CN110014208A - A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method - Google Patents
A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method Download PDFInfo
- Publication number
- CN110014208A CN110014208A CN201810015777.3A CN201810015777A CN110014208A CN 110014208 A CN110014208 A CN 110014208A CN 201810015777 A CN201810015777 A CN 201810015777A CN 110014208 A CN110014208 A CN 110014208A
- Authority
- CN
- China
- Prior art keywords
- copper
- tungsten electrode
- pipette tips
- welding
- main body
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 95
- 239000010949 copper Substances 0.000 claims abstract description 95
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 92
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 39
- 239000010937 tungsten Substances 0.000 claims abstract description 39
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000919 ceramic Substances 0.000 claims abstract description 36
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000004927 fusion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Resistance Welding (AREA)
Abstract
A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method, belong to machine-building welding field, have filled up prior art blank.Its structure include: copper tungsten electrode folder (1), tungsten electrode (2), copper mesh (3), copper shunt cylinder (4), ceramic mouth (5), copper tungsten electrode hold out against washer (6), copper pipette tips main body (7)；(8) etc. ceramics protection locating piece；Its assembling sequence are as follows: (2) tungsten electrode is inserted into copper tungsten electrode folder (1) in and adjust extension elongation → by tungsten electrode fold up copper shunt cylinder (4) in → (4) copper shunt cylinder is tightened to copper pipette tips main body (7) upper → clamping tungsten electrode (2) → (5) cotton up to mouth is screwed on copper dividing bushing 4 → (8) ceramics tongs block being inserted in copper pipette tips main body (7) → tightens hex screw and fixes.Application method: by pipette tips be installed to head (15) on, welding gun head is extend into pore, positioning welding position；Adjust the inner hole overlap welding that tube sheet and heat exchanger tube can be realized after welding parameter.The inner hole overlap welding of the exchanger tubes and tubesheets of pore suitable for diameter 19-70mm.
Description
Technical field
The invention belongs to machine-building welding fields, are related to the inner hole overlap joint welding of tube sheet and heat exchanger tube.
Background technique
The welding structure of exchanger tubes and tubesheets inner hole lap joint form has antivibration dynamic fatigue strength height, bearing capacity strong, anti-
The advantages that corrosive power is good, quality of weld joint is high, compares inner hole butt welding, and the tubesheet holes of this kind of form is easier to process while more
Material is saved, therefore the heat exchanger of this kind of type of attachment is gradually applied.The exchanger tubes and tubesheets weldering of this kind of type of attachment
Welding gun need to be protruded into welding inside pore when connecing, while also requiring welding gun head alignment welding position and having centainly with welding portion
Angle just can guarantee weld seam complete penetraction and fusion in welding, and pore diameter generally only has 19-70mm, and pipette tips are protruded into pore and are being seen completely not
Realize that complete penetraction and fusion in welding is difficult under to pore inner case, the requirement to welding gun head is very high, is there is no at present dedicated for tube sheet
The lap-welded pipette tips of inner hole.
Summary of the invention
Welding gun head when object of the present invention is to design, manufacture tube sheet and heat exchange pipe orifice overlap joint welding.
Technical solution is:
Exchanger tubes and tubesheets inner hole overlap welding welding gun head, structure include: that copper tungsten electrode presss from both sides 1, tungsten electrode 2, copper mesh 3, copper
Shunt cylinder 4, ceramic mouth 5, copper tungsten electrode hold out against washer 6, copper pipette tips main body 7；Ceramics protection locating piece 8, hex screw 9；Institute
The copper pipette tips main body 7 stated is the carrier of the other components of entire welding gun head, opens stomata A10 among it；The copper
1 top and bottom of tungsten electrode folder are respectively provided with "-" type seam, both ends be it is arc-shaped, withstand on copper tungsten electrode respectively and hold out against washer 6
With the groove position of copper shunt cylinder 4, tungsten electrode 2 is injected in tungsten electrode folder 1；Copper tungsten electrode folder 1 and connection copper pipette tips main body 7 pass through
Copper shunt cylinder 4 is fixed together；Copper pipette tips main body 7 has the tubular slot of installation copper shunt cylinder 4, and inclined-plane is 45 °；Copper
Silk screen 3 is fixed on copper shunt cylinder 4 and puts on；There are the keyway of a 2mm, keyway upper end in the intermediate position of 4 screw thread of copper shunt cylinder
Portion is evenly distributed with the venthole B11 five of φ 1.0mm, lower part is evenly distributed with venthole C12 tetra- of φ 1.5mm；Ceramic mouth 5 is screwed in copper point
In flow cartridge 4；There is the graduated scale of 38mm in the most long face of ceramics tongs block 8, ceramics tongs block 8 is fixed on hex screw 9
In copper pipette tips main body 7.
The assembling sequence of welding gun head are as follows: by copper tungsten electrode hold out against washer 6 be put into the fixed position of copper pipette tips main body 7 →
Tungsten electrode 2 is inserted into copper tungsten electrode folder 1 and adjusts extension elongation → by the tungsten electrode installed and tungsten electrode and is folded up into copper shunt cylinder 4
In → copper shunt cylinder 4 is tightened in copper pipette tips main body 7, leading in pipette tips main body 7 can be directed at by making its keyway position just
Stomata A10 → clamping tungsten electrode 2 guarantees that it is placed to the fixation of copper dividing bushing 4 horizontal by 45° angle → by copper mesh 3
Tighten two in position → cotton up to mouth 5 is screwed on copper dividing bushing 4 → ceramics tongs block 8 is inserted in copper pipette tips main body 7 →
Ceramics tongs block 8 is fixed in copper pipette tips main body 7 by fastening hex screw.
The application method of exchanger tubes and tubesheets inner hole overlap welding welding gun head: adjusting the length of tungsten electrode stretching, then will
Assembled pipette tips are installed on head 15, and welding gun head is extend into pore；Pipette tips are with workpiece at a distance from short transverse
It is positioned by the diameter of ceramics tongs block 8；Pipette tips and workpiece distance in the horizontal direction pass through the graduated scale on ceramics tongs block 8
It realizes, welding position can be found accurately by positioning；Adjust the inner hole that tube sheet 14 Yu heat exchanger tube 13 can be realized after welding parameter
Overlap welding.
The present invention has the following advantages that
1, structure of the invention it is compact, it can be achieved that exchanger tubes and tubesheets inner hole overlap welding.
2, gas shield of the present invention is uniform, and angle of the tungsten electrode at a distance from workpiece between controllable, tungsten electrode and workpiece may be implemented,
Inner hole overlap welding complete penetraction and fusion in welding may be implemented, welding quality can be guaranteed.
3, the present invention is easy to assemble, and maintenance is simple, and replacement tungsten electrode is convenient.
4, it positions simple and easy when present invention welding, working efficiency can be improved.
5, the present invention is simple to manufacture, and manufacturing cost is low.
Detailed description of the invention
Fig. 1 is general assembly schematic diagram；
Fig. 2 is working principle diagram;
Fig. 3 is 7 schematic diagram of copper pipette tips main body；
Fig. 4 is 4 schematic diagram of copper shunt cylinder；
Fig. 5 is 8 schematic diagram of ceramics tongs block;
Fig. 6 is that 3 copper tungsten electrode of copper mesh presss from both sides 1 schematic diagram;
Fig. 7 is 5 schematic diagram of cotton up to mouth;
Fig. 8 is that copper tungsten electrode holds out against 6 schematic diagram of washer;
Fig. 9 is 3 schematic diagram of copper mesh;
Figure 10 is hex screw schematic diagram;
Figure 11 is tungsten electrode schematic diagram
Wherein: 1-copper tungsten electrode folder, 2-tungsten electrodes, 3-copper mesh, 4-copper shunt cylinders, 5-ceramic mouths, 6-copper tungsten electrodes
Hold out against washer, 7-copper pipette tips main bodys, 8-ceramics tongs blocks, 9-hex screws, 10-venthole A, 11-venthole B,
12-venthole C, 13-heat exchanger tubes, 14-tube sheets, 15-heads.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
As shown in Figure 1, exchanger tubes and tubesheets inner hole overlap welding welding gun head, structure includes: that copper tungsten electrode presss from both sides 1, tungsten electrode
2, copper mesh 3, copper shunt cylinder 4, ceramic mouth 5, copper tungsten electrode hold out against washer 6, copper pipette tips main body 7；Ceramics protection locating piece
8, hex screw 9.Above-mentioned copper pipette tips main body 7 is the carrier of the other components of entire welding gun head, by other components by suitable
Sequence is assembled into copper pipette tips main body 7, and the function of welding gun head, copper pipette tips master are realized by the mutual cooperation of these components
The cylinder slot inclined-plane that body 7 is connect with copper shunt cylinder 4 is 45 °.Wherein tungsten electrode 2 rises in the welding process occurs arc-melting and penetrates
The effect of workpiece；1 top and bottom of copper tungsten electrode folder are respectively provided with "-" type seam, both ends be it is arc-shaped, withstand on copper respectively
Tungsten electrode processed holds out against the groove position of washer 6 and copper shunt cylinder 4, by tightening copper shunt cylinder 4, that is, it is long to can reach adjustment tungsten electrode
The effect of short and fixed tungsten electrode；There is the keyway of a 2mm at the intermediate position of 4 screw thread of copper shunt cylinder, and keyway upper end is evenly distributed with φ
The venthole B11 five of 1.0mm, lower part are evenly distributed with venthole C12 tetra- of φ 1.5mm；After tightening copper shunt cylinder 4, keyway portion
Position can just be directed at the venthole A10 in pipette tips main body 7, and protective gas enters copper shunt cylinder 4 by venthole A10, then leads to
The venthole for crossing copper shunt cylinder 4 once shunts the protection gas being passed through, while copper shunt cylinder 4 also acts as positioning copper
The effect of tungsten electrode folder 1 and connection copper pipette tips main body 7 and copper tungsten electrode folder 1；Copper mesh 3 carries out second diffluence to protective gas,
Protective gas is evenly distributed on around tungsten electrode 2, to weld seam gold in the stabilization and welding process to guarantee welding process
The good protection of category；Ceramic mouth 5, which is screwed on copper shunt cylinder 4, plays heat-insulated and insulating effect, and copper in welding process is avoided to shunt
Cylinder 4 overheats, while preventing copper shunt cylinder 4 from contacting with workpiece and generating electrical arc erosion copper shunt cylinder 4；Ceramics tongs block 8 rises
Protect copper pipette tips main body 7 and positioning action；On the one hand prevent copper pipette tips main body 7 from contacting generation with workpiece in the welding process
On the other hand it is fixed can to guarantee that pipette tips play at a distance from height and horizontal direction with workpiece for electrical arc erosion copper pipette tips main body 7
Position effect, due to being blind weldering, pipette tips and in the horizontal direction position of workpiece also need locating piece to complete；Pipette tips and workpiece are in height
The distance in direction is positioned by the diameter of ceramics tongs block 8；Pipette tips and workpiece distance in the horizontal direction are to pass through ceramics
What the graduated scale on locating piece 8 was realized, there is the graduated scale of 38mm in ceramics tongs block most long face, welding can be found accurately by positioning
Position；Tungsten electrode is directed at weld seam, while can also prevent from influencing weldering because tungsten electrode and workpiece distance height are uneven in welding process
The continuity and welding quality of termination process；Hex screw 9 plays fixed ceramics tongs block 8.
As shown in Figure 1, the assembling sequence of exchanger tubes and tubesheets inner hole overlap welding welding gun head are as follows: by copper tungsten electrode fixed supporter
Circle 6 be put into the fixed position of copper pipette tips main body 7 → tungsten electrode 2 be inserted into copper tungsten electrode folder 1 and adjust extension elongation → general
The tungsten electrode and tungsten electrode installed folds up in copper shunt cylinder 4 → copper shunt cylinder 4 is tightened in copper pipette tips main body 7, makes it
Keyway position can just be directed at venthole A10 → clamping tungsten electrode 2 in pipette tips main body 7, guarantee it horizontal by 45° angle → general
Copper mesh 3, which is placed to the fixation position of copper dividing bushing 4 → cotton up to mouth 5 is screwed on copper dividing bushing 4 →, determines ceramics
Position block 8 is inserted in copper pipette tips main body 7 → tighten two fastening hex screws and ceramics tongs block 8 is fixed on copper pipette tips main body 7
On.
As shown in Fig. 2, the application method of exchanger tubes and tubesheets inner hole overlap welding welding gun head: assembling welding gun head, adjust
Pipette tips, are then installed on head 15, welding gun head are extend into pore by the length that whole good tungsten electrode stretches out；Pipette tips and workpiece
It is positioned in the distance of short transverse by the diameter of ceramics tongs block 8；Pipette tips and workpiece distance in the horizontal direction pass through ceramics
Graduated scale on locating piece 8 is realized, can find welding position accurately by positioning；Tube sheet 14 can be realized after adjusting welding parameter
With the inner hole overlap welding of heat exchanger tube 13.
For diameter 19-70mm pore, the inner hole overlap welding of exchanger tubes and tubesheets is can be achieved in the present invention, and welding quality is protected
Card, work efficiency is high.
Claims (3)
1. exchanger tubes and tubesheets inner hole overlap welding welding gun head, it is characterized in that: its structure include copper tungsten electrode folder (1), tungsten electrode (2),
Copper mesh (3), copper shunt cylinder (4), ceramic mouth (5), copper tungsten electrode hold out against washer (6), copper pipette tips main body (7)；Ceramics protection positioning
Block (8), hex screw (9)；(7) the copper pipette tips main body is the carrier of the other components of entire welding gun head, open-minded among it
Stomata A is (10)；(1) top and bottom are respectively provided with a "-" type seam to the described copper tungsten electrode folder, both ends be it is arc-shaped, push up respectively
Groove position of the washer (6) with copper shunt cylinder (4) is held out against in copper tungsten electrode, (2) tungsten electrode injects tungsten electrode and presss from both sides in (1)；Copper tungsten electrode folder
(1) (7) pass through copper shunt cylinder with connection copper pipette tips main body to be (4) fixed together；(7) copper pipette tips main body has installation copper
The tubular slot of shunt cylinder (4), inclined-plane are 45 °；(3) copper mesh is fixed on copper shunt cylinder and (4) puts on；Copper shunt cylinder (4) screw thread
There is the keyway of a 2mm at intermediate position, and keyway upper end is evenly distributed with the venthole B (11) five of φ 1.0mm, lower part is evenly distributed with φ 1.5mm
Venthole C (12) four；Ceramic mouth be (5) screwed in copper shunt cylinder (4) on；(8) the ceramics tongs block has 38mm's in most long face
Graduated scale, ceramics tongs block be (8) (9) fixed on hex screw copper pipette tips main body (7) on.
2. the assembling sequence of exchanger tubes and tubesheets inner hole overlap welding welding gun head described in claim 1, it is characterized in that: by copper
Tungsten electrode hold out against washer be (6) put into copper pipette tips main body (7) fix position in → (2) tungsten electrode is inserted into copper tungsten electrode folder (1) in and adjust
Good extension elongation → by tungsten electrode folder be (1) put into copper shunt cylinder (4) in → (4) (7) copper shunt cylinder is tightened to copper pipette tips main body
On, make its keyway position alignment pipette tips main body (7) on venthole A (10) → clamp tungsten electrode (2), guarantee it horizontal by 45° angle
→ (3) copper mesh is placed to copper dividing bushing fixation position (4) → by cotton up to mouth be (5) screwed into copper dividing bushing it is (4) upper →
(8) ceramics tongs block is inserted in copper pipette tips main body (7) → tighten two fastening hex screws (8) ceramics tongs block be fixed on copper
Pipette tips main body processed (7) on.
3. the application method of exchanger tubes and tubesheets inner hole overlap welding welding gun head described in claim 1, it is characterized in that: adjusting
Tungsten electrode stretch out length, then by assembled pipette tips be installed to head (15) on, welding gun head is extend into pore；Pipette tips with
Workpiece is positioned in the distance of short transverse by the diameter of ceramics tongs block (8)；Pipette tips pass through with workpiece distance in the horizontal direction
Ceramics tongs block (8) on graduated scale realize, by positioning can find welding position accurately；It can be realized after adjusting welding parameter
The tube sheet (14) inner hole overlap welding with heat exchanger tube (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015777.3A CN110014208A (en) | 2018-01-08 | 2018-01-08 | A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015777.3A CN110014208A (en) | 2018-01-08 | 2018-01-08 | A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110014208A true CN110014208A (en) | 2019-07-16 |
Family
ID=67187526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810015777.3A Pending CN110014208A (en) | 2018-01-08 | 2018-01-08 | A kind of exchanger tubes and tubesheets inner hole overlap welding welding gun head and its assembling application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110014208A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10263824A (en) * | 1997-03-25 | 1998-10-06 | Uerumetsuku Syst:Kk | Electrode installing structure in tig welding machine |
| CN2353479Y (en) * | 1998-10-06 | 1999-12-15 | 中国石化齐鲁石油化工公司 | Automatic angle-welding welding-gun for inner hole of pipe and pipe plate,and gun head thereof |
| EP2008750A1 (en) * | 2007-06-28 | 2008-12-31 | EWM Hightec Welding GmbH | TIG welding torch |
| CN202607057U (en) * | 2012-05-14 | 2012-12-19 | 兰州长征机械有限公司 | Deep-hole welder welding gun for pipes of air cooler |
| CN202667894U (en) * | 2012-06-19 | 2013-01-16 | 中国石油化工股份有限公司 | Structure of argon arc welding gun |
| CN206029054U (en) * | 2016-06-27 | 2017-03-22 | 平安煤炭开采工程技术研究院有限责任公司 | Welding set |
| CN206169521U (en) * | 2016-10-20 | 2017-05-17 | 青岛兰石重型机械设备有限公司 | Half automatic surfacing welding device of nozzle inner wall |
| CN207746527U (en) * | 2018-01-08 | 2018-08-21 | 兰州兰石重型装备股份有限公司 | A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head |
-
2018
- 2018-01-08 CN CN201810015777.3A patent/CN110014208A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10263824A (en) * | 1997-03-25 | 1998-10-06 | Uerumetsuku Syst:Kk | Electrode installing structure in tig welding machine |
| CN2353479Y (en) * | 1998-10-06 | 1999-12-15 | 中国石化齐鲁石油化工公司 | Automatic angle-welding welding-gun for inner hole of pipe and pipe plate,and gun head thereof |
| EP2008750A1 (en) * | 2007-06-28 | 2008-12-31 | EWM Hightec Welding GmbH | TIG welding torch |
| CN202607057U (en) * | 2012-05-14 | 2012-12-19 | 兰州长征机械有限公司 | Deep-hole welder welding gun for pipes of air cooler |
| CN202667894U (en) * | 2012-06-19 | 2013-01-16 | 中国石油化工股份有限公司 | Structure of argon arc welding gun |
| CN206029054U (en) * | 2016-06-27 | 2017-03-22 | 平安煤炭开采工程技术研究院有限责任公司 | Welding set |
| CN206169521U (en) * | 2016-10-20 | 2017-05-17 | 青岛兰石重型机械设备有限公司 | Half automatic surfacing welding device of nozzle inner wall |
| CN207746527U (en) * | 2018-01-08 | 2018-08-21 | 兰州兰石重型装备股份有限公司 | A kind of exchanger tubes and tubesheets endoporus overlap welding welding gun head |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190716 |
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| RJ01 | Rejection of invention patent application after publication |