CN112935060A - Internal high-pressure forming device for stainless steel pipe fitting and control system thereof - Google Patents
Internal high-pressure forming device for stainless steel pipe fitting and control system thereof Download PDFInfo
- Publication number
- CN112935060A CN112935060A CN202110095363.8A CN202110095363A CN112935060A CN 112935060 A CN112935060 A CN 112935060A CN 202110095363 A CN202110095363 A CN 202110095363A CN 112935060 A CN112935060 A CN 112935060A
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- Prior art keywords
- pipe fitting
- hydraulic cylinder
- stainless steel
- pipeline
- pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
Abstract
The invention relates to the technical field of stainless steel pipe fitting forming, and discloses an internal high-pressure forming device for a stainless steel pipe fitting, which comprises a base, a guide pillar, a supporting plate, a telescopic hydraulic cylinder, a fixing plate, a pipe fitting moving die, a pipe fitting fixed die, a supporting seat, a feeding head, a water supply system, a recovery system, a hydraulic cylinder and a hydraulic system, wherein the base is provided with a guide pillar; the guide posts are four and are installed on the base, the supporting plate is installed at the top end of each guide post, and the telescopic hydraulic cylinder is installed at the top end of the supporting plate. This stainless steel pipe's interior high pressure forming device and control system thereof, pipe fitting movable mould and pipe fitting cover half compound die are with the pipe fitting suppression inside the mould, make the pneumatic cylinder drive the feed head and remove and utilize the feed head to seal the inside pipe fitting of mould under hydraulic system's drive, and cooperation water supply system constantly channels into liquid in to the feed head for hydraulic pressure grow in the pipe fitting leads to the pipe fitting inflation to be out of shape, and at the shaping of mould die cavity.
Description
Technical Field
The invention relates to the technical field of stainless steel pipe fitting forming, in particular to an internal high-pressure forming device of a stainless steel pipe fitting and a control system thereof.
Background
Stainless steel is short for stainless acid-resistant steel, and steel grade which is resistant to weak corrosive media such as air, steam and water or has stainless property is called stainless steel; while the steel grade resistant to corrosion by chemically corrosive media is called acid-resistant steel, pipe fittings made of stainless steel are generally used in various fields.
The internal high pressure forming is also called hydraulic forming or hydraulic forming, and is a method which uses liquid as a forming medium and presses a pipe blank into a die cavity by internal pressurization and axial force application and supplement so as to form a required workpiece. For parts with curved axes, the tube blank needs to be pre-bent to approximate the shape of the part and then press-formed.
The processing of the stainless steel pipe fitting can be carried out in an internal high-pressure forming mode, the subsequent machining amount and the assembly welding workload can be reduced, the strength and the rigidity of the member are improved, the fatigue strength is improved due to the reduction of welding spots, compared with a punching welding part, the material utilization rate is 95% -98%, the production cost and the die cost are reduced by 30%, and therefore the internal high-pressure forming device and the control system of the stainless steel pipe fitting are provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an internal high-pressure forming device of a stainless steel pipe fitting and a control system thereof.
The invention provides the following technical scheme: the internal high-pressure forming device for the stainless steel pipe fitting comprises a base, a guide pillar, a supporting plate, a telescopic hydraulic cylinder, a fixing plate, a pipe fitting moving die, a pipe fitting fixed die, a supporting seat, a feeding head, a water supply system, a recovery system, a hydraulic cylinder and a hydraulic system;
the four guide posts are arranged on the base, the supporting plate is arranged at the top end of each guide post, the telescopic hydraulic cylinder is arranged at the top end of the supporting plate, a moving shaft of the telescopic hydraulic cylinder penetrates through the supporting plate and is connected with the fixed plate, four corners of the fixed plate are connected with the four guide posts in a sliding mode, the pipe fitting moving die is arranged at the bottom end of the fixed plate, and the pipe fitting fixed die is arranged at the top of the base;
the hydraulic support comprises a base, and is characterized in that two support seats and two hydraulic cylinders are arranged at the top of the base, the interfaces of the hydraulic cylinders are connected with a hydraulic system, the bottoms of the support seats are connected with the base in a sliding manner through slide rails, displacement sensors are mounted on the support seats, the output shafts of the hydraulic cylinders are connected with the support seats, feeding heads are mounted on the two support seats, and a water supply system is mounted at one end of one feeding head;
the inside of base is equipped with recovery system, and recovery system is connected with water supply system.
Preferably, one side of the feeding head facing the fixed die of the pipe fitting is provided with a sealing sleeve, one end of one feeding head is connected with a water supply system, and the other feeding head is in a sealing design.
Preferably, the hydraulic system comprises an oil tank, an oil pump, an overflow valve, a throttle valve and an electromagnetic directional valve, the oil pump is connected with the oil tank through a pipeline, the throttle valve is connected with the oil pump through a pipeline, the electromagnetic directional valve is connected with the throttle valve through a pipeline, two interfaces on the hydraulic cylinder are connected with the electromagnetic directional valve through a pipeline, the electromagnetic directional valve is connected with the oil tank through a pipeline, one end of the overflow valve is connected with the oil tank through a pipeline, and the other end of the overflow valve is connected with the pipeline between the oil pump and the throttle valve through a pipeline.
Preferably, water supply system includes water tank, water pump, check valve and backwash pump, the water tank passes through the pipeline and is connected with the water pump, and the water pump passes through the pipeline and is connected with the check valve, the check valve passes through the pipeline and is connected with the feed head, the water tank passes through the pipeline and is connected with the backwash pump, and the backwash pump passes through the pipeline and is connected with recovery system.
Preferably, the recovery system is by stand pipe, collecting pipe, pressure manifold and discharge pipe, the collecting pipe sets up the multiunit and lays in the inside of base in parallel, the stand pipe sets up a plurality ofly and vertically lays in the inside of base, and the bottom and the collecting pipe intercommunication of stand pipe, the one end intercommunication of collecting pipe and a plurality of collecting pipe, the one end and the pressure manifold intercommunication of discharge pipe, and the other end of discharge pipe extend to the base outside and with the pipe connection on the backwash pump.
A control system for an internal high-pressure forming device of a stainless steel pipe fitting, the operation of a telescopic hydraulic cylinder is controlled, a pipe fitting movable die is separated from a pipe fitting fixed die, a stainless steel pipe is placed in a cavity of the pipe fitting fixed die, the pipe fitting movable die and the pipe fitting fixed die are matched under the control of the telescopic hydraulic cylinder, oil is led into a hydraulic cylinder in a hydraulic system, the hydraulic cylinder is operated and drives a supporting seat to move, a feeding head on the hydraulic cylinder extends into the pipe fitting movable die and the pipe fitting fixed die and seals two ends of the stainless steel pipe, then the hydraulic system stops oil conveying, the hydraulic cylinder is locked, liquid is led into the feeding head continuously by a matched recovery system, the liquid is pressurized in the stainless steel pipe and expands in the cavity of the stainless steel pipe to be formed, and the liquid drops on a base and is led into a water supply system to be reused by the recovery system.
Preferably, the water pump runs, liquid in the water tank flows to the feeding head through the pipeline and the one-way valve, the dripped liquid is accumulated on the base and collected by the recovery system, and the dripped liquid is reintroduced into the water tank under the drainage of the reflux pump for recycling.
Preferably, the oil pump operates, oil in the oil tank is guided into one end of the hydraulic cylinder through the pipeline and the throttle valve and the electromagnetic directional valve, so that the piston in the hydraulic cylinder moves, the oil in the other end of the hydraulic cylinder is guided into the oil tank again through the electromagnetic directional valve, the hydraulic cylinder is controlled to move, when the pressure in the pipeline is too high, a part of the oil is discharged through the overflow valve, the pressure of the pipeline is maintained, and stable output is provided for the hydraulic cylinder.
Compared with the prior art, the invention has the following beneficial effects:
this stainless steel pipe's interior high pressure forming device and control system thereof, the pipe fitting movable mould is suppressed the pipe fitting inside the mould with pipe fitting cover half compound die, make the pneumatic cylinder drive the stub bar and carry out the accurate removal under hydraulic system's drive, and make the stub bar seal the inside pipe fitting of mould, realize the sealed process of pipe fitting, cooperation water supply system is constantly leading-in liquid in to the stub bar, make the hydraulic pressure grow in the pipe fitting, lead to pipe fitting expansion deformation, and shaping in the mould die cavity, so realize the water supply process, deuterogamy recovery system, retrieve the liquid that drips, realize object cyclic utilization, compare with the traditional stamping that needs multichannel process, the device only needs one step just can shape the same part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the water supply system of the present invention;
FIG. 3 is a schematic diagram of the hydraulic system of the present invention;
FIG. 4 is a schematic diagram of the recycling system of the present invention.
In the figure: 1. a base; 2. a guide post; 3. a support plate; 4. a telescopic hydraulic cylinder; 5. a fixing plate; 6. a pipe fitting moving die; 7. fixing a pipe fitting; 8. a supporting seat; 9. a feeding head; 10. a water supply system; 101. a water tank; 102. a water pump; 103. an overflow valve; 104. a reflux pump; 11. a recovery system; 111. a guide tube; 112. a collection pipe; 113. a header pipe; 114. a discharge pipe; 12. a hydraulic cylinder; 13. a hydraulic system; 131. an oil tank; 132. an oil pump; 133. an overflow valve; 134. a throttle valve; 135. an electromagnetic directional valve.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure, and in order to keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known parts of the disclosure are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.
Referring to fig. 1-4, the internal high pressure forming device for stainless steel pipes comprises a base 1, a guide post 2, a support plate 3, a telescopic hydraulic cylinder 4, a fixed plate 5, a pipe moving die 6, a pipe fixed die 7, a support seat 8, a feeding head 9, a water supply system 10, a recovery system 11, a hydraulic cylinder 12 and a hydraulic system 13;
four guide posts 2 are arranged and installed on the base 1, the supporting plate 3 is installed at the top end of each guide post 2, the telescopic hydraulic cylinder 4 is installed at the top end of the supporting plate 3, a moving shaft of the telescopic hydraulic cylinder 4 penetrates through the supporting plate 3 and is connected with the fixed plate 5, four corners of the fixed plate 5 are in sliding connection with the four guide posts, the pipe fitting moving die 6 is installed at the bottom end of the fixed plate 5, and the pipe fitting fixed die 7 is installed at the top of the base 1;
the top of the base 1 is provided with two supporting seats 8 and two hydraulic cylinders 12, the interfaces of the hydraulic cylinders 12 are connected with a hydraulic system 13, the bottoms of the supporting seats 8 are connected with the base 1 in a sliding manner through sliding rails, the supporting seats 8 are provided with displacement sensors, the output shafts of the hydraulic cylinders 12 are connected with the supporting seats 8, the two supporting seats 8 are both provided with feeding heads 9, and one end of one feeding head 9 is provided with a water supply system 10;
a recycling system 11 is arranged inside the base 1, and the recycling system 11 is connected with a water supply system 10.
One side of the feeding head 9 facing the pipe fitting fixed die 7 is provided with a sealing sleeve, one end of one feeding head 9 is connected with a water supply system 10, and the other feeding head 9 is designed in a sealing mode.
The hydraulic system 13 comprises an oil tank 131, an oil pump 132, an overflow valve 133, a throttle valve 134 and an electromagnetic directional valve 135, wherein the oil pump 132 is connected with the oil tank 131 through a pipeline, the throttle valve 134 is connected with the oil pump 132 through a pipeline, the electromagnetic directional valve 135 is connected with the throttle valve 134 through a pipeline, two interfaces on the hydraulic cylinder 12 are connected with the electromagnetic directional valve 135 through a pipeline, the electromagnetic directional valve 135 is connected with the oil tank 131 through a pipeline, one end of the overflow valve 133 is connected with the oil tank 131 through a pipeline, and the other end of the overflow valve 133 is connected with the pipeline between the oil pump 132 and the throttle valve 134 through.
The water supply system 10 comprises a water tank 101, a water pump 102, a one-way valve 103 and a return pump 104, the water tank 101 is connected with the water pump 102 through a pipeline, the water pump 102 is connected with the one-way valve 103 through a pipeline, the one-way valve 103 is connected with the feeding head 9 through a pipeline, the water tank 101 is connected with the return pump 104 through a pipeline, and the return pump 104 is connected with the recovery system 11 through a pipeline.
The recycling system 11 is composed of a guide pipe 111, a collecting pipe 112, a collecting pipe 113 and a discharge pipe 114, wherein the collecting pipe 112 is provided with a plurality of groups and is laid in the base 1 in parallel, the guide pipe 111 is provided with a plurality of groups and is vertically laid in the base 1, the bottom end of the guide pipe 111 is communicated with the collecting pipe 112, the collecting pipe 113 is communicated with one ends of the collecting pipes 112, one end of the discharge pipe 114 is communicated with the collecting pipe 113, and the other end of the discharge pipe 114 extends to the outer side of the base 1 and is connected with a pipeline on the reflux pump 104.
The control system of the internal high-pressure forming device for the stainless steel pipe controls the telescopic hydraulic cylinder 4 to operate, so that the pipe fitting moving die 6 is separated from the pipe fitting fixed die 7, the stainless steel pipe is placed in a cavity of the pipe fitting fixed die 7, under the control of the telescopic hydraulic cylinder 4, the pipe fitting moving die 6 and the pipe fitting fixed die 7 are matched, oil is led into the hydraulic cylinder 12 through the hydraulic system 13, the hydraulic cylinder 12 operates and drives the supporting seat 8 to move, the feeding head 9 on the feeding device extends into the pipe fitting moving die 6 and the pipe fitting fixed die 7, the two ends of the stainless steel pipe are sealed, then the hydraulic system 13 stops oil liquid transmission, so that the hydraulic cylinder 12 is locked, liquid is continuously led into the feeding head 9 by matching with the recovery system 11, the liquid is pressurized in the stainless steel pipe, the cavity of the stainless steel pipe is expanded to be molded, and the liquid drips onto the base 1 and is conducted through the recovery system 11 and directed into the water supply system 10 for reuse.
When the water pump 101 operates, liquid in the water tank 101 flows to the feeding head 9 through the pipeline and the check valve 103, the dropped liquid is accumulated on the base 1 and collected through the recovery system 11, and is reintroduced into the water tank 101 under the drainage of the return pump 104 for recycling.
The oil pump 132 is operated to introduce the oil in the oil tank 131 into one end of the hydraulic cylinder 12 through a pipe via the throttle valve 134 and the electromagnetic directional valve 135, so that the piston in the hydraulic cylinder 12 is moved, and the oil in the other end of the hydraulic cylinder 12 is reintroduced into the oil tank 131 through the electromagnetic directional valve 135, thereby controlling the movement of the hydraulic cylinder 12, and when the pressure in the pipe is too high, a part of the oil is discharged through the relief valve 133, maintaining the pipe pressure, and thus providing a stable output to the hydraulic cylinder 12.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (8)
1. A interior high pressure forming device for stainless steel pipe fitting which characterized in that: the device comprises a base (1), a guide pillar (2), a support plate (3), a telescopic hydraulic cylinder (4), a fixed plate (5), a pipe fitting moving die (6), a pipe fitting fixed die (7), a support seat (8), a feeding head (9), a water supply system (10), a recovery system (11), a hydraulic cylinder (12) and a hydraulic system (13);
the four guide posts (2) are arranged on the base (1), the supporting plate (3) is arranged at the top end of each guide post (2), the telescopic hydraulic cylinder (4) is arranged at the top end of the supporting plate (3), a moving shaft of the telescopic hydraulic cylinder (4) penetrates through the supporting plate (3) and is connected with the fixed plate (5), four corners of the fixed plate (5) are in sliding connection with the four guide posts, the pipe fitting moving die (6) is arranged at the bottom end of the fixed plate (5), and the pipe fitting fixed die (7) is arranged at the top of the base (1);
the automatic feeding device is characterized in that two supporting seats (8) and two hydraulic cylinders (12) are arranged at the top of the base (1), the interfaces of the hydraulic cylinders (12) are connected with a hydraulic system (13), the bottoms of the supporting seats (8) are connected with the base (1) in a sliding mode through sliding rails, displacement sensors are mounted on the supporting seats (8), the output shafts of the hydraulic cylinders (12) are connected with the supporting seats (8), feeding heads (9) are mounted on the two supporting seats (8), and a water supply system (10) is mounted at one end of one feeding head (9);
the inside of base (1) is equipped with recovery system (11), and recovery system (11) are connected with water supply system (10).
2. The internal high pressure forming device for stainless steel pipes according to claim 1, wherein: the feeding head (9) is provided with a sealing sleeve towards one side of the fixed pipe fitting (7), one end of one feeding head (9) is connected with a water supply system (10), and the other feeding head (9) is designed to be sealed.
3. The internal high pressure forming device for stainless steel pipes according to claim 1, wherein: the hydraulic system (13) comprises an oil tank (131), an oil pump (132), an overflow valve (133), a throttle valve (134) and an electromagnetic directional valve (135), wherein the oil pump (132) is connected with the oil tank (131) through a pipeline, the throttle valve (134) is connected with the oil pump (132) through a pipeline, the electromagnetic directional valve (135) is connected with the throttle valve (134) through a pipeline, two interfaces on the hydraulic cylinder (12) are connected with the electromagnetic directional valve (135) through a pipeline, the electromagnetic directional valve (135) is connected with the oil tank (131) through a pipeline, one end of the overflow valve (133) is connected with the oil tank (131) through a pipeline, and the other end of the overflow valve (133) is connected with the pipeline between the oil pump (132) and the throttle valve (134) through a pipeline.
4. The internal high pressure forming device for stainless steel pipes according to claim 1, wherein: water supply system (10) include water tank (101), water pump (102), check valve (103) and backwash pump (104), water tank (101) are connected with water pump (102) through the pipeline, and water pump (102) are connected with check valve (103) through the pipeline, check valve (103) are connected with feed head (9) through the pipeline, water tank (101) are connected with backwash pump (104) through the pipeline, and backwash pump (104) are connected with recovery system (11) through the pipeline.
5. The internal high pressure forming device for stainless steel pipes according to claim 1, wherein: recovery system (11) is by stand pipe (111), collecting pipe (112), pressure manifold (113) and discharge pipe (114), collecting pipe (112) set up the inside of multiunit and parallel laying at base (1), stand pipe (111) set up a plurality of and vertical laying in the inside of base (1), and the bottom and collecting pipe (112) intercommunication of stand pipe (111), pressure manifold (113) and the one end intercommunication of a plurality of collecting pipes (112), the one end and the pressure manifold (113) intercommunication of discharge pipe (114), and the other end of discharge pipe (114) extend to the base (1) outside and with the pipe connection on backwash pump (104).
6. The control system for the internal high pressure forming device of the stainless steel pipe fitting according to any one of claims 1 to 5, characterized in that the operation of the telescopic hydraulic cylinder (4) is controlled to separate the movable pipe fitting (6) from the fixed pipe fitting (7), the stainless steel pipe is placed in the cavity of the fixed pipe fitting (7), the movable pipe fitting (6) and the fixed pipe fitting (7) are closed under the control of the telescopic hydraulic cylinder (4), oil is introduced into the hydraulic cylinder (12) by the hydraulic system (13), the hydraulic cylinder (12) is operated to drive the supporting seat (8) to move, the feeding head (9) on the hydraulic cylinder extends into the movable pipe fitting (6) and the fixed pipe fitting (7) and seals both ends of the stainless steel pipe, then the hydraulic system (13) stops oil delivery, the hydraulic cylinder (12) is locked, and the recovery system (11) is matched to continuously introduce liquid into the feeding head (9), the liquid is pressurized in the stainless steel pipe, and the cavity is expanded to be formed, so that the liquid drops on the base (1), passes through the recovery system (11), and is guided into the water supply system (10) for reuse.
7. The control system for the internal high pressure forming device of the stainless steel pipe fitting is characterized in that the water pump (101) operates to enable liquid in the water tank (101) to flow to the feeding head (9) through a pipeline and the check valve (103), and the dropped liquid is accumulated on the base (1) and collected by the recovery system (11) and is reintroduced into the water tank (101) under the drainage of the return pump (104) for recycling.
8. The control system for an internal high pressure forming apparatus for stainless steel pipes according to claim 7, wherein the oil pump (132) is operated to introduce the oil in the oil tank (131) into one end of the hydraulic cylinder (12) through the pipe via the throttle valve (134) and the solenoid directional valve (135) so that the piston in the hydraulic cylinder (12) is moved and the oil in the other end of the hydraulic cylinder (12) is reintroduced into the oil tank (131) through the solenoid directional valve (135), thereby controlling the movement of the hydraulic cylinder (12), and when the pressure in the pipe is excessive, a part of the oil is discharged through the relief valve (133) to maintain the pipe pressure, thereby providing a stable output to the hydraulic cylinder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110095363.8A CN112935060A (en) | 2021-01-25 | 2021-01-25 | Internal high-pressure forming device for stainless steel pipe fitting and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110095363.8A CN112935060A (en) | 2021-01-25 | 2021-01-25 | Internal high-pressure forming device for stainless steel pipe fitting and control system thereof |
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| CN112935060A true CN112935060A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110095363.8A Pending CN112935060A (en) | 2021-01-25 | 2021-01-25 | Internal high-pressure forming device for stainless steel pipe fitting and control system thereof |
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| CN (1) | CN112935060A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625779A (en) * | 2022-10-28 | 2023-01-20 | 合肥学院 | Fiber reinforced composite material sheet forming method and device |
| CN117225973A (en) * | 2023-11-15 | 2023-12-15 | 广东思豪内高压科技有限公司 | Intelligent pressure control method based on internal high-pressure forming machine |
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| CN1257436A (en) * | 1997-04-16 | 2000-06-21 | 科西马国际公司 | High pressure hydroforming press |
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| CN107350330A (en) * | 2017-07-24 | 2017-11-17 | 柳州科瑞科技有限公司 | A kind of left-right asymmetry formula forming high pressure in pipe equipment |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115625779A (en) * | 2022-10-28 | 2023-01-20 | 合肥学院 | Fiber reinforced composite material sheet forming method and device |
| CN117225973A (en) * | 2023-11-15 | 2023-12-15 | 广东思豪内高压科技有限公司 | Intelligent pressure control method based on internal high-pressure forming machine |
| CN117225973B (en) * | 2023-11-15 | 2024-04-09 | 广东思豪内高压科技有限公司 | Intelligent pressure control method based on internal high-pressure forming machine |
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