CN104701631B - A kind of method and mold for making microwave antenna reflecting surface - Google Patents
A kind of method and mold for making microwave antenna reflecting surface Download PDFInfo
- Publication number
- CN104701631B CN104701631B CN201310652017.0A CN201310652017A CN104701631B CN 104701631 B CN104701631 B CN 104701631B CN 201310652017 A CN201310652017 A CN 201310652017A CN 104701631 B CN104701631 B CN 104701631B
- Authority
- CN
- China
- Prior art keywords
- mold
- stile
- operation mold
- upper mould
- mould piece
- 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
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000007493 shaping process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of method and mold for making microwave antenna reflecting surface, the present invention is first to turn down part curved surface forming and flat side, and then stile is extended again.The forming method of secondary operation overcomes the defects of junction of curved surface and front end flange is often broken completely.In addition, production method according to the present invention, provides a kind of making mold, the mould structure is simple, easy to manufacture.During actual production, the use of the mold significantly reduces microwave antenna reflecting surface shaping difficulty, and improves the formed precision of product, and the particularly setting of blank holder effectively prevents reflecting surface edge and generates fold.After tested, the root-mean-square value δ of 0.7 meter of microwave antenna reflecting surface reaches 0.24mm.In conclusion the present invention is easy to operate, the mass production of complicated microwave antenna reflecting surface can be met, suitable for promoting.
Description
Technical field
The present invention relates to a kind of methods and mold for making microwave antenna reflecting surface, belong to industrial equipment manufacturing technology neck
Domain.
Background technology
Microwave antenna reflecting surface is the important part of antenna.The more complicated reflecting surface of structure is various, such as 0.7 meter micro-
Wave antenna reflecting surface.Its reflecting surface is paraboloid of revolution structure, and the formed precision of reflecting surface requires root-mean-square value δ≤0.3mm,
It is the important parameter for the electrical performance indexes for influencing antenna.0.7 meter of microwave antenna reflecting surface be relatively large in diameter and depth is deeper, it is external
Flange relatively depth and stile is not contour forward.At present, conventional production method and matching die are using shaping of once extending, curved surface
It is often broken with the junction of front end flange, shaping difficulty is larger, and the formed precision of product is difficult to reach requirement.
The content of the invention
Present invention solves the technical problem that it is：A kind of method and mold for making microwave antenna reflecting surface is provided, is avoided
What the junction of curved surface and front end flange was broken happens, with overcome the deficiencies in the prior art.
What the method for the present invention was realized in：It comprises the following steps：
A, part curved surface forming and the fold of flat side：First /V is used in the upper mould piece bottom outside installation of flat side operation mold
Flat side operation mold blank holder, by it is flat while the blank holder one side of operation mold with it is flat while operation mold upper mould piece fix connect
Connect, and by its opposite side using the flat spring in operation mold with it is flat while operation mold upper mould piece be connected, in flat side operation mould
One and the radian matched punch-pin of extending of microwave antenna reflecting surface intrados in the lower module of tool are installed, blank is clamped in
Flat blank holder in operation mold and it is flat while operation mold lower module between, fix the upper mould piece peace of flat side operation mold
The lower module of side operation mold；The punch-pin of extending in lower module is moved up using oil cylinder, during punch-pin of extending moves up, hair
The gradual deformation of blank；When flat upper mould piece peace in operation mold, the lower module of operation mold is held out against, the curved surface of part into
Type, while complete flat side fold operation.
B, stile is extended：The upper mould piece of stile operation mold and the gap of lower module horizontal direction are first adjusted, by part
Flat side is clamped between the blank holder of stile operation mold and the lower module of stile operation mold, fixes stile operation mold
Lower module；The upper mould piece of stile operation mold is moved down using oil cylinder, the edge of part is along the upper mould piece of stile operation mold
It is turned down with the gap of lower module horizontal direction, is finally completed stile and extends operation.
According to the above method build the present invention it is a kind of make microwave antenna reflecting surface mold be：The mold is by putting down
Side operation mold and stile operation mold are formed；The peaceful side operation of upper mould piece 1 of the flat operation mold when operation mold includes flat
The lower module 2 of mold, when flat 1 bottom outside of upper mould piece in operation mold is equipped with flat, the blank holder 3 of operation mold, flat side are made
The one side of 3 horizontal direction of blank holder of industry mold is fixedly connected with the upper mould piece 1 of flat side operation mold, the pressure of flat side operation mold
The opposite side of 3 horizontal direction of flange by the flat spring 4 in operation mold with it is flat while operation mold upper mould piece 1 be connected, flat
1 bottom inside of upper mould piece of side operation mold is equipped with the matched supporting block 5 of radian with microwave antenna reflecting surface extrados, flat
It is equipped with and the matched punch-pin 6 of extending of the radian of microwave antenna reflecting surface intrados in the lower module 2 of side operation mold；Stile operation
Mold includes the upper mould piece 1.1 of stile operation mold and the lower module 2.1 of stile operation mold, in the upper mold of stile operation mold
Blank holder 3.1 of 1.1 bottom outside of part equipped with stile operation mold, the one of 3.1 horizontal direction of blank holder of stile operation mold
Side is fixedly connected with the upper mould piece 1.1 of stile operation mold, and the opposite side of 3.1 horizontal direction of blank holder of stile operation mold leads to
The spring 4.1 for crossing stile operation mold is connected with the upper mould piece 1.1 of stile operation mold, in the upper mould piece of stile operation mold
1.1 bottoms are equipped with pressing plate 7, and water is equipped between the upper mould piece 1.1 of stile operation mold and the lower module 2.1 of stile operation mold
Square to gap.
In the mold of above-mentioned making microwave antenna reflecting surface, it is connected in the lower module 2.1 of stile operation mold recessed
Mould 8, the side height of cavity plate 8 is lower than the height of the lower module 2.1 of stile operation mold, and difference in height is greater than or equal to microwave day
The most long stile length in line reflection face.
In the mold of foregoing making microwave antenna reflecting surface, stripper 9 is equipped in cavity plate 8.
By adopting the above-described technical solution, compared with prior art, the present invention is first by part curved surface forming and flat side
Fold, then again extends stile.The forming method of secondary operation, the junction for overcoming curved surface and front end flange completely are frequent
The defects of fracture.In addition, production method according to the present invention, provides a kind of making mold, the mould structure is simple, easily makes
It makes.During actual production, the use of the mold significantly reduces microwave antenna reflecting surface shaping difficulty, and improves production
The setting of the formed precision of product, particularly blank holder effectively prevents reflecting surface edge and generates fold.After tested, 0.7 meter of microwave
The root-mean-square value δ of antenna reflective face reaches 0.24mm.In conclusion the present invention have it is easy to operate, complicated microwave can be met
The advantages that mass production of antenna reflective face, suitable for promoting and applying.
Description of the drawings
Fig. 1 is the structure diagram of the flat side operation mold of the present invention；
Fig. 2 is the structure diagram of stile operation mold of the present invention；
Fig. 3 is the structure diagram of 0.7 meter of microwave antenna reflecting surface；
The mark of attached drawing for：The upper mould piece of the flat side operation molds of 1-, the lower module of the flat side operation molds of 2-, the flat side operations of 3-
The blank holder of mold, the spring of the flat side operation molds of 4-, the upper mould piece of 1.1- stile operation molds, 2.1- stile operation molds
Lower module, the blank holder of 3.1- stile operation molds, the spring of 4.1- stile operation molds, 5- supporting blocks, 6- extend punch-pin, 7-
Pressing plate, 8- cavity plates, 9- strippers, the flat sides of 10-, 11- stiles, 12- blanks, 13- semi-finished product, 14- finished products.
Specific embodiment
The embodiment of the present invention：A kind of method for making microwave antenna reflecting surface of the present invention can be used for the prior art
In 0.7 meter of microwave antenna reflecting surface produced and implemented, during implementation, carry out in the steps below：
The first step is first to install one in the upper mould piece bottom outside for routinely making microwave antenna reflecting surface for /V
The blank holder (blank holder is annular shape, and specific size makes according to reflecting surface size) of flat side operation mold, by flat side operation mould
The one side of the blank holder horizontal direction of tool is fixedly connected with the upper mould piece of flat side operation mold, and by the opposite side of its horizontal direction
Using the flat spring in operation mold with it is flat while operation mold upper mould piece be connected, conventionally used for make microwave antenna reflecting surface
Lower module in one punch-pin of extending of installation, and punch-pin of extending is fabricated to the radian with microwave antenna reflecting surface intrados
Match somebody with somebody, by blank 12 be clamped in the flat blank holder in operation mold and it is flat while operation mold lower module between, fix flat side
The upper mould piece of operation mold and lower module, can be in punch-pin and the blank holder surface smear vegetable oil of extending in order to be more favorable for being molded
Or industrial emulsion oil.Using existing commercially available oil cylinder (such as oil cylinder of tetra- column press of Y32-250) by extending in lower module
Punch-pin moves up, during punch-pin of extending moves up, 12 gradual deformation of blank；When the upper mould piece and lower die of flat side operation mold
When part is held out against, the curved surface forming of part, while complete flat side 10 and turn down operation, obtain semi-finished product 13.Second step be adjust it is vertical
The flat side 10 of part is clamped in the flanging of stile operation mold by the gap of the upper mould piece of side operation mold and lower module horizontal direction
Between circle and the lower module of stile operation mold, the lower module of stile operation mold is fixed.Using oil cylinder by stile operation mould
The upper mould piece of tool moves down, and the edge of part is turned down along the upper mould piece of stile operation mold and the gap of lower module horizontal direction,
It is finally completed stile 11 to extend operation, obtains finished product 14.
According to the above method build the present invention it is a kind of make microwave antenna reflecting surface mold be：The mold is by putting down
Side operation mold and stile operation mold two parts are formed, and as depicted in figs. 1 and 2, flat side operation mold is included conventionally used for system
Make the upper mould piece 1 of the flat side operation mold of microwave antenna reflecting surface and lower module 2, in 1 bottom of upper mould piece of flat side operation mold
The blank holder 3 of flat side operation mold is installed in outside, by the one side of flat 3 horizontal direction of blank holder in operation mold with it is flat while operation
The upper mould piece 1 of mold is fixedly connected, by the opposite side of flat 3 horizontal direction of blank holder in operation mold by it is flat while operation mold
Spring 4 be connected with the upper mould piece 1 of flat side operation mold, flat side operation mold 1 bottom inside of upper mould piece connection and microwave
Supporting block 5 (can be welded on 1 bottom inside of upper mould piece or be fabricated to by the matched supporting block 5 of radian of antenna reflective face extrados
The structure of one), in the lower module 2 of flat side operation mold installation with the radian of microwave antenna reflecting surface intrados is matched draws
Stretch punch-pin 6.As shown in Fig. 2, stile operation mold includes the stile operation mold conventionally used for making microwave antenna reflecting surface
Upper mould piece 1.1 and lower module 2.1, in the flanging of 1.1 bottom outside of the upper mould piece installation stile operation mold of stile operation mold
Circle 3.1, by the one side of 3.1 horizontal direction of blank holder of stile operation mold and 1.1 company of fixation of upper mould piece of stile operation mold
It connects, the opposite side of 3.1 horizontal direction of blank holder of stile operation mold is made by the spring 4.1 of stile operation mold with stile
The upper mould piece 1.1 of industry mold connects, and a block pressur plate 7 is installed in 1.1 bottom of upper mould piece of stile operation mold, in stile operation mould
Gap (the specifically reserved gap of horizontal direction is reserved between the upper mould piece 1.1 of tool and the lower module 2.1 of stile operation mold
Width is equal to the thickness of microwave antenna reflecting surface stile 11).
In order to provide support and /V to reflecting surface, the reliability that inventive die uses further is improved, can stood
One block of cavity plate 8 of connection installation, the side height of cavity plate 8 is fabricated to than stile operation mould in the lower module 2.1 of side operation mold
The height of the lower module 2.1 of tool is low, and the difference in height of the two is greater than or equal to the most long stile length of microwave antenna reflecting surface.
Reflecting surface damage after being molded in order to prevent, and finished product easy to disassemble, improve work efficiency, can pacify in cavity plate 8
Load and unload flitch 9.
Embodiments of the present invention are not limited to above-described embodiment, the various changes made on the premise of invention objective is not departed from
Change the protection domain for belonging to invention.
Claims (4)
- A kind of 1. method for making microwave antenna reflecting surface, it is characterised in that：This method comprises the following steps：A, part curved surface forming and the fold of flat side：The first upper mould piece bottom outside installation in flat side operation mold is used for the pressure of /V Flange, by the one side of the flat blank holder horizontal direction in operation mold with it is flat while operation mold upper mould piece be fixedly connected, and will The opposite side of its horizontal direction using the flat spring in operation mold with it is flat while operation mold upper mould piece be connected, in flat side operation One and the radian matched punch-pin of extending of microwave antenna reflecting surface intrados in the lower module of mold are installed, blank is clamped The flat blank holder in operation mold and it is flat while operation mold lower module between, fix flat side operation mold upper mould piece and The lower module of flat side operation mold；The punch-pin of extending in the lower module of flat side operation mold is moved up using oil cylinder, it is convex extending During mould moves up, the gradual deformation of blank；The lower module top of operation mold when flat upper mould piece peace in operation mold When tight, the curved surface forming of part, while complete flat side fold operation；B, stile is extended：It first adjusts between the upper mould piece of stile operation mold and the lower module horizontal direction of stile operation mold The flat side of part is clamped between the blank holder of stile operation mold and the lower module of stile operation mold, fixes stile by gap The lower module of operation mold；The upper mould piece of stile operation mold is moved down using oil cylinder, the edge of part is along stile operation mould The gap of the upper mould piece of tool and the lower module horizontal direction of stile operation mold turns down, and is finally completed stile and extends operation.
- 2. a kind of mold for making microwave antenna reflecting surface, it is characterised in that：The mold is by flat side operation mold and stile work Industry mold is formed；Flat side operation mold includes upper mould piece（1）With lower module（2）, in the upper mould piece of flat side operation mold（1）Bottom outside is set There is blank holder（3）, the blank holder of flat side operation mold（3）The one side of horizontal direction and the upper mould piece of flat side operation mold（1）Gu Fixed connection, the blank holder of flat side operation mold（3）The spring that the opposite side of horizontal direction passes through flat side operation mold（4）With flat side The upper mould piece of operation mold（1）Connection, in the upper mould piece of flat side operation mold（1）Bottom inside is equipped with and microwave antenna reflecting surface The matched supporting block of radian of extrados（5）, in the lower module of flat side operation mold（2）It is interior be equipped with in microwave antenna reflecting surface The matched punch-pin of extending of the radian of cambered surface（6）；Stile operation mold includes upper mould piece（1.1）With lower module（2.1）, in the upper mould piece of stile operation mold（1.1）Bottom Outside is equipped with the blank holder of stile operation mold（3.1）, the blank holder of stile operation mold（3.1）The one side of horizontal direction is with standing The upper mould piece of side operation mold（1.1）It is fixedly connected, the blank holder of stile operation mold（3.1）The opposite side of horizontal direction passes through The spring of stile operation mold（4.1）With the upper mould piece of stile operation mold（1.1）Connection, in the upper mould piece of stile operation mold （1.1）Bottom is equipped with pressing plate（7）, in the upper mould piece of stile operation mold（1.1）With the lower module of stile operation mold（2.1）It Between be equipped with horizontal direction gap.
- 3. the mold according to claim 2 for making microwave antenna reflecting surface, it is characterised in that：In stile operation mold Lower module（2.1）Inside it is connected with cavity plate（8）, cavity plate（8）Side height than stile operation mold lower module（2.1）Height It is low, and difference in height is greater than or equal to the most long stile length of microwave antenna reflecting surface.
- 4. the mold according to claim 3 for making microwave antenna reflecting surface, it is characterised in that：In cavity plate（8）Inside it is equipped with Stripper（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652017.0A CN104701631B (en) | 2013-12-06 | 2013-12-06 | A kind of method and mold for making microwave antenna reflecting surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652017.0A CN104701631B (en) | 2013-12-06 | 2013-12-06 | A kind of method and mold for making microwave antenna reflecting surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104701631A CN104701631A (en) | 2015-06-10 |
| CN104701631B true CN104701631B (en) | 2018-05-29 |
Family
ID=53348524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310652017.0A Active CN104701631B (en) | 2013-12-06 | 2013-12-06 | A kind of method and mold for making microwave antenna reflecting surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104701631B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394118B (en) * | 2018-03-02 | 2019-08-02 | 商丘工学院 | A kind of mechanical material prepares mold |
| CN111976196A (en) * | 2020-08-20 | 2020-11-24 | 徐州工程学院 | Machining die and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203681A (en) * | 1987-04-24 | 1988-10-26 | Fibo Stop A S | Producing a die-cast composite artefact |
| CN1060927A (en) * | 1990-10-15 | 1992-05-06 | 胡奎生 | A kind of forming method of surfacial aerial reflecting curved surface |
| CN2162002Y (en) * | 1993-06-26 | 1994-04-13 | 机械电子工业部石家庄第五十四研究所 | Hydraulic forming paraboloidal aerial die set |
| CN1197308A (en) * | 1997-04-22 | 1998-10-28 | 詹秀英 | Disk edge shaping appts. for satellite antenna |
| JP3618306B2 (en) * | 2001-07-04 | 2005-02-09 | 株式会社日立国際電気 | Parabolic antenna mirror surface manufacturing method and press molding machine |
| US6887413B1 (en) * | 1998-04-23 | 2005-05-03 | Daimlerchrysler Ag | Process for manufacturing a covering or trim part with a directly molded on carrier |
| CN1615213A (en) * | 2002-01-11 | 2005-05-11 | 科鲁斯技术有限公司 | Method and device for producing a composite product, and composite product produced therewith |
| CN203607546U (en) * | 2013-12-06 | 2014-05-21 | 贵州振华天通设备有限公司 | Mold for fabricating reflecting surface of microwave antenna |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3897294A (en) * | 1974-05-06 | 1975-07-29 | Gen Dynamics Corp | Method of forming a parabolic antenna |
| CN1148836C (en) * | 2000-08-05 | 2004-05-05 | 李贞德 | Forming method and device for integrated antenna disc body |
| US6664939B1 (en) * | 2001-03-28 | 2003-12-16 | Mark Olinyk | Foam-filled antenna and method of manufacturing same |
| US20100141532A1 (en) * | 2008-02-25 | 2010-06-10 | Jesper Uddin | Antenna feeding arrangement |
| CN202516923U (en) * | 2011-12-15 | 2012-11-07 | 上海赛科利汽车模具技术应用有限公司 | Hot forming die with composite functions of forming and hole-flanging |
-
2013
- 2013-12-06 CN CN201310652017.0A patent/CN104701631B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203681A (en) * | 1987-04-24 | 1988-10-26 | Fibo Stop A S | Producing a die-cast composite artefact |
| CN1060927A (en) * | 1990-10-15 | 1992-05-06 | 胡奎生 | A kind of forming method of surfacial aerial reflecting curved surface |
| CN2162002Y (en) * | 1993-06-26 | 1994-04-13 | 机械电子工业部石家庄第五十四研究所 | Hydraulic forming paraboloidal aerial die set |
| CN1197308A (en) * | 1997-04-22 | 1998-10-28 | 詹秀英 | Disk edge shaping appts. for satellite antenna |
| US6887413B1 (en) * | 1998-04-23 | 2005-05-03 | Daimlerchrysler Ag | Process for manufacturing a covering or trim part with a directly molded on carrier |
| JP3618306B2 (en) * | 2001-07-04 | 2005-02-09 | 株式会社日立国際電気 | Parabolic antenna mirror surface manufacturing method and press molding machine |
| CN1615213A (en) * | 2002-01-11 | 2005-05-11 | 科鲁斯技术有限公司 | Method and device for producing a composite product, and composite product produced therewith |
| CN203607546U (en) * | 2013-12-06 | 2014-05-21 | 贵州振华天通设备有限公司 | Mold for fabricating reflecting surface of microwave antenna |
Non-Patent Citations (1)
| Title |
|---|
| 一种分瓣式天线反射面的成形新方法;龚跃夫;《锻压技术》;19940825;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104701631A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203610515U (en) | Flanging pattern punching one-step-forming die for basin stand | |
| CN204035335U (en) | A kind of automobile side coaming stamping die | |
| CN103639651B (en) | Accurate and efficient antenna skin cutting method | |
| CN104701631B (en) | A kind of method and mold for making microwave antenna reflecting surface | |
| CN203030720U (en) | Small bending component mould | |
| CN203607546U (en) | Mold for fabricating reflecting surface of microwave antenna | |
| CN105107954A (en) | End partial subsidence forming mold for aluminum alloy L-shaped angle section part and applications | |
| CN103611795B (en) | A kind of square washer progressive die production technology | |
| CN102544711A (en) | Antenna oscillator and production method thereof as well as communication equipment | |
| CN106623713A (en) | Making method for aluminum-alloy T-type section die-forging parts | |
| CN202910172U (en) | Mold structure special for bending machine used for processing outer barrel involution interface | |
| CN101902104B (en) | Verification processing method for frame-shaped coil die | |
| CN201979002U (en) | Moulding die used for folding radiating fins | |
| CN206500604U (en) | A kind of modified bend pipe produces die casting | |
| CN206305234U (en) | Anti- resilience one-shot device | |
| CN205362473U (en) | A device for auto parts are plastic in advance | |
| CN203578574U (en) | Dedicated bending machine mold for special R-type panel | |
| CN103521577A (en) | Processing method of door inner plate flange edge, die and door inner plate | |
| CN205436977U (en) | Blade forges mould convenient to detect forging offsetting volume | |
| CN204054297U (en) | A kind of gypsum machine line mould | |
| CN204724700U (en) | Abrasion-proof cover plate pressing mold | |
| CN203076456U (en) | Quick forming device for door edge of anti-theft door | |
| CN104028626B (en) | A kind of frame production technology | |
| CN204844640U (en) | Major diameter cluster parachute silicon rubber moulding mould | |
| CN105710315B (en) | Casting method of pressure impeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Method and Mold for Making Microwave Antenna Reflective Surface Effective date of registration: 20231102 Granted publication date: 20180529 Pledgee: China Construction Bank Corporation Guiyang Chengbei sub branch Pledgor: GUIZHOU ZHENHUA COMMUNICATION EQUIPMENT CO.,LTD. Registration number: Y2023520000062 |