CN106735043B - The bubble motion physical simulating device and its simulation casting mold of vertical centrifugal casting - Google Patents
The bubble motion physical simulating device and its simulation casting mold of vertical centrifugal casting Download PDFInfo
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- CN106735043B CN106735043B CN201611217824.XA CN201611217824A CN106735043B CN 106735043 B CN106735043 B CN 106735043B CN 201611217824 A CN201611217824 A CN 201611217824A CN 106735043 B CN106735043 B CN 106735043B
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- simulation
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- casting mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
- B22D13/101—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/12—Controlling, supervising, specially adapted to centrifugal casting, e.g. for safety reasons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of bubble motion physical simulating device of vertical centrifugal casting and its simulation casting molds, simulation casting mold includes the simulation mould body for driving and rotating for driven device, simulating mould body includes foundation and transparent part, foundation and transparent part surround the simulation casting type chamber for accommodating simulation fluid, simulate the bubble being additionally provided on casting mold for being passed through bubble into simulation casting type chamber and generate structure.Simulation casting mold rotation is controlled by driving device, reach the simulation effect of centrifugal casting apparatus, and structure is generated by bubble and is passed through bubble into the intracavitary simulation fluid of type, during simulation mould body is rotated with centrifugal turntable, by intuitively observing the real time position of bubble, and analyzed, the characteristics of motion of the bubble in simulation casting mold can be directly obtained, it is relatively simple for structure, and make experimentation cost lower by simulator, visual result can obtain.
Description
Technical field
The present invention relates to a kind of experimental rig, the bubble motion physical analogy more particularly to a kind of vertical centrifugal casting is filled
Set and its simulate casting mold.
Background technique
Gas in casting has a major impact its quality, can be formed in cast-internal after gas inclusions are cooling in casting
Stomata generates destruction to casting quality to significantly reduce the intensity and plasticity of casting.There are three types of there are shapes in casting for gas
State, i.e., 1) with the presence of the form of " solution " or " solid solution ", this is that gas is primarily present form in alloy melt；2) when containing
Amount ultimately forms stomata more than being precipitated and existing in the form of bubble after its solubility；3) in the form of compound or complex state
In the presence of.In filling in type and process of setting for melts of titanium alloy, the state and feature of gas motion directly influence melts of titanium alloy
Whether the generation of middle sbrinkage blowhole defect, play an important role to the final tissue morphology of titanium alloy casting and mechanical property etc..
Under high temperature, titanium and melts of titanium alloy have high chemical activity, and gas has very high in the titanium alloy of fusing
Solubility.When melts of titanium alloy solidification, the temperature of melt declines so that the gas of dissolution in the melt escapes and forms bubble.
With the progress of process of setting, the bubble of formation has some be precipitated to form surface or surface layer air holes in the surface of solids, and some is then
Remain in and forms inner hole in casting.At present very for the research of the vertical centrifugal hot investment casting process hole class defect of titanium alloy
It is more, but most of is all the final position of aerodynamic deficiencies and number quantifier elimination under the conditions of concentrating on centrifugal casting technique, including
Reasonable casting structure and running gate system are designed to improve gas hole defect, affecting laws of the technological parameter to casting hole class defect
And the theory analysis of bubble characteristics of motion under centrifugal field, but this analysis can only rely on centrifugal casting bubble after molding
Position carries out theoretical research, real motion rule of the bubble in casting forming process can not be learnt, it is therefore desirable to design
A kind of simulator emulates the characteristics of motion of the bubble in casting forming process, and then can intuitively observe its final gas
Position is steeped, and then can preferably control the generation of stomata in subsequent.
Summary of the invention
The purpose of the present invention is to provide the bubbles that one kind can intuitively observe the vertical centrifugal casting of bubble motion process
Move physical simulating device；The object of the invention is also to provide a kind of bubble motion physical analogy dresses of vertical centrifugal casting
The simulation casting mold set.
To achieve the above object, the present invention, which simulates the technical solution of casting mold, is:
Casting mold is simulated, the simulation mould body rotated including driving for driven device, simulating mould body includes
Foundation and transparent part, foundation and transparent part surround the simulation casting type chamber for accommodating simulation fluid, simulation
It is additionally provided with the bubble for being passed through bubble into simulation casting type chamber on casting mold and generates structure.
Transparent part is made of one or more the upper and lower folded poly (methyl methacrylate) plate set.
Poly (methyl methacrylate) plate has two pieces, is wherein provided on the poly (methyl methacrylate) plate of lower layer and penetrates through poly (methyl methacrylate) plate plate face up and down
Through hole, foundation includes substrate, the substrate, through hole and upper layer poly (methyl methacrylate) plate collectively form it is described simulation pour
Note type chamber.
It includes the bubble generating chamber being disposed on the substrate that bubble, which generates structure, and the bubble generating chamber is through substrate two
The through-hole of plate face, substrate have the lower face for being sealed in the lower end of through-hole on turntable.
Simulation casting type chamber includes the levorotation chamber and right type chamber that centre of gyration two sides are arranged in, and simulates the centre of gyration of casting mold
Place is provided with the inlet communicated respectively with left and right type chamber.
Bubble generates structure setting in side of the simulation casting type chamber far from the centre of gyration.
One of them of left and right type chamber is labyrinth type type chamber.
The technical solution of the bubble motion physical simulating device of vertical centrifugal casting of the invention is:
The bubble motion physical simulating device of vertical centrifugal casting, including simulate casting mold and simulate casting mold rotation for driving
Driving device, simulation casting mold include for driven device drive and rotate simulation mould body, simulate mould body packet
Foundation and transparent part are included, foundation and transparent part surround the simulation casting type chamber for accommodating simulation fluid, mould
It is additionally provided with the bubble for being passed through bubble into simulation casting type chamber on quasi- casting mold and generates structure.
Driving device includes the turntable being connected with simulation casting mold and the motor for driving centrifugation turntable rotation, the driving
Device further includes being connect with motor control for adjusting the controller of motor speed.
Simulator further includes bubble position detection device, and bubble position detection device includes setting above simulation casting mold
For captured in real-time simulation fluid in bubble high-speed camera and connection high-speed camera computer.
The beneficial effects of the present invention are: compared with the prior art, the bubble of vertical centrifugal casting according to the present invention is transported
Dynamic physical simulating device, the simulation mould body rotated including driving for driven device, simulation mould body includes base
Plinth part and transparent part, foundation and transparent part surround the simulation casting type chamber for accommodating simulation fluid, simulation casting
It is additionally provided with the bubble for being passed through bubble into simulation casting type chamber in type and generates structure, simulation casting is controlled by driving device
Type rotation reaches the simulation effect of centrifugal casting apparatus, and generates structure by bubble and be passed through into the intracavitary simulation fluid of type
Bubble by intuitively observing the real time position of bubble, and is analyzed during rotation, can be directly obtained bubble and simulated
The characteristics of motion in casting mold, it is relatively simple for structure, and make experimentation cost lower by simulator, visual result can obtain.
Detailed description of the invention
Fig. 1 is the specific embodiment structural schematic diagram of the bubble motion physical simulating device of vertical centrifugal casting of the present invention；
Fig. 2 is the simulation casting mold top view in Fig. 1；
Fig. 3 is the A of Fig. 2 to cross-sectional view；
Fig. 4 is the structure enlargement diagram in the bubble generation hole in Fig. 2.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of the bubble motion physical simulating device of vertical centrifugal casting of the invention, institute as shown in Figure 1 to Figure 4
Show, which includes simulating casting mold 6, the centrifugation turntable 5 that 6 downside of simulation casting mold is rotated synchronously with simulation casting mold being arranged in,
It is fixed by four hex bolts 65 and centrifugation turntable 5 to simulate casting mold 6, is centrifuged under turntable 5 and is connected with driving centrifugation turntable rotation
Driving device, (its working principle and structure are existing for fluid coupling which includes one end connect with centrifugation turntable
There is technology, not reinflated), the other end of fluid coupling 3 is connected with three phase alternating current motor 2, and driving device further includes and three
The controller 1 of phase AC Motor Control connection, the controller are HT6000 frequency converter, and the speed of motor is adjusted, into
And the revolving speed of motor is adjusted, it is centrifuged outside turntable and is provided with shield 4, with the simulation fluid in isolation simulation casting mold in rotation
It splashes out, which further includes bubble position detection device, and bubble position detection device includes setting above simulation casting mold
High-speed motion picture camera 7, and the computer 8 connecting with high-speed motion picture camera signal passes through the gas in 7 pairs of high-speed camera simulation casting molds
The captured in real-time of bubble obtains the location information of bubble, and is scanned analysis to data by computer.
Simulation casting mold includes being set by three pieces of poly (methyl methacrylate) plate upper-lower seals are folded, wherein on the poly (methyl methacrylate) plate 67 in middle layer
The through hole for being each provided with along the two sides of center of rotation radial direction and penetrating through the poly (methyl methacrylate) plate or more plate face, one of perforation are set
The radial section in hole is line-styled 62, and the radial section of another through hole is half " happiness " font 63, the poly (methyl methacrylate) plate on upper layer
66 and lower layer poly (methyl methacrylate) plate 68 and the through hole fasten to be formed simulation casting mold type chamber i.e. simulation casting type chamber, on upper layer
Poly (methyl methacrylate) plate the centre of gyration at be provided with the inlet communicated with type chamber, be provided with above inlet for by analog stream
Body water conservancy diversion enters the guide pipe 69 of inlet；The corresponding position in end on the poly (methyl methacrylate) plate of lower layer with type chamber far from the centre of gyration
It installs and is equipped with bubble generation hole 61, bubble generates the cavernous structure that hole 61 is upper end necking, communicates with type chamber, and generates in bubble
Silica gel pad is provided with below hole to be sealed.Three poly (methyl methacrylate) plates are fixed together by screw 64, and adjacent two
Gasket seal is added between block poly (methyl methacrylate) plate, which is fixed on centrifugation turntable by the screw of two sides.This hair
Fluid is simulated preferably with the water of tackifier in bright, and bubble generates in hole and is preferably provided with calcium carbide particle, passes through calcium carbide
The real time position of gas in water is generated with reaction after water contact, to obtain the actual characteristics of motion of bubble, it is contemplated that water glues
Lower reason is spent, joined tackifier thereto, is flowed so that its viscosity be enable to meet melts of titanium alloy under centrifugal force field
The similarity criterion of physical analogy.Meanwhile in order to become apparent from the picture taken, it has been put into suitable orchil in water.
In other embodiments, control system can be not provided with fluid coupling, directly pass through motor control；Controller can be adopted
With other kinds of controller, for example, adjusted the speed by the number of pole-pairs of motor or the forms such as the speed regulation of string pole or commutator machine speed regulation come
Control the revolving speed of motor；Type chamber may be configured as the structure of other shapes, can satisfy for a variety of different type chambers, can detect
To the characteristics of motion of bubble；Through hole can be set as one incessantly, the through hole of settable multiple and different shapes；Bubble produces
Raw room may be provided on the poly (methyl methacrylate) plate in middle layer to be communicated with type chamber；It may include being arranged in upper layer organic glass that bubble, which generates structure,
Multiple inflate of setting is communicated with type chamber on plate hole and is passed directly into gas by inflating the hole simulation fluid intracavitary to the type in rotation
The air pump of bubble and the output for being used to inflate to the intracavitary swivel joint for being passed through bubble of type in hole and swivel joint being connect with air pump
End is connected；Simulation casting mold can use transparent plastics one moulding by casting；Dyestuff can not be increased in water, reactant is settable
For the substance of other and water chemistry generated reactive gas, such as calcium carbonate, and water is changed and is set as hydrochloric acid；Poly (methyl methacrylate) plate may be configured as
Upper layer and lower layer are provided with slot on the poly (methyl methacrylate) plate of lower layer, pass through the support structure forming cavity of slot and upper glass plate；Bottom
Glass plate may be configured as opaque；Type chamber, which can have, integrally formed pours injecting plastic forming；Poly (methyl methacrylate) plate may be provided with it is multiple,
The poly (methyl methacrylate) plate of middle section is provided with the through hole of whole poly (methyl methacrylate) plates of perforation middle section.
Simulation casting mold according to the present invention, the bubble motion physics mould of specific embodiment and above-mentioned vertical centrifugal casting
The simulation casting mold embodiment of quasi- device is consistent, is no longer developed in details.
Claims (7)
1. simulating casting mold, it is characterised in that: the simulation mould body rotated including driving for driven device simulates casting mold
Ontology includes foundation and transparent part, and foundation and transparent part surround the simulation casting type for accommodating simulation fluid
Chamber simulates the bubble being additionally provided on casting mold for being passed through bubble into simulation casting type chamber and generates structure, and transparent part is by two
A poly (methyl methacrylate) plate set folded up and down is constituted, and is wherein provided on the poly (methyl methacrylate) plate of lower layer and is penetrated through the poly (methyl methacrylate) plate upper and lower plates
The through hole in face, foundation include substrate, and the substrate, through hole and upper layer poly (methyl methacrylate) plate collectively form the simulation
Casting type chamber, it includes the bubble generating chamber being disposed on the substrate that bubble, which generates structure, and the bubble generating chamber is through substrate two
The through-hole of a plate face, substrate have the lower face for being sealed in the lower end of through-hole on turntable.
2. simulation casting mold according to claim 1, it is characterised in that: the simulation casting type chamber includes being arranged in revolution
The levorotation chamber of heart two sides and right type chamber, simulate the inlet for being provided at the centre of gyration of casting mold and communicating respectively with left and right type chamber.
3. simulation casting mold according to claim 2, it is characterised in that: the bubble generates structure setting in simulation casting type
Side of the chamber far from the centre of gyration.
4. simulation casting mold according to claim 2, it is characterised in that: one of them of left and right type chamber is labyrinth type type chamber.
5. the bubble motion physical simulating device of vertical centrifugal casting, including simulation casting mold and for driving simulation casting mold rotation
Driving device, it is characterised in that: simulation casting mold includes the simulation mould body for driving and rotating for driven device, simulation casting
Type ontology includes foundation and transparent part, and foundation and transparent part surround the simulation casting for accommodating simulation fluid
Type chamber simulates and is additionally provided with bubble for being passed through from bubble to simulation casting type chamber on casting mold and generates structure, transparent part by
About the two folded poly (methyl methacrylate) plates set are constituted, and poly (methyl methacrylate) plate has two pieces, is wherein provided with and passes through on the poly (methyl methacrylate) plate of lower layer
Lead to the through hole of the poly (methyl methacrylate) plate or more plate face, foundation includes substrate, the substrate, the organic glass of through hole and upper layer
Glass plate collectively forms the simulation casting type chamber, and it includes the bubble generating chamber being disposed on the substrate, the gas that bubble, which generates structure,
The through-hole that generating chamber is two plate faces of through substrate is steeped, substrate has the lower plate for being sealed in the lower end of through-hole on turntable
Face.
6. the bubble motion physical simulating device of vertical centrifugal casting according to claim 5, it is characterised in that: driving dress
It sets including the centrifugation turntable connected with simulation casting mold and the motor for driving centrifugation turntable rotation, the driving device further includes
What is connect with motor control is used to adjust the controller of motor speed.
7. the bubble motion physical simulating device of vertical centrifugal casting according to claim 5 or 6, it is characterised in that: mould
Quasi- device further includes bubble position detection device, and bubble position detection device includes being arranged in above simulation casting mold to be used in real time
The high-speed camera of bubble in shooting simulation fluid and the computer of connection high-speed camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217824.XA CN106735043B (en) | 2016-12-26 | 2016-12-26 | The bubble motion physical simulating device and its simulation casting mold of vertical centrifugal casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217824.XA CN106735043B (en) | 2016-12-26 | 2016-12-26 | The bubble motion physical simulating device and its simulation casting mold of vertical centrifugal casting |
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| Publication Number | Publication Date |
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| CN106735043A CN106735043A (en) | 2017-05-31 |
| CN106735043B true CN106735043B (en) | 2018-12-21 |
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| CN201611217824.XA Active CN106735043B (en) | 2016-12-26 | 2016-12-26 | The bubble motion physical simulating device and its simulation casting mold of vertical centrifugal casting |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108106770B (en) * | 2017-11-10 | 2019-05-03 | 华中科技大学 | It is a kind of to fill type Fluid pressure on-line measurement system for centrifugal casting physical analogy |
| CN108765578B (en) * | 2018-05-15 | 2021-02-12 | 华中科技大学 | Three-dimensional shooting system and method for filling fluid morphology of centrifugal casting physical simulation |
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