CN112570667A - Casting mold frame - Google Patents
Casting mold frame Download PDFInfo
- Publication number
- CN112570667A CN112570667A CN202011446791.2A CN202011446791A CN112570667A CN 112570667 A CN112570667 A CN 112570667A CN 202011446791 A CN202011446791 A CN 202011446791A CN 112570667 A CN112570667 A CN 112570667A
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- Prior art keywords
- frame body
- sealing strip
- pipe
- sides
- cooling water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/04—Upset frames; Bottom boards or mould boards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a casting mold frame, which comprises a frame body, wherein two sides of the outer surface of the upper end of the frame body are respectively provided with a first sealing groove, the front end and the rear end of the outer surface of the upper end of the frame body are respectively provided with a first sealing strip, two sides of the outer surface of the lower end of the frame body are respectively provided with a second sealing strip, the front end and the rear end of the outer surface of the lower end of the frame body are respectively provided with a second sealing groove, the middle positions of the inner parts of the first sealing groove and the second sealing grooves are respectively provided with a top-out hole, the middle positions of the outer surfaces of the front end and the rear end of the frame body are respectively and movably provided with a first rotating disc, the middle positions of the outer surfaces of the two sides of the frame body are respectively and movably provided with a rotating shaft, the casting mold frame is convenient to demold after casting is finished, the sealing, the cost is reduced, and people can not be disturbed by the steam and burnt.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a casting mold frame.
Background
Casting is a metal hot working process which is earlier mastered by human, and is a method for casting liquid metal into a casting cavity adaptive to the shape of a part and obtaining the part or a blank after the liquid metal is cooled and solidified, wherein the casting cavity is formed by covering a mold frame on a mold core, but the existing mold frame has a simpler structure and certain defects: 1. when a plurality of groups of die frames are combined for use, after casting is finished, the adsorption force between a casting and the die frames is large, so that the die frames are difficult to demold, a crane can be used for lifting the die frames for demolding large castings, but the method is not suitable for small castings; 2. the sealing performance between the mould frames is poor; 3. the cooling speed of the metal solution in the mold frame is reduced, the traditional solution is to arrange an interlayer in the mold frame and inject cooling water into the interlayer, but the evaporation problem of the cooling water is not considered, so that a large amount of steam surrounds the periphery of an ore grinding, the sight is influenced, and meanwhile, people around the mold frame are easily burnt by the steam.
Disclosure of Invention
The invention aims to provide a casting mold frame which is convenient to demould after casting is finished, has good sealing performance among the mold frames, can improve the cooling speed of metal solution, can recycle steam formed by heating cooling water, reduces the cost, and does not interfere sight and burn people due to the steam.
The invention provides a casting mold frame, which comprises a frame body, wherein two sides of the outer surface of the upper end of the frame body are respectively provided with a first sealing groove, the front end and the rear end of the outer surface of the upper end of the frame body are respectively provided with a first sealing strip, two sides of the outer surface of the lower end of the frame body are respectively provided with a second sealing strip, the front end and the rear end of the outer surface of the lower end of the frame body are respectively provided with a second sealing groove, the middle positions of the inner parts of the first sealing groove and the second sealing groove are respectively provided with a top outlet hole, the middle positions of the outer surfaces of the front end and the rear end of the frame body are respectively and movably provided with a first rotating disc, the middle positions of the outer surfaces of the two sides of the frame body are respectively and movably provided with a rotating shaft, the outer surface of the rotating shaft is provided with a shaft groove, and an ejector rod penetrates through the inside of the gear, thread grooves are formed between the gear and the ejector rod and between the gear and the rotating shaft, the ejector rod penetrates through the inside of the ejection hole, and the shaft groove is meshed with the thread grooves.
Preferably, the first sealing strip and the second sealing strip are made of rubber materials, and first cooling water is filled in the first sealing strip and the second sealing strip.
Through inlaying first sealing strip and second sealing strip respectively to the inside of second seal groove and first seal groove, thereby realize the sealed of junction between two frameworks, pour the metal solution back when the framework is inside, the inside first cooling water of first sealing strip and second sealing strip is heated the evaporation and is formed vapor, thereby fill to the inside of whole first sealing strip and second sealing strip, along with constantly expanding of steam volume, bulging deformation takes place for first sealing strip and second sealing strip, thereby strengthen the extrusion of first sealing strip and second sealing strip to second seal groove and first seal groove, the leakproofness between the further improvement framework.
Preferably, the first cooling water is half of the internal volume of the first sealing strip and the second sealing strip.
Avoid first cooling water evaporation back steam volume great, lead to first sealing strip and second sealing strip to damage.
Preferably, the water inlet pipe is movably mounted at the upper end position of one side of the outer surface of the front end and the lower end position of the front outer surface of the rear end of the frame body, the exhaust pipe is movably mounted at the upper end position of the other side of the outer surface of the front end and the lower end position of the rear outer surface of the two sides of the frame body, the circulating pipe is movably mounted at the lower end position of one side of the outer surface of the front end and the lower end position of the outer surface of the rear end of the two sides of the frame body, the steam guide pipe is movably mounted between the circulating pipe and the exhaust pipe, the cooling box is arranged at the middle position of the steam guide pipe, the containing cavities.
Inside injecting the second cooling water into the framework through the inlet tube, utilize the second cooling water to cool down the metallic solution of framework parcel, thereby accelerate metallic solution's shaping speed, the second cooling water is arranged into the blast pipe by the gas vent after holding the inside evaporation of being heated of chamber, and cool off into the water droplet in leading-in cooler bin through the steam pipe, later leading-in chamber inside formation cooling cycle that holds of rethread circulating pipe, avoid the waste of second cooling water, prevent simultaneously that steam from directly discharging and causing the sight to disturb and to cause the burn to crowd around, steam pipe and cooler bin have certain inclination, be convenient for the flow of second cooling water.
Preferably, the volume of the second cooling water is half of the volume of the accommodating cavity, and one side of the steam guide pipe and the cooling box close to the circulating pipe is lower than one side close to the exhaust pipe.
The water volume of the second cooling water is one half of the volume of the cavity in the frame body during water injection, so that the situation that the steam cannot be discharged in time after the second cooling water is heated and evaporated is avoided, and the steam guide pipe and the cooling box have a certain inclination angle, so that the second cooling water can flow conveniently.
Preferably, the inside of the containing cavity is provided with an exhaust port and a circulating port corresponding to the exhaust pipe and the circulating pipe respectively, the upper end of the inside of the containing cavity is movably provided with a spray pipe, and the lower end of the outer surface of one side of the spray pipe close to the frame body is provided with a spray head.
During injecting the second cooling water into the spray pipe inside the frame body through the water inlet pipe, the volume half of the cavity is held for the frame body inside to ensure the water yield of the second cooling water during water injection, avoid the second cooling water to be heated and evaporated back steam can't be in time discharged, then the second cooling water is sprayed to the one side that holds the cavity and be close to the frame body through the shower nozzle to realize the cooling to metal solution for metal solution's shaping speed.
Preferably, the spray head and the spray pipe form an inclination angle of 45 degrees.
So that the second cooling water can be sprayed to one side of the accommodating cavity close to the frame body.
Advantageous effects
1. After casting, fixing between the frame bodies is removed, the first rotary disc and the second rotary disc are respectively rotated, the first rotary disc and the second rotary disc are utilized to drive the rotary shaft to rotate, the rotary shaft is meshed with a thread groove on the gear through the shaft groove to drive the gear to rotate, and then the gear and the ejector rod form relative rotation through the thread groove, so that the ejector rod in the lower frame body extends upwards from the ejector hole, the ejector rod in the upper frame body extends downwards from the ejector hole, the frame bodies are ejected upwards and downwards through the ejector rods in the upper frame body and the lower frame body, the distance between the two frame bodies is changed, the frame bodies and the casting are displaced, and demolding between the frame bodies and the casting is realized;
2. the first sealing strip and the second sealing strip are respectively embedded into the second sealing groove and the first sealing groove, so that the sealing of the joint between the two frame bodies is realized, after metal solution is poured into the frame bodies, first cooling water in the first sealing strip and the second sealing strip is heated and evaporated to form water vapor, so that the water vapor is filled into the whole first sealing strip and the whole second sealing strip, and the first sealing strip and the second sealing strip are subjected to expansion deformation along with the continuous expansion of the volume of the steam, so that the extrusion of the first sealing strip and the second sealing strip on the second sealing groove and the first sealing groove is increased, and the sealing performance between the frame bodies is further improved;
3. after the metal solution is poured into the frame body, second cooling water is injected into the spraying pipe in the frame body through the water inlet pipe, the water quantity of the second cooling water is one half of the volume of the containing cavity in the frame body during water injection, the situation that steam cannot be discharged in time after the second cooling water is heated and evaporated is avoided, then the second cooling water is sprayed onto one side, close to the frame body, of the containing cavity through the spray head, the metal solution is cooled, the forming speed of the metal solution is accelerated, the second cooling water is discharged into the exhaust pipe through the exhaust port after the second cooling water is heated and evaporated in the containing cavity, the second cooling water is guided into the cooling box through the steam guide pipe to be cooled into water drops, then the second cooling water is guided into the containing cavity through the circulating pipe to form a cooling circulation, the waste of the second cooling water is avoided, meanwhile, the direct discharge of the steam to, the flow of the second cooling water is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom schematic view of the present invention;
FIG. 3 is a view of the combination of the spindle and the first turntable;
FIG. 4 is a view of the present invention showing the shaft and ejector rod in combination;
FIG. 5 is a schematic view showing the structure of a first weather strip according to the present invention;
FIG. 6 is a combined view of a support beam, demister blades, and demister conduit of the present invention;
FIG. 7 is a combined view of a support beam, demister blades, and demister conduit of the present invention;
FIG. 8 is a combined view of a support beam, demister blades, and demister conduit of the present invention.
Description of reference numerals:
1. a frame body; 2. a first seal groove; 3. an ejection aperture; 4. a first seal strip; 5. a first turntable; 6. a second turntable; 7. a second seal strip; 8. a second seal strip; 9. a rotating shaft; 10. a shaft groove; 11. a gear; 12. ejecting the rod; 13. a thread groove; 14. first cooling water; 15. a water inlet pipe; 16. an exhaust pipe; 17. a circulation pipe; 18. a steam conduit; 19. a cooling tank; 20. a cavity; 21. second cooling water; 22. an exhaust port; 23. a shower pipe; 24. a spray head; 25. and a circulation port.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, the present invention provides a technical solution:
the utility model provides a casting mold frame, as shown in fig. 1 to 4, includes framework 1, first seal groove 2 has all been seted up to framework 1's upper end surface both sides, and both ends all are equipped with first sealing strip 4 around framework 1's the upper end surface, framework 1's lower extreme surface both sides all are equipped with second sealing strip 7, and framework 1's lower extreme surface both ends have all seted up second seal groove 8 around, ejection hole 3 has all been seted up to first seal groove 2 and second seal groove 8's inside intermediate position, framework 1's the equal movable mounting in both ends surface intermediate position has first carousel 5 around, and framework 1's the equal movable mounting in both sides surface intermediate position has second carousel 6, framework 1's the equal movable mounting in inside corresponding first carousel 5 of position with second carousel 6 has pivot 9, and pivot 9's surface has seted up axle slot 10, framework 1 inside both ends are located one side of pivot 9 and framework 1 inside both sides are located pivot 9's rear end 10 around both sides All movable mounting has gear 11, and the inside of gear 11 runs through there is knock-out pin 12, all be equipped with thread groove 13 between gear 11 and the knock-out pin 12 and between gear 11 and pivot 9, knock-out pin 12 runs through in the inside of ejecting hole 3, mesh between shaft groove 10 and the thread groove 13 mutually.
By adopting the technical scheme, firstly, one frame body 1 is covered on a mold core of a mold plate, the mold plate and the frame body 1 are fixed, then the frame body 1 is assembled according to the volume of a casting object to be cast, the other frame body 1 and the installed frame body 1 are vertically aligned and spliced, so that a second sealing strip 7 on the upper end frame body 1 is embedded into a first sealing groove 2 on the lower end frame body 1, a first sealing strip 4 on the lower end frame body 1 is embedded into a second sealing groove 8 on the upper end frame body 1, thereby sealing between the two frame bodies 1, then the assembled frame body 1 is fixed, then metal solution is injected into a mold cavity formed between the frame body 1 and the mold plate and the mold core, casting is completed after the metal solution is solidified and formed, after casting is completed, the fixation between the frame bodies 1 is removed, a first rotating disk 5 and a second rotating disk 6 are respectively rotated, and a rotating shaft 9 is driven by the first rotating disk 5 and the second, the rotating shaft 9 is meshed with a thread groove 13 on the gear 11 through a shaft groove 10 to drive the gear 11 to rotate, relative rotation is formed between the gear 11 and the ejector rod 12 through the thread groove 13, the ejector rod 12 in the lower end frame body 1 is upwards extended from the ejector hole 3, the ejector rod 12 in the upper end frame body 1 is downwards extended from the ejector hole 3, the frame body 1 is vertically ejected through the ejector rods 12 in the upper and lower frame bodies 1, the distance between the two frame bodies 1 is changed, displacement is caused between the frame body 1 and a casting, and demolding between the frame body 1 and the casting is realized.
As an embodiment of the present invention, as shown in fig. 5, the first seal strip 4 and the second seal strip 7 are made of rubber, the first cooling water 14 is filled in the first seal strip 4 and the second seal strip 7, the first cooling water 14 is half of the internal volume of the first seal strip 4 and the second seal strip 7, the first seal strip 4 and the second seal strip 7 are respectively embedded in the second seal groove 8 and the first seal groove 2, thereby sealing the connection between the two frame bodies 1, after the metal solution is poured in the frame body 1, the first cooling water 14 in the first seal strip 4 and the second seal strip 7 is heated and evaporated to form steam, thereby being filled in the whole first seal strip 4 and the second seal strip 7, and the first seal strip 4 and the second seal strip 7 are expanded and deformed with the continuous expansion of the steam volume, therefore, the extrusion of the first seal strip 4 and the second seal strip 7 to the second seal groove 8 and the first seal groove 2 is increased, and the sealing performance between the frame bodies 1 is further improved.
As an embodiment of the present invention, as shown in fig. 6 to 8, water inlet pipes 15 are movably installed at an upper end position of one side of outer surfaces of front and rear ends of the frame body 1 and at an upper end position of front ends of outer surfaces of both sides of the frame body 1, exhaust pipes 16 are movably installed at an upper end position of the other side of outer surfaces of front and rear ends of the frame body 1 and at an upper end position of rear ends of outer surfaces of both sides of the frame body 1, circulating pipes 17 are movably installed at a lower end position of one side of outer surfaces of front and rear ends of outer surfaces of both sides of the frame body 1 and at a lower end position of front ends of outer surfaces of both sides of the frame body 1, a steam pipe 18 is movably installed between the circulating pipes 17 and the exhaust pipes 16, a cooling tank 19 is disposed at a middle position of the steam pipe 18, a cavity 20 is formed around an inner periphery, one side of the steam guide pipe 18 and one side of the cooling box 19 close to the circulating pipe 17 are lower than one side close to the exhaust pipe 16, the inside of the cavity 20 corresponding to the exhaust pipe 16 and the circulating pipe 17 are respectively provided with an exhaust port 22 and a circulating port 25, the upper end inside the cavity 20 is movably provided with a spray pipe 23, the lower end of the outer surface of one side of the spray pipe 23 close to the frame body 1 is provided with a spray head 24, a 45-degree inclination angle is formed between the spray head 24 and the spray pipe 23, after the metal solution is poured into the frame body 1, the second cooling water 21 is injected into the spray pipe 23 inside the frame body 1 through a water inlet pipe 15, during water injection, the water quantity of the second cooling water 21 is ensured to be one half of the volume of the cavity 20 inside the frame body 1, the situation that the steam cannot be discharged in time after the second cooling water 21 is heated and evaporated is avoided, then the second cooling water 21, the forming speed of the metal solution is accelerated, the second cooling water 21 is heated and evaporated in the cavity 20 and then is discharged into the exhaust pipe 16 through the exhaust port 22, and is guided into the cooling box 19 through the steam guide pipe 18 to be cooled into water drops, and then is guided into the cavity 20 through the circulating pipe 17 to form cooling circulation, so that the waste of the second cooling water 21 is avoided, the direct emission of the steam is prevented from causing sight interference and burning to surrounding people, the steam guide pipe 18 and the cooling box 19 have a certain inclination angle, and the flowing of the second cooling water 21 is facilitated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A casting mold frame comprises a frame body (1) and is characterized in that two sides of the outer surface of the upper end of the frame body (1) are respectively provided with a first sealing groove (2), the front end and the rear end of the outer surface of the upper end of the frame body (1) are respectively provided with a first sealing strip (4), two sides of the outer surface of the lower end of the frame body (1) are respectively provided with a second sealing strip (7), the front end and the rear end of the outer surface of the lower end of the frame body (1) are respectively provided with a second sealing groove (8), ejection holes (3) are respectively formed in the middle positions of the inner parts of the first sealing groove (2) and the second sealing groove (8), the middle positions of the outer surfaces of the front end and the rear end of the frame body (1) are respectively and movably provided with a first rotating disc (5), the middle positions of the outer surfaces of the two sides of the frame body (1) are respectively and movably provided with a rotating, and the surface of pivot (9) has seted up axle slot (10), the equal movable mounting in one side that both ends are located pivot (9) around framework (1) is inside and rear end that framework (1) inside both sides are located pivot (9) has gear (11), and runs through ejector rod (12) in the inside of gear (11), all be equipped with thread groove (13) between gear (11) and ejector rod (12) and between gear (11) and pivot (9), ejector rod (12) run through in the inside of ejecting hole (3), mesh between axle slot (10) and thread groove (13).
2. A casting mold frame according to claim 1, characterized in that the first sealing strip (4) and the second sealing strip (7) are both made of rubber, and the first cooling water (14) is filled in the first sealing strip (4) and the second sealing strip (7).
3. A casting mould frame according to claim 2, characterised in that the first cooling water (14) is half the internal volume of the first (4) and second (7) sealing strips.
4. A casting mold frame according to claim 1, characterized in that the upper end position of one side of the outer surfaces of the front and rear ends of the frame body (1) and the upper end position of the front end of the outer surfaces of the two sides of the frame body (1) are movably provided with water inlet pipes (15), and the upper end position of the other side of the outer surfaces of the front end and the rear end of the frame body (1) and the upper end position of the rear end of the outer surfaces of the two sides of the frame body (1) are both movably provided with an exhaust pipe (16), the lower end positions of one side of the outer surfaces of the front end and the rear end of the frame body (1) and the lower end positions of the front end of the outer surfaces of the two sides of the frame body (1) are movably provided with circulating pipes (17), a steam guide pipe (18) is movably arranged between the circulating pipe (17) and the exhaust pipe (16), the steam guide pipe (18) is provided with a cooling box (19) in the middle, the inside of the frame body (1) is provided with a containing cavity (20) all around, and the inside of the containing cavity (20) is filled with second cooling water (21).
5. A casting pattern according to claim 4, characterized in that the volume of the second cooling water (21) is half of the volume of the chamber (20), and the steam conduit (18) and the cooling box (19) are lower on the side close to the circulation duct (17) than on the side close to the exhaust duct (16).
6. The casting mold frame according to claim 4, wherein an exhaust port (22) and a circulation port (25) are respectively formed in the cavity (20) corresponding to the exhaust pipe (16) and the circulation pipe (17), a spray pipe (23) is movably mounted at the upper end of the cavity (20), and a spray head (24) is arranged at the lower end of the outer surface of one side of the spray pipe (23) close to the frame body (1).
7. A casting mould according to claim 5, characterized in that the nozzles (24) are inclined at an angle of 45 ° to the spray pipes (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011446791.2A CN112570667A (en) | 2020-12-08 | 2020-12-08 | Casting mold frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011446791.2A CN112570667A (en) | 2020-12-08 | 2020-12-08 | Casting mold frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112570667A true CN112570667A (en) | 2021-03-30 |
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ID=75131695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011446791.2A Pending CN112570667A (en) | 2020-12-08 | 2020-12-08 | Casting mold frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN112570667A (en) |
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| CN210387487U (en) * | 2018-12-20 | 2020-04-24 | 江苏奋杰有色金属制品有限公司 | Aluminum ingot cooling system |
| CN210679584U (en) * | 2019-07-23 | 2020-06-05 | 江西品和科技有限公司 | Novel injection mold cooling device |
| CN211614270U (en) * | 2019-12-26 | 2020-10-02 | 重庆腾瑞模具制造有限公司 | Aluminum alloy die-casting die with few flash |
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- 2020-12-08 CN CN202011446791.2A patent/CN112570667A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499517A (en) * | 2015-12-12 | 2016-04-20 | 重庆市永川区华益机械铸造有限责任公司 | Casting mould frame |
| CN208004759U (en) * | 2018-03-30 | 2018-10-26 | 新兴铸管股份有限公司 | Water-cooling type centrifuge |
| CN208221077U (en) * | 2018-04-25 | 2018-12-11 | 武安市永盛机械泵业有限公司 | A kind of pump cover sealing mechanism of hot oil pump |
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| CN210387487U (en) * | 2018-12-20 | 2020-04-24 | 江苏奋杰有色金属制品有限公司 | Aluminum ingot cooling system |
| CN210257111U (en) * | 2019-05-14 | 2020-04-07 | 福建和动力智能科技有限公司 | Structure convenient for demoulding of injection mould |
| CN210172196U (en) * | 2019-06-12 | 2020-03-24 | 山东钢铁股份有限公司 | Hot rolling stick wire rod cooling device |
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| CN211614270U (en) * | 2019-12-26 | 2020-10-02 | 重庆腾瑞模具制造有限公司 | Aluminum alloy die-casting die with few flash |
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