CN112323003B - Titanium alloy heat treatment stress relieving and deformation control device - Google Patents
Titanium alloy heat treatment stress relieving and deformation control device Download PDFInfo
- Publication number
- CN112323003B CN112323003B CN202011167893.0A CN202011167893A CN112323003B CN 112323003 B CN112323003 B CN 112323003B CN 202011167893 A CN202011167893 A CN 202011167893A CN 112323003 B CN112323003 B CN 112323003B
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- bevel gear
- shaft
- supporting
- supporting roller
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to the technical field of material processing, in particular to a stress relieving and deformation control device for titanium alloy heat treatment, which comprises a bearing seat, wherein a driving shaft is rotatably arranged in the bearing seat, a supporting roller is fixedly arranged on the driving shaft, spiral threads are arranged in the supporting roller, a balance shaft is fixedly arranged on the supporting roller, the balance shaft is rotatably arranged on a supporting block, a cavity is arranged in the supporting block, a driving bevel gear is fixedly arranged on the balance shaft, a driven bevel gear is arranged on the driving bevel gear in a meshing manner, the driven bevel gear is fixedly arranged on a vertical shaft, and a cam is fixedly arranged on the vertical shaft; the titanium alloy pipe is slowly pushed by the supporting roller arranged in the annealing furnace, the titanium alloy pipe continuously moves and rotates in the cooling process, a fixed contact point does not exist between the pipe and the roller way, the workpiece is heated more uniformly, no damage is caused, and the possibility of deformation of the pipe is effectively reduced.
Description
Technical Field
The invention relates to the technical field of material processing, in particular to a titanium alloy heat treatment stress relief and deformation control device.
Background
Titanium alloy is an important structural metal, and is widely used in various fields due to the characteristics of high strength, good corrosion resistance, high heat resistance and the like, in the process of processing a titanium alloy pipe, heat treatment is an important step, annealing treatment is carried out through an annealing furnace, the titanium alloy pipe can effectively eliminate internal stress through the whole process of heating, heat preservation and cooling, but in the annealing treatment process, the titanium alloy pipe is likely to deform due to the change of temperature, so that the quality is reduced.
Temperature control in the cooling process is one of important ways of deformation control, the faster the cooling speed is, the more uneven the cooling is, the larger the generated stress is, and the larger the deformation of the die is, so that many annealing furnaces adopt graded cooling quenching at present, the thermal stress and the structural stress generated in metal quenching can be obviously reduced, and the method is an effective method for reducing the deformation of a workpiece.
Disclosure of Invention
The present invention is directed to a stress relieving and deformation controlling device for titanium alloy heat treatment, so as to solve the above problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the titanium alloy heat treatment stress relieving and deformation control device comprises a bearing seat, wherein a driving shaft is rotatably installed in the bearing seat, a supporting roller is fixedly installed on the driving shaft, spiral grains are formed in the supporting roller, a balance shaft is fixedly installed on the supporting roller, the balance shaft is rotatably installed on a supporting block, a cavity is formed in the supporting block, a driving bevel gear is fixedly installed on the balance shaft, a driven bevel gear is installed on the driving bevel gear in a meshed mode, the driven bevel gear is fixedly installed on a vertical shaft, a cam is fixedly installed on the vertical shaft, a sliding rail is fixedly connected onto the supporting block, a pressing sleeve is slidably installed in the sliding rail, a sliding rod is fixedly installed on the pressing sleeve, a spring is sleeved on the sliding rod, a rotating rod is rotatably installed on the sliding rod, a guide column is fixedly installed on the rotating rod, and a push plate is fixedly installed at one end of the guide column, a baffle is fixedly mounted on one side of the supporting block, a guide groove is formed in the baffle, and balls are movably mounted on the baffle.
Preferably, the bearing seat and the supporting block are vertically and oppositely arranged in the annealing furnace cooling box, bearings are arranged inside the bearing seat and the supporting block, the driving shaft and the balance shaft are respectively arranged at two ends of the supporting roller, and the supporting roller is positioned between the bearing seat and the supporting block.
Preferably, the drive shaft is driven by a motor, the supporting roller is a curved roller, the spiral threads are arranged on the surface of the supporting roller in a single direction, the baffle is positioned above the supporting roller, and the balls are arranged on the side surface of the baffle through a spherical pair.
Preferably, the driving bevel gear and the driven bevel gear are located in the cavity, the vertical shaft is vertically installed in the cavity through a bearing, the cam is located on the upper portion of the vertical shaft, the cam surface is in contact with the pressing sleeve, and two ends of the spring are respectively connected between the pressing sleeve and the sliding rail.
Preferably, the tip of slide bar runs through the logical groove of slide rail and sets up, and the bull stick passes through the pivot and installs the tip at the slide bar, the guide post is installed in the side of bull stick, and the guide post is spacing to slide in the guide way.
Preferably, the guide groove is arranged on the side surface of the baffle, the guide groove is a closed groove connected end to end, the guide groove is composed of a pushing groove and a returning groove, and the pushing plate is arranged at the end part of the rotating rod.
Compared with the prior art, the invention has the beneficial effects that:
1. the titanium alloy pipe is slowly pushed by the supporting roll arranged in the annealing furnace to complete the annealing cooling process to eliminate internal stress, the supporting roll can rotate and guide through spiral grains on the supporting roll, so that the titanium alloy pipe rotates preliminarily, meanwhile, the supporting roll rotates and drives a rotating rod to reciprocate through a transmission structure, so that the titanium alloy pipe is pushed to rotate by the push plate from the top in an auxiliary manner, the titanium alloy pipe continuously moves and rotates in the cooling process, a fixed contact point does not exist between the pipe and a roller way, the workpiece is heated more uniformly without damage, and the possibility of deformation of the pipe is effectively reduced;
2. according to the invention, the pipe is limited by the baffle arranged above the supporting roller, and the ball is arranged on the baffle through the spherical pair, so that the mobility of the pipe can be ensured when the pipe is positioned, the rotation of the titanium alloy pipe cannot be interfered, and the uniform heating is ensured.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is an enlarged schematic view of the area a in fig. 1.
In the figure: the device comprises a bearing seat 1, a driving shaft 2, a supporting roller 3, a spiral thread 4, a balance shaft 5, a supporting block 6, a cavity 7, a driving bevel gear 8, a driven bevel gear 9, a vertical shaft 10, a cam 11, a sliding rail 12, a pressing sleeve 13, a sliding rod 14, a spring 15, a rotating rod 16, a guide column 17, a push plate 18, a baffle plate 19, a guide groove 20 and balls 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: the titanium alloy heat treatment stress relieving and deformation control device comprises a bearing seat 1, wherein a driving shaft 2 is rotatably installed in the bearing seat 1, a supporting roller 3 is fixedly installed on the driving shaft 2, spiral threads 4 are formed in the supporting roller 3, a balance shaft 5 is fixedly installed on the supporting roller 3, the balance shaft 5 is rotatably installed on a supporting block 6, a cavity 7 is formed in the supporting block 6, a driving bevel gear 8 is fixedly installed on the balance shaft 5, a driven bevel gear 9 is installed on the driving bevel gear 8 in a meshed mode, the driven bevel gear 9 is fixedly installed on a vertical shaft 10, a cam 11 is fixedly installed on the vertical shaft 10, a sliding rail 12 is fixedly connected onto the supporting block 6, a pressing sleeve 13 is slidably installed in the sliding rail 12, a sliding rod 14 is fixedly installed on the pressing sleeve 13, a spring 15 is sleeved on the sliding rod 14, and a rotating rod 16 is rotatably installed on the sliding rod 14, and a guide post 17 is fixedly installed on the rotating rod 16, a push plate 18 is fixedly installed at one end of the guide post 17, a baffle plate 19 is fixedly installed at one side of the supporting block 6, a guide groove 20 is formed in the baffle plate 19, and a ball 21 is movably installed on the baffle plate 19.
The bearing seat 1 and the supporting block 6 are vertically and oppositely arranged in the annealing furnace cooling box, bearings are arranged inside the bearing seat 1 and the supporting block 6, the driving shaft 2 and the balance shaft 5 are respectively arranged at two ends of the supporting roller 3, the supporting roller 3 is positioned between the bearing seat 1 and the supporting block 6, and the supporting roller 3 is arranged through the bearing seat 1 and the supporting block 6, so that the supporting roller 3 is used for transporting titanium alloy pipe workpieces;
the driving shaft 2 is driven by a motor, the supporting roller 3 is a curved roller, the spiral grains 4 are arranged on the surface of the supporting roller 3 in a one-way mode, the baffle plate 19 is positioned above the supporting roller 3, the rolling balls 21 are installed on the side face of the baffle plate 19 through a spherical pair, the heated titanium alloy pipe is placed on the supporting roller 3, the motor drives the supporting roller 3 to rotate through the driving shaft 2, so that the titanium alloy pipe on the supporting roller moves forwards, meanwhile, the spiral grains 4 on the supporting roller 3 have certain side guiding capacity, the pipe can rotate, the rolling balls 21 are in contact with the surface of the titanium alloy pipe, limiting of the pipe is carried out, the rolling balls 21 can rotate freely, and the mobility of the pipe is guaranteed;
the driving bevel gear 8 and the driven bevel gear 9 are positioned in the cavity 7, the vertical shaft 10 is vertically installed in the cavity 7 through a bearing, the cam 11 is positioned at the upper part of the vertical shaft 10, the surface of the cam 11 is in contact with the pressing sleeve 13, two ends of the spring 15 are respectively connected between the pressing sleeve 13 and the sliding rail 12, when the supporting roller 3 rotates, the balance shaft 5 drives the driving bevel gear 8 to rotate, so that the driven bevel gear 9 is driven, the vertical shaft 10 rotates in the cavity 7, the cam 11 continuously rotates to press the pressing sleeve 13, and the spring 15 on the other surface of the pressing sleeve 13 plays a role in resetting, so that the pressing sleeve 13 drives the sliding rod 14 to continuously reciprocate;
the end part of the sliding rod 14 penetrates through the through groove of the sliding rail 12 to be arranged, the rotating rod 16 is installed at the end part of the sliding rod 14 through a rotating shaft, the guide post 17 is installed on the side surface of the rotating rod 16, the guide post 17 slides in the guide groove 20 in a limiting manner, the sliding rod 14 reciprocates left and right, when the sliding rod 14 moves rightwards, the rotating rod 16 can be pushed rightwards, so that the rotating rod 16 moves under the guide of the guide post 17, and when the sliding rod 14 moves leftwards, the rotating rod 16 is driven to reset;
the guide groove 20 is arranged on the side surface of the baffle plate 19, the guide groove 20 is a closed groove connected end to end, the guide groove 20 consists of a pushing groove and a returning groove, the push plate 18 is arranged at the end part of the rotating rod 16, the guide post 17 completes a circle of rotation in the guide groove 20 in the process that the rotating rod 16 completes a reciprocating movement, the angle of the rotating rod 16 is changed by taking the guide post 17 as the center, the push plate 18 can be driven to be in contact with the surface of the titanium alloy pipe when the guide post 17 moves along the pushing groove of the guide groove 20, the rotation of the pipe is assisted, and the pipe is cooled more uniformly by matching with the pushing of the spiral threads 4;
the working principle is as follows: firstly, a bearing seat 1 and a supporting block 6 are oppositely arranged in a cooling box of an annealing furnace, a supporting roll 3 is arranged through the bearing seat 1 and the supporting block 6, so that a titanium alloy pipe workpiece is transported by using the supporting roll 3, a motor drives the supporting roll 3 to rotate through a driving shaft 2, so that the titanium alloy pipe on the supporting roll is moved forward, and meanwhile, a spiral thread 4 on the supporting roll 3 has certain side guiding capacity, so that the pipe can rotate to a certain degree, a ball 21 is in contact with the surface of the titanium alloy pipe to limit the pipe, and the ball 21 can rotate freely, so that the mobility of the pipe is ensured; meanwhile, when the supporting roller 3 rotates, the balance shaft 5 drives the driving bevel gear 8 to rotate, so as to drive the driven bevel gear 9, the vertical shaft 10 rotates in the cavity 7, the cam 11 continuously rotates to press the pressing sleeve 13, the other side spring 15 of the pressing sleeve 13 plays a role of resetting, the pressing sleeve 13 drives the sliding rod 14 to continuously reciprocate, when the sliding rod 14 moves rightwards, the rotating rod 16 can be pushed rightwards, so that the rotating rod 16 moves under the guidance of the guide post 17, when the sliding rod 14 moves leftwards, the rotating rod 16 is driven to reset, in the process that the rotating rod 16 completes one reciprocating movement, the guide post 17 also completes one circle of rotation in the guide groove 20, the angle of the rotating rod 16 is changed by taking the guide post 17 as the center, when the guide post 17 moves along the pushing groove of the guide groove 20, the pushing plate 18 can be driven to contact with the surface of the titanium alloy pipe to assist in the rotation of the pipe, the pipe is cooled more uniformly by being pushed by the spiral threads 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Titanium alloy thermal treatment stress relief and deformation controlling means, including bearing frame (1), its characterized in that: the bearing seat is characterized in that a driving shaft (2) is rotatably mounted in the bearing seat (1), a supporting roller (3) is fixedly mounted on the driving shaft (2), spiral threads (4) are unidirectionally arranged on the surface of the supporting roller (3), a balance shaft (5) is fixedly mounted on the supporting roller (3), the balance shaft (5) is rotatably mounted on a supporting block (6), a cavity (7) is formed in the supporting block (6), a driving bevel gear (8) is fixedly mounted on the balance shaft (5), a driven bevel gear (9) is mounted on the driving bevel gear (8) in a meshed manner, the driven bevel gear (9) is fixedly mounted on a vertical shaft (10), a cam (11) is fixedly mounted on the vertical shaft (10), a sliding rail (12) is fixedly connected to the supporting block (6), a pressing sleeve (13) is slidably mounted in the sliding rail (12), a sliding rod (14) is fixedly mounted on the pressing sleeve (13), a spring (15) is sleeved on the sliding rod (14), a rotating rod (16) is rotatably mounted on the sliding rod (14), a guide post (17) is fixedly mounted on the rotating rod (16), a push plate (18) is fixedly mounted at one end of the guide post (17), a baffle (19) is fixedly mounted on one side of the supporting block (6), a guide groove (20) is formed in the baffle (19), and a ball (21) is movably mounted on the baffle (19); the bearing block (1) and the supporting block (6) are vertically and oppositely arranged in the annealing furnace cooling box.
2. The titanium alloy heat treatment stress relief and deformation control device of claim 1, wherein: the bearing is installed in the inside of bearing frame (1) and supporting shoe (6) all, drive shaft (2) and balance shaft (5) are installed respectively at the both ends of backing roll (3), and backing roll (3) are located between bearing frame (1) and supporting shoe (6).
3. The titanium alloy heat treatment stress relief and deformation control device of claim 1, wherein: the driving shaft (2) is driven by a motor, the supporting roller (3) is a curved roller, the baffle (19) is positioned above the supporting roller (3), and the ball (21) is arranged on the side surface of the baffle (19) through a spherical pair.
4. The titanium alloy heat treatment stress relief and deformation control device of claim 1, wherein: the driving bevel gear (8) and the driven bevel gear (9) are located in the cavity (7), the vertical shaft (10) is vertically installed in the cavity (7) through a bearing, the cam (11) is located on the upper portion of the vertical shaft (10), the surface of the cam (11) is in contact with the pressing sleeve (13), and two ends of the spring (15) are respectively connected between the pressing sleeve (13) and the sliding rail (12).
5. The titanium alloy heat treatment stress relief and deformation control device of claim 1, wherein: the tip of slide bar (14) runs through the logical groove of slide rail (12) and sets up, and bull stick (16) are installed at the tip of slide bar (14) through the pivot, guide post (17) are installed in the side of bull stick (16), and guide post (17) are spacing to slide in guide way (20).
6. The titanium alloy heat treatment stress relief and deformation control device of claim 1, wherein: the guide groove (20) is arranged on the side surface of the baffle plate (19), the guide groove (20) is a closed groove connected end to end, the guide groove (20) is composed of a pushing groove and a returning groove, and the pushing plate (18) is arranged at the end part of the rotating rod (16).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011167893.0A CN112323003B (en) | 2020-10-28 | 2020-10-28 | Titanium alloy heat treatment stress relieving and deformation control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011167893.0A CN112323003B (en) | 2020-10-28 | 2020-10-28 | Titanium alloy heat treatment stress relieving and deformation control device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112323003A CN112323003A (en) | 2021-02-05 |
CN112323003B true CN112323003B (en) | 2021-09-24 |
Family
ID=74296155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011167893.0A Active CN112323003B (en) | 2020-10-28 | 2020-10-28 | Titanium alloy heat treatment stress relieving and deformation control device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112323003B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115369338B (en) * | 2022-08-19 | 2023-01-24 | 内蒙古工业大学 | Magnesium alloy surface toughening equipment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201952465U (en) * | 2011-01-23 | 2011-08-31 | 青岛农业大学 | Casting stress remover |
CN106086387A (en) * | 2016-08-21 | 2016-11-09 | 周栋 | A kind of five metals sheet material Re-stress device |
CN209974840U (en) * | 2019-05-23 | 2020-01-21 | 抚顺恒通钢管有限公司 | Annealing furnace for steel pipe processing |
CN111020158A (en) * | 2019-12-01 | 2020-04-17 | 康慧英 | Solid solution heat treatment processing device for high-precision stainless steel seamless steel pipe |
CN211284468U (en) * | 2019-12-31 | 2020-08-18 | 新疆强大凯创信息科技有限公司 | Annealing equipment for nodular cast iron pipe |
-
2020
- 2020-10-28 CN CN202011167893.0A patent/CN112323003B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201952465U (en) * | 2011-01-23 | 2011-08-31 | 青岛农业大学 | Casting stress remover |
CN106086387A (en) * | 2016-08-21 | 2016-11-09 | 周栋 | A kind of five metals sheet material Re-stress device |
CN209974840U (en) * | 2019-05-23 | 2020-01-21 | 抚顺恒通钢管有限公司 | Annealing furnace for steel pipe processing |
CN111020158A (en) * | 2019-12-01 | 2020-04-17 | 康慧英 | Solid solution heat treatment processing device for high-precision stainless steel seamless steel pipe |
CN211284468U (en) * | 2019-12-31 | 2020-08-18 | 新疆强大凯创信息科技有限公司 | Annealing equipment for nodular cast iron pipe |
Also Published As
Publication number | Publication date |
---|---|
CN112323003A (en) | 2021-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112323003B (en) | Titanium alloy heat treatment stress relieving and deformation control device | |
CN112725600A (en) | Full-automatic quenching mechanism of quenching furnace | |
CN104692637B (en) | A kind of glass toughening production line quenching device | |
CN212610774U (en) | Multi-pipe traction device for coiled material annealing furnace | |
CN207415590U (en) | A kind of cam controls constant pressure peeler | |
CN112342346B (en) | High-efficient swift mould steel processing production is with annealing equipment | |
CN112439997B (en) | Metal plate strip surface treatment equipment based on laser and surface treatment method thereof | |
CN211394288U (en) | Tempering furnace for tempered glass | |
CN207811808U (en) | A kind of multi-functional aluminium alloy pipe Quenching Production Line mobile platform | |
CN116004965B (en) | Heat treatment furnace | |
CN113430338A (en) | Induction tempering device for metal heat treatment | |
CN211771443U (en) | Multi-cycle shot blasting annealing device | |
CN218903064U (en) | Black metal calendaring guide | |
CN112387787A (en) | Conveniently adjust rolling wheel of use interval | |
CN219689780U (en) | Quenching device for safe screw machining | |
CN220537865U (en) | Metal quenching equipment for metal heat treatment | |
CN217275507U (en) | Tunnel type heating furnace | |
CN216107122U (en) | Heat treatment quenching device for bearing steel ball processing | |
CN216337808U (en) | Novel quenching inductor for automobile shoe | |
CN218026251U (en) | Quenching furnace autoloading conveyer | |
CN219786091U (en) | Straightening equipment for steel pipe machining | |
CN219688916U (en) | Conveying device of steel strip annealing furnace | |
CN219616564U (en) | Straightener for steel structure column beam | |
CN117127000A (en) | Automatic change guipure formula steel ball quenching heating equipment | |
CN218495805U (en) | Ingot pulling device of electron beam melting furnace |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |