 807. turntable bearings 809. rotating disks connect pull bar
810. spiral arm cover 811. input sections
812. Strain During Finishing Stage 813. deferent segments
9. steel pipe expansion mechanism
901. fixed frame 902. expansion rotating disks 903. planet expansion rolls
905. adjustment joint bearing block
906. expansion pressure regulation screw mandrel 907. turntable bearings
909. rotating disk connects pull bar 910. spiral arm covers
10. by tube rolling spare
11. jaw type drawing dolly 12. horizontal line rails
The link chain mechanism under 13. power is tended to act
β. nip angle φ. advancing angle γ. output angle
Please refer to Fig. 1, Fig. 2, Fig. 3, the new shape of this practicality is a kind of seamless steel pipe associating tube rolling unit, comprises propulsion system, rolling mechanism, drawing mechanism;
Please refer to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, the rolling mechanism 8 of planetary rollers is configured to: three planet rolls 803 circumferentially wait the branch space uniform by 120 degree, the axis of each planet roll 803 and rolled piece longitudinal axis have the space angle of cut of α value, each planet roll 803 excircle is by input section 811, Strain During Finishing Stage 812, deferent segment 813 constitutes, the input section is for there being the cone of nip angle β, Strain During Finishing Stage is the cone that advancing angle φ is arranged, deferent segment is the γ cone that output angle is arranged, each planet roll 803 aligns the interior plug 201 of rolling section of the plug pull bar 2 in pipe fitting 10 endoporus, the two ends spindle nose of each planet roll 803 is supported on a left side respectively, right bearing, this bearing respectively is contained in to be adjusted in the joint bearing block 805, this bearing block 805 is contained in the chute of rolling rotating disk 802 with slide rail, this rolling rotating disk 802 is equipped with the screw of rolling pressure regulation screw mandrel 806 coupling spindle bearings 805, this rolling rotating disk 802 is contained on the spiral arm cover 810 with bearing 807, this spiral arm cover 810 respectively is fixed in a left side, right fixed frame 801, this left side, connecting with rotating disk coupling bar 809 between the right rolling rotating disk 802 is integral body, this left side, right rolling rotating disk 802 respectively is fixed with gear, the gears engaged of this gear and transmission system;
Please refer to Fig. 1, Fig. 9, Figure 10, rear in planet rolling system mechanism 8 is furnished with expansion mechanism 9, this expansion mechanism 9 is configured to: three planet expansion roll 903 circumferential five equilibrium spaces are arranged, the two ends spindle nose of each expansion roll 903 is supported on a left side respectively, right bearing, this bearing respectively is contained in to be adjusted in the joint bearing block 905, this bearing block 905 is contained in the chute of expansion rotating disk 902 with slide rail, this expansion rotating disk 902 is equipped with the screw of expansion pressure regulation screw mandrel 906 coupling spindle bearings 905, this expansion rotating disk 902) is contained on the spiral arm cover 910 with bearing 907, this spiral arm cover 910 respectively is fixed in a left side, right fixed frame 901, this left side, connecting with rotating disk coupling bar 909 between the right expansion rotating disk 902 is integral body, this left side, right expansion rotating disk 902 respectively is fixed with gear, the gears engaged of this gear and transmission system; This each expansion roll aligns the interior plug 202 of expansion section of the plug pull bar 2 in pipe fitting 10 endoporus; Be provided with tension force drawing mechanism at the rear portion of expansion mechanism 9.
Described tension force drawing mechanism is configured to: jaw type drawing dolly 11 is housed in horizontal line rail 12, and the jaw of this dolly clamps the front end of pipe fitting 10, and the end in addition of this dolly connects a ring chain mechanism 13, and this link chain mechanism connects power-driven system.
Described propulsion system is a hydraulic propelling system, is positioned at the front end of unit, and it is configured to: hydraulic cylinder 1 connects propelling pipe fitting crossbeam 3, and this crossbeam connects hydraulic support 4 with slide rail, installs by tube rolling spare 10 on this crossbeam 3, and plug pull bar 2 is housed in the endoporus of this pipe fitting 10.
Be provided with steel pipe guiding edger roll device 5 at the rear of described hydraulic support 4, this device 5 has left and right two edger rolls, and the cylindrical of each edger roll has interior concave arc corresponding with the cylindrical of pipe fitting 10 and contact the cylindrical of pipe fitting 10.
Be provided with electrical induction device 6 between described guiding edger roll device 5 and the rolling mechanism 8 of planetary rollers, this electrical induction device 6 aligns the interior plug 203 of hole enlargement wall-reducting section taper of the plug pull bar 2 in pipe fitting 10 endoporus;
Three planet rolls 803 of the rolling mechanism 8 of described planetary rollers become the value of angle of cut α between zero degree to two ten degree in the space.
Three expansion rolls 903 of described expansion mechanism 9 wait the branch space uniform by 120 degree on the nose circle face of expansion rotating disk, the axis of each expansion roll 903 and the rolled piece longitudinal axis angle of cut that has living space, and the value of this angle of cut is between zero degree to two ten is spent.
Each assembly of described unit and dynamical system are contained on the frame.
Design feature of the present utility model:
This unit mainly contains with the lower part and constitutes combined production line:
Hydraulic propelling system: have special hydraulic power unit to produce fluid power piston rod crossbeam, level run operation before and after the jacking.
The 5th, steel pipe guiding edger roll device prolongs horizontal axis before steel pipe is rolled and sends heater to, as numbering 6 among Fig. 1.In Fig. 1, number 8 rolling planetary rollers roll formings again.Numbering 6 electrical induction devices according to the material condition of palsticity, can be regulated heating-up temperature flexibly among Fig. 1.
Link chain mechanism 13 under jaw type drawing dolly 11, horizontal line rail 12, the power drive is formed forward pull drawing mechanism.
Being arranged on the production line of above-mentioned each mechanism's compactness regulated the operation pace mutually, and be flexible, realized running synchronism, and forms the combined production line unit.
The utility model Joint Production unit constitutes, and its special process feature is respectively arranged, and realizes that multiple operation carries out continuously, enhances productivity, and has reduced processing cost.
The major technique feature:
Numbering 1,2,3,4 hydraulic propelling systems among Fig. 1 is conveying device in the steel pipe rolling process, it is again main outer active force in the pipe expanding processing, in hole enlargement wall-reducting section tapering under the radial effect of plug 203, in the advancing of hydraulic axial thrust, make steel pipe realize subtracting the wall hole enlargement.
Planetary rollers pipe mill construction system, the planetary rollers design has the roll of three uniform 120 degree, can change flexibly according to technological requirement and settle different rolls, realizes roll off or rotary press modelling high-precision tube.Can change the tube reducing roller on the roller frame, subtract wall roller etc.But the rolling use of a cover roll plurality of specifications.
Operation principle: the planetary rollers rolling mill moves as Fig. 4, Fig. 5, Fig. 7, roll changes round pipe fitting 10 in the rotation running of rolling rotating disk 802, rolling rotating disk 802 circles, planetary rollers turns around around pipe fitting, planetary rollers is under the rotation condition of roller dish, owing to rub with pipe fitting, and rotation, planetary rollers is rotated round pipe fitting, constitutes the central pass of pipe fitting forming, forces metal plastic deformation to flow, because roll is not parallel to central axial line, can adjust certain inclination angle a, make the metal lateral flow be transformed into axial advancement as Fig. 5 and flow, realize the purpose that moulding is advanced.The abrasion of the diameter of its two roll attenuate, can be by 806 depressing adjusting among Fig. 4, and the size of central deformed area is produced different specifications, so the roll cycle in service life is long, processes simply, and production cost is low.Roll wear is serious, and repeatedly loaded vehicle processing is reused.
In the associating unit, design among last expansion frame such as Fig. 1 and number 9, steel pipe passes through heating, the planetary rollers roll forming, advancing again is admitted to reeler.Though through roll forming, and size is accurate inadequately, has wall unevenness, circularity over tolerance needs further expansion, under the effect of expansion roller, based on the roll off tube wall, makes surface quality obtain good the improvement.
This machine design sees that by preceding machine drawing structure numbering 11,12,13 among Fig. 1 forms a complete operating mechanism, and the chain of dynamic driving rotates and forms that rectilinear motion, holder are moving, the jaw type dolly, draw the steel pipe straight ahead until deviating from the Rolling roller frame.
The main effect of this part: make moulding pipe metal structure produce certain axial stress, improve the stress condition when rolling, one draws two pressures, and plastic forming has not only improved surface quality, and has improved the metal inside tissue, and mechanical performance obtains to improve.
Preceding its technology meaning of drawing mechanism design is: because the technical characterstic of planetary rollers tube rolling flows for the metal lateral flow becomes vertically, obtain extension and can produce small torsional deformation in the steel pipe forming process.The drawing of design forward pull produces longitudinal pulling force, has both eliminated the bad defective that has reduced torsional deformation, and has significantly improved steel tube surface quality.
The above, the propelling of star roller hydraulic pressure, drawing, the associating tube rolling unit of the utility model design row.Its liquid collecting is beared down on one into, hole enlargement, subtract wall, reducing, expansion, forward pull drawing forming, technical process rolls into one, substituted traditional too many levels turnover processing technology, the planetary rollers tube rolling of having quoted external advanced person revolves and rolls the spreading principle, has realized the many kinds of a machine, the production of many specifications, has reduced energy consumption, improved production efficiency, not only have the remarkable economical meaning, improve working environment, reduced operation labor intensity.
Claims (8)
1. a seamless steel pipe associating tube rolling unit comprises propulsion system, rolling mechanism, and drawing mechanism is characterized in that:
Being configured to of planetary rollers rolling mechanism (8): three planet rolls (803) circumferentially wait the branch space uniform by 120 degree, the axis of each planet roll (803) and rolled piece longitudinal axis have the space angle of cut of α value, each planet roll (803) excircle is by input section (811), Strain During Finishing Stage (812), deferent segment (813) constitutes, the input section is for there being the cone of nip angle, Strain During Finishing Stage is the cone that advancing angle is arranged, deferent segment is the cone that output angle is arranged, each planet roll (803) aligns the interior plug (201) of rolling section of the plug pull bar (2) in pipe fitting (10) endoporus, the two ends spindle nose of each planet roll (803) is supported on a left side respectively, right bearing, this bearing respectively is contained in to be adjusted in the joint bearing block (805), this bearing block (805) is contained in the chute of rolling rotating disk (802) with slide rail, this rolling rotating disk (802) is equipped with the screw of rolling pressure regulation screw mandrel (806) coupling spindle bearing (805), this rolling rotating disk (802) is contained on the spiral arm cover (810) with bearing (807), this spiral arm cover (810) respectively is fixed in a left side, right fixed frame (801), this left side, connecting with rotating disk coupling bar (809) between the right rolling rotating disk (802) is integral body, this left side, right rolling rotating disk (802) respectively is fixed with gear, the gears engaged of this gear and transmission system;
Be provided with expansion mechanism (9) at the rear of planet rolling system mechanism (8), being configured to of these expansion mechanism (9): three planet expansion rolls (903) circumferentially five equilibrium space are arranged, the two ends spindle nose of each expansion roll (903) is supported on a left side respectively, right bearing, this bearing respectively is contained in to be adjusted in the joint bearing block (905), this bearing block (905) is contained in the chute of expansion rotating disk (902) with slide rail, this expansion rotating disk (902) is equipped with the screw of expansion pressure regulation screw mandrel (906) coupling spindle bearing (905), this expansion rotating disk (902) is contained on the spiral arm cover (910) with bearing (907), this spiral arm cover (910) respectively is fixed in a left side, right fixed frame (901), this left side, connecting with rotating disk coupling bar (909) between the right expansion rotating disk (902) is integral body, this left side, right expansion rotating disk (902) respectively is fixed with gear, the gears engaged of this gear and transmission system; This each expansion roll aligns the interior plug (202) of expansion section of the plug pull bar (2) in pipe fitting (10) endoporus; Be provided with tension force drawing mechanism at the rear portion of expansion mechanism (9).
2. associating tube rolling unit as claimed in claim 1, it is characterized in that: described tension force drawing mechanism is configured to: jaw type drawing dolly (11) is housed in horizontal line rail (12), the jaw of this dolly clamps the front end of pipe fitting (10), the end in addition of this dolly connects a ring chain mechanism (13), and this link chain mechanism connects power-driven system.
3. associating tube rolling unit as claimed in claim 1, it is characterized in that: described propulsion system is a hydraulic propelling system, be positioned at the front end of unit, it is configured to: hydraulic cylinder (1) connects propelling pipe fitting crossbeam (3), this crossbeam connects hydraulic support (4) with slide rail, this crossbeam (3) is gone up and is installed by tube rolling spare (10), and plug pull bar (2) is housed in the endoporus of this pipe fitting (10).
4. associating tube rolling unit as claimed in claim 1, it is characterized in that: be provided with steel pipe guiding edger roll device (5) at described hydraulic support (4) rear, this device (5) has left and right two edger rolls, and the cylindrical of each edger roll has interior concave arc corresponding with the cylindrical of pipe fitting (10) and contact the cylindrical of pipe fitting (10).
5. associating tube rolling unit as claimed in claim 1, it is characterized in that: at described guiding edger roll device (5)) and the rolling mechanism of planetary rollers (8) between be provided with electrical induction device (6), this electrical induction device (6) aligns plug (203) in the hole enlargement wall-reducting section taper of the plug pull bar (2) in pipe fitting (10) endoporus;
6. associating tube rolling unit as claimed in claim 1 is characterized in that: three planet rolls (803) of the rolling mechanism of described planetary rollers (8) become the value of angle of cut α between zero degree to two ten degree in the space.
7. associating tube rolling unit as claimed in claim 1, it is characterized in that: three expansion rolls (903) of described expansion mechanism (9) wait the branch space uniform by 120 degree on the nose circle face of expansion rotating disk, the axis of each expansion roll (903) and the rolled piece longitudinal axis angle of cut that has living space, the value of this angle of cut is between zero degree to two ten degree.
8. as claim 1 or 2 or 3 or 4 or 5 described associating tube rolling units, it is characterized in that: each assembly of described unit and dynamical system are contained on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047989 CN2690065Y (en) | 2004-04-09 | 2004-04-09 | Seamless steel pipe combined pipe mill group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047989 CN2690065Y (en) | 2004-04-09 | 2004-04-09 | Seamless steel pipe combined pipe mill group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690065Y true CN2690065Y (en) | 2005-04-06 |
Family
ID=34672128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420047989 Expired - Fee Related CN2690065Y (en) | 2004-04-09 | 2004-04-09 | Seamless steel pipe combined pipe mill group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690065Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102470418A (en) * | 2009-07-09 | 2012-05-23 | 莱菲尔德金属旋压机有限公司 | Method and apparatus for spinning |
| WO2018099403A1 (en) * | 2016-11-29 | 2018-06-07 | 上海泛华紧固系统有限公司 | Method and apparatus for stock rolling feeding, diameter reduction, alignment and derusting and product thereof |
| CN110052503A (en) * | 2019-05-27 | 2019-07-26 | 重庆钢铁(集团)有限责任公司 | A kind of seamless rectangular steel pipe forming device and forming method |
| CN110449478A (en) * | 2019-07-26 | 2019-11-15 | 安徽鑫旭新材料有限公司 | A kind of copper bar precision cold extrusion molding mould |
| CN114054507A (en) * | 2020-12-31 | 2022-02-18 | 中兴能源装备有限公司 | Transverse rolling tube process method |
| CN114425564A (en) * | 2022-03-09 | 2022-05-03 | 聊城市科环新材料科技有限公司 | Six-section roll shape and three-roll mill for rolling non-ferrous metal |
| CN115026132A (en) * | 2022-05-16 | 2022-09-09 | 燕山大学 | Rotary extrusion-rolling forming device and extrusion-rolling forming method for small pipe blank |
-
2004
- 2004-04-09 CN CN 200420047989 patent/CN2690065Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102470418A (en) * | 2009-07-09 | 2012-05-23 | 莱菲尔德金属旋压机有限公司 | Method and apparatus for spinning |
| CN102470418B (en) * | 2009-07-09 | 2014-09-17 | 莱菲尔德金属旋压机有限公司 | Method and apparatus for spinning and rolling |
| WO2018099403A1 (en) * | 2016-11-29 | 2018-06-07 | 上海泛华紧固系统有限公司 | Method and apparatus for stock rolling feeding, diameter reduction, alignment and derusting and product thereof |
| CN110052503A (en) * | 2019-05-27 | 2019-07-26 | 重庆钢铁(集团)有限责任公司 | A kind of seamless rectangular steel pipe forming device and forming method |
| CN110052503B (en) * | 2019-05-27 | 2024-02-02 | 宝武特冶航研科技有限公司 | Seamless rectangular steel pipe forming device and forming method |
| CN110449478A (en) * | 2019-07-26 | 2019-11-15 | 安徽鑫旭新材料有限公司 | A kind of copper bar precision cold extrusion molding mould |
| CN114054507A (en) * | 2020-12-31 | 2022-02-18 | 中兴能源装备有限公司 | Transverse rolling tube process method |
| CN114425564A (en) * | 2022-03-09 | 2022-05-03 | 聊城市科环新材料科技有限公司 | Six-section roll shape and three-roll mill for rolling non-ferrous metal |
| CN114425564B (en) * | 2022-03-09 | 2024-01-12 | 聊城市科环新材料科技有限公司 | Six-section roll shape and three-roller mill for nonferrous metal rolling |
| CN115026132A (en) * | 2022-05-16 | 2022-09-09 | 燕山大学 | Rotary extrusion-rolling forming device and extrusion-rolling forming method for small pipe blank |
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