CN207806864U - Steel rail flash welding machine with interrupt central shaft - Google Patents
Steel rail flash welding machine with interrupt central shaft Download PDFInfo
- Publication number
- CN207806864U CN207806864U CN201720870838.5U CN201720870838U CN207806864U CN 207806864 U CN207806864 U CN 207806864U CN 201720870838 U CN201720870838 U CN 201720870838U CN 207806864 U CN207806864 U CN 207806864U
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- frame
- moving frame
- central shaft
- quiet
- welding machine
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- 238000003466 welding Methods 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 239000003921 oil Substances 0.000 claims description 35
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000000137 annealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model proposes a kind of steel rail flash welding machine with interrupt central shaft, which includes：Along rail width direction respectively across the position of the close face of weld in two rail to be welded, moving frame is connected with quiet frame by upset axis for moving frame and quiet frame, moving frame and quiet frame, and moving frame can be moved along upset axis towards quiet frame；First clamping device, the first clamping device are connected with moving frame to drive moving frame around the first central shaft opening and closing；Second clamping device, the second clamping device are connected with quiet frame to drive quiet frame around the second central shaft opening and closing；And control device, control device are connected with upset axis, the first clamping device and the second clamping device to control the action of steel rail flash welding machine respectively.The steel rail flash welding machine can reserve larger space for installing miscellaneous equipment using interrupt central shaft between moving frame and quiet frame, and avoid the problem that central shaft by excessive spatter.
Description
Technical field
The utility model is related to a kind of steel rail flash welding machines, more particularly, to a kind of steel with interrupt central shaft
Rail flash welder.
Background technology
China has been laid with large-scale gapless track at present, while also mating a large amount of suspended rails accordingly dodge
Welding machine, these welding machines have been all made of the machine structure of triple axle, which is realized using traditional crab type clamping amplifying technique
Clamping to rail, and drive rail to quiet frame close by moving frame.However as the progress of technology, construction operation journey is reduced
The demand for spending complexity is more strong.It is real there is an urgent need to which welding and heat treatment flow chart to be combined into one for flash welding
Existing process simplifies, and reduces repeated workload, promotes operation quality；It is parallel there is an urgent need to farthest be carried out using operation skylight
Operation；There is an urgent need to reduce equipment application cost, ensure that equipment is maintainable.
Existing suspended rail flash welder is all made of moving frame and the separated structure of quiet frame, and moving frame drives rail to quiet frame
It is close, and then realize welding process, during close, moving frame is close along central shaft and upset axial static frame, central shaft
Play the role of guiding with upset axis, ensures the global stiffness of welder head, especially head further through the rigidity of its own
Lateral stiffness.However this kind of structure there are problems that, including：
1. the space very little between central shaft, upset axis, to cause difficulty to installation miscellaneous equipment, volume is big, multiple
The high equipment of miscellaneous degree can not be placed between central shaft and upset axis；
2. central shaft and the mutual structural relation of upset axis any to carry out other works to the welding point in middle part
There are prodigious difficulty for industry, such as carry out connector area cleaning and coating protection；
3. the position of central shaft is in right over welding point, belong to one of maximum region of splashing amount, itself is prevented
Shield requires high, and it is not clean to easily cause the surface caused by splashing, to influence equipment life；
4. rotation center of the central shaft as complete machine is intended to ensure that its rigidity can only increase diameter, this will cause axis down space
It is more narrow, lead to operating difficulties.
Utility model content
In order to solve the above technical problems, the utility model proposes a kind of flash welding in rail with interrupt central shaft
Machine, the flash welder include：
Moving frame and quiet frame, moving frame and quiet frame are along rail width direction respectively across the close welding in two rail to be welded
The position of section, moving frame and quiet frame are connected by upset axis, and moving frame can be moved along upset axis towards quiet frame；
First clamping device, the first clamping device are connected with moving frame to drive moving frame around the first central shaft open and close
It closes；
Second clamping device, the second clamping device are connected with quiet frame to drive quiet frame around the second central shaft open and close
It closes；With
Control device, control device are connected respectively with upset axis, the first clamping device and the second clamping device to control
The action of steel rail flash welding machine.
In one embodiment of the utility model, the first central shaft passes through the centre bore of moving frame, and the first central shaft
One end the first clamping device is connected to by connector,
Second central shaft passes through the centre bore of quiet frame, and one end of the second central shaft is connected to the second folder by connector
Tight device, and
First central shaft is spaced apart with one end relative to each other of the second central shaft.
In one embodiment of the utility model, the first central shaft and the second central shaft pass through end fixed block and shaft end
Gear is respectively fixed to moving frame and the quiet frame.
In one embodiment of the utility model, one end interval relative to each other of the first central shaft and the second central shaft
Distance between 40mm-400mm.
In one embodiment of the utility model, moving frame includes preceding moving frame and rear moving frame, and quiet frame includes preceding quiet frame with after
Quiet frame, upset axis includes the first upset axis and the second upset axis, wherein moving frame and preceding quiet frame before the first upset axis connection, the second top
Moving frame and rear quiet frame after forging axis connection.
In one embodiment of the utility model, steel rail flash welding machine further includes：
At least one first asessory shaft, each one end at least one first asessory shaft are connected, separately with preceding moving frame
One end is connected with preceding quiet frame, so that preceding moving frame and preceding quiet frame can be moved along the length direction of at least one first asessory shaft
It is dynamic；With
At least one second asessory shaft, moving frame is connected, separately behind one end of each at least one second asessory shaft
One end is connected with rear quiet frame, so that rear moving frame and rear quiet frame can be moved along the length direction of at least one second asessory shaft
It is dynamic,
Wherein, each at least one first asessory shaft and at least one second asessory shaft is not located at main rotation
Turn at center.
In one embodiment of the utility model, at least one first asessory shaft is 1, at least one second asessory shaft
It is 1.
In one embodiment of the utility model, steel rail flash welding machine further includes the first upset oil cylinder and the second upset oil
Cylinder, wherein the first upset oil cylinder and the second upset oil cylinder are arranged at the side of the separate moving frame of quiet frame, and the first upset oil
Cylinder is connected with the first upset axis, and the second upset oil cylinder is connected with the second upset axis.
In one embodiment of the utility model：
First clamping device includes：
There is the first rodless cavity and first separated by moveable slide plate to have for first clamping cylinder, the first clamping cylinder
Rod cavity and the first drive rod being arranged in the first rod chamber, and the first rodless cavity and the first rod chamber respectively with outer liquid
Pressure oil source is connected；With
Two the first clamp linkages, one end of each in two the first clamp linkages is connected with the first drive rod,
The other end is connected with preceding moving frame and rear moving frame respectively, and
Second clamping device includes：
There is the second rodless cavity and second separated by moveable slide plate to have for second clamping cylinder, the second clamping cylinder
Rod cavity and the second drive rod being arranged in the second rod chamber, and the second rodless cavity and the second rod chamber respectively with outer liquid
Pressure oil source is connected；With
Two the second clamp linkages, one end of each in two the second clamp linkages is connected with the second drive rod,
The other end is connected with preceding quiet frame and rear quiet frame respectively.
The utility model proposes the steel rail flash welding machine with interrupt central shaft exist by using interrupt central shaft
Create very large space between moving frame and quiet frame, be easily installed welding point measuring device, centralising device, annealing device,
Other devices such as skimming device simultaneously carry out corresponding operation, to improve construction efficiency；Meanwhile it being solved using interrupt central shaft
The problem of central shaft is by excessive spatter in the prior art, the service life need not be set and complicated central shaft insulating mechanism,
It improves the service life of equipment, reduce cost of equipment maintenance and manufacturing cost；In addition, while disconnected formula central shaft in use
Increase two or more asessory shafts, you can guidance quality when ensureing that moving frame and quiet frame mutually move, and can protect
Equipment rigidity is demonstrate,proved, and then ensure that welding quality.
Description of the drawings
Fig. 1 is the steel rail flash welding machine with interrupt central shaft according to one exemplary embodiment of the utility model
Structural schematic diagram；With
Fig. 2A -2C are the structural schematic diagram according to the interrupt central shaft of one exemplary embodiment of the utility model.
Specific implementation mode
Illustrative, non-limiting embodiment of the utility model are described in detail with reference to the accompanying drawings, to new according to this practicality
The steel rail flash welding machine with interrupt central shaft of type is further described.
Referring to Fig.1, the steel rail flash welding machine disclosed by the utility model with interrupt central shaft includes moving frame 1, quiet frame
2, upset axis, the first clamping device, the second clamping device and control device.
Moving frame 1 and quiet frame 2 are along rail width direction respectively across the position of the close face of weld in two rail to be welded
It sets, and moving frame 1 is connected with quiet frame 2 by upset axis so that moving frame 1 can be moved by 2 direction of upset axial static frame.The
One clamping device is connected with moving frame 1 to drive moving frame 1 around 11 opening and closing of the first central shaft.Second clamping device and quiet frame
2 are connected to drive quiet frame 2 around 12 opening and closing of the second central shaft.In this way, flash welder disclosed by the utility model uses
Two interrupt central shafts replace original central shaft through moving frame 1 and quiet frame 2, to above welding point, moving frame 1
Very large space is created between quiet frame 2, is easily installed connector measuring device, centralising device, annealing device, skimming device
And corresponding operation is carried out, improve construction efficiency；Meanwhile using interrupt central shaft solve in the prior art central shaft by
The problem of to excessive spatter, the service life need not be set and complicated central shaft insulating mechanism, improve equipment service life,
Reduce cost of equipment maintenance and manufacturing cost.
In one embodiment of the utility model, the first central shaft 11 passes through the centre bore of moving frame, and one end passes through
Connector is connected to the first clamping device；Second central shaft 12 passes through the centre bore of quiet frame, and one end is connected by connector
To the second clamping device.Also, the first central shaft 11 is spaced apart with one end relative to each other of the second central shaft 12.Preferably,
The distance between one end relative to each other of first central shaft 11 and the second central shaft 12 is between 40mm-400mm.
Illustrate the first central shaft 11 and the second central shaft 12 disclosed in the utility model referring to Fig. 2A -2C.Due to
12 structure having the same of first central shaft 11 and the second central shaft, only elaborates by taking the first central shaft 11 as an example below.
There is central shaft pin hole 11.1, fixed pin to be pierced by from the pin hole 11.1 and be passed to the first clamping for one end of first central shaft 11
In device (for example, pedestal of the first clamping cylinder), the first central shaft 11 of realization is fixed to each other with the first clamping device.Together
When, described one end of the first central shaft 11 is connected to moving frame 1 by end by fixed block 11.2 and shaft end gear 11.3, to carry
For stable connection.
With continued reference to Fig. 1, moving frame 1 includes preceding moving frame 1.1 and rear moving frame 1.2, and the quiet frame 2 of institute includes preceding quiet frame 2.1 and rear quiet
Frame 2.2, upset axis includes the first upset axis 3 and the second upset axis 4, wherein the first upset axis 3 connects preceding moving frame 1.1 and preceding quiet frame
2.1, moving frame 1.2 and rear quiet frame 2.2 after the connection of the second upset axis 4 allow preceding moving frame 1.1 and rear moving frame 1.2 respectively along first
Upset axis 3 and the second upset axis 4 are moved simultaneously towards quiet frame 2.In one embodiment of the utility model, flash welding in rail
Machine further includes the first upset oil cylinder 7 and the second upset oil cylinder 8, wherein the first upset oil cylinder 7 and the second upset oil cylinder 8 are arranged at
The side of the separate moving frame 1 of quiet frame 2, and the first upset oil cylinder is connected with the first upset axis 3, the second upset oil cylinder 8 and
Two upset axis 4 are connected.In this way, under the driving of the first upset oil cylinder 7 and the second upset oil cylinder 8, the first upset axis 3 and second
Upset axis 4 correspondingly shrinks and stretches out, to drive the movement of moving frame 1.
In one embodiment, which further includes at least one first asessory shaft 5 and at least one second
Asessory shaft 6, and each at least one first asessory shaft 5 and at least one second asessory shaft 6 is not located at master
Rotation center.When at least one first asessory shaft 5 is multiple, one end of each in multiple first asessory shaft 5 is with before
Moving frame 1.1 is connected, the other end is connected with preceding quiet frame 2.1, so that preceding moving frame 1.1 and preceding quiet frame 2.1 can be along multiple
The length direction of each movement in one asessory shaft 5.When at least one second asessory shaft 6 is multiple, multiple second auxiliary
One end of each in axis 6 is connected with rear moving frame 1.2, the other end is connected with rear quiet frame 2.2, so that 1.2 He of rear moving frame
Quiet frame 2.2 can be moved along the length direction of each in multiple second asessory shafts 6 afterwards.Preferably, at least one first
The number of asessory shaft 5 is 1, and the number of at least one second asessory shaft 6 is 1.Since the utility model is using in interrupt
The first central shaft 11 and the second central shaft 12, therefore the first central shaft 11 is respectively adopted in 1 side of moving frame and 2 side of quiet frame in mandrel
Do not have with the second central shaft 12 used in being oriented to, and only turning effort.Using other rotations association except main rotation center
The mode of at least one first asessory shaft 5 and at least one second asessory shaft 6 is set with position, you can using as moving frame 1 and quiet
The guider of frame 2, and can ensure equipment rigidity, and then ensure that the welding quality of connector.
Referring to Fig.1, the first clamping device includes the first clamping cylinder 9 and two the first clamp linkages 13.First clamps oil
Cylinder 9 include the first rodless cavity, the first rod chamber and the first drive rod, wherein the first rodless cavity and the first rod chamber pass through it is removable
Dynamic slide plate separates, and the first drive rod is arranged in the first rod chamber, the first rodless cavity and the first rod chamber respectively with outer liquid
Pressure oil source is connected.One end of each in two the first clamp linkages 13 is connected with the first drive rod, the other end is distinguished
It is connected with preceding moving frame 1.1 and rear moving frame 1.2.In this way, when moving frame 1 clamps rail to be welded, the first rod chamber oil inlet, the
One drive rod is retracted, and is driven two the first clamp linkages 13 to move down and is clamped steel with the preceding moving frame 1.1 of promotion and rear moving frame 1.2
Rail；When moving frame 1 is detached with rail, the first rodless cavity oil inlet, the first drive rod stretches out, and drives the first clamp linkage 13 to moving up
It is dynamic, so that preceding moving frame 1.1 and rear moving frame 1.2 off-axis in first is rotated, to be detached with rail.Second clamping device includes second
Clamping cylinder 10 and two the second clamp linkages 14.Second clamping cylinder 10 includes the second rodless cavity, the second rod chamber and second
Drive rod, wherein the second rodless cavity and the second rod chamber are separated by moveable slide plate, the setting of the second drive rod has second
In rod cavity, the second rodless cavity and the second oil cylinder chamber are connected respectively at external hydraulic oil sources.In two the second clamp linkages 14
The one end of each is connected with the second drive rod, the other end is connected with preceding quiet frame 2.1 and rear quiet frame 2.2 respectively.In this way,
When quiet frame 2 clamps rail to be welded, the second rod chamber oil inlet, the second drive rod is retracted, and drives two the second clamp linkages 14
It moves down to push preceding quiet frame 2.1 and rear quiet frame 2.2 to clamp rail；When quiet frame 2 is detached with rail, the second rodless cavity into
Oil, the second drive rod stretch out, and the second clamp linkage 14 is driven to move up, and preceding quiet frame 2.1 and rear quiet frame 2.2 is made to be interrupted around second
Axis rotates, to be detached with rail.
Illustrate the workflow of the steel rail flash welding machine disclosed by the utility model with interrupt central shaft with reference to Fig. 1
Journey：Under control of the control means, the first rod chamber and the second rod chamber oil inlet respectively drive the first drive rod and the second driving
Bar is retracted, and the first clamp linkage 13 and the second clamp linkage 14 is driven to move downward, and makes preceding moving frame 1.1 and rear moving frame 1.2 around the
Off-axis rotation is to be welded to clamp to clamp rail, preceding quiet frame 2.1 and rear quiet frame 2.2 to be welded the off-axis rotation in second in one
Rail；Start the first upset oil cylinder 7 and the second upset oil cylinder 8, the first upset oil cylinder 7 and the second upset oil cylinder 8 respectively drive
One upset axis 3 and the second upset axis 4 are shunk, and so that moving frame 1 is moved towards quiet frame 2, wherein the first asessory shaft 5 and the second asessory shaft 6
Play the role of guiding；After the completion of upset, connector measuring device, centralising device, annealing device, skimming device etc. can be used
Equipment Welded Joints carry out corresponding operation；After the completion of operation, under control of the control means, the first rodless cavity and second is without bar
Chamber oil inlet, respectively drives the first drive rod and the second drive rod stretches out, and then drives the first clamp linkage 13 and second to clamp and connect
Bar 14 moves up, so that preceding moving frame 1.1 and rear moving frame 1.2 is rotated around the first central shaft 11, preceding quiet frame 2.1 and rear quiet frame 2.2 around
Second central shaft 12 rotates, and moving frame 1 and quiet frame 2 are detached with rail respectively.
Claims (9)
1. a kind of steel rail flash welding machine with interrupt central shaft, which is characterized in that the steel rail flash welding machine includes：
Moving frame and quiet frame, the moving frame and the quiet frame are along rail width direction respectively across in the close of two rail to be welded
The position of face of weld, the moving frame are connected with the quiet frame by upset axis, and the moving frame can be along the top
Axis is forged to move towards the quiet frame；
First clamping device, first clamping device are connected with the moving frame to drive the moving frame around the first central shaft
Open and close are closed；
Second clamping device, second clamping device are connected with the quiet frame to drive the quiet frame around the second central shaft
Open and close are closed；With
Control device, the control device respectively with the upset axis, first clamping device and second clamping device
It is connected to control the action of the steel rail flash welding machine.
2. steel rail flash welding machine according to claim 1, it is characterised in that：
First central shaft passes through the centre bore of the moving frame, and one end of first central shaft is connected by connector
To first clamping device；
Second central shaft passes through the centre bore of the quiet frame, and one end of second central shaft is connected by connector
To second clamping device；And
First central shaft is spaced apart with one end relative to each other of second central shaft.
3. steel rail flash welding machine according to claim 2, which is characterized in that first central shaft and second center
Axis is respectively fixed to the moving frame and the quiet frame by end fixed block and shaft end gear.
4. steel rail flash welding machine according to claim 2, which is characterized in that first central shaft and second center
The distance at one end interval relative to each other of axis is between 40mm-400mm.
5. steel rail flash welding machine according to claim 1, which is characterized in that the moving frame includes preceding moving frame and rear moving frame,
The quiet frame includes preceding quiet frame and rear quiet frame, and the upset axis includes the first upset axis and the second upset axis, wherein described first
Preceding moving frame described in upset axis connection and the preceding quiet frame, the second upset axis connection to the rear moving frame and the rear quiet frame.
6. steel rail flash welding machine according to claim 5, which is characterized in that the steel rail flash welding machine further includes：
At least one first asessory shaft, one end of each at least one first asessory shaft are connected with the preceding moving frame
Connect, the other end is connected with the preceding quiet frame so that the preceding moving frame can be along the length of at least one first asessory shaft
Spend direction movement；With
At least one second asessory shaft, one end of each at least one second asessory shaft with it is described after moving frame be connected
Connect, the other end with it is described after quiet frame be connected so that it is described after moving frame can be along the length of at least one second asessory shaft
Direction movement is spent,
Wherein, each at least one first asessory shaft and at least one second asessory shaft is not located at
At main rotation center.
7. steel rail flash welding machine according to claim 6, which is characterized in that at least one first asessory shaft is 1,
At least one second asessory shaft is 1.
8. steel rail flash welding machine according to claim 5, which is characterized in that the steel rail flash welding machine further includes the first top
Oil cylinder and the second upset oil cylinder are forged, wherein the first upset oil cylinder and the second upset oil cylinder are arranged at the quiet frame
Side far from the moving frame, and the first upset oil cylinder is connected with the first upset axis, the second upset oil
Cylinder is connected with the second upset axis.
9. steel rail flash welding machine according to claim 5, which is characterized in that
First clamping device includes：
There is the first rodless cavity and first separated by moveable slide plate to have for first clamping cylinder, first clamping cylinder
Rod cavity and the first drive rod being arranged in first rod chamber, and first rodless cavity and first rod chamber
It is connected respectively with external hydraulic oil sources；With
Two the first clamp linkages, one end of each in described two first clamp linkages are connected with first drive rod
Connect, the other end respectively with the preceding moving frame and it is described after moving frame be connected, and
Second clamping device includes：
There is the second rodless cavity and second separated by moveable slide plate to have for second clamping cylinder, second clamping cylinder
Rod cavity and the second drive rod being arranged in second rod chamber, and second rodless cavity and second rod chamber
It is connected respectively with external hydraulic oil sources；With
Two the second clamp linkages, one end of each in described two second clamp linkages are connected with second drive rod
It connects, the other end is connected with the preceding quiet frame and the rear quiet frame respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720870838.5U CN207806864U (en) | 2017-07-18 | 2017-07-18 | Steel rail flash welding machine with interrupt central shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720870838.5U CN207806864U (en) | 2017-07-18 | 2017-07-18 | Steel rail flash welding machine with interrupt central shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207806864U true CN207806864U (en) | 2018-09-04 |
Family
ID=63335665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720870838.5U Withdrawn - After Issue CN207806864U (en) | 2017-07-18 | 2017-07-18 | Steel rail flash welding machine with interrupt central shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207806864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262894A (en) * | 2017-07-18 | 2017-10-20 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine with interrupt central shaft |
-
2017
- 2017-07-18 CN CN201720870838.5U patent/CN207806864U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262894A (en) * | 2017-07-18 | 2017-10-20 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine with interrupt central shaft |
| CN107262894B (en) * | 2017-07-18 | 2023-11-03 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Rail flash welder with interrupted central shaft |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 2, No. two, No. 2, Da Liu Shu Road, Beijing, Beijing Patentee after: METALS & CHEMISTRY RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Patentee after: CHINA RAILWAY Corp. Patentee after: BEIJING RAILWELD NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee before: METALS & CHEMISTRY Research Institute CHINA ACADEMY OF RAILWAY SCIENCES Patentee before: CHINA RAILWAY Corp. Patentee before: BEIJING RAILWELD NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee before: CHINA ACADEMY OF RAILWAY SCIENCES |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 2, No. two, No. 2, Da Liu Shu Road, Beijing, Beijing Patentee after: METALS & CHEMISTRY RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Patentee after: China National Railway Group Co.,Ltd. Patentee after: BEIJING RAILWELD NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Address before: No. 2, No. two, No. 2, Da Liu Shu Road, Beijing, Beijing Patentee before: METALS & CHEMISTRY RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Patentee before: CHINA RAILWAY Corp. Patentee before: BEIJING RAILWELD NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee before: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180904 Effective date of abandoning: 20231103 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180904 Effective date of abandoning: 20231103 |