CN204504187U - A kind of bed die water spot device for cooling for wheel hub casting - Google Patents

A kind of bed die water spot device for cooling for wheel hub casting Download PDF

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Publication number
CN204504187U
CN204504187U CN201420843391.9U CN201420843391U CN204504187U CN 204504187 U CN204504187 U CN 204504187U CN 201420843391 U CN201420843391 U CN 201420843391U CN 204504187 U CN204504187 U CN 204504187U
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hole
water
backwater
diameter
cold
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朱霖
李昌海
李鸿标
周鹏
王永宁
朱志华
熊彬羽
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CITIC Dicastal Co Ltd
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CITIC Dicastal Co Ltd
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Abstract

The utility model provides a kind of bed die water spot device for cooling for wheel hub casting, uses this device to carry out the method for bed die cooling, and manufactures the method for this device.Described device comprise a little cold upper cover plate 1, put cold bottom plate 2, empty avoiding boss 3, half slot 4, backwater lateral road 5, backwater circuit 6, water return outlet 7, return pipe 8, first through hole 9, special-shaped through hole 10, second through hole 11, ladder hole 12, water inlet pipe 13, water pipe 14, water inlet manifold 15, sealing gasket 16, screw 17.The advantage of device and method of the present utility model is, multichannel point spoke cooling needed is cold to be integrated on a device; Eliminate the impact of backwater on mould, be conducive to steady production; Utilize backwater lateral road and backwater circuit that water outlet cold for multichannel point is focused on a water return outlet, simplify water recovery apparatus, also make the pipeline of equipment connect simpler; Whole device, without peculiar part, reduces processing cost, safeguards also convenient.

Description

A kind of bed die water spot device for cooling for wheel hub casting
Technical field
The utility model relates to casting field, relates to a kind of bed die water spot device for cooling for wheel hub casting particularly.
Background technology
In aluminum vehicle wheel low pressure casting field, water cooling mold becomes the developing direction of following mould development already, and water spot cold will be the emphasis of future thrust.Ever-changing in the face of car wheel structure, water spot is cold not only will be applied to limit mould cooling; More to be applied to bed die cooling.Especially for large-sized wheel-type, only depend on limit mould cooling, be difficult to the quality ensureing spoke.Therefore, developing and a kind ofly realize the cold device of bed die water spot, will be imperative; And the device developed must not be limited by product structure, must various product be applicable to, just can guarantee cold the applying in bed die cooling of water spot.
Utility model content
Therefore, the purpose of this utility model is to provide and a kind ofly realizes the cold device of bed die water spot, and the water spot that this device can realize bed die is cold, and is not limited to the structure of product.
The utility model provides following technical scheme to realize above-mentioned goal of the invention:
In one of the present utility model, provide a kind of bed die water spot device for cooling for wheel hub casting, it is characterized in that, described device comprises: the cold upper cover plate 1 of (1) annular point, and it comprises empty avoiding boss 3, is arranged in the first through hole 9 of empty avoiding boss 3 and the second through hole 11 in order to bolted; (2) the cold bottom plate 2 of annular point, its with annular point cold upper cover plate 1 assemble, and comprise backwater lateral road 5, with backwater lateral road 5 be in fluid communication backwater circuit 6, with backwater circuit 6 be in fluid communication water return outlet 7, with backwater lateral road 5 be in the special-shaped through hole 10 of fluid communication and the ladder hole 12 for bolted; (3) water pipe 14 of fluid communication is in special-shaped through hole 10; (4) return pipe 8 of fluid communication is in backwater circuit 6; (5) water inlet pipe 13, it is set in the straight line pylone part of special-shaped through hole, and it through the first through hole 9, and is in fluid communication with water pipe 14; And described special-shaped through hole 10 forms by semi-cylindrical throughhole portions with perpendicular to the straight line pylone part of described semicylindrical portions curved surface; The described cold upper cover plate of point 1 and the cold bottom plate 2 of point are by aliging the second through hole 11 and ladder hole 12, and assemble through the welding of sealing gasket 16 and screw 17 is fastening, the first through hole 9 is in fluid communication with backwater lateral road 5 in the assembled state; Preferably, special-shaped through hole 10 aligns with the first through hole 9.
According to the utility model preferred aspect, also comprise the half slot 4 installing water pipe 14 below the cold bottom plate 2 of described point, described water pipe 14 is arranged on half slot 4, utilizes and is weldingly fixed on a little on cold bottom plate 2; Preferably, the diameter of half slot 4 is equal with the external diameter of water pipe 14.
According to the utility model preferred aspect, the height of empty avoiding boss 3 is 1 to 2mm, and diameter is greater than the diameter of the first through hole 9; Preferably, the diameter of empty avoiding boss 3 is 20 ~ 24mm.
According to the utility model preferred aspect, the internal diameter of water pipe 14 is more than or equal to 4 times of warp in water inlet pipe 13, and the internal diameter of water inlet manifold 15 is less than or equal to the internal diameter of water pipe 14; Preferably, the internal diameter of water pipe 14 is 4 ~ 8 times of water inlet pipe 13 internal diameter, and the internal diameter of water inlet manifold 15 is 0.3 ~ 1 times of the internal diameter of water pipe 14.
According to the utility model preferred aspect, backwater lateral road 5 is greater than the diameter of the first through hole 9 with the width of backwater circuit 6, and the degree of depth is not less than 1/3rd of the first through hole 9 height; The internal diameter of return pipe 8 equals the diameter of water return outlet 7.
According to the utility model preferred aspect, the diameter of water return outlet 7 equals the width of backwater circuit 6.
According to another aspect of the present utility model, provide a kind of wheel hub casting bed die cooling means, described method comprises step: (1) is according to the position of water inlet pipe 13 and the first through hole 9 on the cold upper cover plate 1 of previously described device mid point, and the position of screw 17, get out blind hole in the relevant position of wheel hub casting bed die; (2) annular is first put cold upper cover plate 1 by welding by previously described device to became one with the cold bottom plate 2 of annular point, be then fixed on described wheel hub casting bed die by screw 17; And (3) to pass into pressure in water inlet manifold 15 be 4 ~ 6atm, water temperature is the water of 25 ~ 30 DEG C.
According to another aspect of the present utility model, provide a kind of method manufacturing previously described device, it is characterized in that, described method comprises step: (1) is put on cold upper cover plate 1 in annular and processed empty avoiding boss 3, is arranged in the first through hole 9 of empty avoiding boss 3 and the second through hole 11 in order to bolted; (2) put in annular and cold bottom plate 2 processes backwater lateral road 5, the backwater circuit 6, the water return outlet 7 being in fluid communication with backwater circuit 6 that are in fluid communication with backwater lateral road 5, be in the special-shaped through hole 10 of fluid communication and the ladder hole 12 for bolted with backwater lateral road 5; (3) annular is put cold upper cover plate 1 to be alignd by the second through hole 11 and ladder hole 12 with the cold bottom plate 2 of annular point, and it is fastening to use sealing gasket 16 and screw 17 to carry out welding; (4) utilize welding water pipe 14, water inlet manifold 15, water inlet pipe 13 to be connected as a single entity, and make water inlet pipe 13 be installed on half slot 4 by special-shaped through hole 10, use is welded and fixed; (5) return pipe 8 is installed on water return outlet 7.
In other, following technical scheme is additionally provided of the present utility model:
The technical solution of the utility model is: bed die water spot device for cooling, comprise a little cold upper cover plate 1, put cold bottom plate 2, water inlet water circuit system, backwater water circuit system, fastening and sealing system.
The cold upper cover plate 1 of point has, empty avoiding boss 3, first through hole 9 of quantity and second through holes 11 in order to bolted such as the cold position of corresponding bed die point.The height of empty avoiding boss 3 is designed to 1 to 2mm, and diameter is more than or equal to the diameter of the first through hole 9.
The cold bottom plate 2 of point has, in order to install the half slot 4 of water pipe 14, backwater lateral road 5, backwater circuit 6, water return outlet 7, special-shaped through hole 10 and the ladder hole 12 in order to bolted.
The diametric requirements of half slot 4 is equal with the external diameter of water pipe 14.
Water inlet water circuit system is made up of water inlet pipe 13, water pipe 14, water inlet manifold 15.The internal diameter of water pipe 14 requires 4 times that are more than or equal to warp in water inlet pipe 13, and the internal diameter of water inlet manifold 15 is less than or equal to the internal diameter of water pipe 14.
Backwater water circuit system is made up of backwater lateral road 5, backwater circuit 6, water return outlet 7, return pipe 8.Backwater lateral road 5 is greater than the diameter of the first through hole 9 with the width requirement of backwater circuit 6, and the degree of depth is not less than 1/3rd of the first through hole 9 height; The internal diameter of return pipe 8 equals the diameter of water return outlet 7.
Fastening with sealing system primarily of sealing gasket 16, screw 17 and be welded to form.
The straight part diameter of special-shaped through hole 10 is slightly larger than the external diameter of water inlet pipe 13.The diameter of water return outlet 7 equals the width of backwater circuit 6.
Water inlet water circuit system is arranged on half slot 4, utilizes and is weldingly fixed on a little on cold bottom plate 2.
In other, additionally provide the preparation method preparing previously described bed die water spot device for cooling of the present utility model, comprise a little cold upper cover plate 1, put cold bottom plate 2, water inlet water circuit system, backwater water circuit system, fastening and sealing system.
According to drawing requirement, process the cold upper cover plate 1 of qualified point and the cold bottom plate 2 of point.Welding is utilized cold for some upper cover plate 1 and the cold bottom plate 2 of point to be welding as one.According to the arrangement requirement of cooling line, make water inlet water circuit system, utilize welding water inlet pipe 13, water pipe 14, water inlet manifold 15 to be connected as one.Return pipe 8 is welded on the position of the water return outlet 7 of a little cold bottom plate 2.Bed die water spot device for cooling is installed on bed die.This bed die water spot device for cooling achieves highly integrated, is not only integrated on device by cold for multichannel point, also backwater cold for each waypoint is integrated into a water return outlet, eliminates the restriction of product structure to the cold enforcement of point up hill and dale; And this device is installed simple, easy to maintenance, is conducive to promotion and implementation.
In other, following technical scheme is additionally provided of the present utility model:
Paragraph 1. bed die water spot device for cooling, comprises bed die water spot device for cooling, comprise a little cold upper cover plate 1, put cold bottom plate 2, water inlet water circuit system, backwater water circuit system.It is characterized in that: water inlet water circuit system is made up of water inlet pipe 13, water pipe 14, water inlet manifold 15; Backwater water circuit system is made up of backwater lateral road 5, backwater circuit 6, water return outlet 7, return pipe 8.
Paragraph 2., according to the bed die water spot device for cooling described in paragraph 1, is characterized in that: put on cold upper cover plate 1 and be designed with empty avoiding boss 3, and the Altitude control of boss is at 1 to 2mm, and diameter is more than or equal to the diameter of the first through hole 9.
Paragraph 3., according to the bed die water spot device for cooling described in paragraph 1, is characterized in that: put on cold bottom plate 2 and be designed with half slot 4, backwater lateral road 5, backwater circuit 6 and water return outlet 7; The diametric requirements of half slot 4 equals the external diameter of water pipe 14.
Paragraph 4. is according to the bed die water spot device for cooling described in paragraph 1, it is characterized in that: water inlet water circuit system is made up of water inlet pipe 13, water pipe 14, water inlet manifold 15, the internal diameter of water pipe 14 requires 4 times that are more than or equal to warp in water inlet pipe 13, and the internal diameter of water inlet manifold 15 is less than or equal to the internal diameter of water pipe 14.
Paragraph 5. is according to the bed die water spot device for cooling described in paragraph 1, it is characterized in that: backwater water circuit system is made up of backwater lateral road 5, backwater circuit 6, water return outlet 7, return pipe 8, backwater lateral road 5 is greater than the diameter of the first through hole 9 with the width requirement of backwater circuit 6, and the degree of depth is not less than 1/3rd of the first through hole 9 height; The internal diameter of return pipe 8 equals the diameter of water return outlet 7.
Bed die water spot device for cooling of the present utility model, is not limited to the content described in the utility model content and detailed description of the invention, inspires and other designs of acquisition, all fall into protection domain of the present utility model according to the utility model content.
The utility model concrete in, provide following concrete working process parameter:
The material of the cold upper cover plate of annular point: spheroidal graphite cast-iron;
Annular point cold upper cover plate 1 thickness: 15 ~ 25mm;
The diameter of empty avoiding boss 3: 20 ~ 24mm;
The height of empty avoiding boss 3: 1 ~ 2mm;
The diameter of the first through hole 9: 12 ~ 20mm;
The diameter of the second through hole 11: 13 ~ 14mm;
The material of the cold bottom plate 2 of annular point: spheroidal graphite cast-iron;
Annular point cold bottom plate 2 thickness: 25 ~ 45mm;
Backwater lateral road 5 degree of depth: 5 ~ 10mm;
Backwater lateral road 5 width: 16 ~ 24mm;
Backwater circuit 6 degree of depth: 5 ~ 15mm;
Backwater circuit 6 width: 16 ~ 20mm;
Water return outlet 7 diameter: 8 ~ 14mm;
Special-shaped through hole 10 shape: upper inverse Ba type hole connects straight hole and connects lower Eight characters nibs again;
Ladder hole 12 machined parameters: diameter macropores 20mm, hole diameter 13 ~ 14mm;
The parameter of water pipe 14: internal diameter 14 ~ 20mm, external diameter 16 ~ 22mm;
The diameter of return pipe 8: internal diameter 8 ~ 14mm, external diameter 10 ~ 16mm;
The internal diameter of water inlet pipe 13: 2 ~ 4mm;
The external diameter of water inlet pipe 13: 4 ~ 8mm.
As other selection, the utility model additionally provides following technological parameter:
The material of the cold upper cover plate of annular point: vermicular cast iron;
Annular point cold upper cover plate 1 thickness: 15 ~ 25mm;
The diameter of empty avoiding boss 3: 20 ~ 24mm;
The height of empty avoiding boss 3: 1 ~ 2mm;
The diameter of the first through hole 9: 12 ~ 20mm;
The diameter of the second through hole 11: 13 ~ 14mm;
The material of the cold bottom plate 2 of annular point: vermicular cast iron;
Annular point cold bottom plate 2 thickness: 25 ~ 45mm;
Backwater lateral road 5 degree of depth: 5 ~ 10mm;
Backwater lateral road 5 width: 16 ~ 24mm;
Backwater circuit 6 degree of depth: 5 ~ 15mm;
Backwater circuit 6 width: 16 ~ 20mm;
Water return outlet 7 diameter: 8 ~ 14mm;
Special-shaped through hole 10 shape: upper inverse Ba type hole connects straight hole and connects lower Eight characters nibs again;
Ladder hole 12 machined parameters: diameter macropores 20mm, hole diameter 13 ~ 14mm;
The parameter of water pipe 14: internal diameter 14 ~ 20mm, external diameter 16 ~ 22mm;
The diameter of return pipe 8: internal diameter 8 ~ 14mm, external diameter 10 ~ 16mm;
The internal diameter of water inlet pipe 13: 2 ~ 4mm;
The external diameter of water inlet pipe 13: 4 ~ 8mm.
The utility model brings following Advantageous Effects:
(1) multichannel point spoke cooling needed is cold to be integrated on a device, is conducive to implementing, promoting; (2) backwater water circuit system is designed on the cold bottom plate of point, eliminate the impact of backwater on mould, be conducive to steady production; (3) utilize backwater lateral road and backwater circuit that water outlet cold for multichannel point is focused on a water return outlet, simplify water recovery apparatus, also make the pipeline of equipment connect simpler; And (4) whole device, without peculiar part, reduces processing cost, safeguard also convenient.
In the utility model is preferred, the diameter of the first through hole 9 is greater than with the width of backwater circuit 6 by selecting backwater lateral road 5, the degree of depth is not less than 1/3rd of the first through hole 9 height, unexpectedly achieves and prevents water outlet to rebound the cold hole of point again entered in mould.
In the utility model is preferred, 4 times of warp in water inlet pipe 13 are more than or equal to by the internal diameter of water pipe 14, the internal diameter of water inlet manifold 15 is less than or equal to the internal diameter of water pipe 14, ensure that the flow of each water inlet pipe is consistent as far as possible, ensure that the trouble-free operation of device.
In the utility model is preferred, by the width selecting the diameter of water return outlet 7 to equal backwater circuit 6, reduce backwater back-pressure, ensure that backwater is smooth and easy.
Accompanying drawing explanation
Below, describe embodiment of the present utility model in detail by reference to the accompanying drawings, wherein:
Fig. 1: the longitudinal section of the device described in embodiment 1, a 1-cold upper cover plate, a 2-cold bottom plate, 3-empty avoiding boss, 4-half slot, 5-backwater lateral road, 6-backwater circuit, 7-water return outlet, 8-return pipe, the 9-the first through hole, 10-special-shaped through hole, 11-the second through hole, 12-ladder hole, 13-water inlet pipe, 14-water pipe, 15-water inlet manifold, 16-sealing gasket, 17-screw;
Fig. 2: the stereogram of the device described in embodiment 1;
Fig. 3: the stereogram of the device described in embodiment 1; And
Fig. 4: the three-dimensional cutaway view of the device described in embodiment 1.
Detailed description of the invention
The manufacture of embodiment 1 bed die water spot device for cooling
According to following technological parameter processing bed die water spot device for cooling:
Table 1: the technological parameter of processing bed die water spot device for cooling
Continued 1: the technological parameter of processing bed die water spot device for cooling
Continued 1: the technological parameter of processing bed die water spot device for cooling
Processing method is as follows:
(1) put on cold upper cover plate 1 in annular and process empty avoiding boss 3, be arranged in the first through hole 9 of empty avoiding boss 3 and the second through hole 11 in order to bolted; (2) put in annular and cold bottom plate 2 processes backwater lateral road 5, the backwater circuit 6, the water return outlet 7 being in fluid communication with backwater circuit 6 that are in fluid communication with backwater lateral road 5, be in the special-shaped through hole 10 of fluid communication and the ladder hole 12 for bolted with backwater lateral road 5; (3) annular is put cold upper cover plate 1 to be alignd by the second through hole 11 and ladder hole 12 with the cold bottom plate 2 of annular point, and it is fastening to use sealing gasket 16 and screw 17 to carry out welding; (4) water pipe 14 is installed on special-shaped through hole 10; (5) return pipe 8 is installed on backwater circuit 6; (6) water inlet pipe is passed the first through hole 9, be set in the straight line portion of special-shaped through hole.
Embodiment 2: the cooling effect test of the bed die water spot device for cooling described in embodiment 1
First, be installed to by the water mould point device for cooling group 1-4 described in embodiment 1 on bed die that aluminium alloy wheel hub (19X8J, 12 spokes) casts, its method is as follows:
(1) according to the position of water inlet pipe 13 and the first through hole 9 on the cold upper cover plate 1 of previously described device mid point, and the position of screw 17, get out blind hole in the relevant position of wheel hub casting bed die;
(2) previously described device is fixed on described wheel hub casting bed die by screw.
Arrange thermocouple at the spoke root of bed die and position, flange outer ring, and in water inlet manifold 15, pass into pressure be 4 ~ 6atm, water temperature is the water of 25 ~ 30 DEG C, and measures the variations in temperature of bed die setting position.
Particularly, each group test takes the condition shown in table 2 to carry out:
Table 2: the some device for cooling cooling test parameter of embodiment 1
Group number Point device for cooling Hydraulic pressure/atm Water temperature/DEG C
1 1st group of some device for cooling 4 25
2 1st group of some device for cooling 6 30
3 2nd group of some device for cooling 4 30
4 2nd group of some device for cooling 6 25
5 3rd group of some device for cooling 4 25
6 3rd group of some device for cooling 6 30
7 4th group of some device for cooling 4 30
8 4th group of some device for cooling 6 25
Find, in above each group test, spoke root temperature is about 400 DEG C, and flange outer ring temperature is about 500 DEG C; Illustrate that the thermograde in spoke interval obtains effectively to improve, and flange outer ring does not occur that temperature is too high, can ensure product appearance better.
Embodiment 3: the pilot plant test of the bed die water spot device for cooling described in embodiment 1
The casting aluminium alloy wheel hub bed die specification used is as follows:
3-1 test group, the wheel hub casting bed die specification used is: 19X8J, 12 spokes, according to the method for embodiment 2, group water mould point device for cooling of the 1st described in embodiment 1 is installed on the bed die (1) of casting aluminium alloy wheel hub, and passing into pressure in water inlet manifold 15 is 4atm, and water temperature is the water of 25 DEG C.
3-2 control group, the wheel hub casting bed die specification of use is: 19X8J, 12 spokes, do not install the bed die water spot device for cooling described in embodiment 1.
Under stable process conditions, the 2 day time of continuous seepage.
(1) number mould: producing wheel hub quantity is 620, and wherein pin hole rate is 0.2%;
(2) number mould: producing wheel hub quantity is 480, and wherein pin hole rate is 1.1%.
As can be seen here, when using bed die water spot device for cooling described in the utility model, pin hole rate have dropped 0.9%.Simultaneously owing to using water spot cooling method to cool bed die, shorten and produce off time, make production efficiency improve 29.17%.
Be the low pressure casting production line of 3,000,000 wheel hubs with a scale for annual production, being often only the economic benefit that pin hole rate declines, yields rises, production efficiency rises, economize energy brings is nearly ten million yuan.
This installation method is used for the scale up test of our company inside by current CITIC Dicastal Co., Ltd., obtains good application prospect.If these apparatus and method to be applied to the wheel hub production platform that card annual production 30000000 worn by middle letter, huge economic and social benefit will be brought.

Claims (10)

1., for a bed die water spot device for cooling for wheel hub casting, it is characterized in that, described device comprises:
(1) the annular cold upper cover plate of point (1), it comprises empty avoiding boss (3), is arranged in first through hole (9) of empty avoiding boss (3) and the second through hole (11) in order to bolted;
(2) the annular cold bottom plate of point (2), its with annular point cold upper cover plate (1) assemble, and comprise backwater lateral road (5), with backwater lateral road (5) be in fluid communication backwater circuit (6), with backwater circuit (6) be in fluid communication water return outlet (7), and backwater lateral road (5) be in the special-shaped through hole (10) of fluid communication and the ladder hole (12) for bolted;
(3) water pipe (14) of fluid communication is in special-shaped through hole (10);
(4) return pipe (8) of fluid communication is in backwater circuit (6);
(5) water inlet pipe (13), it is set in the straight line pylone part of special-shaped through hole, and it through the first through hole (9), and is in fluid communication with water pipe (14); And
Described special-shaped through hole (10) forms by semi-cylindrical throughhole portions with perpendicular to the straight line pylone part of described semicylindrical portions curved surface; The described cold upper cover plate of point (1) and the cold bottom plate of point (2) are by aliging the second through hole (11) and ladder hole (12), assemble through the welding of sealing gasket (16) and screw (17) is fastening, the first through hole (9) and backwater lateral road (5) are in fluid communication in the assembled state.
2. device according to claim 1, is characterized in that, special-shaped through hole (10) aligns with the first through hole (9).
3. the device described in claim 1 or 2, it is characterized in that, the described cold bottom plate of point (2) below also comprises the half slot (4) installing water pipe (14), described water pipe (14) is arranged on half slot (4), utilizes and is weldingly fixed on a little on cold bottom plate (2).
4. device according to claim 3, is characterized in that, the diameter of half slot (4) is equal with the external diameter of water pipe (14).
5. the device described in claim 1 or 2, is characterized in that, the height of empty avoiding boss (3) is 1 to 2mm, and diameter is greater than the diameter of the first through hole (9).
6. device according to claim 5, is characterized in that, the diameter of empty avoiding boss (3) is 20 ~ 24mm.
7. the device described in claim 1 or 2, it is characterized in that, the internal diameter of water pipe (14) is more than or equal to 4 times of water inlet pipe (13) internal diameter, and the internal diameter of water inlet manifold (15) is less than or equal to the internal diameter of water pipe (14).
8. device according to claim 7, is characterized in that, the internal diameter of water pipe (14) is 4 ~ 8 times of water inlet pipe (13) internal diameter, and the internal diameter of water inlet manifold (15) is 0.3 ~ 1 times of the internal diameter of water pipe (14).
9. the device described in claim 1 or 2, it is characterized in that, backwater lateral road (5) is greater than the diameter of the first through hole (9) with the width of backwater circuit (6), and the degree of depth is not less than 1/3rd of the first through hole (9) height; The internal diameter of return pipe (8) equals the diameter of water return outlet (7).
10. the device described in claim 1 or 2, is characterized in that, the diameter of water return outlet (7) equals the width of backwater circuit (6).
CN201420843391.9U 2014-12-25 2014-12-25 A kind of bed die water spot device for cooling for wheel hub casting Active CN204504187U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439164A (en) * 2014-12-25 2015-03-25 中信戴卡股份有限公司 Bottom die water spot cooling device used for hub casting and method for cooling bottom die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439164A (en) * 2014-12-25 2015-03-25 中信戴卡股份有限公司 Bottom die water spot cooling device used for hub casting and method for cooling bottom die
CN104439164B (en) * 2014-12-25 2017-01-18 中信戴卡股份有限公司 Bottom die water spot cooling device used for hub casting and method for cooling bottom die

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