CN103276185A - Shaft component vibration induction heating method and apparatus - Google Patents
Shaft component vibration induction heating method and apparatus Download PDFInfo
- Publication number
- CN103276185A CN103276185A CN2013100119656A CN201310011965A CN103276185A CN 103276185 A CN103276185 A CN 103276185A CN 2013100119656 A CN2013100119656 A CN 2013100119656A CN 201310011965 A CN201310011965 A CN 201310011965A CN 103276185 A CN103276185 A CN 103276185A
- Authority
- CN
- China
- Prior art keywords
- vibration
- induction heating
- frequency
- equipment support
- supply lead
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- General Induction Heating (AREA)
Abstract
The invention discloses a shaft component vibration induction heating method and apparatus. The product belongs to the field of vibration and induction heating technology. The apparatus comprises: an auxiliary vibrator, a driven clamping sleeve, a movable equipment support, an infrared temperature sensor, a universal movable axis sleeve, an active clamping sleeve, a vibration exciter, a fixed power pedestal, a real time temperature supervision module, a vibration control power supply module, a temperature control data line power line, a sensor data power line, a vibrator control power line and a leading screw control power line. The invention and apparatus can realize vibration induction heating of shaft component, and synchronous double-frequency induction heating combined with the induction equipment with fixed frequency, thereby effectively improving heat treatment effect and efficiency, enlarging flexible production ability of equipment, and reducing investment cost and maintenance cost of production equipments. The invention has a wide application prospect in the field of component induction heating application technology.
Description
Technical field:
The present invention relates to vibration and induction heating technique field, particularly a kind of method and device that produces inductive loop enforcement heating by excited vibration axial workpiece in alternating magnetic field.
Background technology:
At present, be applied to the induction heating equipment of the double frequency thermal treatment process such as quenching, annealing, tempering of axial workpiece, use in industrial production and exist many drawbacks and limitation.For example 1: adopt in the past many fixed frequency induction heating equipment combination operations to realize form to axial workpiece timesharing multi-frequency induction heat treatment, its shortcoming: in heat treatment process, need mobile station frequently, it is big to have lost heat energy, influence thermal effectiveness, reduced production efficiency.For example 2: adopt in the past double frequency induction heating equipment to realize form to the synchronous double frequency induction heat treatment of axial workpiece, its shortcoming: when axial workpiece realizes that at needs synchronous double frequency heats in different frequency scopes such as low frequency, ultrasonic frequency, intermediate frequency, high frequency, existing double frequency induction heating equipment can't satisfy the processing needs, the synchronous double frequency induction heating equipment that needs extra additional other range of frequency, the cost of investment that increases manufacturing facilities and maintenance cost are unfavorable for the flexible processed and applied of induction heating equipment.Thus, the hot-treatment heating equipment that axial workpiece double frequency thermal treatment is at present adopted, it is low to exist time division multiplexing position treatment production efficient, drawback such as the flexible difference of double frequency treatment production synchronously, and do not have other new induction heating equipment and can replace.
Above-mentioned shortcoming has limited the widespread use of induction heating equipment in axial workpiece thermal treatment to a certain extent, for what address the above problem, the present invention utilizes cylindrical metal body double vibrations in the magnetic field that the sleeve shaped coil that feeds alternating-current produces, the to-and-fro movement of cylindrical metal body, the magnetic flux of the change that does not stop self, produce the induced current of alternation, the principle of the joule heating heating of metal body by eddying effect, a kind of axial workpiece vibration induction heating means and heating unit have been proposed, can improve the heat treated production efficiency in time division multiplexing position, it is flexible to improve the heat treated production of synchronous double frequency, improve thermal effectiveness, reduce investment of production equipment cost and maintenance cost.
Summary of the invention:
The drawback that purpose of the present invention is used in axial workpiece thermal treatment at existing double frequency induction heating equipment, the heating means that provide a kind of vibration induction heating and coil-induced heating to combine, the present invention also provides the induction heating isolated plant of this method of use.
The present invention in order to solve the problems of the technologies described above the technical scheme that adopts is:
Axial workpiece is nested in the sleeve shaped ruhmkorff coil, feed the exchange current of fixed frequency for the sleeve shaped ruhmkorff coil, vibration machine drives the axial workpiece that is inserted in the sleeve shaped ruhmkorff coil and does double vibrations vertically with certain frequency, is implemented in the vibration induction heating of axial workpiece; It is used in combination with the induction heating equipment of fixed frequency, can realize synchronous double frequency induction heating; Can change vibration induction eddy current frequency on the fixed frequency that is added to by the frequency of adjusting vibration in good time.
The invention provides the induction heating equipment of using fixed frequency and realize the novel method of timesharing and synchronous double frequency induction heating, can improve time division multiplexing position treatment production efficient, improve synchronous double frequency treatment production flexibility, improve thermal effectiveness, reduce investment of production equipment cost and maintenance cost, the induction heating applied technical field is with a wide range of applications.
The invention provides a kind of axial workpiece vibration induction heating unit:
This isolated plant is applied to heat the thermal treatment of axial workpiece, and it comprises with lower member: auxiliary vibrator, driven retaining sleeve, movable equipment support, infrared temperature sensor, universal movable axle sleeve, active retaining sleeve, vibration exciter, stationary power base, real time temperature monitor module, vibration control power module, temperature control data line supply lead, sensing data supply lead, vibrator control supply lead, leading screw control supply lead.It is characterized in that: auxiliary vibrator and vibration exciter are installed on the movable equipment support, auxiliary vibrator and driven clamping interlock and connect, initiatively retaining sleeve is connected with vibration exciter, the movable equipment support is connected with leading screw with the stationary power base, universal movable axle sleeve is installed on the movable equipment support, infrared temperature sensor is installed in the axle sleeve of universal movable axle sleeve, the temperature monitoring module is connected on the movable equipment support with the sensing data supply lead, the vibration control power module is connected on the movable equipment support with vibrator control supply lead, the real time temperature monitor module is connected with temperature control data line supply lead with the vibration control power module, and the stationary power base is connected with leading screw control supply lead with the vibration control power module.
In apparatus of the present invention, vibration exciter adopts sandwich piezoelectricity tangent bend composite mode transducer architecture; By the angle on universal movable axle sleeve adjusting infrared temperature sensor and the vertical direction, its scope is between-90 ° ~ 90 °; The stationary power base adopts leading screw to be connected drive system with the movable equipment support and adopts the leading screw driving.
The unlatching of real time temperature monitor module control infrared temperature sensor; The real time temperature monitor module is gathered the real time temperature data and is transferred to the vibration control power module; Vibrational frequency and the unlatching of vibration control power module control vibration exciter; Speed of feed and the unlatching of vibration control power module control stationary power base.
The present invention has following beneficial effect:
1, provide a kind of new vibration induction type of heating to realize timesharing and synchronous double frequency induction heating, for industrial heating axial workpiece provides novel method and new way.
2, present method and device use in conjunction with the induction heating equipment of fixed frequency, can realize the heat treated synchronous double frequency induction heating of axial workpiece, the frequency of the vibration induction eddy current that the frequency shift of vibrating by adjustment superposes, enlarged the frequency range of choice of double frequency induction heating, improve synchronous double frequency treatment production flexibility, reduce investment of production equipment cost and maintenance cost.
3, present method and device use in conjunction with the induction heating equipment of fixed frequency, can realize the heat treated timesharing double frequency of axial workpiece induction heating, save the operation that needs frequent mobile station, effectively control heat energy loss, promote thermal effectiveness, improved production efficiency.
4, compact construction, enforcement are simple.
Description of drawings:
Fig. 1, axial workpiece vibration induction heating unit synoptic diagram.
Among the figure: 1 auxiliary vibrator, 2 driven retaining sleeves, 3 movable equipment supports, 4 infrared temperature sensors,
5 universal movable axle sleeves, 6 active retaining sleeves, 7 vibration exciters, 8 stationary power bases, 9 real time temperature monitor modules,
10 vibration control power modules, 11 temperature control data line supply leads, 12 sensing data supply leads,
13 vibrators control supply lead, 14 leading screws control supply lead
Embodiment:
In order to realize vibration induction heating unit of the present invention, need the induction heating device of a fixed frequency, its heating jacket tubular coil can be realized the station of coil axis horizontal positioned as shown in Figure 1.
Below in conjunction with accompanying drawing specific embodiments of the present invention is illustrated.
Scheme one: induction heating equipment and vibration induction device synchronization are opened, and axial workpiece is carried out the double frequency heating.At first open real time temperature monitor module (9), infrared temperature sensor (4) is started working.When opening induction heating equipment, open vibration control power module (9) control vibration exciter (7) excited vibration, vibration exciter (9) excites the vibration of certain frequency, hold cover (6) by initiatively adding, drivenly add the vibration that realizes axial workpiece that cooperates of holding cover (2) and auxiliary vibrator (1), universal movable axle sleeve (5) is fixed on the position of the Heating temperature that needs measurement, infrared temperature sensor (4) assigns in the universal movable axle sleeve (5), and the probe of infrared temperature sensor (4) turns on the direction of the temperature that needs measurement.The temperature that infrared temperature sensor (4) is measured is transferred to real time temperature monitor module (9) by signal wire, pass to vibration control power module (10) through the signal after real time temperature monitor module (9) processing, according to test Heating temperature needs, control stationary power base (8) promotes movable equipment support (3) and does horizontal ahead running by vibration control power module (10).Process to be heated is finished, and closes induction heating equipment earlier, closes vibration exciter (7) by vibration control power module (9) then and stops vibration.Infrared temperature sensor (4) is closed in real time temperature monitor module (9) control.
Scheme two: induction heating equipment is opened earlier and is carried out the induction preheating of single fixed frequency, after for some time to be heated, opens vibration induction equipment again, and axial workpiece is carried out the double frequency induction heating.At first open real time temperature monitor module (9), infrared temperature sensor (4) is started working.Opening induction heating equipment, after temperature to be heated rises to preheating temperature, open vibration control power module (9) control vibration exciter (7) excited vibration, vibration exciter (9) excites the vibration of certain frequency, hold cover (6) by initiatively adding, drivenly add the vibration that realizes axial workpiece that cooperates of holding cover (2) and auxiliary vibrator (1), universal movable axle sleeve (5) is fixed on the position of the Heating temperature that needs measurement, infrared temperature sensor (4) assigns in the universal movable axle sleeve (5), and the probe of infrared temperature sensor (4) turns on the direction of the temperature that needs measurement.The temperature that infrared temperature sensor (4) is measured is transferred to real time temperature monitor module (9) by signal wire, pass to vibration control power module (10) through the signal after real time temperature monitor module (9) processing, according to test Heating temperature needs, control stationary power base (8) promotes movable equipment support (3) and does horizontal ahead running by vibration control power module (10).Process to be heated is finished, and closes induction heating equipment earlier, closes vibration exciter (7) by vibration control power module (9) then and stops vibration.Infrared temperature sensor (4) is closed in real time temperature monitor module (9) control.
The inventive method and device can be realized the double frequency induction heat treatment of axial workpiece, can effectively improve thermal effectiveness, improve heat treatment efficiency, enlarge equipment flexible production ability, reduce investment of production equipment cost and maintenance cost.The present invention is with a wide range of applications to axial workpiece induction heating applied technical field.
Claims (8)
1. a vibration induction heating isolated plant comprises: auxiliary vibrator (1), driven retaining sleeve (2), movable equipment support (3), infrared temperature sensor (4), universal movable axle sleeve (5), active retaining sleeve (6), vibration exciter (7), stationary power base (8), real time temperature monitor module (9), vibration control power module (10), temperature control data line supply lead (11), sensing data supply lead (12), vibrator control supply lead (13), leading screw control supply lead (14).It is characterized in that: auxiliary vibrator (1) and vibration exciter (7) are installed on the movable equipment support (3), auxiliary vibrator (1) is connected with driven retaining sleeve (2), initiatively retaining sleeve (6) is connected with vibration exciter (7), movable equipment support (3) is connected with leading screw with stationary power base (8), universal movable axle sleeve (5) is installed on the movable equipment support (3), infrared temperature sensor (4) is installed in the axle sleeve of universal movable axle sleeve (5), temperature monitoring module (9) is connected on the movable equipment support (3) with sensing data supply lead (12), vibration control power module (10) is controlled supply lead (13) with vibrator and is connected on the movable equipment support (3), real time temperature monitor module (9) is connected with temperature control data line supply lead (11) with vibration control power module (10), and stationary power base (8) is controlled supply lead (14) with vibration control power module (10) with leading screw and is connected.
2. according to the described vibration inductor of claim 1, it is characterized in that vibration exciter (7) adopts sandwich piezoelectricity tangent bend composite mode transducer architecture.
3. according to the described vibration inductor of claim 1, it is characterized in that movable equipment support (3) is gone up the plane and is provided with the dovetail-indent of fixing universal movable axle sleeve (5), auxiliary vibrator (1) and vibration exciter (7) respectively.Universal movable axle sleeve (5), auxiliary vibrator (1) and vibration exciter (7) can be gone up the suitable position of any level at movable equipment support (3) and install and fix.
4. according to the described vibration inductor of claim 1, it is characterized in that by the angle on universal movable axle sleeve (5) adjusting infrared temperature sensor (4) and the vertical direction, its scope is between-90 ° ~ 90 °.
5. according to the described vibration inductor of claim 1, it is characterized in that stationary power base (8) adopts leading screw to be connected drive system with movable equipment support (3) and adopts the leading screw driving.
6. vibration induction heating means, it is characterized in that, axial workpiece is nested in the sleeve shaped ruhmkorff coil, feed the exchange current of fixed frequency for the sleeve shaped ruhmkorff coil, vibration machine drives the axial workpiece that is inserted in the sleeve shaped ruhmkorff coil and does double vibrations vertically with certain frequency, is implemented in the vibration induction heating of axial workpiece.
7. in accordance with the method for claim 6, it is characterized in that, be used in combination with the induction heating equipment of fixed frequency, can realize synchronous double frequency induction heating.
8. in accordance with the method for claim 6, it is characterized in that, can change vibration induction eddy current frequency on the fixed frequency that is added to by the frequency of adjusting vibration in good time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011965.6A CN103276185B (en) | 2013-01-14 | 2013-01-14 | Shaft component vibration induction heating method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011965.6A CN103276185B (en) | 2013-01-14 | 2013-01-14 | Shaft component vibration induction heating method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103276185A true CN103276185A (en) | 2013-09-04 |
| CN103276185B CN103276185B (en) | 2014-08-06 |
Family
ID=49058800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310011965.6A Expired - Fee Related CN103276185B (en) | 2013-01-14 | 2013-01-14 | Shaft component vibration induction heating method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103276185B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164547A (en) * | 2014-07-22 | 2014-11-26 | 沈阳航空航天大学 | Local thermal treatment based destressing and shaping method and device for metal members after repairing |
| CN106086320A (en) * | 2016-08-24 | 2016-11-09 | 常州市玮文金属科技有限公司 | A kind of device quickly carrying out surface induction hardening and annealing |
| CN107354285A (en) * | 2017-07-31 | 2017-11-17 | 江苏宝京汽车部件有限公司 | A kind of axletree class tubing member weld seam destressing device and method for removing stress |
| CN107716738A (en) * | 2017-12-01 | 2018-02-23 | 江苏科技大学 | A kind of sensing heating levelling machine traveling heater |
| CN107872905A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of axial workpiece induction heating technology experimental method and experiment porch |
| CN108193039A (en) * | 2018-02-11 | 2018-06-22 | 湖南耐特材料科技有限公司 | A kind of annealing device for being used for plank and bar |
| CN112588861A (en) * | 2020-11-23 | 2021-04-02 | 江西联创光电超导应用有限公司 | Bracket structure for feeding and discharging component and operation method |
| CN113057873A (en) * | 2021-04-13 | 2021-07-02 | 四川千里倍益康医疗科技股份有限公司 | Massage head heating control system and method based on pressure detection |
| CN113458712A (en) * | 2021-06-30 | 2021-10-01 | 兴化市金牛机械铸造有限公司 | Intelligent measurement and control heating device applied to processing of connecting shaft sleeve of metallurgical mechanical accessory |
| US11524320B2 (en) * | 2019-07-11 | 2022-12-13 | Baranko Environmental LLC | Sucker rod cleaning using inductive heating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335840A (en) * | 2000-05-29 | 2001-12-04 | Fuji Electronics Industry Co Ltd | Work supporting device for hardening bar-like work and movable hardening machine using this device |
| US20060157476A1 (en) * | 2003-01-24 | 2006-07-20 | Sintef Energiforskning As | Apparatus and a method for induction heating of pieces of electrically conducting and non-magnetic material |
| JP4113813B2 (en) * | 2003-08-08 | 2008-07-09 | 日本アジャックス・マグネサーミック株式会社 | Induction heating device |
| CN101801125A (en) * | 2010-03-12 | 2010-08-11 | 冯伟年 | Induction heater, induction heating treatment equipment and induction heating treatment method |
| CN101836501A (en) * | 2007-10-24 | 2010-09-15 | 泽奈基电力公司 | Method for inductive heating of a metallic workpiece |
| CN102641959A (en) * | 2012-05-08 | 2012-08-22 | 哈尔滨工业大学 | Rapid uniform heating method for metal tube |
-
2013
- 2013-01-14 CN CN201310011965.6A patent/CN103276185B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335840A (en) * | 2000-05-29 | 2001-12-04 | Fuji Electronics Industry Co Ltd | Work supporting device for hardening bar-like work and movable hardening machine using this device |
| US20060157476A1 (en) * | 2003-01-24 | 2006-07-20 | Sintef Energiforskning As | Apparatus and a method for induction heating of pieces of electrically conducting and non-magnetic material |
| JP4113813B2 (en) * | 2003-08-08 | 2008-07-09 | 日本アジャックス・マグネサーミック株式会社 | Induction heating device |
| CN101836501A (en) * | 2007-10-24 | 2010-09-15 | 泽奈基电力公司 | Method for inductive heating of a metallic workpiece |
| CN101801125A (en) * | 2010-03-12 | 2010-08-11 | 冯伟年 | Induction heater, induction heating treatment equipment and induction heating treatment method |
| CN102641959A (en) * | 2012-05-08 | 2012-08-22 | 哈尔滨工业大学 | Rapid uniform heating method for metal tube |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164547B (en) * | 2014-07-22 | 2017-01-25 | 沈阳航空航天大学 | Local thermal treatment based destressing and shaping method and device for metal members after repairing |
| CN104164547A (en) * | 2014-07-22 | 2014-11-26 | 沈阳航空航天大学 | Local thermal treatment based destressing and shaping method and device for metal members after repairing |
| CN106086320A (en) * | 2016-08-24 | 2016-11-09 | 常州市玮文金属科技有限公司 | A kind of device quickly carrying out surface induction hardening and annealing |
| CN107872905B (en) * | 2016-09-23 | 2024-04-09 | 中国石油化工股份有限公司 | Experimental method and experimental platform for induction heating process of shaft parts |
| CN107872905A (en) * | 2016-09-23 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of axial workpiece induction heating technology experimental method and experiment porch |
| CN107354285A (en) * | 2017-07-31 | 2017-11-17 | 江苏宝京汽车部件有限公司 | A kind of axletree class tubing member weld seam destressing device and method for removing stress |
| CN107716738A (en) * | 2017-12-01 | 2018-02-23 | 江苏科技大学 | A kind of sensing heating levelling machine traveling heater |
| CN108193039A (en) * | 2018-02-11 | 2018-06-22 | 湖南耐特材料科技有限公司 | A kind of annealing device for being used for plank and bar |
| US11524320B2 (en) * | 2019-07-11 | 2022-12-13 | Baranko Environmental LLC | Sucker rod cleaning using inductive heating |
| CN112588861B (en) * | 2020-11-23 | 2023-06-06 | 江西联创光电超导应用有限公司 | Bracket structure for feeding and discharging parts and operation method |
| CN112588861A (en) * | 2020-11-23 | 2021-04-02 | 江西联创光电超导应用有限公司 | Bracket structure for feeding and discharging component and operation method |
| CN113057873A (en) * | 2021-04-13 | 2021-07-02 | 四川千里倍益康医疗科技股份有限公司 | Massage head heating control system and method based on pressure detection |
| CN113057873B (en) * | 2021-04-13 | 2022-07-26 | 四川千里倍益康医疗科技股份有限公司 | Massage head heating control system and method based on pressure detection |
| CN113458712A (en) * | 2021-06-30 | 2021-10-01 | 兴化市金牛机械铸造有限公司 | Intelligent measurement and control heating device applied to processing of connecting shaft sleeve of metallurgical mechanical accessory |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103276185B (en) | 2014-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103276185B (en) | Shaft component vibration induction heating method and apparatus | |
| CN103128603B (en) | Ultrasound magnetic force composite efficient finishing process device | |
| CN102207439B (en) | Experimental equipment for simulating friction and wear of roll and rolled piece in rolling process | |
| CN103707025B (en) | Disassembling system | |
| CN102357650A (en) | Steel liquid solidification simulator in continuous casting crystallizer | |
| CN109663821A (en) | A kind of adjustable inductive answers heating rolling device and method | |
| JP6292538B2 (en) | Foreign matter removal device for non-contact power feeding device | |
| CN203579915U (en) | Fret saw machining system capable of being reconstructed | |
| CN105385841A (en) | Residual stress releasing process device and stress releasing method for manufacturing process of long truss of wing | |
| CN105337425B (en) | A kind of dynamic radio energy transfer system, method and transmitting coil device | |
| CN100462448C (en) | Method of bearing ball annealing and device using the method | |
| CN101113639A (en) | Sandwich plate flattng device | |
| CN200997697Y (en) | Inductive heater | |
| CN102794384A (en) | Pipe material conveying device and method | |
| CN205958558U (en) | Metal detector | |
| CN105506260A (en) | Atmosphere-protection induction-heating continuous annealing apparatus for pipe | |
| CN203999725U (en) | Matrix material transfer lime inside and outside wall is quenching machine simultaneously | |
| CN204752805U (en) | Axostylus axostyle class surface hardening equipment | |
| CN102497688A (en) | Induction heating technique for double-sided roll forming of discal parts | |
| CN203830835U (en) | Metal band saw saw-cutting device based on double pulse characteristics | |
| CN203135685U (en) | M-type conductor ring permanent magnet governor | |
| KR101393889B1 (en) | Apparatus for Induction Heating | |
| CN103882207A (en) | Medium-frequency quenching process of smoothing roll and quenching equipment thereof | |
| CN202936452U (en) | Chain heating equipment | |
| CN202462899U (en) | Steel-plastic composite tube production equipment |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENGLI COLLEGE, CHINA UNIVERSITY OF PETROLEUM Free format text: FORMER OWNER: CHINA UNIVERSITY OF PETROLEUM AST CHINA Effective date: 20150416 Owner name: CHINA UNIVERSITY OF PETROLEUM AST CHINA Effective date: 20150416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 266580 QINGDAO, SHANDONG PROVINCE TO: 257097 DONGYING, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150416 Address after: 257097 No. two, 271 North Road, Shandong, Dongying Patentee after: SHENGLI COLLEGE CHINA UNIVERSITY OF PETROLEUM Patentee after: China Petroleum University (East China) Address before: 266580 Qingdao economic and Technological Development Zone, Changjiang Road, No. 66, Shandong Patentee before: China Petroleum University (East China) |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200114 |