CN105711113A - Experiment-grade RTM (Resin Transfer Molding) constant-pressure injection system and constant-pressure injection method - Google Patents
Experiment-grade RTM (Resin Transfer Molding) constant-pressure injection system and constant-pressure injection method Download PDFInfo
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- CN105711113A CN105711113A CN201610067131.0A CN201610067131A CN105711113A CN 105711113 A CN105711113 A CN 105711113A CN 201610067131 A CN201610067131 A CN 201610067131A CN 105711113 A CN105711113 A CN 105711113A
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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
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an experiment-grade RTM (Resin Transfer Molding) constant-pressure injection system and a constant-pressure injection method. The system realizes RTM single-component constant-pressure injection through simple and easy connection of a vacuum gauge, a storage tank, a vacuum tank, a vacuum pump, a flash collecting tank, pipelines and valves. The system is simple and convenient to disassemble and assemble and easy to clean, and meanwhile can realize a constant-flow-velocity injection function in an injection process by regulating the injection pressure with an air compressor. The system has high matching capacity, and is simple in structure, low in cost, convenient to disassemble and clean and suitable for forming of experimental samples and small-sized parts of factories and scientific research institutions. The system is used for laboratory RTM research, small-batch production of experimental samples, reduction of the production cost and RTM technology research, and meanwhile can realize vacuum auxiliary injection molding.
Description
Technical field
The invention belongs to RTM technical field, relate to a kind of method testing grade RTM constant voltage injecting systems and constant voltage injection, by the universal product and parts such as air compressor, vacuum pump and cylinders, it is achieved RTM one-component constant voltage is injected.
Background technology
At present, development along with resin base fiber reinforced composite material, occur in that a lot of low-cost manufacturing technique, resin transfer moulding (RTM) forming technique is as the important branch of resin base fiber reinforced composite material forming technique, increasingly it is subject to the attention of Chinese scholars, RTM technique is a kind of mold closing technique, it is under pressure by the mold cavity of the low viscous resin preset reinforcing material of injection, make resin complete wetting reinforcing material precast body, then pass through the modes such as constant temperature and carry out resin solidification, thus the technique preparing material.At present due to features such as RTM technique designability are strong, molding cycle is short, so it is widely used in Aero-Space, shipbuilding, the every field such as automobile industry.
RTM injection moulding method and injecting systems have had more application at present, and such as double-component injection system and one-component injecting systems, these systems are capable of the injection of low temperature constant voltage/constant current.But the complexity of these device structures design at present, cost intensive, as domestic injection device price is typically between 200,000-40 ten thousand, inlet device price is general all more than 700,000.For current injection device, injecting systems pipeline is oversize, and waste of material rate is high, and various pipe valves also very easily damage, and cause that the use cost of existing equipment is significantly high.These injection devices are not suitable for scientific research institutions and enterprise carries out testpieces and the production of small lot product.
Summary of the invention
Solve the technical problem that
In order to avoid the deficiencies in the prior art part, the present invention proposes a kind of method testing grade RTM constant voltage injecting systems and constant voltage injection, solution injecting systems is with high costs, be not suitable for scientific research institutions and enterprise carries out testpieces and the production of small lot product, realize the low cost of resin transfer moulding (RTM) forming process, simplicity, controllability, the problem such as convenience.
Technical scheme
A kind of experiment level RTM constant voltage injecting systems, it is characterised in that include air compressor 3, vacuum pump 8, storage tank 13, vacuum tank 6, storage tank three way cock 2, vacuum tank three way cock 15, vacuum tank four-way connection 16, Pressure gauge 4, valve and flash collection device；By geat valve 14 by being screwed to connect mold gate soon bottom storage tank 13, top is provided with the storage tank three way cock 2 connected with tank；Other two reduction of fractions to a common denominators of storage tank three way cock 2 do not connect storing the first valve 11 and storing the second valve 12, and storing the first valve 11 is connected with air compressor 3 by fast twisting, and storing the second valve 12 is connected with vacuum the first valve 10 on vacuum tank 6；The vacuum three way cock 15 connected with tank bottom vacuum tank 6, other two reduction of fractions to a common denominators of vacuum three way cock 15 do not connect vacuum tank the first valve 10 and vacuum tank the second valve 9, vacuum tank the second valve 9 is connected with flash collecting tank 1 by fast twisting, flash collecting tank 1 is connected with mould rising head, and vacuum tank the first valve 10 is connected with storing the second valve 12 by fast twisting；Vacuum tank 6 be provided with the four-way connection connected with tank, four-way connection one end connects pressure vacuum gauge, additionally two ends connect vacuum the 3rd valve 7 and vacuum the 4th valve 5 respectively, and vacuum the 3rd valve 7 is by being screwed to connect vacuum pump 8 soon, and vacuum the 4th valve 5 is connected with air by fast twisting；The connector of described flash collecting tank 1 is for sealing structure.
A kind of method utilizing described experiment level RTM constant voltage injecting systems to carry out constant voltage injection, it is characterised in that step is as follows:
Step 1, mixed with resin and deaeration:
The pipeline of connection geat valve 14 is inserted in resin and the firming agent of the ratio of preparing, open vacuum the 3rd valve 7, vacuum the first valve 10, storing the second valve 12 and geat valve 14, simultaneously close off vacuum the 4th valve 5, vacuum the second valve 9 and storing the first valve 11；Then vacuum pump is started, by vacuum tank 6 and storage tank 13 evacuation so that the resin after being pre-mixed and firming agent are inhaled in storage tank by geat valve 14 under suction function；
Suction closes geat valve 14 after completing, when in storage tank 13, vacuum reaches production engineering specifications and maintains 15-20min and carry out vacuum defoamation；Vacuum tank 6 also functions to cushioning effect in the process, it is prevented that mixed resin and firming agent enter into and cause vacuum pump to damage in vacuum pump.
Step 2, complete vacuum defoamation after carry out mould evacuation:
Close geat valve 14, by geat valve 14, storage tank 13 is connected with mold gate, close storing the second valve 12 and vacuum the first valve 10, open vacuum the second valve 9 simultaneously, vacuum pump continues evacuation, until vacuum reaches production engineering specifications and maintains 10-15min and make mould complete evacuation in flash collecting tank 1；
Step 3, resin are injected:
After mould completes evacuation, start air compressor, regulate the stable numerical value at production engineering specifications of pressure output value of air compressor, open storing the first valve 11 and geat valve 14, resin just enters in mould at constant pressure flows by action, complete constant voltage injection, continue in injection process mould evacuation.
After constant voltage has been injected, carrying out the cleaning of storage tank, provide for the injection of constant voltage next time and prepare, cleaning step is:
Step (1), injected after, the pipeline being connected with geat is extracted, provides pressure to be discharged with firming agent by resin by air compressor in the residual resin in storage tank and firming agent；
Step (2), closedown geat valve 14, by geat valve 14, the jar of storage tank 13 with resin scavenger specially is connected, open vacuum the 3rd valve 7, vacuum the first valve 10, storing the second valve 12 and geat valve 14, simultaneously close off vacuum the 4th valve 5, vacuum the second valve 9 and storing the first valve 11；Then start vacuum pump, abluent is sucked in storage tank；
Step (3), unlatching storing the first valve 11 also close storing the second valve 12, start air compressor and are discharged from storage tank by resin scavenger specially；
Repeat step 2-step 3 many times, until not having resin in storage tank and valve is that cleaning completes.
Described repetition step 2-step 3 is for many times 2～3 times.
Beneficial effect
A kind of method testing grade RTM constant voltage injecting systems and constant voltage injection that the present invention proposes, system is connected with valve by easy vacuum meter, storage tank, vacuum tank, vacuum pump, flash collecting tank and pipeline, it is achieved RTM one-component constant voltage is injected.And dismounting simplicity, it is easy to clean, injection pressure can be regulated by air compressor in injection process, it is possible to realize constant current speed function of injection simultaneously.
Present system ability to provide the auxiliary items is strong, simple in construction, with low cost, dismounting facilitate with cleaning, it is adaptable to the molding of factory, the testpieces of scientific research institutions and small piece.For the research of laboratory resin transfer moulding, small lot manufactures experimental piece, reduces production cost, studies resin transfer molding (RTM) process, can also realize vacuum aided injection moulding simultaneously.
The inventive method in operation, can be passed through vacuum pump and control the vacuum of storage tank, vacuum tube, mould simultaneously, be connected with valve bottom storage tank, it is achieved resin sucks and discharges by same valve, simple in construction.Flash collecting tank is responsible for collecting the Excess resin that mould rising head flows out, and is beneficial to technological parameter and improves.
Accompanying drawing explanation
Fig. 1 present system schematic diagram
1. flash collecting tank 2. storage tank three way cock 3. air compressor 4. vacuum meter 5. valve 6. vacuum tank 7. valve 8. vacuum pump 9. valve 10. valve 11. valve 12. valve 13. storage tank 14. valve 15 vacuum tank three way cock 16 vacuum tank four-way connection.
Detailed description of the invention
In conjunction with embodiment, accompanying drawing, the invention will be further described:
The embodiment of the present invention is a kind of one-component constant voltage injection device, and it is mainly characterized by form the RTM injection device that the present invention designs by including air compressor, vacuum pump, storage tank, vacuum tank, vacuum meter, Pressure gauge, valve, flash collection device, pipeline etc..
Vacuum tank and storage tank structure be: storage tank and vacuum tank are all cylindrical on the whole, tank deck and tank bottoms be cuboid composition, and be threaded mouth, will be connected inside and outside tank body by screwed hole.Storage tank is primarily used to storage before the injection and has been pre-mixed resin and firming agent.The Main Function of vacuum tank is to play UNICOM's effects such as connection vacuum pump and storage tank in vacuum.
The material sucking port of resin and injection port adopt same valve to realize, and design structure becomes simple, easy and simple to handle.Produce constant pressure by air compressor, infuse resin in mould, it is achieved that constant voltage is injected, and pressure is relatively stable, can meet production requirement.
Connection between all valves with adaptor, hole is used that threadeding of equal model, needing in its connection procedure to be wound around band, its effect is to prevent seepage of resin in device busy process, and pipeline is to be connected by stubborn soon, it is characterized in easy disassembly and good sealing effect.
Annexation is: by geat valve 14 by being screwed to connect mold gate soon bottom storage tank 13, top is provided with the storage tank three way cock 2 connected with tank；Other two reduction of fractions to a common denominators of storage tank three way cock 2 do not connect storing the first valve 11 and storing the second valve 12, and storing the first valve 11 is connected with air compressor 3 by fast twisting, and storing the second valve 12 is connected with vacuum the first valve 10 on vacuum tank 6；The vacuum three way cock 15 connected with tank bottom vacuum tank 6, other two reduction of fractions to a common denominators of vacuum three way cock 15 do not connect vacuum tank the first valve 10 and vacuum tank the second valve 9, vacuum tank the second valve 9 is connected with flash collecting tank 1 by fast twisting, flash collecting tank 1 is connected with mould rising head, and vacuum tank the first valve 10 is connected with storing the second valve 12 by fast twisting；Vacuum tank 6 be provided with the four-way connection connected with tank, four-way connection one end connects pressure vacuum gauge, additionally two ends connect vacuum the 3rd valve 7 and vacuum the 4th valve 5 respectively, and vacuum the 3rd valve 7 is by being screwed to connect vacuum pump 8 soon, and vacuum the 4th valve 5 is connected with air by fast twisting；The connector of described flash collecting tank 1 is for sealing structure.
The step that utilization experiment level RTM constant voltage injecting systems carries out constant voltage injection is as follows:
Step 1, mixed with resin and deaeration:
The pipeline of connection geat valve 14 is inserted in resin and the firming agent of the ratio of preparing, open vacuum the 3rd valve 7, vacuum the first valve 10, storing the second valve 12 and geat valve 14, simultaneously close off vacuum the 4th valve 5, vacuum the second valve 9 and storing the first valve 11；Then vacuum pump is started, by vacuum tank 6 and storage tank 13 evacuation so that the resin after being pre-mixed and firming agent are inhaled in storage tank by geat valve 14 under suction function；
Suction closes geat valve 14 after completing, when in storage tank 13, vacuum reaches production engineering specifications and maintains 15-20min and carry out vacuum defoamation；Vacuum tank 6 also functions to cushioning effect in the process, it is prevented that mixed resin and firming agent enter into and cause vacuum pump to damage in vacuum pump.
Step 2, complete vacuum defoamation after carry out mould evacuation:
Close geat valve 14, by geat valve 14, storage tank 13 is connected with mold gate, close storing the second valve 12 and vacuum the first valve 10, open vacuum the second valve 9 simultaneously, vacuum pump continues evacuation, until vacuum reaches production engineering specifications and maintains 10-15min and make mould complete evacuation in flash collecting tank 1；
Step 3, resin are injected:
After mould completes evacuation, start air compressor, regulate the stable numerical value at production engineering specifications of pressure output value of air compressor, open storing the first valve 11 and geat valve 14, resin just enters in mould at constant pressure flows by action, complete constant voltage injection, continue in injection process mould evacuation.
After constant voltage has been injected, carrying out the cleaning of storage tank, provide for the injection of constant voltage next time and prepare, cleaning step is:
Step (1), injected after, the pipeline being connected with geat is extracted, provides pressure to be discharged with firming agent by resin by air compressor in the residual resin in storage tank and firming agent；
Step (2), closedown geat valve 14, by geat valve 14, the jar of storage tank 13 with resin scavenger specially is connected, open vacuum the 3rd valve 7, vacuum the first valve 10, storing the second valve 12 and geat valve 14, simultaneously close off vacuum the 4th valve 5, vacuum the second valve 9 and storing the first valve 11；Then start vacuum pump, abluent is sucked in storage tank；
Step (3), unlatching storing the first valve 11 also close storing the second valve 12, start air compressor and are discharged from storage tank by resin scavenger specially；
Repeating do not have resin in 2～3 step 2-steps 3, storage tank and valve is that cleaning completes.
Claims (4)
1. an experiment level RTM constant voltage injecting systems, it is characterised in that include air compressor (3), vacuum pump (8), storage tank (13), vacuum tank (6), storage tank three way cock (2), vacuum tank three way cock (15), vacuum tank four-way connection (16), Pressure gauge (4), valve and flash collection device；Storage tank (13) bottom is by geat valve (14) by being screwed to connect mold gate soon, and top is provided with the storage tank three way cock (2) connected with tank；Other two reduction of fractions to a common denominators of storage tank three way cock (2) do not connect storing the first valve (11) and storing the second valve (12), storing the first valve (11) is connected with air compressor (3) by fast twisting, and storing the second valve (12) is connected with the vacuum the first valve (10) on vacuum tank (6)；The vacuum three way cock (15) that vacuum tank (6) bottom connects with tank, other two reduction of fractions to a common denominators of vacuum three way cock (15) do not connect vacuum tank the first valve (10) and vacuum tank the second valve (9), vacuum tank the second valve (9) is connected with flash collecting tank (1) by fast twisting, flash collecting tank (1) is connected with mould rising head, and vacuum tank the first valve (10) is connected with storing the second valve (12) by fast twisting；Vacuum tank (6) be provided with the four-way connection connected with tank, four-way connection one end connects pressure vacuum gauge, additionally two ends connect vacuum the 3rd valve (7) and vacuum the 4th valve (5) respectively, vacuum the 3rd valve (7) is by being screwed to connect vacuum pump (8) soon, and vacuum the 4th valve (5) is connected with air by fast twisting；The connector of described flash collecting tank (1) is for sealing structure.
2. one kind utilizes the method that level RTM constant voltage injecting systems carries out constant voltage injection of testing described in claim 1, it is characterised in that step is as follows:
Step 1, mixed with resin and deaeration:
The pipeline of connection geat valve (14) is inserted in resin and the firming agent of the ratio of preparing, open vacuum the 3rd valve (7), vacuum the first valve (10), storing the second valve (12) and geat valve (14), simultaneously close off vacuum the 4th valve (5), vacuum the second valve (9) and storing the first valve (11)；Then vacuum pump is started, by vacuum tank (6) and storage tank (13) evacuation so that the resin after being pre-mixed and firming agent are inhaled in storage tank by geat valve (14) under suction function；
Suction closes geat valve (14) after completing, when in storage tank (13), vacuum reaches production engineering specifications and maintains 15-20min and carry out vacuum defoamation；
Step 2, complete vacuum defoamation after carry out mould evacuation:
Close geat valve (14), by geat valve (14), storage tank (13) is connected with mold gate, close storing the second valve (12) and vacuum the first valve (10), open vacuum the second valve (9) simultaneously, vacuum pump continues evacuation, until flash collecting tank (1) interior vacuum reaches production engineering specifications and maintains 10-15min and make mould complete evacuation；
Step 3, resin are injected:
After mould completes evacuation, start air compressor, regulate the stable numerical value at production engineering specifications of pressure output value of air compressor, open storing the first valve (11) and geat valve (14), resin just enters in mould at constant pressure flows by action, complete constant voltage injection, continue in injection process mould evacuation.
3. the method that experiment level RTM constant voltage injecting systems carries out constant voltage injection according to claim 1, it is characterised in that:
After constant voltage has been injected, carrying out the cleaning of storage tank, provide for the injection of constant voltage next time and prepare, cleaning step is:
Step (1), injected after, the pipeline being connected with geat is extracted, provides pressure to be discharged with firming agent by resin by air compressor in the residual resin in storage tank and firming agent；
Step (2), closedown geat valve (14), by geat valve (14), storage tank (13) is connected with the jar of resin scavenger specially, open vacuum the 3rd valve (7), vacuum the first valve (10), storing the second valve (12) and geat valve (14), simultaneously close off vacuum the 4th valve (5), vacuum the second valve (9) and storing the first valve (11)；Then start vacuum pump, abluent is sucked in storage tank；
Step (3), unlatching storing the first valve (11) also close storing the second valve (12), start air compressor and are discharged from storage tank by resin scavenger specially；
Repeat step 2-step 3 many times, until not having resin in storage tank and valve is that cleaning completes.
4. the method that experiment level RTM constant voltage injecting systems carries out constant voltage injection according to claim 3, it is characterised in that:
Described repetition step 2-step 3 is for many times 2～3 times.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067131.0A CN105711113B (en) | 2016-01-30 | 2016-01-30 | A kind of method for testing level RTM constant pressures injecting systems and constant pressure injection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610067131.0A CN105711113B (en) | 2016-01-30 | 2016-01-30 | A kind of method for testing level RTM constant pressures injecting systems and constant pressure injection |
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| CN105711113A true CN105711113A (en) | 2016-06-29 |
| CN105711113B CN105711113B (en) | 2017-10-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057737A (en) * | 2019-04-10 | 2019-07-26 | 中国科学院地质与地球物理研究所 | It is a kind of for providing the fluid pressure supply device and method of constant pressure |
| KR20200035640A (en) * | 2018-09-27 | 2020-04-06 | (주)세원물산 | Vacuum and resin supplying sub-device for resin transfer molding and RTM complex mold system with the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513663A (en) * | 2003-06-11 | 2004-07-21 | 哈尔滨工业大学 | Ultrasonic processing resin transfer moulding method and used apparatus |
| CN1921996A (en) * | 2004-02-17 | 2007-02-28 | 东丽株式会社 | Rtm molding method and device |
| CN101269548A (en) * | 2008-05-09 | 2008-09-24 | 天津工业大学 | Device and method for preparing composite material with resin transfer molding technique |
| CN101439570A (en) * | 2008-12-26 | 2009-05-27 | 北京玻钢院复合材料有限公司 | Re-injection process and equipment for poured resin adhesive solution when discharging air bubbles during composite material RTM molding process |
| CN104070686A (en) * | 2014-05-28 | 2014-10-01 | 航天材料及工艺研究所 | High-temperature RTM (resin transfer molding) integrated molding equipment |
-
2016
- 2016-01-30 CN CN201610067131.0A patent/CN105711113B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513663A (en) * | 2003-06-11 | 2004-07-21 | 哈尔滨工业大学 | Ultrasonic processing resin transfer moulding method and used apparatus |
| CN1921996A (en) * | 2004-02-17 | 2007-02-28 | 东丽株式会社 | Rtm molding method and device |
| CN101269548A (en) * | 2008-05-09 | 2008-09-24 | 天津工业大学 | Device and method for preparing composite material with resin transfer molding technique |
| CN101439570A (en) * | 2008-12-26 | 2009-05-27 | 北京玻钢院复合材料有限公司 | Re-injection process and equipment for poured resin adhesive solution when discharging air bubbles during composite material RTM molding process |
| CN104070686A (en) * | 2014-05-28 | 2014-10-01 | 航天材料及工艺研究所 | High-temperature RTM (resin transfer molding) integrated molding equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200035640A (en) * | 2018-09-27 | 2020-04-06 | (주)세원물산 | Vacuum and resin supplying sub-device for resin transfer molding and RTM complex mold system with the same |
| CN110057737A (en) * | 2019-04-10 | 2019-07-26 | 中国科学院地质与地球物理研究所 | It is a kind of for providing the fluid pressure supply device and method of constant pressure |
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| CN105711113B (en) | 2017-10-10 |
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