CN204174286U - For the device of bimetal composite seamless steel pipe internal-surface pickling - Google Patents
For the device of bimetal composite seamless steel pipe internal-surface pickling Download PDFInfo
- Publication number
- CN204174286U CN204174286U CN201420520367.1U CN201420520367U CN204174286U CN 204174286 U CN204174286 U CN 204174286U CN 201420520367 U CN201420520367 U CN 201420520367U CN 204174286 U CN204174286 U CN 204174286U
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- baffle plate
- limit baffle
- steel pipe
- support
- shifting board
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Abstract
The utility model discloses a kind of device for the pickling of bimetal composite seamless steel pipe internal-surface, relate to tubing pickling equipment technical field.Comprise pair of parallel support, the left and right two ends of support connect respectively by the left and right postive stop baffle perpendicular to support; Interval between left and right postive stop baffle, on support and be parallelly provided with support bar, support bar comprises the arc of opening upwards, and arc two ends are fixed or slided and are located on support; Be provided with shifting board between right limit baffle plate and low order end support bar, shifting board is provided with two through holes one, props up and is erected in through hole one; The mechanical seal pad that the logical sour device of sealing comprises hollow and the logical acid tube communicated with mechanical seal pad, shifting board and left limit baffle plate medial surface are provided with mechanical seal pad, and logical acid tube is through shifting board, the right side or left limit baffle plate; Thrust device is provided with between shifting board and right limit baffle plate.Composite steel tube internal surface can be cleaned out by the utility model in complex acid washing trough, and can not cause corrosion to composite steel tube.
Description
Technical field
The utility model relates to the equipment technical field of tubing pickling.
Background technology
Steel pipe generally all will carry out pickling, to remove the oxide skin of steel tube surface in process of production.Current acid cleaning of steel tube adopts Dipping process device mostly, mainly by treat the steel pipe of pickling be placed in fill pickle solution pickling tank in immersing method, the oxide skin of steel tube surface is removed.
Bimetal composite seamless steel pipe refers to that a performance is combined with each other according to particular requirement with the different steel grade of value, to meet the high added value tube product of special purpose.In some specific industry, due to needs difference, the metal ingredient of steel pipe ectonexine can be different.As transportation pipe inner layer metal requires high, need to use anticorrosive, and particular requirement is not had to outer layer metal.Bimetal composite seamless steel pipe can reasonably combined according to different application environmental selection ectonexine metal, can reduce costs again while saving noble metal.
Bimetal composite seamless steel pipe is in process of production through hot extrusion, there is glass powder in internal surface, oxide skin is there is after thermal treatment, due to the existence of the not resistant metal such as the outer carbon steel of composite steel tube, directly bimetal composite seamless steel pipe is soaked in inner surface in existing pickling tank to clear up, can cause the corrosion of the not resistant metal such as the outer carbon steel of composite steel tube, therefore, existing pickling tank is unsuitable for the pickling of bimetal composite seamless steel pipe.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of device for the pickling of bimetal composite seamless steel pipe internal-surface, this apparatus structure is simple, low cost of manufacture, easy to use, effective, complex acid washing trough can be cleaned out by the internal surface of bimetal composite seamless steel pipe, noresidue glass powder or oxide skin, and can not to carbon steel in composite steel tube etc. not resistant metal cause corrosion.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: for the device of bimetal composite seamless steel pipe internal-surface pickling, comprises a pair support parallel to each other, left limit baffle plate, right limit baffle plate, support bar, shifting board, sealing and leads to sour device and thrust device; The left and right two ends of pair of brackets are connected with right limit baffle plate respectively by the left limit baffle plate perpendicular to support; Interval between left limit baffle plate and right limit baffle plate, on support and be provided with plural support bar parallel to each other, support bar comprises the arc of opening upwards, and the two ends of arc are each fixing or be slidably arranged on a support; Be provided with a shifting board between right limit baffle plate and the support bar of low order end, shifting board is provided with two through holes one, and pair of brackets is located in through hole one; The mechanical seal pad that the logical sour device of sealing comprises hollow and the logical acid tube communicated with mechanical seal pad, shifting board and left limit baffle plate place are respectively provided with a logical sour device of sealing: the medial surface of shifting board is provided with mechanical seal pad, and logical acid tube passes the middle part of shifting board and right limit baffle plate; The medial surface of left limit baffle plate is provided with mechanical seal pad, and logical acid tube is through the middle part of left limit baffle plate; Thrust device is provided with between shifting board and right limit baffle plate.
Preferably, on left limit baffle plate and right limit baffle plate, each correspondence is provided with two through holes two, the left and right two ends of pair of brackets are actively installed in through hole two respectively, left limit baffle plate with outside right limit baffle plate, support is provided with the vertical bolt being fed through support, and bolt is rotary with nut.
Preferably, support bar is: the arc of opening upwards, and the two ends of arc are respectively provided with a slip cap matched with support, and each slip cap slides respectively and is located on a support.
Preferred further, the logical acid tube of the logical sour device of sealing forms by with externally threaded steel pipe and the logical aching and limp pipe that is connected with steel pipe, mechanical seal pad communicates with steel pipe and is fixedly connected with, on steel pipe, cover has fitting nut, and the outer side of shifting board or left limit baffle plate is close in one end of fitting nut.
Preferably, thrust device is screw block, cylinder, electric pushrod or hydraulic push rod.
The beneficial effect adopting technique scheme to produce is:
(1) the utility model structure is simple, and low cost of manufacture is easy to use, effective, complex acid washing trough can be cleaned out by the internal surface of bimetal composite seamless steel pipe, noresidue glass powder or oxide skin, and can not to carbon steel in composite steel tube etc. not resistant metal cause corrosion.
(2) use the utility model to carry out pickling to the inwall of bimetallic seamless steel pipe, inwall is clean, simple to operate, and relative to inwall sandblasting, reconditioning operation, pickling operation yield rate, efficiency are high, greatly reduce the manufacturing cost of bimetallic seamless steel pipe.
(3) on the utility model left limit baffle plate and right limit baffle plate, each correspondence is provided with two through holes two, the left and right two ends of pair of brackets are actively installed in through hole two respectively, and the design of screw bolt and nut on support, by reaching dismounting to left limit baffle plate and right limit baffle plate and replacing to the dismounting of screw bolt and nut, and the fastening of screw bolt and nut can be carried out spacing to left and right postive stop baffle; The design of the slip cap on support bar, for the placement location of bimetal composite seamless steel pipe, can adjust the spacing of support bar, makes the support of this device to bimetal composite seamless steel pipe more firm; Shifting board is provided with two through holes one, pair of brackets is located in through hole one, shifting board can be slided on support, coordinate the thrust device between shifting board and right limit baffle plate to be placed on the bimetal composite seamless steel tube clamping on support bar, make bimetal composite seamless steel pipe fastening between left limit baffle plate and shifting board; Mechanical seal pad can make bimetal composite seamless steel pipe seal closely on this device, and the acid solution in logical acid tube can smoothly by not spilling in bimetal composite seamless steel pipe; The logical sour device of the convenient sealing of design of fitting nut is fixed on shifting board or left limit baffle plate place.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of Fig. 1 using state;
In figure, 1, left limit baffle plate; 2, support; 3, arc; 4, fitting nut; 5, shifting board; 6, steel pipe; 7, right limit baffle plate; 8, nut; 9, bolt; 10, logical aching and limp pipe; 11, thrust device; 12, slip cap; 13, mechanical seal pad; 14, bimetal composite seamless steel pipe; 15, middle connection gasket.
Embodiment
Embodiment 1
For the device of bimetal composite seamless steel pipe internal-surface pickling, as shown in Figure 1, a pair support 2 parallel to each other, left limit baffle plate 1, right limit baffle plate 7, support bar, shifting board 5, the logical sour device of sealing and thrust device 11 is comprised.
On left limit baffle plate 1 and right limit baffle plate 7, each correspondence is provided with two through holes two, the left and right two ends of pair of brackets 2 are actively installed in through hole two respectively, outside left limit baffle plate 1 and right limit baffle plate 7, support 2 is provided with the bolt 9 passing perpendicularly through support 2, bolt 9 is rotary with nut 8.This design is by reaching dismounting to left limit baffle plate and right limit baffle plate and replacing to the dismounting of screw bolt and nut, and the fastening of screw bolt and nut can be carried out spacing to left and right postive stop baffle.
Interval between left limit baffle plate 1 and right limit baffle plate 7, on support 2 and be provided with plural support bar parallel to each other, support bar is: the arc 3 of opening upwards, the two ends of arc 3 are respectively provided with a slip cap 12 matched with support 2, and each slip cap 12 slides respectively and is located on a support 2.The convenient placement location for bimetal composite seamless steel pipe 14 of this design, adjusts the spacing of support bar, makes the support of this device to bimetal composite seamless steel pipe 14 more firm.
Be provided with a shifting board 5 between right limit baffle plate 7 and the support bar of low order end, shifting board 5 is provided with two through holes one, and pair of brackets 2 is located in through hole one; Be provided with two thrust devices 11 between shifting board 5 and right limit baffle plate 7, thrust device 11 is screw block.This design makes shifting board 5 can slide on support 2, coordinate the thrust of screw block the bimetal composite seamless steel pipe 14 be placed on support bar can be clamped, make bimetal composite seamless steel pipe 14 be fastened on (as shown in Figure 2) between left limit baffle plate 1 and shifting board 5.
The mechanical seal pad 13 that the logical sour device of sealing comprises hollow and the logical acid tube communicated with mechanical seal pad 13, logical acid tube forms by with externally threaded steel pipe 6 and the logical aching and limp pipe 10 that is connected with steel pipe 6, mechanical seal pad 13 communicates with steel pipe 6 and is fixedly connected with, and on steel pipe 6, cover has fitting nut 4; Shifting board 5 and left limit baffle plate 1 place are respectively provided with a logical sour device of sealing: the medial surface of shifting board 5 is fixed or movable is provided with mechanical seal pad 13, logical acid tube passes the middle part of shifting board 5 and right limit baffle plate 7, and shifting board 5 outer side is close in one end of fitting nut 4; The medial surface of left limit baffle plate 1 is fixed or movable is provided with mechanical seal pad 13, and logical acid tube is through the middle part of left limit baffle plate 1, and the outer side of left limit baffle plate 1 is close in one end of fitting nut 4.Mechanical seal pad 13 can make bimetal composite seamless steel pipe 14 seal closely on this device, and the acid solution in logical acid tube can smoothly by not spilling in bimetal composite seamless steel pipe 14; The logical sour device of the convenient sealing of design of fitting nut 4 is fixed on shifting board 5 or left limit baffle plate 1 place.The material of the mechanical seal pad 13 of hollow is rubber, and wherein the hole diameter in vacancy is less than the internal diameter of bimetal composite seamless steel pipe 14, in order to avoid acid solution spills.
This device using method is as follows:
1) process of bimetal composite seamless steel pipe 14: by bimetal composite seamless steel pipe 14 two ends tack, trim, cut gradient and be less than 1 °, and remove two ends burr.
2) bimetal composite seamless steel pipe 14 is winched to this setting position.
3) bimetal composite seamless steel pipe 14 is put on this device support bar, according to the length of bimetal composite seamless steel pipe 14, once can put into one or two bimetal composite seamless steel pipes 14.When putting into two bimetal composite seamless steel pipes 14, place the middle of hollow between two bimetal composite seamless steel pipes 14 and connect gasket 15, as shown in Figure 2.
4) bimetal composite seamless steel pipe 14 and the logical sour device of sealing are led to sour hole, centre to be connected gasket 15 centre hole and to align.
5) compress bimetal composite seamless steel pipe 14 two ends with the screw block between this device afterbody shifting board 5 and right limit baffle plate 7, two ends bimetal composite seamless steel pipe 14 and mechanical seal pad 13 are combined closely.
6) by two ends seal after bimetal composite seamless steel pipe 14 together with this device winch to pickling tank station (pickling tank station comprise fill acid solution pickling tank, acid inlet tube, go out acid tube and pickling recycle pump).
7) the logical aching and limp pipe 10 at upper right for this device postive stop baffle 7 place is connected with pickling tank acid inlet tube, logical aching and limp pipe 10 and the pickling tank at left limit baffle plate 1 place go out acid tube and connect, acid mouth height, higher than acid inlet, ensures that bimetal composite seamless steel pipe 14 inwall entirety can be full of acid solution.
8) open pickling recycle pump, start to carry out the pickling of multiple-unit tube inwall.
Embodiment 2
For the device of bimetal composite seamless steel pipe internal-surface pickling, comprise a pair support 2 parallel to each other, left limit baffle plate 1, right limit baffle plate 7, support bar, shifting board 5, the logical sour device of sealing and thrust device 11; The left and right two ends of pair of brackets 2 are fixedly connected with right limit baffle plate 7 respectively by the left limit baffle plate 1 perpendicular to support 2; Interval between left limit baffle plate 1 and right limit baffle plate 7, on support 2 and be provided with plural support bar parallel to each other, support bar comprises the arc 3 of opening upwards, and the two ends of arc 3 are respectively fixedly installed on a support 2; Be provided with a shifting board 5 between right limit baffle plate 7 and the support bar of low order end, shifting board 5 is provided with two through holes one, and pair of brackets 2 is located in through hole one; The mechanical seal pad 13 that the logical sour device of sealing comprises hollow and the logical acid tube communicated with mechanical seal pad 13, shifting board 5 and left limit baffle plate 1 place are respectively provided with a logical sour device of sealing: the medial surface of shifting board 5 is fixedly installed mechanical seal pad 13, and logical acid tube passes the middle part of shifting board 5 and right limit baffle plate 7; The medial surface of left limit baffle plate 1 is fixedly installed mechanical seal pad 13, and logical acid tube is through the middle part of left limit baffle plate 1; Be provided with two thrust devices 11 between shifting board 5 and right limit baffle plate 7, thrust device 11 is cylinder.
Use this device pickling 42CrMo/825 bimetal composite seamless steel pipe (outer 42CrMo, internal layer 825), comprise the following steps:
1) process of 42CrMo/825 compound hollow forging: by bimetal composite seamless steel pipe two ends tack, trim, cut gradient and be less than 0.8 °, and remove two ends burr.
2) by 42CrMo/825 bimetal composite seamless steel tube suspending to this setting position.
3) 42CrMo/825 bimetal composite seamless steel pipe is put into this device, once put into two bimetal composite seamless steel pipes, single 42CrMo/825 bimetal composite seamless steel pipe length is 5.5 meters, places the middle of hollow and connect gasket between two 42CrMo/825 bimetal composite seamless steel pipes.
4) 42CrMo/825 bimetal composite seamless steel tube inner hole and the logical sour device of sealing are led to sour hole, two bimetal composite seamless steel pipes centres to be connected gasket centre hole and to align.
5) with the cylinder-pressing bimetal composite seamless steel pipe two ends between this device afterbody shifting board and right limit baffle plate, two ends bimetal composite seamless steel pipe and mechanical seal pad are combined closely.
6) the bimetal composite seamless steel pipe connecting after being sealed at two ends winches to pickling tank station with this device.
7) acid tube logical on this device and pickling tank are connected into and out of acid tube, pickling goes out acid tube height higher than acid inlet tube, ensures that multiple-unit tube inwall entirety can be full of acid solution.
8) open pickling recycle pump, start to carry out the pickling of bimetal composite seamless steel pipe inner wall, acid strength is 18%HNO
3+ 5%HF, pickling temperature 50 DEG C, obtains the bimetal composite seamless steel pipe that inwall pickling is clean after pickling.
Embodiment 3
For the device of bimetal composite seamless steel pipe internal-surface pickling, be with the difference of embodiment 2: respectively on left limit baffle plate 1 and right limit baffle plate 7 be correspondingly provided with two through holes two, the left and right two ends of pair of brackets 2 are actively installed in through hole two respectively, outside left limit baffle plate 1 and right limit baffle plate 7, support 2 is provided with the bolt 9 passing perpendicularly through support 2, bolt 9 is rotary with nut 8.Thrust device 11 is electric pushrod.
Use this device pickling L360/825 bimetal composite seamless steel pipe (outer L360, internal layer 825), comprise the following steps:
1) process of L360/825 compound hollow forging: by bimetal composite seamless steel pipe two ends tack, trim, cut gradient and be less than 0.5 °, and remove two ends burr;
2) by L360/825 bimetal composite seamless steel tube suspending to this setting position;
3) L360/825 bimetal composite seamless steel pipe is put into this device, once put into a bimetal composite seamless steel pipe, single L360/825 bimetal composite seamless steel pipe length is 11.5 meters;
4) logical to L360/825 bimetal composite seamless steel tube inner hole and sealing sour device is led to sour hole to align;
5) compress bimetal composite seamless steel pipe two ends with the electric pushrod between this device afterbody shifting board and right limit baffle plate, two ends bimetal composite seamless steel pipe and mechanical seal pad are combined closely.
6) the bimetal composite seamless steel pipe connecting after being sealed at two ends winches to pickling tank station with this device;
7) acid tube logical on this device and pickling tank are connected into and out of acid tube, pickling goes out acid tube height higher than acid inlet tube, ensures that bimetal composite seamless steel pipe inner wall entirety can be full of acid;
8) open pickling recycle pump, start to carry out the pickling of multiple-unit tube inwall, acid strength 22%HNO
3+ 3.5%HF, pickling temperature 57 DEG C, after pickling scale removal, obtains the bimetal composite seamless steel pipe that inwall is clean.
Embodiment 4
For the device of bimetal composite seamless steel pipe internal-surface pickling, be with the difference of embodiment 2: support bar is: the arc 3 of opening upwards, the two ends of arc 3 are respectively provided with a slip cap 12 matched with support 2, and each slip cap 12 slides respectively and is located on a support 2.Thrust device 11 is hydraulic push rod.
Claims (5)
1. for the device of bimetal composite seamless steel pipe internal-surface pickling, it is characterized in that: comprise a pair support (2) parallel to each other, left limit baffle plate (1), right limit baffle plate (7), support bar, shifting board (5), the logical sour device of sealing and thrust device (11); The left and right two ends of pair of brackets (2) are connected with right limit baffle plate (7) respectively by the left limit baffle plate (1) perpendicular to support (2); Between described left limit baffle plate (1) and right limit baffle plate (7), the upper interval of support (2) and be provided with plural support bar parallel to each other, support bar comprises the arc (3) of opening upwards, and the two ends of arc (3) are each to be fixed or is slidably arranged on a support (2); Be provided with a shifting board (5) between described right limit baffle plate (7) and the support bar of low order end, shifting board (5) is provided with two through holes one, and pair of brackets (2) is located in through hole one; The mechanical seal pad (13) that sour device comprises hollow and the logical acid tube communicated with mechanical seal pad (13) are led in described sealing, shifting board (5) and left limit baffle plate (1) place are respectively provided with a logical sour device of sealing: the medial surface of shifting board (5) is provided with mechanical seal pad (13), and logical acid tube passes the middle part of shifting board (5) and right limit baffle plate (7); The medial surface of left limit baffle plate (1) is provided with mechanical seal pad (13), and logical acid tube is through the middle part of left limit baffle plate (1); Thrust device (11) is provided with between described shifting board (5) and right limit baffle plate (7).
2. the device for the pickling of bimetal composite seamless steel pipe internal-surface according to claim 1, it is characterized in that described left limit baffle plate (1) and the upper each correspondence of right limit baffle plate (7) are provided with two through holes two, the left and right two ends of pair of brackets (2) are actively installed in through hole two respectively, left limit baffle plate (1) and right limit baffle plate (7) outside, support (2) are provided with the bolt (9) passing perpendicularly through support (2), bolt (9) are rotary with nut (8).
3. the device for the pickling of bimetal composite seamless steel pipe internal-surface according to claim 1 and 2, it is characterized in that described support bar is: the arc (3) of opening upwards, the two ends of arc (3) are respectively provided with a slip cap (12) matched with support (2), and each slip cap (12) slides respectively and is located on a support (2).
4. the device for the pickling of bimetal composite seamless steel pipe internal-surface according to claim 3, it is characterized in that logical acid tube that described sealing leads to sour device forms by with externally threaded steel pipe (6) and the logical aching and limp pipe (10) that is connected with steel pipe (6), mechanical seal pad (13) communicates with steel pipe (6) and is fixedly connected with, the upper cover of steel pipe (6) has fitting nut (4), and the outer side of shifting board (5) or left limit baffle plate (1) is close in one end of described fitting nut (4).
5. the device for the pickling of bimetal composite seamless steel pipe internal-surface according to claim 1, is characterized in that described thrust device (11) is screw block, cylinder, electric pushrod or hydraulic push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520367.1U CN204174286U (en) | 2014-09-11 | 2014-09-11 | For the device of bimetal composite seamless steel pipe internal-surface pickling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520367.1U CN204174286U (en) | 2014-09-11 | 2014-09-11 | For the device of bimetal composite seamless steel pipe internal-surface pickling |
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| Publication Number | Publication Date |
|---|---|
| CN204174286U true CN204174286U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520367.1U Expired - Fee Related CN204174286U (en) | 2014-09-11 | 2014-09-11 | For the device of bimetal composite seamless steel pipe internal-surface pickling |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962934A (en) * | 2015-06-05 | 2015-10-07 | 邯郸新兴特种管材有限公司 | Method for inner surface acid washing of bimetal composite steel pipes by using rigid inflation capsules |
| CN105862055A (en) * | 2016-05-25 | 2016-08-17 | 江苏省冶金设计院有限公司 | Acid pickling device for inner and outer surfaces of pipes |
| CN106756701A (en) * | 2017-02-07 | 2017-05-31 | 天津市富仁德钢管有限公司 | A kind of coating steel pipe clamping tool |
| CN109338389A (en) * | 2018-12-27 | 2019-02-15 | 首钢水城钢铁(集团)赛德建设有限公司 | A kind of slot type pipe pickling device and method |
| CN110484926A (en) * | 2019-09-03 | 2019-11-22 | 中核阿海珐(上海)锆合金管材有限公司 | A method of avoid nuclear power zirconium alloy cladding pipe pickling from generating shelf print |
| CN110578150A (en) * | 2019-09-11 | 2019-12-17 | 海宁市新恒隆不锈钢制品有限公司 | Degreasing treatment device used before scaling of seamless steel tube |
-
2014
- 2014-09-11 CN CN201420520367.1U patent/CN204174286U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962934A (en) * | 2015-06-05 | 2015-10-07 | 邯郸新兴特种管材有限公司 | Method for inner surface acid washing of bimetal composite steel pipes by using rigid inflation capsules |
| CN105862055A (en) * | 2016-05-25 | 2016-08-17 | 江苏省冶金设计院有限公司 | Acid pickling device for inner and outer surfaces of pipes |
| CN106756701A (en) * | 2017-02-07 | 2017-05-31 | 天津市富仁德钢管有限公司 | A kind of coating steel pipe clamping tool |
| CN106756701B (en) * | 2017-02-07 | 2019-11-05 | 天津市富仁德钢管有限公司 | A kind of coating steel pipe clamping tool |
| CN109338389A (en) * | 2018-12-27 | 2019-02-15 | 首钢水城钢铁(集团)赛德建设有限公司 | A kind of slot type pipe pickling device and method |
| CN110484926A (en) * | 2019-09-03 | 2019-11-22 | 中核阿海珐(上海)锆合金管材有限公司 | A method of avoid nuclear power zirconium alloy cladding pipe pickling from generating shelf print |
| CN110484926B (en) * | 2019-09-03 | 2021-07-06 | 中核法马通(上海)锆合金管材有限公司 | Method for preventing zirconium alloy cladding tube for nuclear power from being pickled to generate spacer printing |
| CN110578150A (en) * | 2019-09-11 | 2019-12-17 | 海宁市新恒隆不锈钢制品有限公司 | Degreasing treatment device used before scaling of seamless steel tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20170911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |