CN101954422A - Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness - Google Patents
Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness Download PDFInfo
- Publication number
- CN101954422A CN101954422A CN2010101000284A CN201010100028A CN101954422A CN 101954422 A CN101954422 A CN 101954422A CN 2010101000284 A CN2010101000284 A CN 2010101000284A CN 201010100028 A CN201010100028 A CN 201010100028A CN 101954422 A CN101954422 A CN 101954422A
- Authority
- CN
- China
- Prior art keywords
- spinning
- steel cylinder
- spinning wheel
- wall thickness
- plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 178
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 102
- 239000010959 steel Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004080 punching Methods 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Images
Abstract
The invention relates to a spinning deviation-correcting method for a punching-pulling steel bottle tube wall thickness, belonging to the manufacturing technique of high pressure containers. The spinning deviation-correcting method is characterized in that a steel bottle blank (1) with nonuniform tube wall thicknesses, which is thermally processed by pulling and punching, is sleeved on a core rod (2) of an internally spinning deviation-correcting distortion tool, and a spinning wheel (3) performs relative rotation spinning and axial feed on the outer surface of the steel bottle blank. Under the spinning deviation-correcting pressure of the spinning wheel (3) and the outer surface of the core rod (2), the punching-pulling steel bottle blank (1) is coldly and axially processed into a spun and deviation-corrected tube wall (5) point by point from point to line and from line to surface by utilizing metal plasticity, and in the spinning and deviation-correcting process, the wall thickness deviation of the punching-pulling steel bottle blank (1) is corrected so as to improve the wall thickness precision of the steel bottle and the quality of the surfaces of an inner circle and an outer circle.
Description
Technical field
The present invention relates to a kind of punching pulling steel cylinder pipe wall thickness spinning method for correcting error, belong to the manufacturing technology field of high-pressure bottle.
Background technology
At present, known processes process with metal base making steel cylinder pipe is that metal base is heated, put into punching hydraulic press die, with jumper bar obstructed round counterbore of metal base centre punch is formed the punching base, the punching blank outer surface is also circular, at once the punching base is put into pulling machine material feeding platform again, the push rod of pulling machine inserts in the punching base, at punching base front-axle beam pulling mould bases and device for discharging are installed, can lay multiple tracks ring mould bases and roller die frame above it, the push rod of band punching base is under the promotion of main water vat, make the punching base fast by ring mould bases and roller die frame, it is rolling that the punching base of high temperature is carried out the axial pulling of multi-pass, thereby process the steel cylinder pipe of end cap, and the internal diameter of body is determined by the push rod external diameter, external diameter and wall thickness are determined by ring mould and roller die, be installed in the device for discharging closure of ring mould bases and roller die frame back, push rod rollback under the pulling of main water vat is deviate from the steel cylinder pipe of moulding from push rod, finishes steel cylinder pipe processing.But steel cylinder pipe wall unevenness (as the steel cylinder of Φ 267mm wall thickness 5.8mm, the wall thickness difference reaches 2.5mm), the surfaces externally and internally roughness of this technology mode processing are poor, directly influence the crudy of steel cylinder pipe.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this invention is to provide a kind of punching pulling steel cylinder pipe wall thickness spinning method for correcting error, the steel cylinder blank (1) of the tube body wall thickness ununiformity that punching pulling hot-working is gone out carries out spinning correction cold working again, in spinning correction process, the blank wall thickness deviation is corrected, thereby improved steel cylinder inner and outer round surface quality and wall thickness accuracy.
For achieving the above object, the present invention adopts following technical scheme:
Punching pulling steel cylinder pipe wall thickness spinning method for correcting error of the present invention as shown in Figure 1, it is characterized in that steel cylinder blank (1) cover is through on the inner spinning correction warp tool plug (2), plug (2) is installed on the main shaft (7), main shaft (7) is installed in the main spindle box (8), spinning wheel (3) is that even distribution the in center is installed on the spinning wheel holder (4) with the rolling centerline, diagram six spinning wheels (3) that have been divided into cloth, the spinning wheel number of other quantity that also evenly distributes, spinning wheel (3) can be with the rotation of self centre of gyration, and axial force and radial load can bear the spinning correction time.Spinning correction beginning after spinning wheel (3) touches steel cylinder blank (1) right part, in the spinning correction process, do relative motion at rolling centerline direction steel cylinder blank (1) and plug (2) with spinning wheel (3) spinning wheel holder (4) assembly, form the feed motion in the spinning correction process, can adopt following form to realize: steel cylinder blank (1) and plug (2) axial restraint, spinning wheel (3) spinning wheel holder (4) assembly moves; Spinning wheel (3) spinning wheel holder (4) assembly is fixed, and steel cylinder blank (1) and plug (2) move axially; Steel cylinder blank (1) and plug (2) all move and do simultaneously relative motion with spinning wheel (3) spinning wheel holder (4) assembly.
(Fig. 1 M-M is to view) steel cylinder blank (1) and plug (2) are made relative rotary motion with spinning wheel (3) spinning wheel holder (4) assembly on the rolling centerline circumferencial direction, form the spinning motion in the spinning correction process, can adopt following form to realize: steel cylinder blank (1) is active rotation under internal core rod (2) drives, and spinning wheel (3) spinning wheel holder (4) assembly does not change; Steel cylinder blank (1) and plug (2) do not change, spinning wheel (3) spinning wheel holder (4) assembly active rotation.
Spinning wheel (3) relatively rotates at steel cylinder blank (1) outer surface, under the draught pressure of spinning wheel (3) and plug (2) outer surface, utilize the plasticity of metal, by putting line, to pointwise steel cylinder blank (1) is cold worked into the tube wall (5) that spinning is rectified a deviation out to over glaze by line, after the whole spinning of the uneven wall thickness of steel cylinder blank (1) being rectified a deviation into the tube wall (5) that spinning rectifies a deviation out, discharging rod (6) ejects the uniform steel cylinder of wall thickness from plug (2), finish steel cylinder blank (1) spinning correction processing overall process.
As Fig. 1 M-M to shown in the view, with the roll line external diameters of the center and the tube wall (5) of rectifying a deviation out with the circumscribed circle decision spinning of six (a plurality of) spinning wheels, the internal diameter of the tube wall that spinning is rectified a deviation out (5) is by the decision of the external diameter of plug (2), and external diameter is concentric in making in the spinning correction process, improves the steel cylinder pipe wall thickness accuracy.The concentricity of the circle that the external diameter of plug (2) and six (a plurality of) spinning wheels are circumscribed is guaranteed by equipment, tool processes precision and installation accuracy, reach 2.5mm steel cylinder blank (1) after rotary pressing processing as Φ 271X8mm wall thickness difference, can be processed into the steel cylinder of Φ 267X5.8mm, the wall thickness difference can be controlled in the 0.5mm, steel cylinder blank (1) properties of product after rotary pressing processing significantly improve in addition, institutional framework and the mechanical property of material all changes after the spinning, and the tiny and formation of grain size has fibrous feature; Intensity, yield strength and hardness all have raising, and intensity improves 60%～90%; Steel cylinder surfaces externally and internally roughness Ra value reduces.Reaching under the situation of identical performance, through the steel cylinder weight saving of spinning correction, for the vehicle-mounted gas cylinder of CNG, gas cylinder weight reduces and has significant meaning, and has reduced the consumption of steel cylinder material.
As Fig. 5 is the partial enlarged drawing of deformed region I shown in Figure 1 portion, as can be seen from Figure, spinning wheel (3) relatively rotates at steel cylinder blank (1) outer surface, under the draught pressure of spinning wheel (3) and plug (2) outer surface, utilize the plasticity of metal, by putting line, to pointwise steel cylinder blank (1) is cold worked into the tube wall (5) that spinning is rectified a deviation out to over glaze by line.
The advantage of punching pulling steel cylinder pipe wall thickness spinning method for correcting error of the present invention is the steel cylinder blank
(1) after spinning correction processing, finished product steel cylinder wall thickness difference can be controlled in the 0.5mm; The institutional framework and the mechanical property of material all change, and grain size is tiny and form and to have fibrous feature, and properties of product significantly improve; Intensity, yield strength and hardness all have raising, and intensity improves 60%～90%; Steel cylinder surfaces externally and internally roughness Ra value reduces.Reaching under the situation of identical performance, through the steel cylinder weight saving of spinning correction, reducing the consumption of steel cylinder material, for the vehicle-mounted gas cylinder of CNG, gas cylinder weight reduces and has significant meaning, and the low more price of the gas cylinder weight of same performance is high more on the contrary.
Description of drawings
Fig. 1 is a punching pulling steel cylinder pipe wall thickness spinning method for correcting error schematic diagram of the present invention;
Fig. 2 is punching pulling steel cylinder pipe wall thickness spinning correction embodiment 1 schematic diagram of the present invention;
Fig. 3 is punching pulling steel cylinder pipe wall thickness spinning correction embodiment 2 schematic diagrames of the present invention;
Fig. 4 is punching pulling steel cylinder pipe wall thickness spinning correction embodiment 3 schematic diagrames of the present invention;
Fig. 5 is the partial enlarged drawing of deformed region I shown in Figure 1 portion.
Among the figure, 1 is steel cylinder blank (1), and 2 is plug (2), and 3 is spinning wheel (3), and 4 is spinning wheel holder (4), 5 tube walls (5) of rectifying a deviation out for spinning, and 6 is discharging rod (6), and 7 is main shaft (7), and 8 is main spindle box (8), and 9 is spinning seat (9).
The specific embodiment
The embodiment of the invention 1 as shown in Figure 2, steel cylinder blank (1) cover is through on the inner spinning correction warp tool plug (2), plug (2) is installed on the main shaft (7), main shaft (7) is installed in the fixing main spindle box (8), and can be with and make steel cylinder blank (1) and carry out active rotation, main shaft (7) can only rotate, and is subjected to main spindle box (8) inner bearing location and can bears the axial force that the spinning correction adds man-hour at axial direction.Spinning wheel (3) is that even distribution the in center is installed on the spinning wheel holder (4) with the rolling centerline, diagram six spinning wheels (3) that have been divided into cloth, the spinning wheel number of other quantity that also evenly distributes, spinning wheel (3) can be with the rotation of self centre of gyration, and axial force and radial load can bear the spinning correction time.Spinning wheel (3) spinning wheel holder (4) assembly can be done spinning correction feed motion in the rolling centerline direction.(Fig. 2 M-M is to view) spinning wheel holder (4) does not rotate on the rolling centerline circumferencial direction, and plug (2) band is done steel cylinder blank (1) rotation, forms the spinning motion in the spinning correction process.Touch spinning correction beginning behind steel cylinder blank (1) right part of rotation when spinning wheel (3).Spinning wheel (3) relatively rotates at steel cylinder blank (1) outer surface, under the draught pressure of spinning wheel (3) and plug (2) outer surface, utilize the plasticity of metal, by putting line, to pointwise steel cylinder blank (1) spinning is rectified a deviation into the tube wall (5) that spinning is rectified a deviation out to over glaze by line, after the uneven wall thickness of steel cylinder blank (1) all being spun into the tube wall (5) that spinning rectifies a deviation out, discharging rod (6) ejects the uniform steel cylinder of wall thickness from plug (2), finish steel cylinder blank (1) rotary pressing processing overall process.
The embodiment of the invention 2 as shown in Figure 3, steel cylinder blank (1) cover is through on the inner spinning correction warp tool plug (2), plug (2) is installed on the main shaft (7), main shaft (7) be installed in can axially movable main spindle box (8) in, main shaft (7) can be with and make steel cylinder blank (1) and carry out active rotation, main shaft (7) can only rotate, the axial force when axial direction is subjected to main spindle box (8) inner bearing location and can bears rotary pressing processing.Spinning wheel (3) is that even distribution the in center is installed on the spinning wheel holder (4) with the rolling centerline, diagram six spinning wheels (3) that have been divided into cloth, the spinning wheel number of other quantity that also evenly distributes, spinning wheel (3) can be with the rotation of self centre of gyration, and axial force and radial load can bear spinning the time.Spinning wheel holder (4) is fixed, and on the rolling centerline circumferencial direction (Fig. 3 M-M is to view), plug (2) band is done steel cylinder blank (1) rotation, forms the spinning motion in the spinning correction process.Plug (2) made by main spindle box (8) band and steel cylinder blank (1) is done axially-movable, forms the feed motion in the spinning correction process.Touch spinning correction beginning behind steel cylinder blank (1) right part of rotation when spinning wheel (3).Spinning wheel (3) relatively rotates at steel cylinder blank (1) outer surface, under the draught pressure of spinning wheel (3) and plug (2) outer surface, utilize the plasticity of metal, by putting line, to pointwise steel cylinder blank (1) is cold worked into the tube wall (5) that spinning is rectified a deviation out to over glaze by line, after the uneven wall thickness of steel cylinder blank (1) all being spun into the tube wall (5) that spinning rectifies a deviation out, discharging rod (6) ejects the uniform steel cylinder of wall thickness from plug (2), finish steel cylinder blank (1) rotary pressing processing overall process.
The embodiment of the invention 3 as shown in Figure 4, steel cylinder blank (1) cover is through on the inner spinning correction warp tool plug (2), plug (2) is installed on the main shaft (7), main shaft (7) be fixedly mounted on can axially movable main spindle box (8) on, main shaft (7) plug (2) can not rotate, main spindle box (8) can be with and make plug (2) and steel cylinder blank (1) is done axially-movable, forms the feed motion in the spinning correction process.Spinning wheel (3) is that even distribution the in center is installed on the spinning wheel holder (4) with the rolling centerline, and spinning wheel holder (4) is installed in the spinning seat (9), spinning wheel holder (4) can be in spinning seat (9) is the center rotation with the rolling centerline, and spinning seat (9) is fixed, diagram six spinning wheels (3) that have been divided into cloth, the spinning wheel number of other quantity that also evenly distributes, spinning wheel (3) can be with the rotation of self centre of gyration, and axial force and radial load can bear the spinning correction time.On the rolling centerline circumferencial direction (Fig. 4 M-M is to view), spinning wheel holder (4) band is made spinning wheel (3) and is rotated around rolling centerline, forms the spinning motion in the spinning correction process.Spinning correction beginning after spinning wheel (3) touches straight-line steel cylinder blank (1) right part.Spinning wheel (3) relatively rotates at steel cylinder blank (1) outer surface, under the draught pressure of spinning wheel (3) and plug (2) outer surface, utilize the plasticity of metal, by putting line, to pointwise steel cylinder blank (1) is cold worked into the tube wall (5) that spinning is rectified a deviation out to over glaze by line, after the uneven wall thickness of steel cylinder blank (1) all being spun into the tube wall (5) that spinning rectifies a deviation out, discharging rod (6) ejects the uniform steel cylinder of wall thickness from plug (2), finish steel cylinder blank (1) rotary pressing processing overall process.
Although the present invention is illustrated and describes according to three embodiment, purpose is to make an explanation by literal and diagram, and does not lie in the protection domain that limits claim.Various variations on the described specific embodiment of specification; be conspicuous to those skilled in the art; and be in the protection domain of claim and equivalent technologies thereof any change of claim of the present invention, content that modification all belongs to the present invention's protection of not breaking away from.
Claims (6)
1. punching pulling steel cylinder pipe wall thickness spinning method for correcting error, it is characterized in that steel cylinder blank (1) cover is through on the inner spinning correction warp tool plug (2), plug (2) is installed on the main shaft (7), main shaft (7) is installed in the main spindle box (8), spinning wheel (3) is that even distribution the in center is installed on the spinning wheel holder (4) with the rolling centerline, spinning correction beginning after spinning wheel (3) touches steel cylinder blank (1) right part, in the spinning correction process, do relative motion at rolling centerline direction steel cylinder blank (1) and plug (2) with spinning wheel (3) spinning wheel holder (4) assembly, form the feed motion in the spinning correction process, steel cylinder blank (1) and plug (2) are made relative rotary motion with spinning wheel (3) spinning wheel holder (4) assembly on the rolling centerline circumferencial direction, form the spinning motion in the spinning correction process, spinning wheel (3) relatively rotates at steel cylinder blank (1) outer surface, under the draught pressure of spinning wheel (3) and plug (2) outer surface, utilize the plasticity of metal, by putting line, to pointwise steel cylinder blank (1) is processed into the tube wall (5) that spinning is rectified a deviation out to over glaze by line.
2. by the described punching pulling of claim 1 steel cylinder pipe wall thickness spinning method for correcting error, it is characterized in that described spinning wheel (3) is that even distribution the in center is installed on the spinning wheel holder (4) with the rolling centerline, its even distributed quantity can be six spinning wheels (3), the spinning wheel number of other quantity that also evenly distributes, spinning wheel (3) can be with the rotation of self centre of gyration, and axial force and radial load can bear the spinning correction time.
3. by the described punching pulling of claim 1 steel cylinder pipe wall thickness spinning method for correcting error, it is characterized in that described is the external diameter of center and the tube wall (5) of rectifying a deviation out with the circumscribed circle decision spinning of a plurality of spinning wheels with the roll line, the internal diameter of the tube wall that spinning is rectified a deviation out (5) is the external diameter decision by plug (2), and external diameter is concentric in making in the spinning correction process, improves the steel cylinder pipe wall thickness accuracy.
4. by the described punching pulling of claim 1 steel cylinder pipe wall thickness spinning method for correcting error, it is characterized in that the feed motion in the described spinning correction process, can adopt following form to realize: steel cylinder blank (1) and plug (2) axial restraint, spinning wheel (3) spinning wheel holder (4) assembly moves; Spinning wheel (3) spinning wheel holder (4) assembly is fixed, and steel cylinder blank (1) and plug (2) move axially; Steel cylinder blank (1) and plug (2) all move and do simultaneously relative motion with spinning wheel (3) spinning wheel holder (4) assembly.
5. by the described punching pulling of claim 1 steel cylinder pipe wall thickness spinning method for correcting error, it is characterized in that the spinning motion in the described spinning correction process, can adopt following form to realize: steel cylinder blank (1) is active rotation under internal core rod (2) drives, and spinning wheel (3) spinning wheel holder (4) assembly does not change; Steel cylinder blank (1) and plug (2) do not change, spinning wheel (3) spinning wheel holder (4) assembly active rotation.
6. by the described punching pulling of claim 1 steel cylinder pipe wall thickness spinning method for correcting error, after it is characterized in that the whole spinning of the uneven wall thickness of described steel cylinder blank (1) are rectified a deviation into the tube wall (5) that spinning rectifies a deviation out, discharging rod (6) ejects the uniform steel cylinder of wall thickness from plug (2), finish steel cylinder blank (1) spinning correction processing overall process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101000284A CN101954422B (en) | 2010-01-22 | 2010-01-22 | Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101000284A CN101954422B (en) | 2010-01-22 | 2010-01-22 | Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101954422A true CN101954422A (en) | 2011-01-26 |
| CN101954422B CN101954422B (en) | 2012-03-28 |
Family
ID=43482150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101000284A Active CN101954422B (en) | 2010-01-22 | 2010-01-22 | Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101954422B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347883A (en) * | 2013-08-07 | 2015-02-11 | 上海电气集团股份有限公司 | Sodium-sulfur-battery anode container and processing method thereof |
| CN104399797A (en) * | 2014-11-06 | 2015-03-11 | 扬州龙川钢管有限公司 | Steel tube spinning lathe and steel tube machining process utilizing spinning lathe |
| CN106807819A (en) * | 2017-03-29 | 2017-06-09 | 浙江金盾消防器材有限公司 | One kind stretching spinning bottle and its processing tool |
| CN106807820A (en) * | 2017-03-29 | 2017-06-09 | 浙江金盾消防器材有限公司 | A kind of frock and its processing method that bottle is stretched for spinning |
| CN107486506A (en) * | 2016-06-13 | 2017-12-19 | 上海杰闵机械有限公司 | A kind of bull automatic rotary press |
| CN112570488A (en) * | 2020-12-21 | 2021-03-30 | 燕山大学 | Spinning-reducing forming method of stepped pipe blank for small and medium-sized bulging forming automobile axle housing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517535A (en) * | 1968-07-09 | 1970-06-30 | Parsons Corp | Method and apparatus for roll-extruding large diameter thin-walled tubing |
| JP2009160627A (en) * | 2008-01-09 | 2009-07-23 | Nippon Spindle Mfg Co Ltd | Plastic working method and its apparatus |
-
2010
- 2010-01-22 CN CN2010101000284A patent/CN101954422B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347883A (en) * | 2013-08-07 | 2015-02-11 | 上海电气集团股份有限公司 | Sodium-sulfur-battery anode container and processing method thereof |
| CN104399797A (en) * | 2014-11-06 | 2015-03-11 | 扬州龙川钢管有限公司 | Steel tube spinning lathe and steel tube machining process utilizing spinning lathe |
| CN107486506A (en) * | 2016-06-13 | 2017-12-19 | 上海杰闵机械有限公司 | A kind of bull automatic rotary press |
| CN106807819A (en) * | 2017-03-29 | 2017-06-09 | 浙江金盾消防器材有限公司 | One kind stretching spinning bottle and its processing tool |
| CN106807820A (en) * | 2017-03-29 | 2017-06-09 | 浙江金盾消防器材有限公司 | A kind of frock and its processing method that bottle is stretched for spinning |
| CN112570488A (en) * | 2020-12-21 | 2021-03-30 | 燕山大学 | Spinning-reducing forming method of stepped pipe blank for small and medium-sized bulging forming automobile axle housing |
| CN112570488B (en) * | 2020-12-21 | 2022-06-10 | 燕山大学 | Spinning-reducing forming method of stepped pipe blank for small and medium-sized bulging forming automobile axle housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101954422B (en) | 2012-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101954422B (en) | Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness | |
| CN102489638B (en) | Radial and axial roll-forming method for large internal-stage annular piece | |
| CN100506422C (en) | Flange of wind power generation tower barrel forging shaping process | |
| CN101954401B (en) | Power spinning new method for seamless tube | |
| CN103316926A (en) | Cold rolling forming method for automotive hub bearing ring part with L-shaped cross section | |
| CN106294971B (en) | Surely roller hydraulic design method is embraced in rolling for a kind of oversize ring control | |
| CN105107915A (en) | Technological method for precise spinning forming of large magnesium alloy thin-walled cylindrical part | |
| CN101797685A (en) | Process for manufacturing high-strength bolt | |
| CN107626766B (en) | A kind of rolling manufacturing method of special-shaped seamless steel pipe | |
| CN104889681A (en) | Method for processing welding neck flange | |
| CN102357531A (en) | Composite roll forming process of thick-wall deep-groove ring member | |
| CN103831580A (en) | Method for manufacturing hard-face roller of rolling mill | |
| CN101767165A (en) | Tube type flat belt pulley forming method | |
| CN204817674U (en) | A spinning wheel for gas cylinder production | |
| CN100537067C (en) | Flat roll finishing mill for processing steel cylinder pipe | |
| CN102161069B (en) | Forming method of no-material-head shaft piece by cross wedge rolling | |
| CN100491625C (en) | Bimetal metallurgy combined high precision roller components and manufacturing method thereof | |
| CN101537467B (en) | Process of conical roller bearing ring | |
| CN201720370U (en) | Milling wheel for ring milling machine | |
| CN101323081B (en) | Method for producing roller body of high precision compound guiding cloth guide roller | |
| CN109201830A (en) | A method of prevent coupling barrel process from flange defect occur | |
| CN106825181A (en) | A kind of general rotation building mortion of conical thin-wall revolving meber | |
| CN202894175U (en) | Precise forging combined body cold forging device | |
| CN206263052U (en) | A kind of general rotation building mortion of conical thin-wall revolving meber | |
| CN219632479U (en) | Horizontal ring rolling combination core roller with adjustable forming cavity height |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 5218, Yingbin Avenue, Xiaoyue Street, Shangyu District, Shaoxing City, Zhejiang Province, 312300 Patentee after: Zhejiang Jindun Pressure Vessel Intelligent Manufacturing Co.,Ltd. Address before: 312367 Small Town Industrial Zone, Zhejiang, Shangyu Patentee before: Zhejiang Jindun Pressure Vessel Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: No. 5218, Yingbin Avenue, Xiaoyue Street, Shangyu District, Shaoxing City, Zhejiang Province, 312300 Patentee after: Zhejiang Jindun Gas Equipment Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: No. 5218, Yingbin Avenue, Xiaoyue Street, Shangyu District, Shaoxing City, Zhejiang Province, 312300 Patentee before: Zhejiang Jindun Pressure Vessel Intelligent Manufacturing Co.,Ltd. Country or region before: China |