CN106925741B - Aluminum products centrifugal casting feeding device - Google Patents
Aluminum products centrifugal casting feeding device Download PDFInfo
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- CN106925741B CN106925741B CN201710296570.3A CN201710296570A CN106925741B CN 106925741 B CN106925741 B CN 106925741B CN 201710296570 A CN201710296570 A CN 201710296570A CN 106925741 B CN106925741 B CN 106925741B
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- liquid
- admission chamber
- centrifugal casting
- chamber
- inlet tube
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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
- B22D13/107—Means for feeding molten metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention relates to centrifugal casting equipment more particularly to centrifugal casting feed devices.Aluminum products centrifugal casting feeding device, including admission chamber, diversion pipe, admission chamber are connected to diversion pipe；It further include inlet tube, admission chamber is connected to inlet tube, and feed liquor switch is provided on inlet tube；The side wall of admission chamber is provided with opening, and open outer side is coated with high temperature resistant expanded by heating piece, and the heated expansion outward of high temperature resistant expanded by heating piece increases the cross-sectional area in admission chamber at liquid level place；The diversion pipe other end is connected with liquid storage chamber.Hydraulic at inlet tube remains unchanged, and the flow rate of liquid in inlet tube remains unchanged, therefore the liquid inlet volume of centrifugal casting equipment is constant, and the thickness of aluminum products is uniform.
Description
Technical field
The present invention relates to centrifugal casting equipment more particularly to centrifugal casting feed devices.
Background technique
Centrifugal casting is to pour into liquid metals in the casting mold of rotation, and liquid metals is made to fill casting under the influence of centrifugal force
A kind of casting method of type and solidification forming.When centrifugal casting, liquid metals can form hollow cylinder freely in casting mold
Surface, can not have to type core in this way can cast out hollow casting, enormously simplify the production process of sleeve, tubing casting；By
The ability that metal fills town casting mold can be improved in centrifugal force effect, centrifugal casting caused by liquid metals when rotation, therefore some
The poor alloy of mobility and thin-section casting can all be produced with centre spinning；Due to the effect of centrifugal force, feeding item is improved
Part, gas and nonmetal inclusion are also easy to be discharged from liquid metals, therefore the tissue of centrifugal casting is finer and close, shrinkage cavity, stomata,
The defects of being mingled with is less, can also eliminate the metal consumption in terms of casting device and riser.
Current centrifugal casting is typically provided with pouring device, including tundish, pouring basin and running channel etc..But due to casting
The inner surface of part is Free Surface, and liquid metals is in rotational case retrofilling casting mold and to be solidified, the feed liquor of liquid metals
When measuring unstable, the inner surface of casting is rougher.And in casting process, metal liquid is in flow regime, metal liquid into
Liquid level is unstable after entering lower part tundish, and liquid is wavy to flow to pouring device, and the products thickness produced in this way is uneven,
Also have an impact to the performance of product.
Announce on November 5th, 2014 application No. is 201410308908.9 Chinese patent disclose it is a kind of for vacuum
The casting part flow arrangement of smelting, comprising: adjusting bracket, the upper end have fixed platform, are equipped with tundish skeleton in fixed platform,
Diversion trench is installed above tundish skeleton；Current divider, including left plate, right side plate, rear baffle, bottom plate and flow-stopping plate, it is left
Side plate, right side plate, rear baffle and bottom plate define the tundish with open front and upper opening, before flow-stopping plate is located at tundish
Flow-stopping plate setting is extended in aperture position, the front end of bottom plate, and the lower end of flow-stopping plate is provided with square groove, and the longitudinal cross-section of square groove is
It is trapezoidal.
Flow-stopping plate is set in tundish, and metal liquid is flowed into centrifugal device by the opening of flow-stopping plate lower end, intermediate
There is certain liquid height in packet, although flow-stopping plate can eliminate the ripple at a part of liquid level, the metal liquid in tundish
Height cannot remain unchanged, so hydraulic at flow-stopping plate lower ending opening is also changing always.When liquid level is higher, opening
Hydraulic increase the amount of the metal liquid of centrifugal device also not phase is flowed into the unit time so the flow velocity of metal liquid increases
Together, so needing a kind of feeding device that flow is constant.In addition, the pressure of increase makes when liquid level rises in tundish
Flow rate of liquid becomes faster, and the liquid that flow velocity is accelerated still can form ripple in the front end of bottom plate, makes to be centrifuged the in uneven thickness of product.
Secondly, operator's moment is needed to monitor the liquid level of tundish, the big of the amount of liquid flowed out from diversion trench is constantly adjusted
Small, preventing liquid level is more than diversion trench, and the moment adjusts the difficulty for increasing operator, increases cost of labor, so needing
Want a kind of device for automatically controlling feed liquor.
Summary of the invention
The purpose of the present invention is to provide centrifugally cast feeding devices that a kind of liquid inlet volume is constant.
In order to achieve the above objectives, the technical scheme is that aluminum products centrifugal casting feeding device, including admission chamber,
Diversion pipe, admission chamber are connected to diversion pipe；Admission chamber is connected to inlet tube, is provided on inlet tube and is opened and closed inlet tube
Feed liquor switch；Admission chamber side wall is provided with the opening through side wall above inlet tube, be fixedly installed in opening high temperature resistant be heated it is swollen
Swollen, the heated expansion outward of high temperature resistant expanded by heating piece increases the cross-sectional area of admission chamber；The diversion pipe other end is connected with storage
Sap cavity.
When to centrifugal casting equipment feed liquor, inlet tube is connect with centrifugal casting equipment, open feed liquor switch, fusing point is lower
Metal liquid centrifugal casting equipment is entered by inlet tube, the liquid of admission chamber starts to reduce, and liquid level is begun to decline, at this time with
Liquid in the liquid storage chamber of admission chamber connection is flowed into admission chamber by diversion pipe, to slow down reduction of speed under the liquid level in admission chamber
Degree；At the same time, since the liquid level of admission chamber declines, high temperature resistant expanded by heating piece and molten metal are detached from, the temperature drop of contact position
Low, therefore contact position is shunk, the cross-sectional area located in admission chamber where liquid level reduces, volume reduction, may further slow down into
Liquid level decrease speed in sap cavity.
When adding metal liquid into liquid storage chamber, the liquid in liquid storage chamber increases, and liquid flows to admission chamber by diversion pipe
In, the liquid in admission chamber increases, and liquid level is begun to ramp up, the high temperature resistant expanded by heating piece expanded by heating touched with liquid, into
The cross-sectional area of sap cavity increases, and the liquid level rate of climb slows down.
In conjunction with to centrifugal casting equipment feed liquor process and to liquid storage chamber liquid feeding process, the liquid level in admission chamber reaches one
A dynamic equilibrium, the liquid level in admission chamber remain unchanged, so hydraulic at inlet tube remains unchanged, the liquid in inlet tube
Body flow velocity remains unchanged, therefore the liquid inlet volume of centrifugal casting equipment is constant, and the thickness of aluminum products is uniform.Secondly as being when liquid feeding
Liquid is added in liquid storage chamber, and liquid storage chamber is connected to by diversion pipe with admission chamber, so being caused in liquid storage chamber when liquid feeding
Ripple, which occurs, in liquid level will not make the liquid level of admission chamber ripple occur.
As the further improvement to scheme one, the cross-sectional area of liquid storage chamber is greater than the cross-sectional area of admission chamber.Liquid storage chamber
Cross-sectional area can guarantee after trickle greatly, liquid level decline height it is small, can guarantee to be connected to liquid storage chamber as far as possible
Admission chamber liquid level decline height it is small.
As to scheme one or scheme and further improvement, liquid storage chamber be equipped with liquid-adding device, liquid-adding device and liquid storage
Liquid-feeding tube is connected between chamber, liquid-feeding tube is switched equipped with liquid feeding.Be added liquid storage chamber in metal liquid make liquid storage chamber and into
When the liquid level of sap cavity rises, liquid feeding switch can be closed, suspend liquid feeding, etc. liquid level decline in liquid storage chambers when open liquid feeding again and open
It closes, starts the liquid feeding into liquid storage chamber.Liquid feeding switch can control liquid feeding process, can also be guaranteed by control liquid feeding switch
The liquid level of liquid storage chamber and admission chamber is constant, keeps the liquid inlet volume of inlet tube constant, guarantees that the thickness of product is uniform.
As the further improvement to scheme three, high temperature resistant expanded by heating piece expanded by heating closes the liquid feeding switch.When
When the liquid being added in liquid storage chamber is excessive, the liquid level in liquid storage chamber and admission chamber rises, the high temperature resistant contacted with the liquid of rising
The heated expansion outward of expanded by heating piece, closes liquid feeding switch, liquid-adding device stops the liquid feeding into liquid storage chamber.Liquid is from inlet tube
It flows out, the liquid in admission chamber and liquid storage chamber is reduced, and liquid level decline, the high temperature resistant not contacted with metal liquid is heated swollen
Swollen resiles, and opens liquid feeding switch, and liquid-adding device restarts to think liquid feeding in liquid storage chamber.During this, when addition
Metal liquid is excessive, then automatic cut-off switch, stopping liquid feeding avoiding and sentence without being judged again in the outer bound pair liquid feeding time
The error that disconnected inaccuracy occurs；Secondly, realizing the automation of liquid feeding, the workload of worker is reduced.
As the further improvement to scheme four, admission chamber or at least one downside of liquid storage chamber are equipped with heating device.
In process of production, always with the presence of metal liquid in admission chamber and storage chamber, and metal liquid temperature is much higher than the external world, so
It is easy solidification when storage time is longer, and blocking will be will lead to after the liquid solidification in inlet tube and diversion pipe.Increase heating
Device can heat liquid when fluid temperature reduces, and prevent liquid in admission chamber, liquid storage chamber, inlet tube and water conservancy diversion
It is solidified in pipe.
As the further improvement to scheme one, feed liquor switch is connect with time switch.Produce the gold of product needs
Belong to liquid be it is identical, in the case where liquid inlet volume is constant, liquid inlet volume can be controlled by the control time.Timing opens and closes
The automation of feed liquor may be implemented in inlet tube, can also to avoid the feed liquor time because of each product it is different caused by cast product
Amount of metal is different and the performance of each product is different.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the front view of the embodiment of the present invention 1；
Fig. 2 is the top view of the embodiment of the present invention 2.
Specific embodiment
Appended drawing reference are as follows: admission chamber 1, liquid storage chamber 2, centrifugal casting equipment 3, liquid-adding device 4, bimetal leaf 5, diversion pipe 6,
Inlet tube 7, feed liquor switch 8, liquid-feeding tube 9, liquid feeding switch 10.
Embodiment 1
Such as Fig. 1, aluminum products centrifugal casting feeding device includes admission chamber 1, liquid storage chamber 2, centrifugal casting equipment 3, liquid feeding dress
Set 4, high temperature resistant expanded by heating piece, diversion pipe 6, inlet tube 7, feed liquor switch 8, liquid-feeding tube 9 and liquid feeding switch 10.Inlet tube 7
One end is connected to admission chamber 1, and 7 other end of inlet tube is connect with centrifugal casting equipment 3.High temperature resistant is coated on the inner wall of admission chamber 1
Coating, prevents the reduction of aluminum melt temperature, and the side wall that admission chamber 1 is located at 7 top of inlet tube was provided with upwards through 1 side of admission chamber last week
The opening of wall, high temperature resistant expanded by heating piece are coated on open outer side, and the high temperature resistant expanded by heating piece of the present embodiment is bimetal leaf
5, the thermal expansion coefficient of each layer of bimetal leaf 5 is different, so when the temperature varies, the deformation of the active layers of bimetal leaf 5
Greater than the deformation of passive layer, so bimetal leaf 5 is whole to passive layer curving, the passive layer setting in the present embodiment is being leaned on
Nearly admission chamber side wall side, so to 1 curving of admission chamber after bimetal leaf 5 is heated, so the volume of admission chamber 1 becomes larger.
1 bottom side of the wall of admission chamber is communicated with diversion pipe 6, before the opening of diversion pipe 6 and the opening of liquid-feeding tube 7 are respectively close to liquid feeding chamber 1
Side wall and rear wall guarantee that the aluminium alloy liquid for entering admission chamber 1 from diversion pipe 6 will not have an impact the flow velocity of liquid-feeding tube 7.
6 other end of diversion pipe is connected to liquid storage chamber 2, is coated with high-temperature resistant coating on 2 inner wall of liquid storage chamber, prevents the reduction of aluminum melt temperature.Liquid storage
It is connected with liquid-feeding tube 9 on 2 upper end side wall of chamber, the aluminium alloy solution in liquid-adding device 4 is added in liquid storage chamber 2 by liquid-feeding tube 9,
The liquid feeding switch 10 for opening and closing liquid-feeding tube is provided on liquid-feeding tube 9.It is arranged in the bottom of admission chamber 1 and liquid storage chamber 2 and heats
Coil heats aluminum melt, prevents aluminum melt from solidifying.
The fusing point of aluminium is 660 DEG C, and the fusing point of alloy is generally below metal, so the temperature of aluminium alloy solution is lower than 660
DEG C, the temperature that the material that high temperature resistant expanded by heating piece 5 uses is resistant to is higher than 660 DEG C, and is soft material.Occur when heated swollen
Bulging deformation is expanded outward, it is possible to expand the cross-sectional area of admission chamber 1, so the liquid level in admission chamber 1 declines.
When adding molten aluminum into liquid storage chamber 2, the molten aluminum in liquid storage chamber 2 increases, and molten aluminum flows to admission chamber 1 by diversion pipe 6
In, the molten aluminum in admission chamber 1 increases, and liquid level is begun to ramp up, 5 expanded by heating of bimetal leaf touched with molten aluminum, admission chamber 1
Cross-sectional area increases, and the liquid level rate of climb slows down.
Embodiment 2
The difference is that, feed liquor switch 8 is arranged between 1 side wall of admission chamber and centrifugal casting equipment 3 with embodiment 1
Inlet tube on 7, be provided with timer in feed liquor switch 8.Inlet tube 7 when the liquid level of measurement admission chamber 1 is located at constant level
Flow velocity calculates liquid flow and goes out to produce the time required for metal liquid measure needed for a product, the opening of timer setting with
The time interval for closing feed liquor switch 8 is the time of liquid outflow needs.Such as Fig. 2, after 5 expanded by heating of high temperature resistant expanded by heating piece
Close liquid feeding switch 10.
When liquid level rises in liquid feeding chamber 1, high temperature resistant expanded by heating piece 5 is heated to start expansion outward, and high temperature resistant is heated swollen
Start for swollen 5 to press liquid feeding switch 10 to the right, liquid feeding switch 10 is closed, and liquid-adding device 4 stops into liquid storage chamber 2 plus molten aluminum.When
When liquid level declines in liquid feeding chamber 1, the bimetal leaf 5 not contacted with molten aluminum is shunk, and liquid feeding switch 10 is opened.Liquid feeding process is logical
Cross the liquid surface height controlling of admission chamber 1, cannot can be closed in time to avoid artificial judgment inaccuracy liquid feeding switch 10 to make into
The case where 1 liquid level of sap cavity rises.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, these also should be considered as guarantor of the invention
Range is protected, these all will not influence the effect and patent practicability that the present invention is implemented.The present invention omits the technology of description, shape
Shape, construction portion are well-known technique.
Claims (6)
1. aluminum products centrifugal casting feeding device, including admission chamber (1), diversion pipe (6), the admission chamber (1) and diversion pipe (6)
Connection；It is characterized by also including inlet tube (7), the admission chamber (1) is connected to inlet tube (7), on the inlet tube (7)
It is provided with feed liquor switch (8)；The side wall of the admission chamber (1) is provided with opening, the open outer side be coated with high temperature resistant be heated it is swollen
Swollen, the heated expansion outward of the high temperature resistant expanded by heating piece increases the cross-sectional area at the interior liquid level place of the admission chamber (1)
Greatly；Diversion pipe (6) other end is connected with liquid storage chamber (2).
2. aluminum products centrifugal casting feeding device according to claim 1, it is characterised in that: the cross of the liquid storage chamber (2)
Sectional area is greater than the cross-sectional area of the admission chamber (1).
3. aluminum products centrifugal casting feeding device according to claim 1 or 2, it is characterised in that: further include liquid-adding device
(4) it is connect with the liquid storage chamber (2) by liquid-feeding tube (9) with liquid-feeding tube (9), the liquid-adding device (4), the liquid-feeding tube (9)
It is equipped with liquid feeding switch (10).
4. aluminum products centrifugal casting feeding device according to claim 3, it is characterised in that: the high temperature resistant expanded by heating
Piece expanded by heating closes the liquid feeding switch (10).
5. aluminum products centrifugal casting feeding device according to claim 4, it is characterised in that: the admission chamber (1) or
At least one downside of liquid storage chamber (2) is equipped with heating device.
6. aluminum products centrifugal casting feeding device according to claim 1, it is characterised in that: the feed liquor switchs (8) and is
Time switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296570.3A CN106925741B (en) | 2017-04-28 | 2017-04-28 | Aluminum products centrifugal casting feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296570.3A CN106925741B (en) | 2017-04-28 | 2017-04-28 | Aluminum products centrifugal casting feeding device |
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| Publication Number | Publication Date |
|---|---|
| CN106925741A CN106925741A (en) | 2017-07-07 |
| CN106925741B true CN106925741B (en) | 2019-02-15 |
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| CN201710296570.3A Active CN106925741B (en) | 2017-04-28 | 2017-04-28 | Aluminum products centrifugal casting feeding device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203437612U (en) * | 2013-11-19 | 2014-02-19 | 烟台玛努尔高温合金有限公司 | Pouring cup for casting |
| CN104128577A (en) * | 2014-07-01 | 2014-11-05 | 中磁科技股份有限公司 | Casting distributing device for vacuum smelting |
| CN105562646A (en) * | 2015-12-18 | 2016-05-11 | 重庆市特泰机械制造有限公司 | Liquid inflow device used for centrifugal casting |
| CN105817596A (en) * | 2015-01-23 | 2016-08-03 | 株式会社久保田 | Casting mold supporting structure, casting machine, method for producing cast product, casting mold, and molten metal supplying structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57199557A (en) * | 1981-05-30 | 1982-12-07 | Kubota Ltd | Method and device for centrifugal casting |
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2017
- 2017-04-28 CN CN201710296570.3A patent/CN106925741B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203437612U (en) * | 2013-11-19 | 2014-02-19 | 烟台玛努尔高温合金有限公司 | Pouring cup for casting |
| CN104128577A (en) * | 2014-07-01 | 2014-11-05 | 中磁科技股份有限公司 | Casting distributing device for vacuum smelting |
| CN105817596A (en) * | 2015-01-23 | 2016-08-03 | 株式会社久保田 | Casting mold supporting structure, casting machine, method for producing cast product, casting mold, and molten metal supplying structure |
| CN105562646A (en) * | 2015-12-18 | 2016-05-11 | 重庆市特泰机械制造有限公司 | Liquid inflow device used for centrifugal casting |
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| CN106925741A (en) | 2017-07-07 |
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