CN106180280A - A kind of for heavy caliber seamless steel pipe end diameter-setting equipment and method - Google Patents
A kind of for heavy caliber seamless steel pipe end diameter-setting equipment and method Download PDFInfo
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- CN106180280A CN106180280A CN201610789163.1A CN201610789163A CN106180280A CN 106180280 A CN106180280 A CN 106180280A CN 201610789163 A CN201610789163 A CN 201610789163A CN 106180280 A CN106180280 A CN 106180280A
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- diameter
- mould
- steel pipe
- drive mechanism
- sizing
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- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
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- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of for heavy caliber seamless steel pipe end diameter-setting equipment, including the middle housing being connected with ground, the activity respectively of the surrounding of middle housing is equipped with a sliding tie rod, and one end of sliding tie rod is fixed on a back seat, and the sliding tie rod other end is fixed on an external diameter Die Box；The inside of external diameter Die Box cone match one end external diameter mould diametrically；Outer end diameter mould inside is arranged with one end internal diameter mould；A sizing chamber is formed between inner end diameter mould and outer end diameter mould；Inner end diameter mould inside connects a wedge, and wedge connects one end of an internal diameter drive mechanism, and the other end of internal diameter drive mechanism is fixed on middle housing, and middle housing is also fixed one end of an external diameter drive mechanism, and the other end of external diameter drive mechanism fixes back seat.This device achieves the accurate sizing of heavy caliber seamless steel pipe end by internal-and external diameter mould, and overcoming conventional roller-type sizing cannot be to the purpose of pipe end internal-and external diameter sizing simultaneously.
Description
Technical field
The invention belongs to seamless steel pipe finishing technique field, particular for heavy caliber seamless steel pipe end finishing diameter-setting equipment
And method.
Background technology
At present China's heavy caliber seamless steel pipe, main production is hot rolling large-diameter seamless steel pipe and heat expand bore without
Seam steel pipe, hot-expanding seamless steel tubes maximum specification is that 325mm-1220mm is the thickest for 200mm.Heavy caliber seamless steel pipe is widely used in
Severe geology gentle as under the conditions of oil gas, heating power, powder body, negative pressure air and the conveying of drainage medium, its tee pipe fitting also by
It is widely used in nuclear power production industry, causes the most attention of developed country.Steel pipe when laying such pipeline, tee pipe fitting will
Docking welds, so the ovality at butt welding of end parts and diameter tolerance are had strict demand, and such tubing in the most international category
Production technology can not realize the high-precision ovality in end and diameter dimension tolerance.
Traditional roll-type sizing method is for the biggest diameter of steel tube, the obvious aggravation of invar end effect, it is impossible to reach
The purpose that pipe end inside and outside footpath sizing and oval precision improve.Currently in order to complete pipeline docking, commonly used crop end
With ellipse to ellipse alleviation docking calculation, while damage waste is cut in increase, there is also the defect that butt welding manual adjustment difficulty is excessive.
Therefore a kind of sizing apparatus end elliptical degree and the diameter tolerance of heavy caliber seamless steel pipe accurately can processed is researched and developed
Become urgent.
Summary of the invention
In order to solve to produce and using the inner end diameter existing for heavy caliber seamless steel pipe, outside dimension precision both at home and abroad
Low problem, it is an object of the invention to propose one for heavy caliber seamless steel pipe end diameter-setting equipment.The present invention's is another
One purpose, it is provided that a kind of for heavy caliber seamless steel pipe end sizing method, is shunk by internal-and external diameter mould simultaneously or expands
Reach pipe end internal diameter, external diameter and the purpose accurately controlled of oval precision.
For realizing above-mentioned technical purpose, the present invention adopts the following technical scheme that and is achieved.
A kind of for heavy caliber seamless steel pipe end diameter-setting equipment, including the middle housing being connected with ground, described centre
The activity respectively of the surrounding of casing is equipped with a sliding tie rod, and one end of described sliding tie rod is fixed on a back seat, described slip
The pull bar other end is fixed on an external diameter Die Box；The inside cone match one end diametrically of described external diameter Die Box
External diameter mould；Described outer end diameter mould inside is arranged with one end internal diameter mould；Described inner end diameter mould and described end
A sizing chamber is formed between external diameter mould；Described inner end diameter mould inside connects a wedge, and described wedge connects an internal diameter and drives
One end of motivation structure, the other end of described internal diameter drive mechanism is fixed on described middle housing, the most solid on described middle housing
One end of a fixed external diameter drive mechanism, the other end of described external diameter drive mechanism fixes described back seat.
Preferably, described external diameter Die Box has a bellmouth, and described bellmouth has inner conical surface, described outer end diameter
Mould is provided with male cone (strobilus masculinus), and described male cone (strobilus masculinus) contacts with described inner conical surface.
Preferably, described internal diameter drive mechanism and described external diameter drive mechanism are fluid pressure type drive mechanism.
Preferably, described external diameter Die Box is welding type or cast type.
Preferably, described back seat is welding type or cast type.
Another object of the present invention, it is provided that a kind of for heavy caliber seamless steel pipe end sizing method, comprises the following steps:
Step 100: under original state, adjusts size and the chi of outer end diameter mould inner circle of inner end diameter mould cylindrical
Very little so that the size of outer end diameter mould inner circle, more than by the outside dimension of sizing seamless steel pipe, adjusts outside inner end diameter mould
Being smaller in size than by the internal diameter size of sizing seamless steel pipe of circle；
Step 200: sizing intracavity will be stretched into by the end of sizing seamless steel pipe；
Step 300: according to fixed diameter process needs, outer end diameter mould shrinks under the effect of external diameter drive mechanism or expands
, inner end diameter mould shrinks under the effect of internal diameter drive mechanism or expands, and reaches the purpose of steel tube end part plastic deformation,
And then its size is carried out accurate sizing.
Preferably, described fixed diameter process needs to have three kinds of situations, and the first is to be needed to expand by the internal diameter of the steel pipe of sizing
Big and external diameter needs to reduce；The second is, the described internal diameter by the steel pipe of sizing and external diameter are all reduced or be only external diameter contracting
Little；The third is that the described internal diameter by the steel pipe of sizing and external diameter all expand or be only that internal diameter expands.
Preferably, when described fixed diameter process need be the first time, now, described external diameter drive mechanism drive described end
External diameter mould shrinks, and described internal diameter drive mechanism drives the expansion of described inner end diameter mould；When described fixed diameter process needs are
During the second, now, described external diameter drive mechanism first drives described outer end diameter mould to shrink, the most described internal diameter drive mechanism
Drive described inner end diameter mould expand when described fixed diameter process need be the third time, now, described external diameter drive mechanism is first
Drive described outer end diameter mould to expand long, and described internal diameter drive mechanism drives described inner end diameter mould to expand.
Beneficial effects of the present invention: this device and method have employed described outer end diameter mould and described inner end diameter mould
Seamless steel pipe inner end diameter and external diameter is forced to produce plastic deformation, to reach accurate to seamless steel pipe inner end diameter and outside dimension
The purpose of sizing, significantly improves the oval precision of pipe end after sizing simultaneously.Overcoming conventional roller-type sizing cannot be right
The purpose of pipe end internal-and external diameter sizing simultaneously, it is to avoid the end of dimension overproof can only be cut away by traditional method, causes greatly
The problem of waste occurs.
Accompanying drawing explanation
The front view of Fig. 1 apparatus of the present invention；
The side view of Fig. 2 external diameter of the present invention Die Box；
The sectional view of Fig. 3 external diameter of the present invention Die Box；
The side view of Fig. 4 outer end diameter of the present invention mould；
The sectional view of Fig. 5 outer end diameter of the present invention mould；
Fig. 6 is the flow chart of the inventive method.
In figure: 1, external diameter Die Box；2, outer end diameter mould；3, inner end diameter mould；4, sliding tie rod；5, interior driving
Mechanism；6, middle housing；7, outer drive mechanism；8, back seat；9, by sizing seamless steel pipe；10, wedge；11, bellmouth；12, interior
Taper surface；13, male cone (strobilus masculinus)；14, inner end diameter mould cylindrical；15, inner end diameter mould cylindrical；16, outer end diameter mould inner circle.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Embodiment 1
In order to solve to produce and using heavy caliber (referring to the steel pipe of external diameter more than Ф 508mm) seamless steel pipe to be deposited both at home and abroad
The problem of end dimension of inner and outer diameters lack accuracy, it is an object of the invention to propose a kind of for big mouth as described in Figure 1
Seamless steel pipe end, footpath diameter-setting equipment, this device includes that the middle housing 6 being connected with ground, the surrounding of described middle housing 6 divide
Not activity is equipped with a sliding tie rod 4, and one end of described sliding tie rod 4 is fixed on a back seat 8, described sliding tie rod 4 another
End is fixed on an external diameter Die Box 1；The inside of described external diameter Die Box 1 cone match one end external diameter mould diametrically
Tool 2；Described outer end diameter mould 2 internal sleeve is provided with one end internal diameter mould 3；Outside described inner end diameter mould 3 is with described end
A sizing chamber 17 is formed between footpath mould 2；Described inner end diameter mould 3 is internal connects a wedge 10, and described wedge 10 connects one
One end of internal diameter drive mechanism 5, the other end of described internal diameter drive mechanism 5 is fixed on described middle housing 6, described intermediate box
Also fixing one end of an external diameter drive mechanism 7 on body 6, the other end of described external diameter drive mechanism 7 fixes described back seat 8.
Operation principle: owing to middle housing 6 is fixed with ground, external diameter Die Box 1 and back seat 8 are connected by sliding tie rod
Form tower structure, move once external diameter drive mechanism 7 and back seat 8 can be driven to move, in turn in the effect of sliding tie rod 4
Lower drive external diameter Die Box 1 moves, and described outer end diameter mould 2 is cone match with the cylindrical of external diameter mould, at the conical surface
Under effect, the male cone (strobilus masculinus) 13 of described outer end diameter mould 2 can produce contraction, is held by the external diameter of sizing seamless steel pipe 9
The dilating effect of portion's external diameter mould inner circle 16 and produce certain plastic deformation so that outside dimension is adjusted, reach
Purpose by the accurate sizing of internal diameter of sizing seamless steel pipe 9.When internal diameter drive mechanism 5 is moved, inner end diameter mould 3 is at wedge
The effect bottom internal diameter mould cylindrical 15 of 10 can increase, by the outer end diameter of sizing steel pipe by outer end diameter mould 2
Internal diameter contraction, is produced certain by the internal diameter of sizing seamless steel pipe 9 by the dilating effect of inner end diameter mould 3 external diameter
Plastic deformation, thus reach by the purpose of the accurate sizing of internal diameter of sizing seamless steel pipe 9.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 1,2,3,4,5, described external diameter Die Box 1 has a bellmouth 11,
Described bellmouth 11 has inner conical surface 12, and described outer end diameter mould 2 is provided with male cone (strobilus masculinus) 13, described male cone (strobilus masculinus) 13 and described inner cone
Face 12 contacts.Why relating to into the conical surface rather than inclined-plane, mainly reason is that the area that the conical surface contacts with each other is big, is more beneficial for
Described external diameter Die Box 1 coordinates with the motion of described outer end diameter mould 2.
The present invention is by described external diameter Die Box 1 and described outer end diameter mould 2 cone match, and is driving outside described
Radial dimension change can be realized under the cooperation of motivation structure 7 and the conical surface.
Embodiment 3
On the basis of embodiment 1, as it is shown in figure 1, described internal diameter drive mechanism 5 and described external diameter drive mechanism 7 are
Fluid pressure type drive mechanism.Why select fluid pressure type drive mechanism be because fluid pressure type drive structure can to drive during
Micro-displacement is controlled, and motor-driven mechanism cannot realize at this.
Described fluid pressure type drive mechanism is fluid pressure type drive mechanism common on market, does not repeats them here.
Embodiment 4
On the basis of embodiment 1, described external diameter Die Box 1 is welding type or cast type, refers specifically to, described external diameter
Die Box 1 can be with being welded, it is also possible to casting forms, and the processing so making external diameter Die Box 1 is more selective,
The most more convenient, cost-effective.
Described back seat 8 is welding type or cast type, refers specifically to, and described back seat 8 can be with being welded, it is also possible to casting
Forming, the processing so making back seat 8 is more selective, the most more convenient, cost-effective.
Embodiment 5
In order to solve to produce and using the end dimension of inner and outer diameters precision existing for heavy caliber seamless steel pipe low both at home and abroad
Under problem, it is an object of the invention to propose a kind of for heavy caliber seamless steel pipe end sizing method as described in Figure 6,
Comprise the concrete steps that:
Step 100: under original state, adjusts the size of inner end diameter mould cylindrical 15 and outer end diameter mould inner circle 16
Size so that the size of outer end diameter mould inner circle 16, more than by the outside dimension of sizing seamless steel pipe 9, adjusts inner end diameter mould
Being smaller in size than by the internal diameter size of sizing seamless steel pipe 9 of tool cylindrical 15；
Step 200: will be stretched in sizing chamber 17 by the end of sizing seamless steel pipe 9；
Step 300: according to fixed diameter process needs, outer end diameter mould 2 shrink under the effect of external diameter drive mechanism 7 or
Expansion, inner end diameter mould 3 shrinks under the effect of internal diameter drive mechanism 5 or expands, reaching steel tube end part plastic deformation
Purpose, and then its size is carried out accurate sizing.
This method have employed described outer end diameter mould 2 and described inner end diameter mould 3 forces seamless steel pipe inner end diameter
Plastic deformation is produced with external diameter, to reach the purpose of sizing accurate to seamless steel pipe 9 inner end diameter and outside dimension, the most notable
Improve the oval precision of pipe end after sizing.Overcoming conventional roller-type sizing cannot be simultaneously fixed to pipe end internal-and external diameter
The purpose in footpath, it is to avoid the end of dimension overproof can only be cut away by traditional method, causes the problem of waste greatly to occur.
Embodiment 6
On the basis of embodiment 5, described fixed diameter process needs to have three kinds, and the first is, by the steel pipe of sizing
Footpath needs to expand and needs to reduce with external diameter；The second is, the described internal diameter by the steel pipe 9 of sizing and external diameter is all reduced or only
It it is reduced diameter；The third is that the described internal diameter by the steel pipe 9 of sizing and external diameter all expand or be only that internal diameter expands.
When described fixed diameter process need be the first time, now, described external diameter drive mechanism 7 drives described outer end diameter mould
Tool 2 shrinks, and described internal diameter drive mechanism 5 drives described inner end diameter mould 3 to expand；Need to be second when described fixed diameter process
When planting, now, described external diameter drives machine 7 first to drive described outer end diameter mould 2 to shrink, and the most described internal diameter drive mechanism 5 is driven
Dynamic described inner end diameter mould 3 expand when described fixed diameter process need be the third time, now, described external diameter drive mechanism 7 is first
Drive described outer end diameter mould 2 to expand long, and described internal diameter drive mechanism 5 drives described inner end diameter mould 3 to expand.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. one kind is used for heavy caliber seamless steel pipe end diameter-setting equipment, it is characterised in that: include the middle housing being connected with ground
(6), the surrounding activity respectively of described middle housing (6) is equipped with a sliding tie rod (4), and one end of described sliding tie rod (4) is solid
Being scheduled on a back seat (8), described sliding tie rod (4) other end is fixed on an external diameter Die Box (1)；Described external diameter die box
The inside of body (1) cone match one end external diameter mould (2) diametrically；Described outer end diameter mould (2) internal sleeve is provided with one
Inner end diameter mould (3)；A sizing chamber (17) is formed between described inner end diameter mould (3) and described outer end diameter mould (2)；
Described inner end diameter mould (3) is internal connects a wedge (10), and described wedge (10) connects the one of an internal diameter drive mechanism (5)
End, the other end of described internal diameter drive mechanism (5) is fixed on described middle housing (6), the most fixing on described middle housing (6)
One end of one external diameter drive mechanism (7), the other end of described external diameter drive mechanism (7) fixes described back seat (8).
It is the most according to claim 1 for heavy caliber seamless steel pipe end diameter-setting equipment, it is characterised in that: described external diameter mould
Tool casing (1) has a bellmouth (11), and described bellmouth (11) has inner conical surface (12), and described outer end diameter mould (2) sets
Male cone (strobilus masculinus) (13), described male cone (strobilus masculinus) (13) is had to contact with described inner conical surface (12).
It is the most according to claim 1 for heavy caliber seamless steel pipe end diameter-setting equipment, it is characterised in that: described internal diameter drives
Motivation structure (5) and described external diameter drive mechanism (7) are fluid pressure type drive mechanism.
It is the most according to claim 1 for heavy caliber seamless steel pipe end diameter-setting equipment, it is characterised in that: described external diameter mould
Tool casing (1) is welding type or cast type.
It is the most according to claim 1 for heavy caliber seamless steel pipe end diameter-setting equipment, it is characterised in that: described back seat
(8) it is welding type or cast type.
6. based on the sizing method for heavy caliber seamless steel pipe end diameter-setting equipment described in claim 1, its feature
It is: comprise the following steps:
Step 100: under original state, adjusts size and outer end diameter mould inner circle (16) of inner end diameter mould cylindrical (15)
Size so that the size of outer end diameter mould inner circle (16), more than by the outside dimension of sizing seamless steel pipe (9), adjusts in end
Being smaller in size than by the internal diameter size of sizing seamless steel pipe (9) of footpath mould cylindrical (15)；
Step 200: will be stretched in sizing chamber (20) by the end of sizing seamless steel pipe (9)；
Step 300: according to fixed diameter process needs, outer end diameter mould (2) shrink under the effect of external diameter drive mechanism (7) or
Expansion, inner end diameter mould (3) shrinks under the effect of internal diameter drive mechanism (5) or expands, and reaches steel tube end part plasticity and becomes
The purpose of shape, and then its size is carried out accurate sizing.
It is the most according to claim 6 for heavy caliber seamless steel pipe end sizing method, it is characterised in that: described sizing work
Skill needs to have three kinds, and the first is that being needed to expand by the internal diameter of the steel pipe (9) of sizing needs to reduce with external diameter；The second is,
By the internal diameter of the described steel pipe by sizing (9) with external diameter all reduces or be only reduced diameter；The third is, described by sizing
The internal diameter of steel pipe (9) and external diameter all expand or are only that internal diameter expands.
It is the most according to claim 6 for heavy caliber seamless steel pipe end sizing method, it is characterised in that:
When described fixed diameter process need be the first time, now, described external diameter drive mechanism (7) drives described outer end diameter mould
(2) shrink, and described internal diameter drive mechanism (5) drives described inner end diameter mould (3) to expand；When described fixed diameter process needs are
During the second, now, described external diameter drive mechanism (7) first drives described outer end diameter mould (2) to shrink, and the most described internal diameter drives
Motivation structure (5) drive described inner end diameter mould (3) expand when described fixed diameter process need be the third time, now, described outside
It is long that footpath drive mechanism (7) first drives described outer end diameter mould (2) to expand, and described internal diameter drive mechanism (5) drives described end
Internal diameter mould (3) expands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789163.1A CN106180280B (en) | 2016-08-31 | 2016-08-31 | One kind is used for heavy caliber seamless steel pipe end sizing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789163.1A CN106180280B (en) | 2016-08-31 | 2016-08-31 | One kind is used for heavy caliber seamless steel pipe end sizing method |
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| CN106180280A true CN106180280A (en) | 2016-12-07 |
| CN106180280B CN106180280B (en) | 2018-03-13 |
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| CN201610789163.1A Active CN106180280B (en) | 2016-08-31 | 2016-08-31 | One kind is used for heavy caliber seamless steel pipe end sizing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623489A (en) * | 2017-02-14 | 2017-05-10 | 珠海格力智能装备技术研究院有限公司 | Processing equipment for pipe body |
| CN106903231A (en) * | 2017-01-24 | 2017-06-30 | 宁波菲力克汽配有限公司 | A kind of port forming machine |
| CN107597891A (en) * | 2017-10-10 | 2018-01-19 | 芜湖美奥机械科技有限公司 | A kind of compressor of air conditioner main casing internal diameter apparatus for correcting |
| CN108620468A (en) * | 2018-04-08 | 2018-10-09 | 湖北峰佑高端装备制造有限公司 | It is a kind of that efficiently quickly pipe end plays muscle machine |
| CN109277437A (en) * | 2018-10-10 | 2019-01-29 | 中国航发哈尔滨东安发动机有限公司 | Bind round circle device in a kind of thin-wall tube shaft end portion |
| CN110153298A (en) * | 2019-06-27 | 2019-08-23 | 烟台豪德博尔机械设备有限公司 | Steel pipe bell and spigot automatic moulding production line |
| CN110202040A (en) * | 2019-07-05 | 2019-09-06 | 江苏双友智能装备科技股份有限公司 | Steel pipe socket molding machine |
| CN113385564A (en) * | 2021-07-19 | 2021-09-14 | 山东永丰液压机械有限公司 | Disposable pipe thread forming machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU623617A1 (en) * | 1977-04-19 | 1978-09-15 | Предприятие П/Я М-5671 | Apparatus for varying tube end diameter |
| CN1042673A (en) * | 1988-11-12 | 1990-06-06 | 哈尔滨工业大学 | Large-diameter steel pipe pipe-end straightening method and device |
| CN201543688U (en) * | 2009-10-20 | 2010-08-11 | 宝山钢铁股份有限公司 | Pipe end ovality correcting device for large-caliber longitudinal welded pipe |
| CN202207724U (en) * | 2011-08-31 | 2012-05-02 | 西部钛业有限责任公司 | Sag repair device for thin-wall metal tube |
| CN206104599U (en) * | 2016-08-31 | 2017-04-19 | 中国重型机械研究院股份公司 | Be used for heavy -calibre seamless steel pipe tip sizing device |
-
2016
- 2016-08-31 CN CN201610789163.1A patent/CN106180280B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU623617A1 (en) * | 1977-04-19 | 1978-09-15 | Предприятие П/Я М-5671 | Apparatus for varying tube end diameter |
| CN1042673A (en) * | 1988-11-12 | 1990-06-06 | 哈尔滨工业大学 | Large-diameter steel pipe pipe-end straightening method and device |
| CN201543688U (en) * | 2009-10-20 | 2010-08-11 | 宝山钢铁股份有限公司 | Pipe end ovality correcting device for large-caliber longitudinal welded pipe |
| CN202207724U (en) * | 2011-08-31 | 2012-05-02 | 西部钛业有限责任公司 | Sag repair device for thin-wall metal tube |
| CN206104599U (en) * | 2016-08-31 | 2017-04-19 | 中国重型机械研究院股份公司 | Be used for heavy -calibre seamless steel pipe tip sizing device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903231A (en) * | 2017-01-24 | 2017-06-30 | 宁波菲力克汽配有限公司 | A kind of port forming machine |
| CN106623489A (en) * | 2017-02-14 | 2017-05-10 | 珠海格力智能装备技术研究院有限公司 | Processing equipment for pipe body |
| CN107597891A (en) * | 2017-10-10 | 2018-01-19 | 芜湖美奥机械科技有限公司 | A kind of compressor of air conditioner main casing internal diameter apparatus for correcting |
| CN108620468A (en) * | 2018-04-08 | 2018-10-09 | 湖北峰佑高端装备制造有限公司 | It is a kind of that efficiently quickly pipe end plays muscle machine |
| CN109277437A (en) * | 2018-10-10 | 2019-01-29 | 中国航发哈尔滨东安发动机有限公司 | Bind round circle device in a kind of thin-wall tube shaft end portion |
| CN110153298A (en) * | 2019-06-27 | 2019-08-23 | 烟台豪德博尔机械设备有限公司 | Steel pipe bell and spigot automatic moulding production line |
| CN110153298B (en) * | 2019-06-27 | 2024-06-11 | 豪德博尔(山东)智能装备有限公司 | Automatic forming production line for steel pipe faucet |
| CN110202040A (en) * | 2019-07-05 | 2019-09-06 | 江苏双友智能装备科技股份有限公司 | Steel pipe socket molding machine |
| CN113385564A (en) * | 2021-07-19 | 2021-09-14 | 山东永丰液压机械有限公司 | Disposable pipe thread forming machine |
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| Publication number | Publication date |
|---|---|
| CN106180280B (en) | 2018-03-13 |
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