CN114749611A - Casting shrinkage cavity prevention device for hot working casting - Google Patents
Casting shrinkage cavity prevention device for hot working casting Download PDFInfo
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- CN114749611A CN114749611A CN202210255294.7A CN202210255294A CN114749611A CN 114749611 A CN114749611 A CN 114749611A CN 202210255294 A CN202210255294 A CN 202210255294A CN 114749611 A CN114749611 A CN 114749611A
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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
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
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Abstract
The invention discloses a casting shrinkage-proof device for hot working casting, which relates to the technical field of sand casting equipment and comprises a mold and a handle, wherein the mold is composed of an upper template and a lower template, the top of the lower template is provided with the upper template, the upper template and the lower template are arranged correspondingly, the side surfaces of the upper template and the lower template are respectively provided with the handles which have the same number and correspond to each other in position correspondingly, a casting cavity is arranged between the upper template and the lower template, the top of the upper template is provided with a casting hole, a sliding rail is provided with a bubble removing casting device in sliding connection, and the bubble removing casting device is composed of a transmission mechanism, a rotating device and a vibrating device; the invention has simple and reasonable structure, can effectively carry out bubble exhaust treatment on the metal liquid before casting, and can effectively solve the problem that bubbles in the metal liquid are difficult to float upwards, thereby reducing the generation of shrinkage cavities of the cast casting.
Description
Technical Field
The invention relates to the technical field of sand casting equipment, in particular to a casting shrinkage cavity prevention device for hot working casting.
Background
The casting method comprises the steps that metal is melted into molten metal and the molten metal is cast in a sand casting cavity in a mold during casting, the molten metal is usually directly cast after being melted during casting, bubbles often exist in the cast molten metal, the cast casting has shrinkage cavities due to the fact that the bubbles cannot be discharged after the molten metal is cast and cooled, and the bubbles in the molten metal are difficult to float upwards due to the fact that the density of the molten metal is high.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a casting shrinkage cavity prevention device for hot working casting.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a casting shrinkage-proof device for hot working casting comprises a mold and a handle, wherein the mold comprises an upper template and a lower template, the top of the lower template is provided with an upper template, the upper template and the lower template are correspondingly arranged, the side surfaces of the upper template and the lower template are respectively correspondingly provided with handles with the same quantity and the corresponding positions, a casting cavity is arranged between the upper template and the lower template, the top of the upper template is provided with a casting hole, the casting hole is communicated with the inside of the casting cavity, the outer side surface of the upper template is provided with a slide rail, the slide rail is arranged around the upper template, the slide rail is provided with a bubble removing casting device in sliding connection, the bubble removing casting device is composed of a transmission mechanism, a rotating device and a vibrating device, the slide rail is provided with an adjusting mechanism in sliding connection, the adjusting mechanism is provided with a transmission mechanism, and the transmission mechanism is connected with the rotating device, the rotating device is provided with an oscillating device, and the rotating device and the oscillating device provide power through a transmission mechanism.
The adjusting mechanism is composed of a sliding block, a connecting block, an adjusting bolt, a first connecting rod and a second connecting rod, the sliding block is arranged in the sliding rail in a sliding connection mode, one end of the sliding block is connected with the connecting block, a rotating groove is formed in the connecting block, adjusting holes are formed in two sides of the rotating groove, the adjusting bolt is assembled in the adjusting holes, the first connecting rod is assembled on the adjusting bolt in a rotating connection mode, a connecting shaft in a rotating connection mode is arranged at the top of the first connecting rod, a rotating block is arranged at the top of the connecting shaft and rotates along the central axis of the connecting shaft, the second connecting rod is arranged on the rotating block, the central axes of the first connecting rod and the second connecting rod are 90 degrees, one end of the second connecting rod is connected with the rotating block, the other end of the second connecting rod is connected with the rotating device, and a transmission groove is formed in the second connecting rod, and a transmission mechanism is arranged in the transmission groove.
The rotating device is composed of a first tank body, a second tank body and a third tank body, a supporting block is arranged at the end part of the second connecting rod, two welding blocks which correspond up and down are arranged on the supporting block and are respectively welded with the outer peripheral surfaces of the second tank body and the second tank body, a third tank body is arranged at the top part of the second tank body, a first tank body is arranged at the top part of the third tank body, the third tank body is positioned between the first tank body and the second tank body and is connected in a rotating mode, a casting pipe is arranged at the bottom part of the second tank body, and the casting pipe is communicated with the inner parts of the first tank body, the second tank body and the third tank body.
The transmission mechanism is composed of a first transmission tooth, a second transmission tooth, a transmission chain, a motor and a transmission shaft, wherein the transmission groove is located on the central axis of the second connecting rod, the transmission groove penetrates through two sides of the second connecting rod, the transmission shaft is arranged in the transmission groove, the second transmission tooth is arranged on the transmission shaft, the first transmission tooth is arranged on the outer peripheral surface of the third tank body, the transmission chain which is meshed with the first transmission tooth is assembled on the first transmission tooth and the second transmission tooth, the motor is arranged at the top of the second connecting rod and located above the transmission groove, an output shaft of the motor is vertically connected with the transmission shaft downwards, a control switch is arranged on the first connecting rod, the motor is electrically connected with the control switch, and the control switch is electrically connected with an external power supply.
The outer peripheral surface of the third tank body is provided with an installation block with a ring-shaped structure, the first transmission gear is arranged on the outer peripheral surface of the installation block, the top and the bottom of the installation block are correspondingly provided with ring-shaped clamping blocks, the cross sections of the first tank body and the second tank body are correspondingly provided with ring-shaped clamping grooves, the ring-shaped clamping blocks at the top and the bottom of the installation block are respectively positioned in the ring-shaped clamping grooves on the first tank body and the second tank body to rotate, and the ring-shaped clamping blocks are assembled with the ring-shaped clamping grooves.
The internal a plurality of guide plate that is equipped with of third jar, the outer peripheral face of guide plate is connected with the inner wall of the third jar of body, the central axis equidistance that the guide plate prolongs the third jar of body is arranged, all be equipped with the equal dislocation set in water conservancy diversion hole and the water conservancy diversion hole on all guide plates on the guide plate.
The vibrating device is composed of vibrating protrusions and knocking rods, the vibrating protrusions are arranged on the outer peripheral face of the second tank body at equal intervals, a plurality of knocking rods extending downwards are arranged on the mounting block, and the knocking rods are arranged at equal intervals.
The bottom of the knocking rod is provided with a mounting groove, a ball is arranged in the mounting groove, and a return spring is arranged between the inner wall of the mounting groove and the ball.
Be equipped with the third connecting rod that upwards extends on the second connecting rod, be equipped with the spread groove on the third connecting rod, be equipped with the dwang of rotating the connection in the spread groove, the tip of dwang is equipped with the air duct, the air duct is 90 settings with the central axis of dwang, the both sides of dwang all are equipped with the stopper, the stopper is used for ensuring that the central axis of dwang and third connecting rod is 90 degrees
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
The bubble removal is carried out by arranging a rotating device and a vibrating device, the rotating device enables the metal liquid to generate centrifugal force to enable bubbles to gather to the center and float upwards, the air duct is inserted into the metal liquid to help the bubbles to be removed, the vibrating device enables small bubbles in the metal liquid to be removed, and a transmission mechanism is arranged to provide power for the rotating device and the vibrating device; the invention has simple and reasonable structure, can effectively carry out bubble exhaust treatment on the metal liquid before casting, and can effectively solve the problem that bubbles in the metal liquid are difficult to float upwards, thereby reducing the generation of shrinkage cavities of the cast casting.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an enlarged view of the structure at the point A;
FIG. 3 is an enlarged view of the structure at B of the present invention;
FIG. 4 is a schematic view of a third tank according to the present invention;
FIG. 5 is a sectional view of the third tank of the present invention;
FIG. 6 is a schematic view of the ball mounting structure of the present invention;
1. a lower template; 2. mounting a template; 3. a handle; 4. casting a cavity; 5. a slide rail; 6. a slider; 7. connecting blocks; 8. adjusting the bolt; 9. a first connecting rod; 10. rotating the block; 11. a second connecting rod; 12. a third connecting rod; 13. an air duct; 14. rotating the rod; 15. a limiting block; 16. a casting hole; 17. a casting tube; 18. a first tank; 19. a second tank; 20. a support block; 21. welding the blocks; 22. a motor; 23. vibrating the bump; 24. a knock bar; 25. a drive chain; 26. a first drive tooth; 27. a second gear; 28. a third tank body; 29. a connecting shaft; 30. a drive shaft; 31. mounting blocks; 32. a baffle; 33. a flow guide hole; 34. a ring-shaped clamping block; 35. mounting grooves; 36. a ball bearing; 37. a return spring.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
With reference to the accompanying drawings 1-6, the casting shrinkage-proof device for hot working casting comprises a mold and a handle 3, the mold is composed of an upper template 2 and a lower template 1, the top of the lower template 1 is provided with the upper template 2, the upper template 2 and the lower template 1 are correspondingly arranged, the side surfaces of the upper template 2 and the lower template 1 are correspondingly provided with the handles 3 with the same quantity and corresponding positions, a casting cavity 4 is arranged between the upper template 2 and the lower template 1, the top of the upper template 2 is provided with a casting hole 16, the casting hole 16 is communicated with the inside of the casting cavity, the outer side surface of the upper template 2 is provided with a slide rail 5, the slide rail 5 is arranged around the upper template 2, the slide rail 5 is provided with a bubble removing casting device in sliding connection, the bubble removing casting device is composed of a transmission mechanism, a rotation device and a vibration device, the slide rail 5 is provided with a sliding connection adjusting mechanism, the adjusting mechanism is provided with a transmission mechanism, the transmission mechanism is connected with the rotating device, the rotating device is provided with an oscillating device, and the rotating device and the oscillating device provide power through the transmission mechanism.
The adjusting mechanism is composed of a sliding block 6, a connecting block 7, an adjusting bolt 8, a first connecting rod 9 and a second connecting rod 11, the sliding block 6 is arranged in a sliding rail 5 in a sliding connection mode, one end of the sliding block 6 is connected with the connecting block 7, a rotating groove is formed in the connecting block 7, adjusting holes are formed in two sides of the rotating groove, the adjusting bolt 8 is assembled in each adjusting hole, the first connecting rod 9 in a rotating connection mode is assembled on the adjusting bolt 8, a connecting shaft 29 in a rotating connection mode is arranged at the top of the first connecting rod 9, a rotating block 10 is arranged at the top of the connecting shaft 29, the rotating block 10 rotates along the central axis of the connecting shaft 29, the second connecting rod 11 is arranged on the rotating block 10, the central axes of the first connecting rod 9 and the second connecting rod 11 form a 90 degrees, one end of the second connecting rod 11 is connected with the rotating block 10, and the other end of the second connecting rod 11 is connected with a rotating device, and a transmission groove is formed in the second connecting rod 11, and a transmission mechanism is arranged in the transmission groove.
The rotating device is composed of a first tank body 18, a second tank body 19 and a third tank body 28, a supporting block 20 is arranged at the end part of the second connecting rod 11, two welding blocks 21 which correspond up and down are arranged on the supporting block 20, the two welding blocks 21 are respectively welded with the outer peripheral surfaces of the second tank body 19 and the second tank body 19, the third tank body 28 is arranged at the top part of the second tank body 19, the first tank body 18 is arranged at the top part of the third tank body 28, the third tank body 28 is positioned between the first tank body 18 and the second tank body 19 and is in rotating connection with the first tank body 18, the casting pipe 17 is arranged at the bottom part of the second tank body 19, and the casting pipe 17 is communicated with the inner parts of the first tank body 18, the second tank body 19 and the third tank body 28.
The transmission mechanism comprises a first transmission tooth 26, a second transmission tooth 27, a transmission chain, a motor 22 and a transmission shaft 30, the transmission groove is positioned on the central axis of the second connecting rod 11, the transmission groove penetrates through two sides of the second connecting rod 11, the transmission shaft 30 is arranged in the transmission groove, the second transmission tooth 27 is arranged on the transmission shaft 30, the first transmission tooth 26 is arranged on the outer peripheral surface of the third tank body 28, the transmission chain meshed with the first transmission tooth 26 and the second transmission tooth 27 is assembled on the first transmission tooth 26, the motor 22 is arranged at the top of the second connecting rod 11, the motor 22 is positioned above the transmission groove, the output shaft of the motor 22 is vertically downwards connected with the transmission shaft 30, a control switch is arranged on the first connecting rod 9, the motor 22 is electrically connected with the control switch, and the control switch is electrically connected with an external power supply.
The outer peripheral surface of the third tank 28 is provided with an annular mounting block 31, the first transmission gear 26 is arranged on the outer peripheral surface of the mounting block 31, the top and the bottom of the mounting block 31 are correspondingly provided with annular clamping blocks 34, the cross sections of the first tank 18 and the second tank 19 are correspondingly provided with annular clamping grooves, the annular clamping blocks 34 at the top and the bottom of the mounting block 31 are respectively positioned in the annular clamping grooves on the first tank 18 and the second tank 19 to rotate, and the annular clamping blocks 34 are assembled with the annular clamping grooves.
A plurality of flow guide plates 32 are arranged in the third tank 28, the outer peripheral surfaces of the flow guide plates 32 are connected with the inner wall of the third tank 28, the flow guide plates 32 are arranged at equal intervals along the central axis of the third tank 28, flow guide holes 33 are formed in the flow guide plates 32, and the flow guide holes 33 in all the flow guide plates 32 are arranged in a staggered manner; the flow of the casting liquid can be slowed down by the guide holes 33 which are arranged in a staggered way.
The oscillating device is composed of oscillating protrusions 23 and knocking rods 24, the oscillating protrusions 23 are arranged on the outer peripheral surface of the second tank 19 at equal intervals, the installing block 31 is provided with a plurality of downwards extending knocking rods 24, and the knocking rods 24 are arranged at equal intervals.
The bottom of the knocking rod 24 is provided with an installation groove 35, a ball 36 is arranged in the installation groove 35, and a return spring 37 is arranged between the inner wall of the installation groove 35 and the ball 36; drive through first driving gear 26 when installation piece 31 and carry out the pivoted in-process, strike pole 24 and can rotate along with installation piece 31, strike and vibrate arch 23 when striking that pole 24 can not stop when pivoted, strike pole 24 and constitute for the elastic material, ball 36 can be through reset spring 37's effect repeated strike vibrating arch 23, vibrate arch 23 and vibrate second jar of body 19.
Be equipped with the third connecting rod 12 that upwards extends on the second connecting rod 11, be equipped with the spread groove on the third connecting rod 12, be equipped with the dwang 14 that rotates the connection in the spread groove, the tip of dwang 14 is equipped with air duct 13, air duct 13 is 90 settings with the central axis of dwang 14, the both sides of dwang 14 all are equipped with stopper 15, stopper 15 is used for ensuring that the central axis of dwang 14 and third connecting rod 12 is 90.
Embodiment 1, in the casting shrinkage-proof device for hot working casting, when in use, the sliding block 6 slides in the sliding rail 5 and the rotating block 10 is in rotating fit to find the casting hole 16, at this time, it is ensured that the casting pipe 17 and the casting hole 16 are the same central axis, so that it is ensured that the casting liquid can flow into the casting hole 16 along the casting pipe 17, at this time, the motor 22 is turned on through the control switch to enable the motor 22 to work, when the motor 22 works, the motor 22 drives the second transmission gear 27 to rotate, during the rotation of the second transmission gear 27, the second transmission gear 27 can drive the first transmission gear 26 to rotate, when the first transmission gear 26 rotates, the mounting block 31 is driven to synchronously rotate, when the mounting block 31 rotates, the third tank 28 rotates, at this time, molten metal liquid is cast inside the first tank 18, when the metal liquid enters the third tank 28 through the first tank 18, the metal liquid is blocked by the guide plate 32, the third tank 28 can make the metal liquid generate centrifugal force in the process of fast rotation, when the metal liquid generates centrifugal force, bubbles in the metal liquid can gather towards the middle, at this time, the guide holes 33 can guide the metal liquid without bubbles to the guide plate 32 on the next layer, when the mounting block 31 rotates, the mounting block 31 drives the knocking rod 24 to rotate, the balls 36 are positioned on the vibration boss 23 to perform contact knocking in the process of the rotation of the knocking rod 24, the metal liquid in the third tank 28 is vibrated by continuously knocking the vibration boss 23 to discharge the bubbles, because the third tank 28 is connected with the second tank 19 and the first tank 18, the vibration function can be transmitted to the third tank 28 and the first tank 18 when the second tank 19 is vibrated, the bubbles are gathered towards the middle under the centrifugal force action of the metal liquid, the rotating rod 14 is rotated at the moment, the air guide pipe 13 is inserted into the metal liquid, the air guide pipe 13 is of a hollow structure, the bubbles are difficult to float out of the metal liquid due to the high density of the metal liquid, the bubbles gathered in the middle of the metal liquid are discharged along the air guide pipe 13, the bubbles in the metal liquid can be basically discharged through the operation, and the generation of shrinkage cavities can be reduced by the metal liquid cast into the casting cavity 4 at the moment.
While the invention has been particularly shown and described with reference to a preferred embodiment, as well as a number of methods and instrumentalities for implementing the same, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a hole device is prevented shrinking by foundry goods for hot working casting, includes mould and handle (3), the mould comprises cope match-plate pattern (2) and lower bolster (1), the top of lower bolster (1) is equipped with cope match-plate pattern (2), cope match-plate pattern (2) correspond the setting with lower bolster (1), the side of cope match-plate pattern (2) and lower bolster (1) all corresponds handle (3) that are equipped with the same and position of quantity and correspond, be equipped with casting chamber (4) in the middle of cope match-plate pattern (2) and lower bolster (1), the top of cope match-plate pattern (2) is equipped with casting hole (16), casting hole (16) communicate characterized by with casting intracavity portion: be equipped with slide rail (5) on the lateral surface of cope match-plate pattern (2), slide rail (5) encircle cope match-plate pattern (2) setting, be equipped with sliding connection's bubble removal casting device on slide rail (5), bubble removal casting device comprises drive mechanism, rotary device and oscillation device, slide rail (5) are equipped with sliding connection's adjustment mechanism, are equipped with drive mechanism on the adjustment mechanism, drive mechanism is connected with rotary device, is equipped with oscillation device on the rotary device, rotary device and oscillation device provide power through drive mechanism.
2. The casting shrinkage-preventing device for hot working casting according to claim 1, wherein: adjustment mechanism comprises slider (6), connecting block (7), adjusting bolt (8), head rod (9) and second connecting rod (11), slide rail (5) inside is equipped with sliding connection's slider (6), the one end of slider (6) is connected with connecting block (7), is equipped with on connecting block (7) and rotates the groove, the both sides that rotate the groove are equipped with the regulation hole, adjusting bolt (8) have been assembled in the regulation hole, the head rod (9) of rotating the connection have been assembled on adjusting bolt (8), the top of head rod (9) is equipped with rotation connection axle (29), the top of connecting axle (29) is equipped with turning block (10), turning block (10) prolong the central axis rotation of connecting axle (29), be equipped with second connecting rod (11) on turning block (10), head rod (9) is 90 with the central axis of second connecting rod (11), one end of the second connecting rod (11) is connected with the rotating block (10), the other end of the second connecting rod (11) is connected with the rotating device, a transmission groove is formed in the second connecting rod (11), and a transmission mechanism is arranged inside the transmission groove.
3. The casting shrinkage-preventing device for hot working casting according to claim 2, wherein: the rotating device is composed of a first tank body (18), a second tank body (19) and a third tank body (28), a supporting block (20) is arranged at the end portion of the second connecting rod (11), two welding blocks (21) which correspond up and down are arranged on the supporting block (20), the two welding blocks (21) are respectively welded with the outer peripheral surfaces of the second tank body (19) and the second tank body (19), the third tank body (28) is arranged at the top of the second tank body (19), the first tank body (18) is arranged at the top of the third tank body (28), the third tank body (28) is located in the middle of the first tank body (18) and the second tank body (19) and is in rotating connection, a casting pipe (17) is arranged at the bottom of the second tank body (19), and the casting pipe (17) is communicated with the interior of the first tank body (18), the second tank body (19) and the interior of the third tank body (28).
4. The casting shrinkage-preventing device for hot working casting according to claim 3, wherein: the transmission mechanism comprises a first transmission tooth (26), a second transmission tooth (27), a transmission chain, a motor (22) and a transmission shaft (30), the transmission groove is positioned on the central axis of the second connecting rod (11), the transmission groove penetrates through the two sides of the second connecting rod (11), the transmission shaft (30) is arranged in the transmission groove, the second transmission tooth (27) is arranged on the transmission shaft (30), the first transmission tooth (26) is arranged on the outer peripheral surface of the third tank body (28), the transmission chain which is meshed with the first transmission tooth (26) and the second transmission tooth (27) is assembled on the first transmission tooth (26) and the second transmission tooth (27), the motor (22) is arranged at the top of the second connecting rod (11), the motor (22) is positioned above the transmission groove, the output shaft of the motor (22) is vertically and downwards connected with the transmission shaft (30), a control switch is arranged on the first connecting rod (9), and the motor (22) is electrically connected with the control switch, the control switch is electrically connected with an external power supply.
5. The casting shrinkage-preventing device for hot working casting according to claim 3, wherein: the outer peripheral surface of the third tank body (28) is provided with an installation block (31) with a ring-shaped structure, the first transmission teeth (26) are arranged on the outer peripheral surface of the installation block (31), the top and the bottom of the installation block (31) are correspondingly provided with ring-shaped clamping blocks (34), the cross sections of the first tank body (18) and the second tank body (19) are correspondingly provided with ring-shaped clamping grooves, the ring-shaped clamping blocks (34) at the top and the bottom of the installation block (31) are respectively positioned in the ring-shaped clamping grooves on the first tank body (18) and the second tank body (19) to rotate, and the ring-shaped clamping blocks (34) are assembled with the ring-shaped clamping grooves.
6. The casting shrinkage-proof device for hot-working casting according to any one of claims 3 to 5, wherein: be equipped with a plurality of guide plate (32) in the third jar of body (28), the outer peripheral face of guide plate (32) is connected with the inner wall of the third jar of body (28), the central axis equidistance that guide plate (32) prolonged the third jar of body (28) is arranged, all be equipped with water conservancy diversion hole (33) and all water conservancy diversion hole (33) on guide plate (32) and all the equal dislocation set of guide plate (32).
7. The casting shrinkage-preventing device for hot working casting according to claim 6, wherein: the vibrating device is composed of vibrating protrusions (23) and knocking rods (24), the vibrating protrusions (23) are arranged on the outer peripheral surface of the second tank body (19) at equal intervals, the installing block (31) is provided with a plurality of knocking rods (24) extending downwards, and the knocking rods (24) are arranged at equal intervals.
8. The casting anti-shrinkage device for hot-working casting according to claim 7, wherein: the bottom of the knocking rod (24) is provided with a mounting groove (35), a ball (36) is arranged in the mounting groove (35), and a return spring (37) is arranged between the inner wall of the mounting groove (35) and the ball (36).
9. The casting anti-shrinkage device for hot-working casting according to claim 7, wherein: be equipped with the third connecting rod (12) that upwards extends on second connecting rod (11), be equipped with the spread groove on third connecting rod (12), be equipped with dwang (14) that rotate the connection in the spread groove, the tip of dwang (14) is equipped with air duct (13), air duct (13) are 90 settings with the central axis of dwang (14), the both sides of dwang (14) all are equipped with stopper (15), stopper (15) are used for ensuring that the central axis of dwang (14) and third connecting rod (12) is 90.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210255294.7A CN114749611B (en) | 2022-03-16 | 2022-03-16 | Shrinkage cavity device is prevented with foundry goods to hot working casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210255294.7A CN114749611B (en) | 2022-03-16 | 2022-03-16 | Shrinkage cavity device is prevented with foundry goods to hot working casting |
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| Publication Number | Publication Date |
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| CN114749611A true CN114749611A (en) | 2022-07-15 |
| CN114749611B CN114749611B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210255294.7A Active CN114749611B (en) | 2022-03-16 | 2022-03-16 | Shrinkage cavity device is prevented with foundry goods to hot working casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116492887A (en) * | 2023-04-14 | 2023-07-28 | 南通凯恒生物科技发展有限公司 | Solution mixing device for producing low-carbon clean chromogenic substrate |
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|---|---|---|---|---|
| CN116492887A (en) * | 2023-04-14 | 2023-07-28 | 南通凯恒生物科技发展有限公司 | Solution mixing device for producing low-carbon clean chromogenic substrate |
| CN116492887B (en) * | 2023-04-14 | 2023-12-26 | 南通凯恒生物科技发展有限公司 | Solution mixing device for producing low-carbon clean chromogenic substrate |
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| CN114749611B (en) | 2023-06-23 |
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