CN114248422A - Bending and shaping tool and method for RT/Duriod plate - Google Patents
Bending and shaping tool and method for RT/Duriod plate Download PDFInfo
- Publication number
- CN114248422A CN114248422A CN202111468494.2A CN202111468494A CN114248422A CN 114248422 A CN114248422 A CN 114248422A CN 202111468494 A CN202111468494 A CN 202111468494A CN 114248422 A CN114248422 A CN 114248422A
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- Prior art keywords
- duriod
- plate
- pin
- bend
- concave cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a bending and shaping tool and a method for an RT/Duriod plate, wherein the bending and shaping tool comprises a lower die, an upper die, a pin column and a pressing plate, wherein the upper surface of the lower die is provided with a square concave cavity, and the size of the square concave cavity is consistent with the appearance of the RT/Duriod plate to be bent so as to be positioned; the lower side of the square concave cavity is provided with a U-shaped concave cavity for restraining the RT/Duriod plate, and the square concave cavity and the U-shaped concave cavity are in smooth round corner transition; the lower surface of the upper die is provided with a U-shaped boss which is matched with the U-shaped concave cavity to shape the RT/Duriod board. Pin holes are formed in the two ends of the lower die, the upper die and the pressing plate, and the pin columns are tightly matched with the pin holes of the lower die and are loaded through static pressure; the pin column is loosely matched with the pin hole of the upper die; the pin column is loosely matched with the pin hole of the pressure plate. The invention can realize the nondestructive bending of the RT/Duriod material, and the vacuum furnace is adopted in the heat setting process to avoid the oxidation of the base material at high temperature, thereby not influencing the strength and the dielectric constant of the material.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a bending and shaping tool and a bending and shaping method for an RT/Duriod board.
Background
The RT/Duriod material is prepared by mixing inorganic filler and randomly distributed electronic grade glass yarns in polytetrafluoroethylene, has the characteristics of low dielectric constant, low water absorption, stable dielectric constant along with frequency change and the like, and is widely applied to airborne and foundation radar systems, millimeter wave application, space satellite transceivers and the like in the field of electronic equipment. As shown in figures 1 and 2, the RT/Duriod material is of a sandwich structure, polytetrafluoroethylene 5-2 is arranged in the middle, copper foils 5-1 are covered on two sides, and the copper foils 5-1 can be processed into required patterns according to the requirements of electrical performance and magnetic performance.
Currently, RT/Duriod materials have no effective bend-setting means. RT/Duriod materials with a thickness of 0.3mm or less can be bent by a mold at normal temperature, but cannot be shaped, and are generally fixed by a mechanical method. The RT/Duriod material with the thickness of more than 0.3mm can be brittle due to the brittleness of polytetrafluoroethylene, and can be brittle at normal temperature when being bent, and is usually directly formed by opening a mold by a manufacturer, but the direct forming cost of the mold is higher, and the RT/Duriod material can not be processed in the later period.
Therefore, the RT/Duriod material with the thickness of more than 0.3mm has no effective bending and shaping means, and the design and manufacture of the product need to depend on manufacturers, so that the limitation is large.
Disclosure of Invention
In order to solve the above problems, the present invention provides a bending and shaping tool and method for RT/Duriod board, which can bend RT/Duriod material without damage and heat-shape it for making curved surface polarizer and other electrical devices. When the RT/Duriod material is bent, the damage of the copper foil can be avoided; the heat setting adopts a vacuum furnace to release the internal stress of the polytetrafluoroethylene material, thereby avoiding the oxidation of the polytetrafluoroethylene and the copper foil at high temperature without influencing the material strength and the dielectric constant.
The technical scheme adopted by the invention is as follows:
a bend-setting tool for RT/Duriod boards comprising:
the upper surface of the lower die is provided with a square concave cavity, the size of the square concave cavity is consistent with the shape of the RT/Duriod plate to be bent so as to position the square concave cavity, and the bending position is ensured to be accurate; the lower side of the square concave cavity is provided with a U-shaped concave cavity which is used for restraining the RT/Duriod plate and meeting the bending requirement; smooth round corner transition is adopted between the square concave cavity and the U-shaped concave cavity, so that an RT/Duriod plate is prevented from being scratched by edges during bending; pin holes are formed in the two ends of the lower die;
the lower surface of the upper die is provided with a U-shaped boss which is matched with the U-shaped concave cavity to shape the RT/Duriod plate; pin holes are formed in two ends of the upper die;
the pin column is tightly matched with the pin hole of the lower die and is loaded by static pressure; the pin column is loosely matched with the pin hole of the upper die;
and pin holes are formed in the two ends of the pressing plate, and the pin holes of the pressing plate are in loose fit with the pin columns.
Furthermore, four corners of the square concave cavity are provided with avoiding fillets, and two sides of the U-shaped concave cavity, which are close to the side wall, are provided with avoiding grooves for processing a plurality of milling cutters.
Furthermore, the outer shapes of the pressure plate, the upper die and the lower die are different in size and are used for grabbing and separating the RT/Duriod plate after the RT/Duriod plate is formed.
Further, the orifice of the pin hole is provided with a chamfer, and two ends of the pin column are provided with chamfers.
Further, the U-shaped bosses constrain the RT/Duriod board inner surface and the U-shaped cavities constrain the RT/Duriod board outer surface.
A bend-setting method for RT/Duriod boards, comprising:
and step 3, cleaning: the stains on the RT/Duriod plates were cleaned with dilute hydrochloric acid, then with deionized water, and wiped clean with absolute ethanol.
Further, the mounting pins are installed in the pin holes of the lower die by static pressure, and the RT/Duriod plate is placed in the square concave cavity of the lower die.
Further, the upper die is placed by aligning pin holes of the upper die with the pin columns and slightly putting down the pin holes to contact the RT/Duriod board, and meanwhile, the U-shaped boss of the upper die enters the U-shaped concave cavity of the lower die.
Further, the pressing plate is placed by aligning the pin holes of the pressing plate with the pins and slightly putting down to apply pressure to the RT/Duriod plate.
Further, the heating is to put the bending and shaping tool and the RT/Duriod plate into an oven together, heat the bending and shaping tool to 120 ℃, and keep the temperature for 20 minutes; the compression pre-form is formed by removing the bend-setting tool from the oven and uniformly pressing the press platen with force to form the RT/Duriod plate.
The invention has the beneficial effects that:
in order to realize the bending and shaping of RT/Duriod materials in the field of electronic equipment and meet the requirements of secondary processing, the invention provides a bending and shaping tool and a method, can realize the nondestructive bending of the RT/Duriod materials, adopts a vacuum furnace to avoid the oxidation of base materials at high temperature in the heat-setting process, and does not influence the material strength and the dielectric constant.
Drawings
FIG. 1 is a schematic perspective view of an RT/Duriod board before bending, wherein (a) is a front side and (b) is a back side;
FIG. 2 is a schematic perspective view of the RT/Duriod board after being bent and shaped;
FIG. 3 is a schematic perspective view of a bend setting tool of the present invention;
FIG. 4 is a schematic perspective view of a lower mold half-sectioned, a bend-shaping tool and an RT/Duriod plate before bend forming;
FIG. 5 is a schematic perspective view of the RT/Duriod plate after bending and forming, with the lower mold half-sectioned, and the bending and shaping tool;
FIG. 6 is a schematic perspective view of the pin of FIG. 3;
FIG. 7 is a schematic perspective view of the platen of FIG. 3;
FIG. 8 is a schematic perspective view of the upper die of FIG. 3;
FIG. 9 is a schematic perspective view of the lower mold of FIG. 3;
FIG. 10 is a schematic perspective view of a half section of the lower mold of FIG. 3;
shown in the figure: 1 is a pin, 2 is a press plate, 3 is an upper die, 4 is a lower die, 5 is an RT/Duriod plate, 5-1 is a copper foil, and 5-2 is polytetrafluoroethylene.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 3, the present embodiment provides a bend-setting tool for RT/Duriod plates, which includes a lower die 4, an upper die 3, a pin 1, and a pressing plate 2. As shown in fig. 4 and 9, the upper surface of the lower mold 4 is provided with a square concave cavity with a size consistent with the shape of the RT/Duriod plate 5 to be bent for positioning, ensuring accurate bending position. As shown in fig. 4, 5 and 10, the underside of the square cavity is provided with a U-shaped cavity for restraining the RT/Duriod board 5 to meet the bending requirements. As shown in FIG. 10, smooth rounded transitions are used between the square and U-shaped cavities to avoid edges scratching RT/Duriod board 5 during bending. Correspondingly, as shown in fig. 4, 5 and 8, the lower surface of the upper die 3 is provided with a U-shaped boss, which cooperates with the U-shaped recess to shape the RT/Duriod plate 5.
As shown in fig. 7 to 9, pin holes are formed in the two ends of the upper die 3, the lower die 4 and the pressure plate 2, the pin 1 is tightly fitted with the pin hole of the lower die 4, and the pin 1 is loosely fitted with the pin holes of the upper die 3 and the pressure plate 2 by static pressure.
Preferably, as shown in fig. 9, four corners of the square concave cavity are provided with avoidance fillets; as shown in fig. 10, the U-shaped cavity has avoiding grooves on both sides near the side wall for facilitating the machining of the milling cutter.
Preferably, the outer shapes of the press plate 2, the upper die 3 and the lower die 4 are different in size for grasping and separating after the RT/Duriod plate 5 is formed. More preferably, as shown in fig. 3 to 5, the pressing plate 2 is larger in outer shape than the upper mold 3, and the upper mold 3 is larger in outer shape than the lower mold 4, so that the pressing plate can be easily grasped and separated after forming.
Preferably, the pin hole orifices of the upper die 3, the lower die 4 and the platen 2 are provided with chamfers. As shown in fig. 6, both ends of the pin 1 are provided with chamfers.
Preferably, the U-shaped bosses constrain the inside surface of the RT/Duriod board 5 and the U-shaped cavities constrain the outside surface of the RT/Duriod board 5.
Example 2
This example is based on example 1:
the embodiment provides a bending and shaping method for an RT/Duriod board, which comprises the following steps:
And step 3, cleaning: the RT/Duriod plate 5 was cleaned of stains with dilute hydrochloric acid, then with deionized water and wiped clean with absolute ethanol.
Preferably, in step 1:
the pin column 1 is installed by using static pressure to install the pin column 1 into a pin hole of the lower die 4;
placing the RT/Duriod plate 5 is placing the RT/Duriod plate 5 into the square cavity of the lower die 4;
placing the upper die 3 is to align the pin hole of the upper die 3 with the pin column 1, put down lightly to contact the RT/Duriod board 5, and simultaneously the U-shaped boss of the upper die 3 enters the U-shaped concave cavity of the lower die 4, so as to avoid the follow-up upper die 3 from being clamped and not falling;
placing the pressure plate 2, namely aligning the pin holes of the pressure plate 2 with the pin posts 1, slightly putting down, and applying pressure to the RT/Duriod plate 5;
the heating is to put the bending and shaping tool and the RT/Duriod plate 5 into an oven, heat up to 120 ℃, and keep the temperature for 20 minutes; in the temperature rising process, the RT/Duriod plate 5 is heated to be soft and generates certain deformation under the pressure of the pressing plate 2;
the compression preforming is to take the bend setting tool out of the oven and press the press plate 2 evenly hard to shape the RT/Duriod plate 5.
It should be noted that unless otherwise expressly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either a wired or wireless connection.
Claims (10)
1. A bend-setting tool for RT/Duriod boards, comprising:
the upper surface of the lower die is provided with a square concave cavity, and the size of the square concave cavity is consistent with the shape of the RT/Duriod plate to be bent so as to be positioned; the lower side of the square concave cavity is provided with a U-shaped concave cavity for restraining an RT/Duriod plate, and the square concave cavity and the U-shaped concave cavity are in smooth round corner transition; pin holes are formed in the two ends of the lower die;
the lower surface of the upper die is provided with a U-shaped boss which is matched with the U-shaped concave cavity to shape the RT/Duriod plate; pin holes are formed in two ends of the upper die;
the pin column is tightly matched with the pin hole of the lower die and is loaded by static pressure; the pin column is loosely matched with the pin hole of the upper die;
and pin holes are formed in the two ends of the pressing plate, and the pin holes of the pressing plate are in loose fit with the pin columns.
2. The bend shaping tool for RT/Duriod plates according to claim 1, wherein the four corners of the square cavity are provided with relief fillets, and the two sides of the U-shaped cavity near the side walls are provided with relief grooves for the machining of several milling tools.
3. The bend forming tool for RT/Duriod boards according to claim 1, wherein the press plate, the upper die and the lower die have different outer shapes and sizes for grabbing and separating RT/Duriod boards after forming.
4. The bend shaping tool for RT/Duriod plates of claim 1, wherein the bore of the pin hole is provided with a chamfer and the pin post is provided with a chamfer at both ends.
5. The bend shaping tool for RT/durood panels of claim 1 wherein the U-shaped boss constrains the RT/durood panel inner surface and the U-shaped cavity constrains the RT/durood panel outer surface.
6. A bend-setting method for RT/Duriod boards, based on the bend-setting tool of any of claims 1-5, characterized in that the bend-setting method comprises:
step 1, preforming: sequentially installing the pin columns, placing an RT/Duriod plate, placing the upper die, placing the pressing plate, heating and extruding for preforming;
step 2, forming: putting the bending and shaping tool and an RT/Duriod plate into a vacuum furnace; after vacuumizing, heating to 280 ℃, and preserving heat for 30 minutes to enable the RT/Duriod plate to finish bending and shaping; cooling the RT/Duriod plate along with the vacuum furnace in a vacuum state; after the bending and shaping tool and the RT/Duriod plate are taken out of the vacuum furnace, the bending and shaping tool is disassembled, and the RT/Duriod plate is taken out;
and step 3, cleaning: the stains on the RT/Duriod plates were cleaned with dilute hydrochloric acid, then with deionized water, and wiped clean with absolute ethanol.
7. The bend-setting method for RT/Duriod boards according to claim 6, wherein the installing pins are the pins are installed into the pin holes of the lower die with static pressure, and the placing RT/Duriod boards is the placing RT/Duriod boards into the square cavities of the lower die.
8. The bend-setting method for RT/Duriod boards according to claim 6, wherein the placing of the upper die is aligning the pin holes of the upper die with the pins, gently lowering, contacting the RT/Duriod board while the U-shaped bosses of the upper die enter the U-shaped cavities of the lower die.
9. The bend-setting method for RT/Duriod boards according to claim 6, wherein the placing the press plate is by aligning the pin holes of the press plate with the pins, gently lowering, applying pressure to the RT/Duriod board.
10. The method of claim 6, wherein the heating step comprises placing the tool and the RT/Duriod board in an oven, heating to 120 ℃ and holding for 20 minutes; the compression pre-form is formed by removing the bend-setting tool from the oven and uniformly pressing the press platen with force to form the RT/Duriod plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111468494.2A CN114248422B (en) | 2021-12-03 | 2021-12-03 | Bending and shaping tool and method for RT/Duriod board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111468494.2A CN114248422B (en) | 2021-12-03 | 2021-12-03 | Bending and shaping tool and method for RT/Duriod board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114248422A true CN114248422A (en) | 2022-03-29 |
| CN114248422B CN114248422B (en) | 2023-04-21 |
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|---|---|---|---|
| CN202111468494.2A Active CN114248422B (en) | 2021-12-03 | 2021-12-03 | Bending and shaping tool and method for RT/Duriod board |
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Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6409488A (en) * | 1963-08-22 | 1965-02-23 | ||
| GB1310298A (en) * | 1969-12-13 | 1973-03-14 | Moller H G | Deep-drawing mould for shaping thermoplastic panels |
| US3831239A (en) * | 1972-06-23 | 1974-08-27 | Saint Gobain | Apparatus for bending glass |
| EP0038922A2 (en) * | 1980-04-25 | 1981-11-04 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Means for heating a moulded multi-layered article having a large surface |
| EP0237231A1 (en) * | 1986-03-14 | 1987-09-16 | Glasstech, Inc. | Glass sheet press bending system |
| US5053069A (en) * | 1989-06-22 | 1991-10-01 | Saint-Gobain Vitrage International | Process and device for bending and tempering by contact |
| JP2000135756A (en) * | 1998-10-30 | 2000-05-16 | Honda Motor Co Ltd | Decorative sheet, production thereof and production of molded product fitted with decorative sheet |
| JP2002160289A (en) * | 2000-11-22 | 2002-06-04 | Ckd Corp | Device for molding laminated film |
| US20020168496A1 (en) * | 1999-12-28 | 2002-11-14 | Kiyotake Morimoto | Method of deforming vacuum heat insulation material, method of fixing vacuum heat insulation material, refrigeration, cold storage vessel, and heat insulation box body |
| US20040191160A1 (en) * | 2003-03-28 | 2004-09-30 | Wataru Sugimoto | Ruthenic acid nanosheet and production method thereof |
| JP2007129039A (en) * | 2005-11-02 | 2007-05-24 | Nippon Pillar Packing Co Ltd | Fluorine resin printed circuit board and manufacturing method thereof |
| JP2007144469A (en) * | 2005-11-29 | 2007-06-14 | Canon Chemicals Inc | Bending method of composite metal plate |
| JP4189932B1 (en) * | 2007-09-16 | 2008-12-03 | 三研工業株式会社 | Laminated plate folding structure and method for manufacturing the same |
| WO2013021719A1 (en) * | 2011-08-09 | 2013-02-14 | 財団法人生産技術研究奨励会 | Fiber reinforced composite panel shaping method |
| JP2014065054A (en) * | 2012-09-26 | 2014-04-17 | Nec Corp | Method for processing metal, metallic material, method for manufacturing metal resin composite material, and apparatus for processing metallic material |
| WO2015008735A1 (en) * | 2013-07-16 | 2015-01-22 | 三菱樹脂株式会社 | Method for producing molded body and molded body |
| CN104540654A (en) * | 2012-06-18 | 2015-04-22 | 德累斯顿工业技术大学 | Layer-shaped semifinished product and method for the production thereof |
| CN104999000A (en) * | 2015-07-15 | 2015-10-28 | 西安航空动力股份有限公司 | Machining method of wave spring |
| CN105538675A (en) * | 2015-12-01 | 2016-05-04 | 东兴华鸿光学科技有限公司 | Light and efficient polarizing film bending manufacturing tool |
| JP2017221957A (en) * | 2016-06-14 | 2017-12-21 | 三菱アルミニウム株式会社 | Bending processing method of aluminum resin composite laminate plate |
| US20180162074A1 (en) * | 2015-06-02 | 2018-06-14 | Mitsubishi Chemical Corporation | Method for manufacturing fiber-reinforced plastic molded body |
| CN108218199A (en) * | 2016-12-21 | 2018-06-29 | 蓝思科技（长沙）有限公司 | A kind of molding die of tetra- side hot bending products of 3D |
| CN209077396U (en) * | 2018-11-13 | 2019-07-09 | 深圳市诺峰光电设备有限公司 | A kind of glass evacuated heat pressing utensil overturning of 3D and translating device |
| CN110564944A (en) * | 2019-09-30 | 2019-12-13 | 贵州航天电子科技有限公司 | Beryllium bronze contact reed heat treatment positioning tool and heat treatment process using same |
| CN112174499A (en) * | 2020-09-30 | 2021-01-05 | 昆山工研院新型平板显示技术中心有限公司 | Forming method and forming device for curved cover plate |
| CN113286425A (en) * | 2021-05-25 | 2021-08-20 | 中国电子科技集团公司第二十九研究所 | Blind-mate structure for vertical interconnection between boards and implementation method thereof |
-
2021
- 2021-12-03 CN CN202111468494.2A patent/CN114248422B/en active Active
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6409488A (en) * | 1963-08-22 | 1965-02-23 | ||
| GB1088286A (en) * | 1963-08-22 | 1967-10-25 | Distillers Co Yeast Ltd | Plastics containers |
| GB1310298A (en) * | 1969-12-13 | 1973-03-14 | Moller H G | Deep-drawing mould for shaping thermoplastic panels |
| US3831239A (en) * | 1972-06-23 | 1974-08-27 | Saint Gobain | Apparatus for bending glass |
| EP0038922A2 (en) * | 1980-04-25 | 1981-11-04 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Means for heating a moulded multi-layered article having a large surface |
| EP0237231A1 (en) * | 1986-03-14 | 1987-09-16 | Glasstech, Inc. | Glass sheet press bending system |
| US5053069A (en) * | 1989-06-22 | 1991-10-01 | Saint-Gobain Vitrage International | Process and device for bending and tempering by contact |
| JP2000135756A (en) * | 1998-10-30 | 2000-05-16 | Honda Motor Co Ltd | Decorative sheet, production thereof and production of molded product fitted with decorative sheet |
| US20020168496A1 (en) * | 1999-12-28 | 2002-11-14 | Kiyotake Morimoto | Method of deforming vacuum heat insulation material, method of fixing vacuum heat insulation material, refrigeration, cold storage vessel, and heat insulation box body |
| JP2002160289A (en) * | 2000-11-22 | 2002-06-04 | Ckd Corp | Device for molding laminated film |
| US20040191160A1 (en) * | 2003-03-28 | 2004-09-30 | Wataru Sugimoto | Ruthenic acid nanosheet and production method thereof |
| JP2007129039A (en) * | 2005-11-02 | 2007-05-24 | Nippon Pillar Packing Co Ltd | Fluorine resin printed circuit board and manufacturing method thereof |
| JP2007144469A (en) * | 2005-11-29 | 2007-06-14 | Canon Chemicals Inc | Bending method of composite metal plate |
| JP4189932B1 (en) * | 2007-09-16 | 2008-12-03 | 三研工業株式会社 | Laminated plate folding structure and method for manufacturing the same |
| WO2013021719A1 (en) * | 2011-08-09 | 2013-02-14 | 財団法人生産技術研究奨励会 | Fiber reinforced composite panel shaping method |
| CN104540654A (en) * | 2012-06-18 | 2015-04-22 | 德累斯顿工业技术大学 | Layer-shaped semifinished product and method for the production thereof |
| JP2014065054A (en) * | 2012-09-26 | 2014-04-17 | Nec Corp | Method for processing metal, metallic material, method for manufacturing metal resin composite material, and apparatus for processing metallic material |
| WO2015008735A1 (en) * | 2013-07-16 | 2015-01-22 | 三菱樹脂株式会社 | Method for producing molded body and molded body |
| US20180162074A1 (en) * | 2015-06-02 | 2018-06-14 | Mitsubishi Chemical Corporation | Method for manufacturing fiber-reinforced plastic molded body |
| CN104999000A (en) * | 2015-07-15 | 2015-10-28 | 西安航空动力股份有限公司 | Machining method of wave spring |
| CN105538675A (en) * | 2015-12-01 | 2016-05-04 | 东兴华鸿光学科技有限公司 | Light and efficient polarizing film bending manufacturing tool |
| JP2017221957A (en) * | 2016-06-14 | 2017-12-21 | 三菱アルミニウム株式会社 | Bending processing method of aluminum resin composite laminate plate |
| CN108218199A (en) * | 2016-12-21 | 2018-06-29 | 蓝思科技（长沙）有限公司 | A kind of molding die of tetra- side hot bending products of 3D |
| CN209077396U (en) * | 2018-11-13 | 2019-07-09 | 深圳市诺峰光电设备有限公司 | A kind of glass evacuated heat pressing utensil overturning of 3D and translating device |
| CN110564944A (en) * | 2019-09-30 | 2019-12-13 | 贵州航天电子科技有限公司 | Beryllium bronze contact reed heat treatment positioning tool and heat treatment process using same |
| CN112174499A (en) * | 2020-09-30 | 2021-01-05 | 昆山工研院新型平板显示技术中心有限公司 | Forming method and forming device for curved cover plate |
| CN113286425A (en) * | 2021-05-25 | 2021-08-20 | 中国电子科技集团公司第二十九研究所 | Blind-mate structure for vertical interconnection between boards and implementation method thereof |
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| Publication number | Publication date |
|---|---|
| CN114248422B (en) | 2023-04-21 |
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