CN209614192U - A kind of counter-pressure casting machine - Google Patents
A kind of counter-pressure casting machine Download PDFInfo
- Publication number
- CN209614192U CN209614192U CN201822145151.2U CN201822145151U CN209614192U CN 209614192 U CN209614192 U CN 209614192U CN 201822145151 U CN201822145151 U CN 201822145151U CN 209614192 U CN209614192 U CN 209614192U
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- mold
- plate
- movable plate
- counter
- casting machine
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- 238000005266 casting Methods 0.000 title claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 210000002683 foot Anatomy 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000010791 quenching Methods 0.000 claims description 14
- 230000000171 quenching effect Effects 0.000 claims description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 6
- 239000000498 cooling water Substances 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a kind of counter-pressure casting machines, seal closure is provided on the outside of mold, the upper end of mold is provided with movable plate, top plate is provided with above movable plate, lifting support column is provided at four end feets of movable plate and top plate, vertical lifting piston is provided in the middle part of movable plate and top plate, the upper end of top plate is provided with hydraulic cylinder to control lifting piston, and the two sides of lifting piston are provided with wedge iron lock post and anti-fall column；The utility model is cooperated to go up and down, lock movable plate by lifting support column, lifting piston, wedge iron lock post and anti-fall column, to improve stability when movable plate displacement, the utility model structure is simple and convenient to operate, substantially increases the casting effect and efficiency of Al-alloy parts, the cooling water of cooling mold can be repeatedly circulated simultaneously, realize resource reutilization.
Description
Technical field
The utility model relates to Al-alloy parts Casting Equipment technical field more particularly to a kind of counter-pressure casting machines.
Background technique
Counter-pressure casting is also known as Counter pressure casting, pressure difference casting.It is casting mold outer cover sealing on the basis of low pressure casting
Cover, while compressed air is passed through into holding furnace and seal closure, but the pressure in holding furnace is slightly higher, make in holding furnace in crucible
Molten metal fills casting mold through stalk under the action of pressure difference, and crystallizes under stress.It is tied under low pressure casting and pressure
The combination of brilliant two kinds of casting methods.
The internal soundness of some casting requires high, it is desirable to crystallize at a higher pressure, but knot when general low pressure casting
Brilliant pressure cannot be too big.Thus develop pressure differential method low pressure casting.Its technical process is that holding furnace and mold whole progress is close
Envelope, is passed through pressure compared with the compressed air as large as 500kPa, at this moment due to casting mold and the pressure phase inside holding furnace in seal closure
Deng molten metal will not rise, and 50kPa pressure is then supplemented into holding furnace, and the molten metal in holding furnace in crucible will rise
Packed type chamber, molten metal in final casting mold crystallization and freezing under high pressure.This method makes casting obtain finer and close crystallization group
It knits, improves the mechanical performance of casting.
A kind of counter-pressure casting machine as disclosed in publication number CN 103978183 discloses only hydraulic cylinder band dynamic model
Tool lifting, but be easy to be opened accidentally in casting process mesohigh seal chamber, hydraulic cylinder pressure maintaining can cause to cast because of unexpected release
Die cavity cracks so that molten aluminum is splashed, to cause damages, this lacks effective balancing device just to guarantee the casting of Al-alloy parts
Accurate control therefore solve the problems, such as this kind of be particularly important.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of counter-pressure casting machine, by be provided with movable plate come
The movement of driven mold, and cooperated by lifting support column, lifting piston, wedge iron lock post and anti-fall column to go up and down, lock movement
Plate, to improve the stability when displacement of movable plate upper mold.
In order to realize above-mentioned technical proposal, the utility model provides a kind of counter-pressure casting machine, include fixed frame, in
Between plate, holding furnace and mold, be provided with intermediate plate in the middle part of the fixed frame, used in the pedestal that is just provided below of intermediate plate
Holding furnace is placed, is provided with mold above, vertical stalk is provided on the intermediate plate, the lower end of the stalk is logical
To holding furnace, upper end is led in the die cavity of mold, and seal closure is provided on the outside of mold, on the holding furnace and mold
It is provided with gas transmission road, by gas transmission road come to qi of chong channel ascending adversely pressure is carried out in holding furnace and die cavity, the upper end of the mold is provided with movement
Plate is provided with top plate above the movable plate, is provided with lifting support column at four end feets of the movable plate and top plate,
Vertical lifting piston is provided in the middle part of the movable plate and top plate, the upper end of the top plate is provided with hydraulic cylinder to control
Lifting piston processed, the two sides of the lifting piston are provided with wedge iron lock post and anti-fall column.
Further improvement lies in that: positioning support column, the pedestal and movable plate are provided between the pedestal and intermediate plate
Between be also equipped with positioning support column.
Further improvement lies in that: the junction of the mold and intermediate plate is provided with sealing seat board.
Further improvement lies in that: the lower end of the lifting piston, wedge iron lock post and anti-fall column is fixed with connecting plate, in institute
The knockout rod for being provided with hydraulic cylinder control on connecting plate is stated, is provided with displacement sensor by the connecting plate.
Further improvement lies in that: safe lock set is provided in the middle part of the lifting piston, while also in the wedge iron
The lower part of lock post is provided with safe lock set, and is provided with horizontal synchronization on the safe lock set of two wedge iron lock posts
Frame is provided with connecting rod in the synchronizing frame.
Further improvement lies in that: a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the mold
Surrounding be provided with disengaging through-hole, be provided with pipeline on the disengaging through-hole, the pipeline includes water route and gas circuit, by described
Water route or gas circuit to carry out mold aqueous vapor cooling, and the cooling centralized control cabinet of concentration and water treatment case are successively led in the water route,
The water route is connected on water treatment case, and the gas circuit also leads to cooling centralized control cabinet, be provided in the mold pressure and
Temperature sensor, from pressure and temperature sensor in real time to the controller transmission data cooled down in centralized control cabinet, to improve certainly
The accuracy and stability of dynamicization control, the pressure and temperature sensor are connect with cooling centralized control cabinet.
Further improvement lies in that: it is provided with splicing frame beside the fixed frame, is provided with and quenches on the splicing frame
Fire-box is provided with Liang Zhou robot by the quenching box, catches the object under die cavity by rotating the splicing hand of Liang Zhou robot
Material, then splicing subordinate, which is down in quenching box, is quenched.
Further improvement lies in that: the equipment surrounding can be set protective frame and overhaul for worker.
Further improvement lies in that: it is provided with connecting lock between the intermediate plate and lifting support column, is controlled by cylinder connection
Lock is to lock the movement of intermediate plate.
The beneficial effects of the utility model are: the utility model is led molten aluminum by stalk using differential pressure from holding furnace
Enter and formed into mold, mold is fixed under movable plate, lifting displacement is done come driven mold by movable plate, wherein by
It goes up and down support column, lifting piston and the cooperation of wedge iron lock post and carrys out lifting moving plate, while can guarantee the flat of movable plate upper mold
Weigh stability, to greatly improve casting effect, prevents movable plate by being provided with anti-fall column and safe lock set thereon
Falling in lifting process, after movable plate is promoted, the safe lock set on fall arrest column is tensed by mechanical performance to be moved
Movable plate fall arrest, rather than just by lifting piston；By being provided with wedge iron lock post, mold cavity pressure can be made to pass through wedge iron
Lock post and non-fully reach 80 tons by lifting piston pressure maintaining, adding 40 tons of lifting piston pressure maintaining, amounting to 120 tons, it is good
Good pressure maintaining not only avoids completely with bring accident when hydraulic pressure maintaining accident release, also accurately controls for pressure and provides object
Reason ensures；And it can achieve automatic blanking, splicing, transhipment and quenching cooling by being provided with Liang Zhou robot and quenching box
Effect, improving equipment automatization level improves the working condition of worker, and the utility model structure is simple and convenient to operate, greatly
The casting effect and efficiency of Al-alloy parts are improved greatly, while the cooling water of cooling mold can be repeatedly circulated, and be realized
Resource reutilization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the local structural graph of the utility model.
Fig. 3 is the die structure dwg of the utility model.
Fig. 4 is mobile mechanism's schematic diagram of the utility model.
Fig. 5 is mobile mechanism's detail view of the utility model.
Wherein: 1- fixed frame, 2- intermediate plate, 3- holding furnace, 4- mold, 5- pedestal, 6- stalk, 7- seal closure, 8-
Movable plate, 9- top plate, 10- lifting support column, 11- lifting piston, 12- hydraulic cylinder, 13- wedge iron lock post, the anti-fall column of 14-,
15- positioning support column, 16- sealing seat board, 17- connecting plate, 18- knockout rod, 19- displacement sensor, the safe lock set of 20-,
21- synchronizing frame, 22- connecting rod, 23- pass in and out through-hole, 24- splicing frame, 25- quenching box, 26- Liang Zhou robot, 27- connecting lock.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is further described below in conjunction with embodiment,
The present embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.
As Figure 1-Figure 5, this implementation column provides a kind of counter-pressure casting machine, includes fixed frame 1, intermediate plate 2, protects
The middle part of warm furnace 3 and mold 4, the fixed frame 1 is provided with intermediate plate 2, and pedestal is just provided below in the intermediate plate 2
5 are used to place holding furnace 3, and mold 4 is provided with above, and vertical stalk 6, the liter are provided on the intermediate plate 2
Lead to holding furnace 3 for the lower end of liquid pipe 6, and upper end is led in the die cavity of mold 4, and the outside of mold 4 is provided with seal closure 7, institute
It states and is provided with gas transmission road on holding furnace and mold, by gas transmission road come to being inflated pressure, the mould in holding furnace and die cavity
The upper end of tool 4 is provided with movable plate 8, and the top of the movable plate 8 is provided with top plate 9, in the movable plate 8 and the top plate 9
Four end feets at be provided with lifting support column 10, the middle part of top plate 9 is provided with vertical lifting piston in the movable plate 8
11, the upper end of the top plate 9 is provided with hydraulic cylinder 12 to control the lifting of lifting piston, and the two sides of the lifting piston 11 are set
It is equipped with wedge iron lock post 13 and anti-fall column 14.
Positioning support column 15 is provided between the pedestal 5 and the intermediate plate 2, between the pedestal 5 and movable plate 8
It is provided with positioning support column 15.The junction of the mold 4 and intermediate plate 2 is provided with sealing seat board 16.The lifting piston 11,
The lower end of wedge iron lock post 13 and anti-fall column 14 is fixed with connecting plate 17, is provided with hydraulic cylinder control on the connecting plate 17
Knockout rod 18, be provided with displacement sensor 19 by the connecting plate 17.The middle part of the lifting piston 11 is provided with safety
Lock set 20, while the lower part of the wedge iron lock post 13 being also provided with safe lock set 20, and in two wedge iron lock posts
Safe lock set 20 on be provided with horizontal synchronizing frame 21, be provided with connecting rod 22 in the synchronizing frame 21.The mold 4
Surrounding is provided with disengaging through-hole 23, is provided with pipeline on the disengaging through-hole 23, the pipeline includes water route and gas circuit, passes through institute
It states water route or gas circuit to carry out mold aqueous vapor cooling, the cooling centralized control cabinet of concentration and water process are successively led in the water route
Case, the water route are connected on water treatment case, and the gas circuit also leads to cooling centralized control cabinet, are provided with pressure in the mold
And temperature sensor, the pressure and temperature sensor are connect with cooling centralized control cabinet.The side of the fixed frame 1 is arranged
There is splicing frame 24, quenching box 25 is provided on the splicing frame 24, is provided with Liang Zhou robot 26 by the quenching box 25, leads to
The splicing hand of rotation Liang Zhou robot is crossed to catch the material under die cavity, then splicing subordinate, which is down in quenching box, is quenched.
When work, mold 4 and holding furnace 3 are subjected to molding debugging first, the region where mold 4 is epicoele, holding furnace 3
The region at place is cavity of resorption, carries out pressurising to epicoele and cavity of resorption after debugging, and then upper and lower cavity carries out gas circuit separation, then right
Cavity of resorption carries out pneumatic compression, and is formed so that the molten aluminum in holding furnace 3 is imported into the die cavity of mold 4 by stalk 6, when
After Al-alloy parts solidification, cooling water is inputted into mold 4 by the road that intakes and is cooled down, is then opened, that is, pass through
Movable plate 8, which rises, carrys out the rising of driven mold 4, and the rotation of twin shaft robot 26 at this time is to the lower section of mold cavity, by connecting plate 17
Knockout rod 18 material is exported, to fall in twin shaft robot 26, and then material decline is driven by twin shaft robot
It is handled into quenching box 25, and the utility model is by being provided with lifting support column 10, lifting piston 11 and wedge iron lock
Only column 13 is come stability of equilibrium when guaranteeing that movable plate upper mold is gone up and down, to greatly improve casting effect, the intermediate plate 2 and liter
It is provided with connecting lock between descending branch dagger 10, is controlled by cylinder connection lock to lock to the movement of intermediate plate 2.By connecting lock
27 control intermediate plates whether with one lifting of movable plate, when position locks, intermediate plate and movable plate pass through on raise-lower hydraulic oil cylinder
Lower movement, use when for replacing holding furnace, when connecting lock locks, it is motionless that movable plate moves up and down intermediate plate, for casting
When mould open/close.
The utility model is equipped with pressure sensor and proportioning valve in upper and lower cavity, realizes the number to upper and lower cavity pressure
Change control, the accurate control of the speed of molten metal when having reached the speed of pressurization and having filled type.
The utility model cools down to upper/lower die using 96 water route gas circuits, and each water route gas circuit has control
Valve and automation control are integrated, realize the control of molten metal setting time, when improving different casting difference solidification coolings
Between setting it is horizontal, improve the flexible production ability of casting machine.
The utility model is formed molten aluminum from importeding into mold in holding furnace by stalk using differential pressure, by mould
Tool is fixed under movable plate, lifting displacement is done by movable plate come driven mold, wherein by lifting support column, lifting piston and carving
The cooperation of iron lock post carrys out lifting moving plate, while can guarantee the stability of equilibrium of movable plate upper mold, to greatly improve casting
Effect is fallen by being provided with anti-fall column and safe lock set thereon prevent movable plate in uphill process；Pass through
It is provided with wedge iron lock post, mold cavity pressure can be made non-fully to reach 80 by lifting piston pressure maintaining by wedge iron lock post
Ton is adding 40 tons of lifting piston pressure maintaining, amounts to 120 tons, good pressure maintaining not only avoids completely unexpected with hydraulic pressure maintaining
Bring is unexpected when release, also accurately controls for pressure and provides physics guarantee；And by being provided with Liang Zhou robot and quenching
Fire-box can achieve the effect of automatic blanking, splicing, transhipment and quenching cooling, and improving equipment automatization level improves worker
Working condition, the utility model structure is simple and convenient to operate, substantially increases the casting effect and efficiency of Al-alloy parts, together
When cooling mold cooling water can be repeatedly circulated, realize resource reutilization.
Claims (8)
1. a kind of counter-pressure casting machine includes fixed frame (1), intermediate plate (2), holding furnace (3) and mold (4), the fixation
It is provided with intermediate plate (2) in the middle part of frame (1), is used to place heat preservation in be just provided below pedestal (5) of the intermediate plate (2)
Furnace (3), and mold (4) are provided with above, vertical stalk (6), the stalk are provided on the intermediate plate (2)
(6) holding furnace (3) are led in lower end, and upper end is led in the die cavity of mold (4), and are provided with seal closure on the outside of mold (4)
(7), it is provided with gas transmission road on the holding furnace and mold, by gas transmission road come to being inflated pressure in holding furnace and die cavity,
It is characterized by: the upper end of the mold (4) is provided with movable plate (8), top plate (9) are provided with above the movable plate (8),
Lifting support column (10) is provided at four end feets of the movable plate (8) and the top plate (9), in the movable plate (8)
The lifting piston (11) vertical with being provided in the middle part of top plate (9), the upper end of the top plate (9) are provided with hydraulic cylinder (12)
The lifting of lifting piston is controlled, the two sides of the lifting piston (11) are provided with wedge iron lock post (13) and anti-fall column (14).
2. a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the pedestal (5) and the intermediate plate (2)
Between be provided with positioning support column (15), be also equipped with positioning support column (15) between the pedestal (5) and movable plate (8).
3. a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the company of the mold (4) and intermediate plate (2)
The place of connecing is provided with sealing seat board (16).
4. a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the lifting piston (11), wedge iron locking
The lower end of column (13) and anti-fall column (14) is fixed with connecting plate (17), is provided with hydraulic cylinder control on the connecting plate (17)
Knockout rod (18), is provided with displacement sensor (19) by the connecting plate (17).
5. a kind of counter-pressure casting machine according to claim 4, it is characterised in that: set in the middle part of the lifting piston (11)
Safe lock set (20) are equipped with, while being also provided with safe lock set (20) in the lower part of the wedge iron lock post (13), and
Horizontal synchronizing frame (21) are provided on the safe lock set (20) of two wedge iron lock posts, are arranged on the synchronizing frame (21)
There are connecting rod (22).
6. a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the surrounding of the mold (4) be provided with into
Through-hole (23) out, are provided with pipeline on the disengaging through-hole (23), and the pipeline includes water route and gas circuit, by the water route or
Gas circuit to carry out mold aqueous vapor cooling, and the cooling centralized control cabinet of concentration and water treatment case, the water are successively led in the water route
Road is connected on water treatment case, and the gas circuit also leads to cooling centralized control cabinet, and pressure and temperature biography is provided in the mold
Sensor, the pressure and temperature sensor are connect with cooling centralized control cabinet.
7. a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the side of the fixed frame (1) is arranged
There are splicing frame (24), be provided with quenching box (25) on the splicing frame (24), is provided with two axis machines by the quenching box (25)
Device people (26) catches the material under die cavity by rotating the splicing hand of Liang Zhou robot, and then splicing subordinate is down to quenching box
In quenched.
8. a kind of counter-pressure casting machine according to claim 1, it is characterised in that: the intermediate plate (2) and lifting support column
(10) it is provided with connecting lock (27) between, is controlled by cylinder connection lock to lock to the movement of intermediate plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822145151.2U CN209614192U (en) | 2018-12-20 | 2018-12-20 | A kind of counter-pressure casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822145151.2U CN209614192U (en) | 2018-12-20 | 2018-12-20 | A kind of counter-pressure casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209614192U true CN209614192U (en) | 2019-11-12 |
Family
ID=68446404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822145151.2U Withdrawn - After Issue CN209614192U (en) | 2018-12-20 | 2018-12-20 | A kind of counter-pressure casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209614192U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434075A (en) * | 2018-12-20 | 2019-03-08 | 芜湖戎征达伺服驱动技术有限公司 | A kind of counter-pressure casting machine |
| CN113275543A (en) * | 2021-05-25 | 2021-08-20 | 哈尔滨工业大学 | Counter-gravity filling cabin for large-size complex amorphous alloy component |
| CN113290233A (en) * | 2021-05-25 | 2021-08-24 | 哈尔滨工业大学 | Movable plate assembly for counter-gravity filling cabin |
| CN116237494A (en) * | 2023-05-08 | 2023-06-09 | 中信戴卡股份有限公司 | Differential pressure casting machine |
-
2018
- 2018-12-20 CN CN201822145151.2U patent/CN209614192U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434075A (en) * | 2018-12-20 | 2019-03-08 | 芜湖戎征达伺服驱动技术有限公司 | A kind of counter-pressure casting machine |
| CN109434075B (en) * | 2018-12-20 | 2024-03-12 | 芜湖戎征达伺服驱动技术有限公司 | Differential pressure casting machine |
| CN113275543A (en) * | 2021-05-25 | 2021-08-20 | 哈尔滨工业大学 | Counter-gravity filling cabin for large-size complex amorphous alloy component |
| CN113290233A (en) * | 2021-05-25 | 2021-08-24 | 哈尔滨工业大学 | Movable plate assembly for counter-gravity filling cabin |
| CN113275543B (en) * | 2021-05-25 | 2022-06-14 | 哈尔滨工业大学 | Counter-gravity filling cabin for large-size complex amorphous alloy component |
| CN116237494A (en) * | 2023-05-08 | 2023-06-09 | 中信戴卡股份有限公司 | Differential pressure casting machine |
| CN116237494B (en) * | 2023-05-08 | 2023-09-19 | 中信戴卡股份有限公司 | Differential pressure casting machine |
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