CN209006653U - Casting device is inhaled in negative pressure - Google Patents
Casting device is inhaled in negative pressure Download PDFInfo
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- CN209006653U CN209006653U CN201821518593.0U CN201821518593U CN209006653U CN 209006653 U CN209006653 U CN 209006653U CN 201821518593 U CN201821518593 U CN 201821518593U CN 209006653 U CN209006653 U CN 209006653U
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Abstract
The utility model, which provides, inhales casting device in a kind of negative pressure, it is the top by a flat plate cover with suction pipe together in a pouring furnace, protrude into the bottom end of suction pipe in the molten steel in pouring furnace, a mold is placed on plate again, it is connected to the flow path system of mold with suction pipe, a cover is covered on above mold and plate later；It extracts and covers intracorporal air to draw the molten steel in pouring furnace, molten steel is allowed to flow into the die cavity of mold.Die cavity is full of in molten steel and then with one truncation part of driving assembly driving, allows and the substantial molten steel cut off in flow path system of part is truncated；The intracorporal air negative pressure state of release cover again later, reversely flows back towards the molten steel in flow path system in pouring furnace, and after removing cover, driving assembly, mold and truncation part, then reusable another moldings formed therefrom at least casting.
Description
Technical field
It is espespecially a kind of that inspiration on molten steel is entered into mold using negative pressure the utility model relates to inhale casting device in a kind of negative pressure
It is interior, then molten steel is cut off quickly to remove mold.
Background technique
Steel are mainly melted to 1450~1700 DEG C with calciner by the gravity-assist pouring method of existing steel casting factory
Later, the molten steel of high temperature is contained in metal bucket, then molten steel is toppled in the mold for being cast in pre-production, allow molten steel by weight
Power effect, pours pond, sprue and runner by flow path system, and by being flowed into die cavity into Tang Kou (gate), it is cooling to molten steel
It is taken out after solidification from mold, through cleaning appropriate and processing, required casting can be obtained.
Above-mentioned gravity-assist pouring method mostly uses the casting in steel MTR.However, examining based on casting cost and casting quality
Amount, have the disadvantages that 1. for meat thickness about in 3.5mm casting below for, molten steel is poured into sand mo(u)ld with gravity
When interior, molten steel is needed by flow path system.And due to the blocking of air in die cavity, the flow velocity of molten steel will not be too fast, and meat thickness is cured
Thin flow velocity is slower, and flow path will be longer therefore, if the temperature of molten steel is not high, illiquidity, will make so that molten steel cools down fastlyer
Obtain the thin meat difficult forming of casting, it is not easy to cast out excellent product.2. when melting temperature increases up to 1700 DEG C, even more
After high temperature, although molten steel flow can be increased, to form the casting of thin meat, after melting temperature increase, no
But it will increase power consumption, and will be greatly shortened the service life of the refractory material of calciner, allow the replacement frequency of refractory material to increase, such as
This one, will increase refractory material replacement cost and because replacement stop work caused by production capacity decline.Furthermore when molten steel melting temperature
When more than 1700 DEG C, the refractory material in calciner can fuse into molten steel, and molten steel is caused to include oxide impurity increase, and influence
The purity and mechanical performance of steel casting.3. molten steel is needed full of including pouring the stream such as pond, sprue and runner in casting process
Road system can just flow into die cavity, and the molten steel in this flow path system can be with the cooled and solidified simultaneously of the molten steel in die cavity.Molten steel stays
It there are molten steel is consumed in flow path system, promote casting and the ratio (namely step stays rate) of total casting molten steel can not effectively more, and
Step stays rate not promoted effectively, i.e., can not save molten steel, can not effectively save the energy, reduces production cost.
In order to solve disadvantages mentioned above, the utility model people proposes a kind of " pouring procedure is inhaled in negative pressure ", including following step
Rapid: the flat plate cover with suction pipe together in the top of calciner, is loaded with the molten steel of melting, and the bottom end of suction pipe by a. in calciner
It protrudes into molten steel；B. the air duct of connection die cavity is formed on mold, and mold is placed on plate, makes the flow path of mold
System is connected to the top of suction pipe；C., one cover is covered on to the top of mold and plate, and extracts the intracorporal air of cover, makes cover
Decrease in air pressure in body and die cavity is drawn up the molten steel in calciner via suction pipe, flows into molten steel in die cavity；And
D. a period of time is stood, allows solidifying between flow path system and die cavity into soup mouth, then the intracorporal air negative pressure state of release cover makes
Molten steel in flow path system reversely flows back towards in calciner.
Utility model content
By pouring procedure is inhaled in above-mentioned negative pressure, can solve really molten steel temperature it is not high when the thin casting of produced meat
Difficult forming and excessive molten steel rest on the various problems for making step stay rate that can not be promoted in flow path system.However, in reality
Border in order to allow into the molten steel in soup mouth in use, due to can quickly solidify, so that the molten steel in flow path system reversely flows back towards melting
In furnace, and mold is allowed to separate with plate, the molten steel in mold is made to continue to cool down, then reappose it is new when being molded on plate,
To carry out pouring practice again, the bore into soup mouth cannot be too big, and therefore, generally when bore opens up, big appointment maintains several mm
Left and right.In this way, although the bore diminution into soup mouth can allow the molten steel in bore quickly to solidify, the opposite suction pipe that can allow
The molten steel of upper suction can not it is a large amount of and quickly by into soup mouth to flow into die cavity, and since molten steel can not largely and quickly flow
Progressive die cave, for the casting that the class formation of turbocharger is complicated and meat is thin, incipient high-temperature molten steel can be quick
Into in die cavity, but will limit molten steel circulation into Tang Kou due to narrow, and the molten steel for making script mobility good into
After entering in die cavity, because of the deficiency for the amount of flowing into, gradually cools down and die cavity can not be completely filled with, in turn resulting in casting can not be successfully
The problem of molding, qualification rate can not be promoted effectively.In view of this, in order to provide a kind of structure for being different from the prior art and side
Method, and improve above-mentioned disadvantage, the experience of inventor's product many years and continuous research and development improve, and have the generation of the utility model then.
One purpose of the utility model inhales casting device and its application method on providing a kind of negative pressure, can allow high-temperature molten steel
It can largely and quickly enter in die cavity, and after molten steel is full of die cavity, the substantial cutting stream of part can be truncated with one
Molten steel in the system of road to meet the product requirement of the thin meat of casting, and reaches quick, repetition and the production of more batches effect
Fruit.
In order to achieve the above object, casting device is inhaled in negative pressure set by the utility model supply an at least moldings formed therefrom at least one
Casting, the interior at least die cavity and a flow path system for being equipped with connection of mold；One flat plate cover with suction pipe is together in a pouring furnace
Top；Mold is placed on plate, has an air duct of connection die cavity, the flow path system of mold and the top of suction pipe on mold
End connection；The top lid of mold and plate unifies cover, and cover connects an air extractor, covers intracorporal air for extracting；It is led
The technical characterstic wanted is: a truncation part is equipped in mold, one end that part is truncated has a driving assembly, and part is truncated for driving,
So that the mobile flow path system in substantial cutting mold of the other end of truncation part.
When implementation, which is sand mo(u)ld, and the air duct on mold is the gap of each sand grains of sand mo(u)ld.
When implementation, which includes a primary flow path and at least one into Tang Liulu, and primary flow path is connected to the top of suction pipe,
Into soup flow path between primary flow path and die cavity, the other end adjoining that part is truncated is somebody's turn to do into soup flow path.
When implementation, the inside of the mold has a connecting tube, and connecting tube axis connects in primary flow path, the top of connecting tube with into
Soup fluid communication, the bottom end of connecting tube and the top of suction pipe are docked and connected.
When implementation, which includes a upper mold and a lower die, and the bottom surface of upper mold has a bowl-shaped groove, the top of bowl-shaped groove to
One upright hole of upper extension, upright hole is connected to the exterior space of upper mold upwards；The other end that part is truncated has downward opening bowl-type
Portion, for being positioned in bowl-shaped groove, one end that part is truncated is a column, for being positioned in upright hole；And driving assembly includes mutual
The push rod and an actuator interlocked, one end of push rod are located in upright hole, for pushing truncation part to move down.
When implementation, one end of the push rod is in separate the state for being not attached to knot with the truncation part.
Casting device is inhaled when implementation, in the negative pressure of the utility model to further include at least two Anchor plate kits, Anchor plate kit and include
One pressing plate and an impeller, pressing plate are located in cover, and one end of impeller connects pressing plate, for pushing so that pressing plate moves down
Positioning.
Therefore, the utility model has the advantage that
1, the utility model is sucked molten steel in die cavity in a manner of inhaling in negative pressure, since its flow path system is into Tang Liulu
It can increase, allow high-temperature molten steel can be enough and quickly flow in each vacancy of die cavity, therefore can make into full of die cavity
The meat thickness of type casting is reduced to 2.5mm hereinafter, for and casting that meat is thin complicated for the class formation of turbocharger, can be because of casting
The thin meat of part and meet the requirement used, and qualification rate can be allowed to greatly improve.
2, the utility model quickly enters in die cavity in high-temperature molten steel, and after molten steel is full of die cavity, with a truncation
Molten steel in the substantial cutting flow path system of part, molten steel stills remain in molten condition or a small amount of in the die cavity of mold
Curdled appearance when, it can release negative pressure and molten steel allowed to flow back, allow it to continue to cool down after mold is removed, then by another mold
It is placed on plate, to re-start casting manipulations, therefore, can substantially shorten the time that same mold is placed on plate,
To reach the production effect of quick, repetition and more batches.
3, the push rod of the utility model driving assembly is in separate the state for being not attached to knot, and part bottom end is truncated with truncation part
Bowl-shaped portion is located in the bowl-shaped groove of upper mold, therefore, can allow cover and push rod while removing after a mold casts and completes,
Mold and truncation part are moved, simultaneously again to reach the production operation of repetition and more batches.
4, the utility model pushes at least one when cover is covered on above mold and plate, while with an at least impeller
Pressing plate allows an at least pressing plate to move down and be pressed on the top surface of mold, therefore, effective position can cast in casting process
Mould influences product quality to prevent the high-temperature molten steel flowed up from leaking outward, or even causes danger.And it is based on this pressing plate group
Part structure more can allow the upper die and lower die of mold to be fitted tightly on plate, and can allow mold and plate fit closely with
Separation is more rapidly effectively and easy, to reduce the cost of manpower operation.
To further appreciate that the utility model, preferred embodiment is lifted below, cooperates schema, figure number, by the utility model
Specific composition content and its it is reached the effect of detailed description are as follows.
Detailed description of the invention
Fig. 1 is the combination diagrammatic cross-section that the preferred embodiment of casting device is inhaled in the utility model negative pressure.
Fig. 2 is use state diagram of the preferred embodiment of the utility model when forming negative pressure.
Fig. 3 is that the preferred embodiment of the utility model reversely flows back towards the use shape of pouring furnace in truncation part cutting molten steel and molten steel
State schematic diagram.
Fig. 4 is that the preferred embodiment of the utility model is completed in a casting manipulations, and by cover, driving assembly, mold and
Use state diagram when truncation part is separated with plate respectively.
Description of symbols: casting device 1 is inhaled in negative pressure；Mold 2；Air duct 21；Upper mold 22；Bowl-shaped groove 221；Uprightly
Hole 222；Lower die 23；Washer 231；Die cavity 24；Flow path system 25；Primary flow path 251；Into soup flow path 252；Connecting tube 26；Pouring furnace
3；Plate 4；Suction pipe 41；Cover 5；Exhaust tube 51；Air extractor 6；Anchor plate kit 7；Pressing plate 71；Impeller 72；Part 8 is truncated；It is vertical
Column 81；Bowl-shaped portion 82；Driving assembly 9；Push rod 91；Actuator 92.
Specific embodiment
Refering to Figure 1, it is the preferred embodiment for inhaling casting device 1 in the utility model negative pressure, cast at least one
Mould 2 forms an at least casting, and it includes a pouring furnace 3, a plate 4, a mold 2, a cover 5, one that casting device 1 is inhaled in the negative pressure
Air extractor 6, at least two Anchor plate kits 7, one truncation part 8 and a driving assembly 9.
The top of the pouring furnace 3 forms opening, and coiling is enclosed in the outer peripheral edge of pouring furnace 3, to control after coil heats
The molten steel temperature melted in pouring furnace 3 controls the melting temperature of molten steel between 1500~1600 DEG C.It, should when implementation
Pouring furnace 3 can also be via the mode that other are directly or indirectly heated to heat molten steel.4 system of plate is covered on the top of pouring furnace 3
On end opening, plate 4 has about one perforative hollow ceramic suction pipe 41, and suction pipe 41 extends vertically through the plate face of plate 4, and suction pipe
The top surface outline of 41 top end opening and plate 3 is in same level.
The mold 2 is sand mo(u)ld, the gap of each sand grains of sand mo(u)ld as mold 2 air duct 21, for generating permeation functions.Casting
Mould 2 includes a upper mold 22 and a lower die 23, and the bottom surface of upper mold 22 has the bowl-shaped groove 221 being recessed upwards, the top of bowl-shaped groove 221
End upwardly extends a upright hole 222, and upright hole 222 is connected to the exterior space of upper mold 22 upwards.In the present embodiment, in mold 2
Four die cavitys 24 and a flow path system 25 equipped with connection, four die cavitys 24 via on mold 2 air duct 21 and mold 2 outside
Portion's connection；For the flow path system 25 including a primary flow path 251 and four into soup flow path 252, primary flow path 251 is the circle in lower die 23
Tubular upright duct, 251 axis of primary flow path connect a connecting tube 26, and the top of connecting tube 26 is connected to four into soup flow path 252, and four
It is located between 26 top of connecting tube and four die cavitys 24 into soup flow path 252, when mold 2 is placed on the top surface of plate 4,
The bottom end of connecting tube 26 and the top of suction pipe 41 are docked and connected.When implementation, die cavity 24 and can also be with one group or two into soup flow path 252
Mode more than group exists, to form one or two or more casting simultaneously.The bottom surface of the lower die 23 has an annular leakproof pottery
Porcelain cotton pad circle 231.
The cover 5 is the hollow container that bottom surface forms opening, and cover 5 is covered on the top of mold 2 and plate 4, makes mold 2
It is contained between 4 top surface of plate and the inner wall of cover 5.Cover 5 connects one end of an exhaust tube 51, and the other end of exhaust tube 51 connects
A vacuum pump is connect, the vacuum pump is as air extractor 6, to extract the air in cover 5.
In the present embodiment, which is equipped with two, and two Anchor plate kits 7 are set side by side, and any one pressing plate group
Part 7 includes a flat platen 71 and an impeller 72, and 71 system of pressing plate is positioned in a manner of moving up and down in cover 5, pressing plate
71 top surface is connected up in the bottom end of impeller 72, and impeller 72 is a cylinder, for pushing so that pressing plate 71 moves down calmly
Position.When implementation, impeller 72 can also be the mechanical structure of an oil hydraulic cylinder or stepper motor and the class of rack combination, equally may be used
It is moved up and down with crush board 71.
The top of the truncation part 8 is a column 81, and column 81 is inserted into the upright hole 222 of upper mold 22 and is positioned at upright hole
In 222；The bottom end that part 8 is truncated has opening down and perimeter closure bowl-shaped portion 82, and the outer arcuate periphery of bowl-shaped portion 82 is close to
On the outer arcuate periphery of 22 bowl-shaped groove 221 of upper mold, to position bowl-shaped portion 82；When truncation part 8 is located in 22 inside of upper mold, bowl
The bottom surface in shape portion 82 is adjacent into soup flow path 252.
And the driving assembly 9 includes the push rod 91 and an actuator 92 mutually interlocked, the upper half of push rod 91 has tooth
Item, the bottom end of push rod 91 pass through the upright hole 222 of upper mold 22 and are located in upright hole 222, bottom end and the truncation part 8 of push rod 91
Top is in separation and is not attached to the state tied；And actuator 92 is the cogged stepper motor of tool, to be rotated in stepper motor
When, push rod 91 can be driven to move down with gear, then push the column 81 of truncation 8 upper end of part with the bottom end of push rod 91, allow and cut
Broken piece 8 moves down.When implementation, actuator 92 can also be oil hydraulic cylinder or pneumatic cylinder, equally push rod 91 can be allowed to move down.
In this way, inhaling the preferred embodiment of the application method of casting device in the utility model negative pressure, including the following steps:
Plate 4 with suction pipe 41 is covered on to the top of pouring furnace 3, and protrudes into the bottom end of suction pipe 41 in pouring furnace 3
Molten liquid steel among.
As shown in Fig. 2, mold 2 is placed on plate 4, it is connected to the flow path system 25 of mold 2 with the top of suction pipe 41；
Cover 5 is covered on to the top of mold 2 and plate 4 again；The air in cover 5 is extracted, the air pressure in cover 5 and die cavity 24 is made
Power reduces, and to draw the molten steel in pouring furnace 3 upwards via suction pipe 41, molten steel is allowed to flow into die cavity 24.
As shown in figure 3, driving truncation part 8 after molten steel is full of die cavity 24 with driving assembly 9, allowing and the another of part 8 is truncated
The mobile molten steel in substantial cutting flow path system 25 in end；It releases the air negative pressure state in cover 5 again later, makes flow path
Molten steel in system 25 reversely flows back towards in pouring furnace 3.
As shown in figure 4, removing cover 5 and driving assembly 9, then mold 2 and truncation part 8 are moved, allowed flat with suction pipe 41
Plate 4 continues the top for being covered on pouring furnace 3；And
Step b to step d is repeated, to use another mold 2 to form an at least casting.
Wherein, when extracting the air in cover 5 with air extractor 6, due to the gas permeability of mold 2, can make cover 5 and
Decrease in air pressure in die cavity 24, allows air pressure and die cavity 24, flow path system 25, connecting tube 26 and suction pipe in cover 5
Air pressure in 41 is identical, using the high-temperature molten steel in negative pressure extracting pouring furnace 3, to make molten steel via suction pipe 41 to upstream
It is dynamic, then flowed into die cavity 24 via flow path system 25.
It is with two impellers when the cover 5 of b step is covered on above mold 2 and plate 4 referring again to shown in Fig. 2
72 push two pressing plates 71 respectively, allow two pressing plates 71 while moving down and being pressed on the top surface of mold 2 with position mold
2, prevent the high-temperature molten steel flowed up from leaking outward.And due to 231 system of washer be folded in 23 bottom surface of lower die and 4 top surface of plate it
Between, it can more effectively prevent high-temperature molten steel to be leaked outward by the gap between 4 top surface of 23 bottom surface of lower die and plate.
After molten steel flows into die cavity 24 and is full of die cavity 24, it is that truncation part 8 is driven with driving assembly 9, truncation part 8 is allowed to move
It moves and covers the bowl-shaped portion 82 that 8 bottom end of part is truncated on 26 top of connecting tube, substantially to cut off primary flow path 251 and four into soup stream
Molten steel connection between road 252, or directly cover at four on soup flow path 252, it can equally cut off in flow path system 25
Molten steel.And it is above-mentioned it is substantial cutting flow path system 25 in molten steel connection mean allow bowl-shaped portion 82 bottom end and connecting tube 26 top
End is completely closely sealed, may also comprise and the bottom end of bowl-shaped portion 82 and the top of connecting tube 26 is allowed to have subtle gap, but can allow stream
Most molten steel in road system 25 is cut off, and for the only micro and leakage that can quickly solidify.
After the molten steel in flow path system 25 is cut off, the molten steel in die cavity 24 still may remain in molten condition,
Or in a small amount of curdled appearance, at this point, the air negative pressure state in cover 5 can be released, make the molten steel in flow path system 25
It flows downwardly in counter current flow back in pouring furnace 3.And after molten steel is reversely flowd back towards completely in pouring furnace 3, by cover 5, Anchor plate kit 7 and driving group
Part 9 is removed, and mold 2, truncation part 8 is allowed to separate with plate 4, can reappose new mold 2 again when on plate 4, again
Casting manipulations are carried out, to use another mold 2 to form an at least casting.
Therefore, the utility model has the advantage that
1, the utility model is sucked molten steel in die cavity in a manner of inhaling in negative pressure, since its flow path system is into Tang Liulu
It can increase, allow high-temperature molten steel can be enough and quickly flow in each vacancy of die cavity, therefore can make into full of die cavity
The meat thickness of type casting is reduced to 2.5mm hereinafter, for and casting that meat is thin complicated for the class formation of turbocharger, can be because of casting
The thin meat of part and meet the requirement used, and qualification rate can be allowed to greatly improve.
2, the utility model quickly enters in die cavity in high-temperature molten steel, and after molten steel is full of die cavity, with a truncation
Molten steel in the substantial cutting flow path system of part, molten steel stills remain in molten condition or a small amount of in the die cavity of mold
Curdled appearance when, it can release negative pressure and molten steel allowed to flow back, allow it to continue to cool down after mold is removed, then by another mold
It is placed on plate, to re-start casting manipulations, therefore, can substantially shorten the time that same mold is placed on plate,
To reach the production effect of quick, repetition and more batches.
3, the push rod of the utility model driving assembly is in separate the state for being not attached to knot, and part bottom end is truncated with truncation part
Bowl-shaped portion is located in the bowl-shaped groove of upper mold, therefore, can allow cover and push rod while removing after a mold casts and completes,
Mold and truncation part are moved, simultaneously again to reach the production operation of repetition and more batches.
4, the utility model pushes at least one when cover is covered on above mold and plate, while with an at least impeller
Pressing plate allows an at least pressing plate to move down and be pressed on the top surface of mold, therefore, effective position can cast in casting process
Mould influences product quality to prevent the high-temperature molten steel flowed up from leaking outward, or even causes danger.And it is based on this pressing plate group
Part structure more can allow the upper die and lower die of mold to be fitted tightly on plate, and can allow mold and plate fit closely with
Separation is more rapidly effectively and easy, to reduce the cost of manpower operation.
In conclusion the utility model really can reach expected purpose according to content disclosed above, one kind is provided not only
The thin meat of casting, quick production can be made simple to reduce production cost, raising yield, processing procedure, and can ensure that the negative of casting quality
Casting device and its application method, the value utilized in great industry are inhaled in pressure.
Claims (8)
1. inhaling casting device in a kind of negative pressure, for an an at least moldings formed therefrom at least casting, connection is equipped at least in the mold
One die cavity and a flow path system；The one plate system with suction pipe is covered on the top of a pouring furnace；The mold is placed in the plate
On, there is the air duct for being connected to the die cavity, the flow path system of the mold is connected to the top of the suction pipe on the mold；The casting
The top lid of mould and the plate unifies cover, which connects an air extractor, for extracting the intracorporal air of the cover；Its feature exists
In:
A truncation part is equipped in the mold, one end of the truncation part has a driving assembly, for driving the truncation part, so that this section
The other end of broken piece is mobile with substantial flow path system cut off in the mold.
2. inhaling casting device in negative pressure according to claim 1, which is characterized in that the mold is sand mo(u)ld, on the mold
Air duct is the gap of each sand grains of sand mo(u)ld.
3. inhaling casting device in negative pressure according to claim 1 or 2, which is characterized in that the flow path system includes a mainstream
Road and at least one into Tang Liulu, which is connected to the top of the suction pipe, should be located at the primary flow path and the die cavity into soup flow path
Between, the other end of the truncation part is adjacent to be somebody's turn to do into soup flow path.
4. inhaling casting device in negative pressure according to claim 3, which is characterized in that the inside of the mold has a connection
Pipe, which connects in the primary flow path, the top of the connecting tube with should into soup fluid communication, the bottom end of the connecting tube with should
The top of suction pipe is docked and connected.
5. inhaling casting device in negative pressure according to claim 1, which is characterized in that the mold is including a upper mold and once
The bottom surface of mould, the upper mold has a bowl-shaped groove, and the top of the bowl-shaped groove upwardly extends a upright hole, which is connected to upwards should
The exterior space of upper mold；The other end of the truncation part has downward opening bowl-shaped portion, for being positioned in the bowl-shaped groove；And the drive
Dynamic component includes the push rod and an actuator mutually interlocked, and one end of the push rod is located in the upright hole, for pushing the truncation
Part moves down.
6. inhaling casting device in negative pressure according to claim 5, which is characterized in that one end of the push rod is in the truncation part
Separation is not attached to the state of knot.
7. inhaling casting device in negative pressure according to claim 5 or 6, which is characterized in that one end of the truncation part is one vertical
Column, for being positioned in the upright hole.
8. inhaling casting device in negative pressure according to claim 1, which is characterized in that it further include at least two Anchor plate kits, it should
Anchor plate kit includes a pressing plate and an impeller, which is located in the cover, and one end of the impeller connects the pressing plate, is supplied
It pushes so that the pressing plate moves down positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821518593.0U CN209006653U (en) | 2018-09-17 | 2018-09-17 | Casting device is inhaled in negative pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821518593.0U CN209006653U (en) | 2018-09-17 | 2018-09-17 | Casting device is inhaled in negative pressure |
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| CN209006653U true CN209006653U (en) | 2019-06-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992693A (en) * | 2020-03-09 | 2020-11-27 | 江苏大学 | Vacuum suction casting method and device for high-manganese damping alloy fired mold |
| CN112935223A (en) * | 2019-12-11 | 2021-06-11 | 科华控股股份有限公司 | Structure for preventing sealing failure by modifying vacuum suction casting profiling cylinder outside suction casting chamber |
-
2018
- 2018-09-17 CN CN201821518593.0U patent/CN209006653U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935223A (en) * | 2019-12-11 | 2021-06-11 | 科华控股股份有限公司 | Structure for preventing sealing failure by modifying vacuum suction casting profiling cylinder outside suction casting chamber |
| CN111992693A (en) * | 2020-03-09 | 2020-11-27 | 江苏大学 | Vacuum suction casting method and device for high-manganese damping alloy fired mold |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |