CN110976815A - Die water cooling device and system - Google Patents
Die water cooling device and system Download PDFInfo
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- CN110976815A CN110976815A CN201911390671.2A CN201911390671A CN110976815A CN 110976815 A CN110976815 A CN 110976815A CN 201911390671 A CN201911390671 A CN 201911390671A CN 110976815 A CN110976815 A CN 110976815A
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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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Abstract
The invention belongs to the technical field of casting water cooling, and provides a mold water cooling device and a mold water cooling system.
Description
Technical Field
The application relates to the technical field of casting water cooling, in particular to a mold water cooling device and system.
Background
The low-pressure casting die for the aluminum alloy wheel comprises a top die, a bottom die, side dies, a die carrier and other main components, and in order to realize high-efficiency and rapid solidification of thick and large parts of a casting, an annular water cooling disc is usually arranged at the center position of the top die, the center position of the bottom die or the outer rim position of the bottom die, and heat in a high-temperature casting is taken away in a heat exchange mode through a low-temperature cooling medium in the water cooling disc. In actual casting production it is found that: because the cooling channel of conventional annular water-cooling disc is the same apart from the distance on foundry goods surface, the cooling water is at the continuous heat absorption of the in-process that flows, leads to the difference in temperature of water in the cooling channel great, and the cooling that is close to annular water-cooling disc intake end is too strong, is close to the cooling of water dish play water end not enough to lead to the foundry goods because of the cooling inequality in the solidification process, produce the shrinkage porosity defect, or because of the uneven stress crack defect that leads to the internal stress is too big appears of cooling inequality.
Disclosure of Invention
The embodiment of the application provides a mould water cooling plant and system, can effectively promote foundry goods cooling homogeneity, reduces the cooling inequality and leads to the possibility of foundry goods shrinkage porosity or foundry goods stress crack to effectively promote the casting yield.
In order to achieve the purpose, the invention provides the following technical scheme:
the first aspect provides a die water cooling device which comprises a water cooling channel, wherein the die water cooling device is arranged around a die, and a contact part of the die water cooling device and the die is a cooling surface; the distance between the water-cooling channel and the cooling surface at the water inlet is greater than that between the water-cooling channel and the cooling surface at the water outlet, and the distance between the water-cooling channel and the cooling surface is uniformly changed from top to bottom.
In some embodiments, the difference between the distance H of the water-cooling channel from the cooling surface at the water inlet and the distance H of the water-cooling channel from the cooling surface at the water outlet is Δ H, Δ H is not less than Kh, K is not less than 1 and not more than 1.5, and the value of K is in direct proportion to the diameter of the inner circle of the water-cooling device of the mold.
In some embodiments, the water cooling channels have water inlets at the upper part and water outlets at the lower part, and more than two groups of water cooling channels are arranged and uniformly distributed along the circumference.
In a second aspect, an embodiment of the present application provides an annular water-cooling disc, where a contact position between the annular water-cooling disc and a mold is a cooling surface; include the inside spiral setting's of annular water-cooling dish water-cooling channel, water-cooling channel is greater than at the distance of water inlet department apart from the cooling surface water-cooling channel is in the distance of water outlet department apart from the cooling surface, and the distance from the top down uniform variation of water-cooling channel apart from the cooling surface.
In some embodiments, the water cooling channels have water inlets at the upper part and water outlets at the lower part, and more than two groups of water cooling channels are arranged and uniformly distributed along the circumference.
In some embodiments, there are two groups of the water cooling channels, the water inlets of the water cooling channels are located at the upper part of the annular water cooling disc, and the water outlets of the water cooling channels are located at the lower part of the annular water cooling disc; the two groups of water-cooling channels are respectively arranged in the two semicircular rings of the annular water-cooling disc, and the two groups of water-cooling channels are in 180-degree rotational symmetry around the central axis of the annular water-cooling disc.
In some embodiments, the difference between the distance H1 from the cooling surface at the water inlet of the first set of water-cooling channels and the distance H2 from the cooling surface at the water outlet of the first set of water-cooling channels is Δ H1; the difference between the distance H3 between the water-cooling channel of the second group and the cooling surface at the water inlet and the distance H4 between the water-cooling channel of the second group and the cooling surface at the water outlet is delta H2; Δ H1= Δ H2.
In some embodiments, Δ H1 is more than or equal to Kh2, Δ H2 is more than or equal to Kh4, K is more than or equal to 1 and less than or equal to 1.5, and the value of K is in direct proportion to the diameter of the inner circle of the water cooling device of the die.
In a third aspect, an embodiment of the present application provides a water cooling system for a casting mold, including a water cooling channel, where the water cooling channel is arranged inside the mold, and an inner surface of a mold cavity is a cooling surface; the water-cooling channel is arranged around the die cavity, the distance from the water inlet to the cooling surface of the water-cooling channel is greater than the distance from the water outlet to the cooling surface of the water-cooling channel, and the distance from the water-cooling channel to the cooling surface is uniformly changed from top to bottom.
In some embodiments, the water cooling channel has a water inlet at an upper portion and a water outlet at a lower portion; the water-cooling channel is spirally arranged, more than two groups of water-cooling channels are arranged, and the water-cooling channels are uniformly distributed along the circumference of the die cavity.
In a fourth aspect, the embodiment of the application provides a water cooling system for a wheel casting mold, which comprises water cooling channels arranged inside a top mold, a side mold and a bottom mold, wherein the water cooling channel in the top mold is arranged above a mold cavity, the water cooling channel in the side mold is arranged around the mold cavity, the water cooling channel in the bottom mold is arranged below the mold cavity, and the inner surface of the mold cavity is a cooling surface; the distance between the water-cooling channel and the cooling surface at the water inlet is greater than that between the water-cooling channel and the cooling surface at the water outlet, and the distance between the water-cooling channel and the cooling surface is uniformly changed from top to bottom.
In some embodiments, more than two groups of water cooling channels are arranged in the top die, are uniformly distributed along the circumference of the top die and are spirally arranged in the top die, the water inlet of the water cooling channel in the top die is arranged at the upper part, and the water outlet of the water cooling channel in the top die is arranged at the lower part; more than two groups of water cooling channels are arranged in the bottom die, are uniformly distributed along the circumference of the bottom die and are spirally arranged in the bottom die, a water inlet of the water cooling channel in the bottom die is arranged at the lower part, and a water outlet of the water cooling channel in the bottom die is arranged at the upper part; in the side die, a water inlet of the water cooling channel is arranged at the upper part, and a water outlet is arranged at the lower part; and the water cooling channel in the side die is spirally arranged.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a die water cooling device and a die water cooling system, wherein the distance from a water inlet of a water cooling channel to a cooling surface is larger than the distance from the water outlet of the water cooling channel to the cooling surface, and the distance from the water cooling channel to the cooling surface is uniformly changed from top to bottom, so that the water temperature difference of cooling water in the process of flowing through the water cooling channel is smaller, the cooling uniformity of a casting in a casting die is more uniform, the cooling uniformity of the casting can be effectively improved, the possibility of casting shrinkage porosity or stress crack of the casting caused by non-uniform cooling is reduced, and the yield of the cast product is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mold water cooling device in embodiment 1 of the present application.
Fig. 2 is a structural plan view of a mold water cooling device in embodiment 2 of the present application.
Fig. 3 is a left side view and a right side view of a water cooling device for a mold in embodiment 2 of the present application.
Fig. 4 is a top view of an annular water-cooling disk in embodiment 3 of the present application.
Fig. 5 is a sectional view along L-L of an annular water-cooled disc in embodiment 3 of the present application.
FIG. 6 is a cross-sectional view taken along R-R of an annular water-cooled disc in example 3 of the present application.
FIG. 7 is a cross-sectional view taken along U-U of an annular water-cooled disc in example 3 of the present application.
Fig. 8 is a schematic structural diagram of a water cooling system of a wheel casting mold in embodiment 4 of the present application.
Fig. 9 is a schematic structural diagram of a water cooling system of a casting mold in embodiment 5 of the present application.
Wherein: 100-mold water cooling device, 1-water cooling channel, 2-water inlet, 3-water outlet, 4-cooling surface, 300-annular water cooling disc, 5-upper mold, 6-side mold and 7-bottom mold.
Detailed Description
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
Example 1:
mould water cooling plant commonly used today, because the casting surface distance in cooling channel apart from the mould is the same, the cooling water can heat up gradually after getting into cooling channel, the temperature difference that leads to in the cooling channel is great, cause the cooling that is close to the cooling channel water inlet end too strong, the cooling that is close to the cooling channel water outlet end is not enough, thereby lead to the foundry goods to lead to shrinking the pine defect because of the cooling inequality in the solidification process, or lead to the too big stress crack defect that appears of internal stress because of the cooling inequality, the qualification rate of cast product has been influenced.
In order to solve the above problem, the present embodiment provides a mold water cooling device 100, as shown in fig. 1, which includes a water cooling channel 1, the water cooling channel 1 is spirally disposed in the mold water cooling device 100 from top to bottom, the mold water cooling device 100 is disposed around a mold, and a contact position between the mold water cooling device 100 and the mold is a cooling surface 4; the distance between the water cooling channel 1 and the cooling surface 4 at the water inlet 2 is greater than that between the water cooling channel 1 and the cooling surface 4 at the water outlet 3, and the distance between the water cooling channel 1 and the cooling surface is uniformly changed from top to bottom. The cooling water flows in from the water inlet 2, flows along the water cooling channel 1 to cool the die, and finally flows out from the water outlet 3. The difference between the distance H from the water inlet 2 to the cooling surface 4 of the water cooling channel 1 and the distance H from the water outlet 3 to the cooling surface 4 of the water cooling channel is Δ H, Δ H = H-H, Δ H can be set reasonably according to the diameter and height of the inner circle of the mold water cooling device 100, in embodiment 1, H =3H, and Δ H = 2H.
In the cooling water flowing and heat absorbing process of the embodiment 1, the distance between the water cooling channel 1 and the cooling surface 4 is changed, the distance between the water cooling channel 1 and the cooling surface 4 is reduced from top to bottom, the heat conduction rate between the cooling surface 4 of the mold water cooling device 100 and the cooling water is balanced, the uniformity of heat exchange is finally realized, the uniformity of cooling of a casting in the mold is ensured, and therefore the casting defects of casting shrinkage porosity, stress concentration and the like caused by uneven cooling of the casting can be reduced.
In some embodiments, the difference between the distance H of the water cooling channel 1 from the cooling surface 4 at the water inlet 2 and the distance H of the water cooling channel from the cooling surface 4 at the water outlet 3 is Δ H, Δ H is not less than Kh, K is not less than 1 and not more than 1.5, and the value of K is in direct proportion to the diameter of the inner circle of the water cooling device of the mold, and this embodiment limits the minimum value of Δ H to H.
Example 2:
In this embodiment 2, cooling water flows in from the water inlet 2 on the upper portion, flows out from the water outlet 3 after absorbing heat, and through the design of the distance change between the water cooling channel 1 and the cooling surface 4, the distance between the water cooling channel 1 and the cooling surface 4 is gradually reduced from top to bottom to balance the heat conduction rate between the cooling surface 4 of the mold water cooling device 100 and the cooling water, so that the uniformity of heat exchange is finally realized, the uniformity of cooling of a casting in the mold is ensured, and thus the casting defects of shrinkage porosity, stress concentration and the like of the casting caused by uneven cooling of the casting can be alleviated. In addition, the die water cooling device 100 is divided into two parts along the circumference, each part is provided with a group of water cooling channels 1, the groups of water cooling channels 1 can be used in parallel, cooling liquid is introduced from the water inlet 2 and flows out from the water outlet 3 at the same time, the water temperature difference of the cooling water in the water cooling channels 1 is further reduced, the cooling uniformity of castings in the casting die is effectively improved, and the defect generation rate is reduced.
In some embodiments, Δ H is greater than or equal to Kh, K is greater than or equal to 1 and less than or equal to 1.5, and the value of K is in direct proportion to the diameter of the inner circle of the water cooling device of the die, and the embodiment limits the minimum value of Δ H to H.
In other embodiments, the water-cooling channels 1 may be provided with multiple groups, for example, 3 groups, 4 groups, 5 groups, and so on, the multiple groups of water-cooling channels 1 are uniformly distributed along the circumference, and are all provided with water inlets at the upper part and water outlets at the lower part, the multiple groups of water-cooling channels 1 equally divide the mold water-cooling device 100 into multiple cooling parts (for example, the water-cooling channels 1 are provided with 3 groups, each group occupies 120 degrees of the circumference, that is, 1/3), the groups of water-cooling channels may be used in parallel, and all simultaneously introduce cooling liquid from the water inlets 2 and flow out the cooling liquid from the water outlets 3, so as to further reduce the water temperature difference of the cooling water in the water-cooling channels 1, effectively improve the cooling uniformity.
Example 3:
as shown in fig. 4-7, in the present embodiment 3, an annular water-cooling disc 300 is provided, where the annular water-cooling disc 300 is detachably installed at a central position of an upper surface of a top mold, a central position of a lower surface of a bottom mold, or an outer rim of the bottom mold, and a contact position between the annular water-cooling disc 300 and the mold is a cooling surface 4, that is, an annular bottom surface of the annular water-cooling disc 300 is the cooling surface 4; include the inside spiral setting's of annular water-cooling dish 300 water-cooling passageway 1, water-cooling passageway 1 is greater than in 2 distances of locating from cooling surface 4 of water inlet water-cooling passageway 1 is in 3 distances of locating from cooling surface 4 of delivery port, and the distance from the top down uniform variation of water-cooling passageway 1 distance from cooling surface 4. Two groups of water cooling channels 1 are arranged, water inlets 2 of the water cooling channels 1 are located at the upper part of the annular water cooling disc 300, and water outlets 3 of the water cooling channels 1 are located at the lower part of the annular water cooling disc 300; the two groups of water-cooling channels 1 are respectively arranged in two semicircular rings of the annular water-cooling disc 300, and the two groups of water-cooling channels 1 are in 180-degree rotational symmetry around the vertical central axis of the annular water-cooling disc. As shown in FIG. 6, the difference between the distance H1 from the cooling surface 4 at the water inlet 2 of the first group of the water-cooling channels 1 and the distance H2 from the cooling surface 4 at the water outlet 3 of the first group of the water-cooling channels 1 is Δ H1. As shown in fig. 5, the difference between the distance H3 from the cooling surface 4 at the water inlet 2 of the second group of the water-cooling channels 1 and the distance H4 from the cooling surface 4 at the water outlet 3 of the second group of the water-cooling channels 1 is Δ H2; Δ H1= Δ H2. Wherein, the delta H1 and the delta H2 can be reasonably arranged according to the diameter of the inner circle of the annular water-cooling disc 300, the delta H1 is more than or equal to Kh2, the delta H2 is more than or equal to Kh4, K is more than or equal to 1 and less than or equal to 1.5, and the value of K is in direct proportion to the diameter of the inner circle of the water-cooling device of the die.
Because the cooling water can heat up gradually after getting into cooling channel, for guaranteeing annular cooling surface heat exchange rate's homogeneity, through the distance of design cooling channel 1 and cooling surface 4 in this embodiment 3, promptly water-cooling channel 1 is greater than apart from cooling surface 4 at water inlet 2 the distance of water-cooling channel 1 apart from cooling surface 4 in delivery port 3, and the even change from the top down of the distance of water-cooling channel 1 apart from cooling surface 4 comes the heat conduction rate between the cooling surface of balanced annular water-cooling dish and the coolant liquid, has finally realized the homogeneity of heat exchange, has guaranteed the refrigerated homogeneity of foundry goods to can slow down because of casting cooling inequality leads to casting defects such as foundry goods shrinkage porosity, stress concentration.
In other embodiments, the water-cooling channels 1 are provided with multiple groups, for example, 3 groups, 4 groups, 5 groups, and the like, the water inlet 2 of each water-cooling channel 1 is at the upper part, the water outlet 3 is at the lower part, and more than two groups of the water-cooling channels 1 are uniformly distributed along the circumference (for example, the water-cooling channels are provided with 4 groups, each group of the water-cooling channels occupies 90 degrees of the circumference, that is, 1/4), the water-cooling channels of each group can be used in parallel, and all the water-cooling channels simultaneously feed cooling liquid from the water inlet 2 and flow out the cooling liquid from the water outlet 3, so that the water temperature difference of the cooling water in the water-cooling channels 1 is further reduced, the cooling.
Example 4:
the embodiment 4 of the present application provides a water cooling system for a wheel casting mold, as shown in fig. 8, the casting mold includes a top mold 5, a side mold 6 and a bottom mold 7, the water cooling system for a casting mold includes water cooling channels 1 disposed in the top mold 5, the side mold 6 and the bottom mold 7, the water cooling channels 1 are disposed inside the mold, the water cooling channels 1 in the top mold 5 are disposed above a mold cavity, the water cooling channels 1 in the side mold 6 are disposed around the mold cavity, the water cooling channels 1 in the bottom mold 7 are disposed below the mold cavity, and an inner surface of the mold cavity is a cooling surface; the distance between the water-cooling channel 1 and the cooling surface at the water inlet is greater than that between the water-cooling channel and the cooling surface at the water outlet, and the distance between the water-cooling channel and the cooling surface is uniformly changed from top to bottom.
In the top die 5: the two groups of water cooling channels 1 are spirally arranged in the top die 5 and are uniformly distributed along the circumference of the top die 5, water inlets of the water cooling channels 1 are all positioned at the upper part of the top die 5, and water outlets of the water cooling channels 1 are all positioned at the lower part of the top die 5; the two groups of water-cooling channels 1 are respectively arranged in the two semicircular rings of the top die 5, and the two groups of water-cooling channels 1 are in 180-degree rotational symmetry around the vertical central axis of the top die 5. The difference between the distance from the water inlet of the first group of water-cooling channels 1 of the top die 5 to the cooling surface and the distance from the water outlet of the first group of water-cooling channels 1 of the top die 5 to the cooling surface is delta h1> 0. The difference between the distance from the water inlet of the second group of water-cooling channels 1 of the top die 5 to the cooling surface and the distance from the water outlet of the second group of water-cooling channels 1 of the top die 5 to the cooling surface is delta h2> 0; Δ h1= Δ h 2. Wherein Δ h1 and Δ h2 can be set reasonably according to the diameter of the top die 5.
In the bottom die 7: the water cooling channels 1 are arranged in two groups, and are spirally arranged in the bottom die 7 and uniformly distributed along the circumference of the bottom die 7, water inlets of the water cooling channels 1 are all positioned at the lower part of the bottom die 7, and water outlets of the water cooling channels 1 are all positioned at the upper part of the bottom die 7; the two groups of water-cooling channels 1 are respectively arranged in the two semicircular rings of the bottom die 7, and the two groups of water-cooling channels 1 are in 180-degree rotational symmetry around the vertical central axis of the bottom die 7. The difference between the distance from the water inlet to the cooling surface of the first group of water-cooling channels 1 of the bottom die 7 and the distance from the water outlet to the cooling surface of the first group of water-cooling channels 1 of the bottom die 7 is delta h3> 0. The difference between the distance from the water inlet of the second group of water-cooling channels 1 of the bottom die 7 to the cooling surface and the distance from the water outlet of the second group of water-cooling channels 1 of the bottom die 7 to the cooling surface is delta h4> 0; Δ h3= Δ h 4. Wherein, the delta h3 and the delta h4 can be reasonably arranged according to the diameter of the bottom die 7.
In the side mold 6: the water inlet of the water cooling channel 1 is arranged at the upper part, and the water outlet is arranged at the lower part; the water-cooling channel is spirally arranged, the difference between the distance from the water inlet to the cooling surface of the water-cooling channel 1 and the distance from the water outlet to the cooling surface of the water-cooling channel is delta h5>0, and delta h5 can be reasonably arranged according to the diameter and height of the inner circle of the side die 6 and the length of the water-cooling channel.
Because the cooling water can heat up gradually after getting into cooling channel, for guaranteeing cooling surface heat exchange rate's homogeneity, through the distance of design cooling channel 1 and cooling surface in this embodiment 4, promptly water-cooling channel 1 is greater than apart from the cooling surface at the water inlet distance of water-cooling channel 1 is apart from the cooling surface at the water outlet, and the distance from the top down uniform variation of water-cooling channel apart from the cooling surface comes the heat conduction rate between the cooling surface of balanced top mould, side forms and die block and the coolant liquid, has finally realized the homogeneity of heat exchange, has guaranteed the refrigerated homogeneity of foundry goods to can slow down and lead to casting defects such as foundry goods shrinkage porosity, stress concentration because of the foundry goods cooling inequality.
In other embodiments, a plurality of sets of the water cooling channels 1, such as 3 sets, 4 sets, 5 sets, etc., may be provided in the top mold 5 and the bottom mold 7. The multiple groups of water cooling channels are uniformly distributed along the circumference of the top die or the bottom die, so that the top die or the bottom die can be divided into uniform parts, the assembly of the die is convenient, for example, 4 groups of water cooling channels are arranged in the top die, and each group of water cooling channels occupy 90 degrees of the top die, namely 1/4.
In other embodiments, the cooling channels in the side die 6 can be set to be more than two groups, more than two groups the water cooling channels are uniformly distributed along the circumference of the die cavity, the water inlet of each water cooling channel is arranged at the upper part, the water outlet is arranged at the lower part, thus each group of water cooling channels of the side die and the side die can be uniformly divided into a plurality of parts along the circumference, each group of water cooling channels of the side die 6 can be used in parallel, cooling liquid is introduced from the water inlet at the same time, the cooling liquid flows out from the water outlet, the temperature difference of the cooling water in the water cooling channels is further reduced, the cooling uniformity of castings in the casting die is effectively improved, and the generation rate of defects.
Example 5:
the embodiment 5 of the application provides a water cooling system for a casting mold, as shown in fig. 9, the water cooling system comprises a water cooling channel 1, wherein the water cooling channel 1 is arranged around a mold cavity, the water cooling channel 1 is spirally arranged inside the mold, the inner surface of the mold cavity is a cooling surface 4, and the water cooling channel 1 is spirally arranged around the mold cavity from top to bottom; the distance from the water cooling channel 1 to the cooling surface 4 at the water inlet 2 is greater than the distance from the water cooling channel 1 to the cooling surface at the water outlet 3, and the distance from the water cooling channel to the cooling surface is uniformly changed from top to bottom. The difference between the distance from the water inlet 2 of the water cooling channel 1 to the cooling surface 4 and the distance from the water outlet 3 of the water cooling channel 1 to the cooling surface is delta h6>0, and the delta h6 can be reasonably set according to the diameter and height of the inner circle of the die cavity and the length of the water cooling channel. On the same hand, through the distance of design cooling channel 1 and cooling surface in this embodiment 5, promptly water-cooling channel 1 is greater than at the distance of water inlet department apart from the cooling surface water-cooling channel 1 is in the distance of water outlet department apart from the cooling surface, and the distance from the top down uniform variation of water-cooling channel apart from the cooling surface comes the heat conduction rate between balanced cooling surface and the coolant liquid, has finally realized the homogeneity of heat exchange, has guaranteed the refrigerated homogeneity of foundry goods to can slow down because of the casting defects such as casting shrinkage porosity, stress concentration that lead to of foundry goods cooling inequality.
In another embodiment, the water-cooling passageway can be provided with more than two sets of (for example 2 groups, 3 groups, 4 groups, 5 groups etc.), the water inlet of water-cooling passageway is in upper portion, and the delivery port is in the lower part, every the water-cooling passageway is spiral setting, and more than two sets of the circumference evenly distributed of water-cooling passageway along mould cavity, and casting mould and water-cooling passageway can be even divide into several parts along the circumference like this, the installation and the dismantlement of the mould of being convenient for, and each group of water-cooling passageway can parallelly connected use, lets in the coolant liquid from the water inlet simultaneously, flows out the coolant liquid from the delivery port, has further reduced the temperature difference of cooling water in the water-cooling passageway, has effectively improved the cooling homogeneity of foundry goods in the casting mould.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (12)
1. A mould water cooling device comprises a water cooling channel, the mould water cooling device is arranged around a mould, and the contact position of the mould water cooling device and the mould is a cooling surface; the water cooling device is characterized in that the distance from the water inlet of the water cooling channel to the cooling surface is greater than the distance from the water outlet of the water cooling channel to the cooling surface, and the distance from the water cooling channel to the cooling surface is changed uniformly from top to bottom.
2. The die water cooling device as claimed in claim 1, wherein the difference between the distance H of the water cooling channel from the cooling surface at the water inlet and the distance H of the water cooling channel from the cooling surface at the water outlet is Δ H, Δ H is not less than Kh, K is not less than 1 and not more than 1.5, and the value of K is in direct proportion to the diameter of the inner circle of the die water cooling device.
3. The mold water cooling device as claimed in claim 1, wherein the water cooling channel has water inlet at upper part and water outlet at lower part, and more than two groups of the water cooling channels are arranged and distributed uniformly along the circumference.
4. The contact part of the annular water-cooling disc and the mold is a cooling surface; the annular water-cooling disc is characterized by comprising a water-cooling channel spirally arranged inside the annular water-cooling disc, wherein the distance from the water-cooling channel to a cooling surface at a water inlet is greater than the distance from the water-cooling channel to the cooling surface at a water outlet, and the distance from the water-cooling channel to the cooling surface is uniformly changed from top to bottom.
5. The annular water-cooling disc as claimed in claim 4, wherein the water-cooling channels have water inlets at the upper part and water outlets at the lower part, and more than two groups of the water-cooling channels are arranged and are uniformly distributed along the circumference.
6. The annular water-cooling disc as claimed in claim 4, wherein there are two groups of the water-cooling channels, the water inlets of the water-cooling channels are located at the upper part of the annular water-cooling disc, and the water outlets of the water-cooling channels are located at the lower part of the annular water-cooling disc; the two groups of water-cooling channels are respectively arranged in the two semicircular rings of the annular water-cooling disc, and the two groups of water-cooling channels are in 180-degree rotational symmetry around the central axis of the annular water-cooling disc.
7. The annular water-cooling disc as claimed in claim 6, wherein the difference between the distance H1 from the cooling surface at the water inlet of the first group of said water-cooling passages and the distance H2 from the cooling surface at the water outlet of the first group of said water-cooling passages is Δ H1; the difference between the distance H3 between the water-cooling channel of the second group and the cooling surface at the water inlet and the distance H4 between the water-cooling channel of the second group and the cooling surface at the water outlet is delta H2; Δ H1= Δ H2.
8. The annular water-cooling disc as claimed in claim 7, wherein Δ H1 is not less than Kh2, Δ H2 is not less than Kh4, K is not less than 1 and not more than 1.5, and K is proportional to the diameter of the inner circle of the water-cooling device of the mold.
9. A water cooling system for a casting mold comprises a water cooling channel, wherein the water cooling channel is arranged in the mold, and the inner surface of a mold cavity is a cooling surface; the water-cooling mold is characterized in that the water-cooling channel is arranged around the mold cavity, the distance from the water inlet to the cooling surface of the water-cooling channel is greater than the distance from the water outlet to the cooling surface of the water-cooling channel, and the distance from the water-cooling channel to the cooling surface is uniformly changed from top to bottom.
10. The water cooling system for casting molds according to claim 9, wherein said water cooling channel has an inlet at an upper portion and an outlet at a lower portion; the water-cooling channel is spirally arranged, more than two groups of water-cooling channels are arranged, and the water-cooling channels are uniformly distributed along the circumference of the die cavity.
11. The utility model provides a wheel casting mould water cooling system which characterized in that: the water cooling device comprises water cooling channels arranged in a top die, a side die and a bottom die, wherein the water cooling channel in the top die is arranged above a die cavity, the water cooling channel in the side die is arranged around the die cavity, the water cooling channel in the bottom die is arranged below the die cavity, and the inner surface of the die cavity is a cooling surface; the distance between the water-cooling channel and the cooling surface at the water inlet is greater than that between the water-cooling channel and the cooling surface at the water outlet, and the distance between the water-cooling channel and the cooling surface is uniformly changed from top to bottom.
12. The water cooling system for the wheel casting mold according to claim 11, wherein there are more than two groups of the water cooling channels in the top mold, the water cooling channels are uniformly distributed along the circumference of the top mold and are spirally arranged in the top mold, the water inlet of the water cooling channel in the top mold is arranged at the upper part, and the water outlet of the water cooling channel in the top mold is arranged at the lower part;
more than two groups of water cooling channels are arranged in the bottom die, are uniformly distributed along the circumference of the bottom die and are spirally arranged in the bottom die, a water inlet of the water cooling channel in the bottom die is arranged at the lower part, and a water outlet of the water cooling channel in the bottom die is arranged at the upper part;
in the side die, a water inlet of the water cooling channel is arranged at the upper part, and a water outlet is arranged at the lower part; and the water cooling channel in the side die is spirally arranged.
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| CN201911390671.2A CN110976815A (en) | 2019-12-30 | 2019-12-30 | Die water cooling device and system |
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| CN201911390671.2A CN110976815A (en) | 2019-12-30 | 2019-12-30 | Die water cooling device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844675A (en) * | 2020-08-03 | 2020-10-30 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (Polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
| CN112605365A (en) * | 2020-12-01 | 2021-04-06 | 东风汽车有限公司 | Motor casing low pressure casting cooling system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11207442A (en) * | 1998-01-21 | 1999-08-03 | Sumitomo Heavy Ind Ltd | Mold in continuous casting equipment and casting method using it |
| DE10138988A1 (en) * | 2000-08-23 | 2002-10-02 | Sms Demag Ag | Chilled continuous casting mold for casting metal |
| CN104353813A (en) * | 2014-09-12 | 2015-02-18 | 中信戴卡股份有限公司 | Aluminum wheel water cooling low-pressure casting die and technology |
| CN204209101U (en) * | 2014-09-15 | 2015-03-18 | 中信戴卡股份有限公司 | Low-pressure casting die of aluminum vehicle wheel |
| CN206869088U (en) * | 2017-05-03 | 2018-01-12 | 佛山市南海奔达模具有限公司 | Cooling water ring and its casting mould of application |
| CN207857802U (en) * | 2018-02-05 | 2018-09-14 | 辽阳宝鼎带钢有限公司 | A kind of thin band continuous casting crystallization roller |
| CN212042613U (en) * | 2019-12-30 | 2020-12-01 | 中信戴卡股份有限公司 | Mold water cooling device, annular water cooling disc and casting mold water cooling system |
-
2019
- 2019-12-30 CN CN201911390671.2A patent/CN110976815A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11207442A (en) * | 1998-01-21 | 1999-08-03 | Sumitomo Heavy Ind Ltd | Mold in continuous casting equipment and casting method using it |
| DE10138988A1 (en) * | 2000-08-23 | 2002-10-02 | Sms Demag Ag | Chilled continuous casting mold for casting metal |
| CN104353813A (en) * | 2014-09-12 | 2015-02-18 | 中信戴卡股份有限公司 | Aluminum wheel water cooling low-pressure casting die and technology |
| CN204209101U (en) * | 2014-09-15 | 2015-03-18 | 中信戴卡股份有限公司 | Low-pressure casting die of aluminum vehicle wheel |
| CN206869088U (en) * | 2017-05-03 | 2018-01-12 | 佛山市南海奔达模具有限公司 | Cooling water ring and its casting mould of application |
| CN207857802U (en) * | 2018-02-05 | 2018-09-14 | 辽阳宝鼎带钢有限公司 | A kind of thin band continuous casting crystallization roller |
| CN212042613U (en) * | 2019-12-30 | 2020-12-01 | 中信戴卡股份有限公司 | Mold water cooling device, annular water cooling disc and casting mold water cooling system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844675A (en) * | 2020-08-03 | 2020-10-30 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (Polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
| CN112605365A (en) * | 2020-12-01 | 2021-04-06 | 东风汽车有限公司 | Motor casing low pressure casting cooling system |
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