CN110450322B - Resin-based composite material forming expansion inflation mould - Google Patents
Resin-based composite material forming expansion inflation mould Download PDFInfo
- Publication number
- CN110450322B CN110450322B CN201910705304.0A CN201910705304A CN110450322B CN 110450322 B CN110450322 B CN 110450322B CN 201910705304 A CN201910705304 A CN 201910705304A CN 110450322 B CN110450322 B CN 110450322B
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- Prior art keywords
- air valve
- fixedly connected
- die body
- plate
- air
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- 239000000463 material Substances 0.000 title claims abstract description 14
- 239000000805 composite resin Substances 0.000 title claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 4
- 210000003437 trachea Anatomy 0.000 description 18
- 239000002131 composite material Substances 0.000 description 9
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
- B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
- B29C33/505—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to the technical field of inflation moulds, in particular to an expansion inflation mould for molding resin-based composite materials, which comprises a mould body, wherein the upper end of the mould body is fixedly connected with a turntable, two sides of the turntable are respectively connected with a movable shaft through the rotation of a rotating shaft, the upper end of the movable shaft is connected with a support rod in a clamping way, one side of the upper end of the support rod, which is rotatably connected with a handle movable shaft through the rotating shaft, is rotatably connected with a rotating handle through the rotating shaft, one side of the upper end of the mould body is provided with a first air valve, the other side of the upper end of the mould body is provided with a second air valve, the first air valve and the second air valve have the same positions and are different, the first air valve and the second air valve respectively comprise a first plate, a second plate, an air pipe and a fixed block, one end of the inflation mould is provided with, the pipe orifice is sealed through the sealing structure, the use is simple and convenient, and gas is not easy to leak.
Description
Technical Field
The invention belongs to the technical field of inflatable molds, and particularly relates to an expansion inflatable mold for molding resin matrix composite materials.
Background
The resin-based composite material molding expansion inflation die is an expandable and contractible cylindrical bag, has enough strength to bear the external pressure after inflation and expansion, is mainly used for manufacturing a cavity of a composite material member, and is suitable for drawing holes of the composite material member. When the hollow member is made, it is placed in the middle, and is filled with compressed air, after the composite material is solidified, the air in the bag is discharged, and the capsule can be drawn out from the cavity, so that it is simple and convenient to use, economic and durable, and can be arbitrarily folded and curled, and its air-filling state is soft.
At present, most of inflatable molds are inflated and deflated through air valves in the using process, and the gas inside the inflatable molds is easy to leak under the action of external pressure and under the condition of improper operation, so that the requirement of the diameter of the pre-designed mold can not be easily met, and the use is inconvenient; meanwhile, in the use process of the inflatable mold, the inflatable mold after use needs to be pulled by manpower to be taken out, and the retractable mode enables the retractable efficiency of the inflatable mold to be low.
Disclosure of Invention
The invention aims to provide a resin-based composite material molding expansion inflation die, which solves the problem of low retraction efficiency of the inflation die in the prior art.
Resin matrix combined material shaping inflation mould, including the die body, the upper end fixedly connected with carousel of die body, the both sides of carousel rotate through the pivot and all are connected with the loose axle, the upper end block of loose axle is connected with the bracing piece, the upper end of bracing piece rotates one side that is connected with the handle loose axle through the pivot and rotates through the pivot and be connected with the commentaries on classics handle, upper end one side of die body is provided with the pneumatic valve No. one, the upper end opposite side of die body is provided with the pneumatic valve No. two, pneumatic valve and pneumatic valve structure same position No. two are different, pneumatic valve and pneumatic valve No. two all include a board, No. two boards.
As the preferable technical scheme of the resin matrix composite material molding expansion inflation die, the central positions of a first air valve and a second air valve are positioned at the upper ends of die bodies and are both fixedly connected with air pipes, the periphery of the outer part of the upper end of each air pipe is fixedly connected with a fixing ring, each fixing ring is of an arc-shaped structure, and the surfaces of two sides of each fixing ring are rotatably connected with hanging rings through rotating shafts, and each hanging ring is of an arc-shaped structure.
As the preferable technical scheme of the resin matrix composite material molding expansion inflation die, one side of the air pipe, which is positioned at the upper end of the die body, is fixedly connected with a first plate, the first plate is of an arc-shaped structure, the surface of one side of the first plate is fixedly connected with a hook, the hook is of an arc-shaped structure, and the hook is clamped with the hanging ring.
As the preferable technical scheme of the resin matrix composite material molding expansion inflation die, the other side of the air pipe, which is positioned at the upper end of the die body, is fixedly connected with a second plate, the second plate is of an arc structure, the surface of one side of the second plate is fixedly connected with a gasket, the gasket is of a square structure, and the gasket is attached to the air pipe.
As the preferable technical scheme of the resin matrix composite material molding expansion inflation die, one side of the bottom end of the air pipe is positioned at the upper end of the die body and is fixedly connected with a fixed block, the fixed block is of a square structure, and the upper end of the fixed block is elastically connected with the surface of one side of the fixed ring through a spring.
As the preferable technical scheme of the resin matrix composite material molding expansion inflation die, the turntable is of an annular structure, and the bottom end of the turntable is fixedly connected with the upper end of the die body.
As the preferable technical scheme of the resin-based composite material molding expansion inflation die, the movable shaft is of a Z-shaped structure, and the periphery of the outer part of the movable shaft is sleeved with the rubber sleeve.
Compared with the prior art, the invention has the beneficial effects that: the air valve is arranged at one end of the inflation die and comprises a clamping structure, an elastic structure and a sealing structure, when inflation work starts, inflation work is carried out through the clamping structure, after inflation work is finished, the elastic structure automatically retracts, and the sealing structure seals the pipe orifice, so that the use is simple and convenient, and air is not easy to leak; one end of the inflatable mold is provided with a manual retraction structure, and the inflatable mold at the tail end is retracted and wound on the turntable through the manual retraction structure, so that the inflatable mold is simple to use and convenient to retract.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a front view of the turntable connection in the present invention;
FIG. 3 is a schematic top view of the turntable assembly of the present invention;
FIG. 4 is a schematic view of a natural state structure of a first air valve according to the present invention;
fig. 5 is a structural schematic diagram of the working state of the first air valve in the invention.
In the figure: 1. a mold body; 2. a turntable; 3. a movable shaft; 4. turning a handle; 5. a support bar; 6. a grip; 7. a first air valve; 8. a second air valve; 9. a first board; 10. hooking; 11. a second plate; 12. a gasket; 13. an air tube; 14. a stationary ring; 15. hanging a ring; 16. a fixed block; 17. a spring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-5, the present invention provides the following technical solutions: the resin-based composite material molding expansion inflation mold comprises a mold body 1, wherein the upper end of the mold body 1 is fixedly connected with a turntable 2, two sides of the turntable 2 are respectively connected with a movable shaft 3 through rotating shafts in a rotating mode, the upper end of the movable shaft 3 is connected with a support rod 5 in a clamping mode, one side of the upper end of the support rod 5, which is connected with a handle 6 through rotating shafts in a rotating mode, of the movable shaft 3 is connected with a rotating handle 4 through rotating shafts in a rotating mode, one side of the upper end of the mold body 1 is provided with a first air valve 7, the other side of the upper end of the mold body 1 is provided with a second air valve 8, the first air valve 7 and the second air valve 8 are identical in structure and different in position, the first air valve 7 and the second air valve 8 respectively comprise a first plate 9, a second plate 11, an air pipe 13 and a fixed block 16, the mold body 1 in the embodiment, the movable shaft 3 is used for rotating the rotary disc 2 and the rotating handle 4, the rotating handle 4 is used for driving the rotary disc 2 to rotate, the supporting rod 5 and the handle 6 are made of metal materials and used for lifting the rotary disc 2 and the inflation die, and are convenient to use, the first air valve 7 and the second air valve 8 are both used for inflation and deflation of the inflation die, the first plate 9 is used for clamping the air pipe 13, the second plate 11 is used for sealing the air pipe 13, the air pipe 13 is used for inflation and deflation, the fixed block 16 is used for being connected with the spring 17, and the air pipe 13 is driven to elastically retract and release through the spring 17.
Specifically, the central positions of the first air valve 7 and the second air valve 8 are located at the upper end of the mold body 1 and are fixedly connected with an air pipe 13, the outer portion of the upper end of the air pipe 13 is fixedly connected with a fixing ring 14 all around, the fixing ring 14 is of an arc-shaped structure, two side surfaces of the fixing ring 14 are rotatably connected with hanging rings 15 through rotating shafts, the hanging rings 15 are of arc-shaped structures, in the embodiment, the first air valve 7 and the second air valve 8 are used for inflation and deflation of the inflation mold and are arranged on two sides of the upper end of the inflation mold, the air pipe 13 is made of rubber, a metal air core is arranged inside the air pipe, the fixing ring 14 is made of metal plastic, and is of a cylindrical structure and used for connecting a spring 17, and the hanging rings 15 are made of metal and are of arc-shaped structures and used for.
Specifically, one side of trachea 13 is located equal fixedly connected with one plate 9 in the upper end of die body 1, one plate 9 is the arc structure, one side fixed surface of one plate 9 is connected with couple 10, couple 10 is the arc structure, couple 10 and link 15 looks block, one plate 9 is the plastics material in this embodiment, the arc structure, be used for connecting couple 10, couple 10 is the metal material, the arc structure, be used for connecting link 15, upwards stimulate trachea 13 of No. 7 or No. two pneumatic valves 8 central point departments around pneumatic valve 7, trachea 13 drives the spring 17 elastic stretching of one side through outside retainer plate 14 all around, hang the outside 15 blocks of link that lie in retainer plate 14 surface one side all around of trachea 13 to the couple 10 of one plate 9 one side, aerify work.
Specifically, the equal fixedly connected with of opposite side of trachea 13 is located the equal two boards 11 of upper end of die body 1, two boards 11 are the arc structure, one side fixed surface of two boards 11 is connected with gasket 12, gasket 12 is square structure, gasket 12 and trachea 13 are laminated mutually, two boards 11 are the plastics material in this embodiment, the arc structure, be used for connecting gasket 12, gasket 12 is the rubber material, square structure, be used for tracheal 13's orificial involution, loosen trachea 13, trachea 13 relies on one side spring 17's elasticity to retract, it retraces one side to drive trachea 13, the mouth of pipe of trachea 13 upper end is laminated with two pads 12 of board 11 one side mutually, the mouth of pipe seals.
Specifically, trachea 13 bottom one side is located the upper end fixedly connected with fixed block 16 of die body 1, fixed block 16 is square structure, one side surface elasticity that spring 17 and retainer plate 14 were passed through to the upper end of fixed block 16 is connected, fixed block 16 is square structure in this embodiment, be used for connecting spring 17, spring 17 is used for driving trachea 13 elasticity and receive and release, loosen trachea 13, trachea 13 relies on the elasticity of one side spring 17 to retract, it turns back one side to drive trachea 13, the mouth of pipe of trachea 13 upper end is laminated with the gasket 12 of No. two board 11 one sides mutually, the mouth of pipe seals.
Specifically, carousel 2 is the loop configuration, and carousel 2's bottom and 1 upper end of die body are fixed phase and are connected, and carousel 2 is the metal material in this embodiment, loop configuration, and inside cavity for aerify receiving and releasing and supplementary calibration of mould.
Specifically, loose axle 3 is zigzag structure, and the outside of loose axle 3 is registrated all around has the rubber sleeve, and loose axle 3 is the metal material in this embodiment for change 4 and the rotation of carousel 2.
The working principle and the using process of the invention are as follows: when the invention is used, a die body 1 is placed in a wooden or plastic pouring shell, a turntable 2 at the upper end of the die body 1 is attached to the upper end of the pouring shell around the outer part of the upper end of the die body 1, auxiliary calibration and fixation are carried out, the die body 1 is placed in the central position of the inner part of the pouring shell, then inflation work is carried out, an air pump is prepared, an air pipe 13 at the central position of a first air valve 7 or a second air valve 8 is pulled upwards, the air pipe 13 drives a spring 17 at one side to be elastically stretched through a fixing ring 14 at the periphery of the outer part, a hanging ring 15 at one side of the outer surface of the fixing ring 14 at the periphery of the air pipe 13 is clamped and hung on a hook 10 at one side of a first plate 9 for inflation work, after inflation is finished, the hanging ring 15 is taken down from the hook 10, then the air pipe 13 is released, the air pipe 13 drives the air pipe 13 to be folded back to one side by virtue of, the mouth of pipe seals, trachea 13 central point puts the folding laminating state that is simultaneously, under the dual function of above-mentioned structure and the inside original gas core of trachea 13, gas loss is less, integrated into one piece is for having the post of cavity loop configuration, roof beam or stake, then the work of exitting, carry out the work of exitting to 1 inside of die body through a pneumatic valve 7 or No. two pneumatic valves 8 according to above-mentioned method, 1 gas loss of die body is the shrivelled state, pull handle 6 and bracing piece 5 to lifting, rotate the commentaries on classics 4 of 2 arbitrary departments in carousel 2 both sides, drive carousel 2 through changeing 4 and bracing piece 5 and rotate, 1 winding of die body with carousel 2 bottom is withdrawed around the outside of carousel 2, carry out the secondary and use.
Claims (3)
1. Resin matrix combined material shaping inflation mould, its characterized in that: the air valve device comprises a die body (1), wherein the upper end of the die body (1) is fixedly connected with a rotary table (2), two sides of the rotary table (2) are respectively connected with a movable shaft (3) through rotation of a rotary shaft, the upper end of the movable shaft (3) is connected with a support rod (5) in a clamping manner, the upper end of the support rod (5) is connected with a handle (6) through rotation of the rotary shaft, one side of the movable shaft (3) is rotatably connected with a rotating handle (4) through the rotary shaft, one side of the upper end of the die body (1) is provided with a first air valve (7), the other side of the upper end of the die body (1) is provided with a second air valve (8), the first air valve (7) and the second air valve (8) have the same structure and different positions, and the first air valve (7);
the central positions of the first air valve (7) and the second air valve (8) are positioned at the upper end of the die body (1) and are fixedly connected with air pipes (13), the periphery of the outer part of the upper end of each air pipe (13) is fixedly connected with a fixing ring (14), each fixing ring (14) is of an arc-shaped structure, the surfaces of two sides of each fixing ring (14) are rotatably connected with hanging rings (15) through rotating shafts, and each hanging ring (15) is of an arc-shaped structure;
one side of the air pipe (13) is positioned at the upper end of the die body (1) and is fixedly connected with a first plate (9), the first plate (9) is of an arc-shaped structure, the surface of one side of the first plate (9) is fixedly connected with a hook (10), the hook (10) is of an arc-shaped structure, and the hook (10) is clamped with a hanging ring (15);
the other side of the air pipe (13) is positioned at the upper end of the die body (1) and is fixedly connected with a second plate (11), the second plate (11) is of an arc structure, a gasket (12) is fixedly connected to the surface of one side of the second plate (11), the gasket (12) is of a square structure, and the gasket (12) is attached to the air pipe (13);
one side of the bottom end of the air pipe (13) is positioned at the upper end of the die body (1) and is fixedly connected with a fixing block (16), the fixing block (16) is of a square structure, and the upper end of the fixing block (16) is elastically connected with the surface of one side of the fixing ring (14) through a spring (17).
2. The resin-based composite material molding expansion inflation die as claimed in claim 1, wherein: the rotary table (2) is of an annular structure, and the bottom end of the rotary table (2) is fixedly connected with the upper end of the die body (1).
3. The resin-based composite material molding expansion inflation die as claimed in claim 1, wherein: the movable shaft (3) is of a Z-shaped structure, and the periphery of the outer part of the movable shaft (3) is sleeved with a rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705304.0A CN110450322B (en) | 2019-07-31 | 2019-07-31 | Resin-based composite material forming expansion inflation mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705304.0A CN110450322B (en) | 2019-07-31 | 2019-07-31 | Resin-based composite material forming expansion inflation mould |
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| Publication Number | Publication Date |
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| CN110450322A CN110450322A (en) | 2019-11-15 |
| CN110450322B true CN110450322B (en) | 2021-06-01 |
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| CN201910705304.0A Active CN110450322B (en) | 2019-07-31 | 2019-07-31 | Resin-based composite material forming expansion inflation mould |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB903734A (en) * | 1957-10-05 | 1962-08-15 | Alfred Kepka | Processes for the manufacture of hollow articles from reinforced synthetic resins |
| DE3110091A1 (en) * | 1980-03-25 | 1982-02-18 | Hitachi Shipbuilding & Engineering Co., Ltd., Osaka | Process and device for producing curved pipes from composite material |
| DE3337988A1 (en) * | 1982-10-22 | 1984-04-26 | Olaer Ind Sa | ELASTOMER BUBBLE, THEIR PRODUCTION PROCESS, THEIR FORM AND THEIR APPLICATIONS, IN PARTICULAR PRESSURE TANK |
| CN202021680U (en) * | 2011-04-25 | 2011-11-02 | 齐新明 | Inflatable mould for beam slab pre-stressed hole |
| CN202469015U (en) * | 2012-02-17 | 2012-10-03 | 付啟贵 | Direct-connected corrugated pipe valves |
| CN104669642A (en) * | 2015-01-13 | 2015-06-03 | 哈尔滨飞机工业集团有限责任公司 | Method for molding tail blades of composite material by using airbag |
| CN207338839U (en) * | 2017-05-19 | 2018-05-08 | 天津市明新电子有限公司 | A kind of electric automobile connecting line of closed type water-inlet-proof |
| CN105881937B (en) * | 2016-05-06 | 2018-09-07 | 昌河飞机工业（集团）有限责任公司 | Whole double-layer air bag and its manufacturing method for composite molding |
| CN207942608U (en) * | 2018-02-12 | 2018-10-09 | 青岛森昊减震科技有限公司 | A kind of leather bag sulfurizing mould of air spring |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6565792B2 (en) * | 2001-05-11 | 2003-05-20 | Hardcore Composites | Apparatus and method for use in molding a composite structure |
| CN102729488B (en) * | 2012-07-05 | 2013-05-08 | 中联重科股份有限公司 | Carbon fiber composite material arm support, production method thereof and concrete pump truck comprising same |
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2019
- 2019-07-31 CN CN201910705304.0A patent/CN110450322B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB903734A (en) * | 1957-10-05 | 1962-08-15 | Alfred Kepka | Processes for the manufacture of hollow articles from reinforced synthetic resins |
| DE3110091A1 (en) * | 1980-03-25 | 1982-02-18 | Hitachi Shipbuilding & Engineering Co., Ltd., Osaka | Process and device for producing curved pipes from composite material |
| DE3337988A1 (en) * | 1982-10-22 | 1984-04-26 | Olaer Ind Sa | ELASTOMER BUBBLE, THEIR PRODUCTION PROCESS, THEIR FORM AND THEIR APPLICATIONS, IN PARTICULAR PRESSURE TANK |
| CN202021680U (en) * | 2011-04-25 | 2011-11-02 | 齐新明 | Inflatable mould for beam slab pre-stressed hole |
| CN202469015U (en) * | 2012-02-17 | 2012-10-03 | 付啟贵 | Direct-connected corrugated pipe valves |
| CN104669642A (en) * | 2015-01-13 | 2015-06-03 | 哈尔滨飞机工业集团有限责任公司 | Method for molding tail blades of composite material by using airbag |
| CN105881937B (en) * | 2016-05-06 | 2018-09-07 | 昌河飞机工业（集团）有限责任公司 | Whole double-layer air bag and its manufacturing method for composite molding |
| CN207338839U (en) * | 2017-05-19 | 2018-05-08 | 天津市明新电子有限公司 | A kind of electric automobile connecting line of closed type water-inlet-proof |
| CN207942608U (en) * | 2018-02-12 | 2018-10-09 | 青岛森昊减震科技有限公司 | A kind of leather bag sulfurizing mould of air spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110450322A (en) | 2019-11-15 |
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Effective date of registration: 20240717 Address after: No. 12, 1st Road, Phase II Planning of National Aviation High tech Industrial Base, Xi'an City, Shaanxi Province, China 710522 Patentee after: Shaanxi Huanghe Xinxing New Material Technology Co.,Ltd. Country or region after: China Address before: 710089 No. 48 Renmin West Road, Yanliang District, Xi'an City, Shaanxi Province Patentee before: XI'AN AERONAUTICAL POLYTECHNIC INSTITUTE Country or region before: China |