CN104353813A - Aluminum wheel water cooling low-pressure casting die and technology - Google Patents
Aluminum wheel water cooling low-pressure casting die and technology Download PDFInfo
- Publication number
- CN104353813A CN104353813A CN201410463058.XA CN201410463058A CN104353813A CN 104353813 A CN104353813 A CN 104353813A CN 201410463058 A CN201410463058 A CN 201410463058A CN 104353813 A CN104353813 A CN 104353813A
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- water
- cooling
- mould
- cooling channel
- pressure casting
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Classifications
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses an aluminum wheel low-pressure casting water cooling die. A center die insert 8 is provided with a water cooling channel 9 for cooling the wheel center; a water cooling channel 7 for cooling the inner rim is arranged at the upper part of a head die 5; a lower edge die 2 is provided with a water cooling passage 3 for cooling a wheel hot spot. The casting technology mainly includes a slow-to-quick mold filling technology and a water-to-air cooling technology. According to the invention, the performance quality of the aluminum alloy wheel casting is improved, and the performance quality of the casting is greatly improved in stability and consistency due to the adoption of the slow-to-quick mold filling technology and the water-to-air cooling technology; the high water cooling intensity increases the freezing rate of the casting, thereby increasing the casting production efficiency; cooling water flows in the water cooling channels relatively sealed, so that noise pollution caused by compressed air in the air cooling technology is eliminated, and the casting working condition is improved.
Description
Technical field
The present invention relates to aluminium alloy casting field, is specifically a kind of low pressure casting die and technique.
Background technology
At present, domestic and international aluminum-alloy wheel low-pressure casting method has air-cooled process for cooling and cooling by water technique.Due to reasons such as technology succession and technical maturity degree, the air-cooled cooling process method of domestic most employing low pressure casting.The air-cooled cooling process method of low pressure casting of traditional aluminum vehicle wheel blank is: cooling air holes is bored in die back chamber, compressed air goes out to blow in mold cools down air holes by stainless steel cooling duct, by heat convection mode between the two to the cooling of mould relevant position, reach the object of aluminum vehicle wheel consecutive solidification with this.But this method uses compressed air air-cooled cooling effectiveness low, and casting solidification speed is slow, and wheel material performance quality is generally on the low side, and compressed air blows in mould air holes and causes higher noise and energy consumption waste.
Summary of the invention
The technical problem to be solved in the present invention is, casting production efficiency is on the low side, and casting material performance quality is not high, the noise pollution of casting operating mode.
Technical scheme of the present invention is, aluminum vehicle wheel water-cooled low pressure casting die, comprise bed die, below mould, top mould, backform, center loose piece, note formula sprue bush, screen pack, spreader, venting plug, described bed die is arranged note formula sprue bush and the water-cooling channel for cooling spoke, center loose piece, spreader are arranged on backform, and center loose piece arranges the water-cooling channel for cooling core wheel.
backformouter, top arranges venting plug and the water-cooling channel for cooling inner rim, and limit mould is divided into top mould and following mould, and following mould arranges the water-cooling channel being used for cooling wheels thermal center.
As improvement, following mould and top mould are combined type four folding limit moulds, and top mould selects cast steel 35CrMo material, and following mould selects forged steel 35CrMo material, are conducive to the welded seal after processing arc water channel, and prevention welding stress cracking, affects die life.
As improvement, for the water-cooling channel both sides design intake-outlet at cooling wheels thermal center place, the water-cooling channel intake-outlet of four limit moulds is a left side and enters the right side and to go out or the interlaced arrangement that a left side goes out is entered on the right side, at utmost weaken the differential magnitude of intake-outlet place mold temperature, make casting solidification process fast and uniformity.
As improvement, backform and center loose piece all select forged steel H13 material, and both bolts connect, empty avoiding in the middle of contact surface.
As improvement, for cooling the water-cooling channel intake-outlet of core wheel for singly to enter singly to go out.For cooling the water-cooling channel intake-outlet of inner rim for going with each other all the time.For the water-cooling channel intake-outlet at cooling wheels thermal center place for singly to enter singly to go out.
As improvement, the water-cooling channel cross section for cooling wheels thermal center is arranged as rectangle, fillet abate 1mm, and area of section is not less than 80mm2, can be 100mm2.Be conducive to reducing mould ditch in Long-Time Service process to pile up, avoid affecting technology stability.
As improvement, for cooling the water-cooling channel of inner rim for cooling wheels inner rim, when section garden radius particularly arranged for water-cooling channel is greater than 200mm, its intake-outlet is for going with each other all the time, interlaced arrangement, centre is provided with interruption and separates, and is beneficial to and ensures that water-cooling channel is to mold temperature uniformity.
Described cooling water is deionized water, and cooling water temperature is 15 DEG C-35 DEG C, and hydraulic pressure is 0.3MPa-0.6MPa.
Compared with prior art, the present invention has the following advantages: change the air-cooled type of cooling that existing low pressure casting die intensity of cooling is weak, following under consecutive solidification prerequisite, from outside to inside from top to bottom, in foundry goods far-end (inner rim), thermal center, thick large part (core wheel) position, water-cooling channel is set, thus accelerate casting solidification speed, improve casting material mechanical property, be beneficial to the lifting realizing casting efficiency.In addition, cooling water all flows in the water-cooling channel of closed loop, the noise that casting operating mode does not have compressed air to blow out, and work operating mode is greatly improved.
Invention additionally provides a kind of aluminum vehicle wheel water cooling mold low-pressure casting process, and this technique is based on above-mentioned low pressure casting die, and by the adjustment of described water-cooling channel and relevant process for cooling parameter, accelerate casting solidification speed, this technique comprises the following steps.
(1) by being arranged on the sprue bush at bed die center toward cast aluminum liquid in die cavity, and steadily expanded to surrounding in die cavity by center spreader shunting aluminium liquid, along with aluminium liquid constantly rises in mold cavity in cavity filling process, the venting plug of the gas in die cavity through being positioned at backform discharges mould.
(2), in aluminum liquid filling type process, speed when aluminium liquid flows through wheel rim is less than speed when flowing through spoke, namely filling velocity first slow after fast, meet and fill the feeding power that type end has enough temperature of aluminum liquid.
(3) fill type to complete, by trumpet assembly, pressurize in place.Open backform water-cooled, limit mould water-cooled, center loose piece water-cooled and bed die water-cooled successively, under consecutive solidification prerequisite, accelerate casting solidification.
(4) close successively after water-cooled, need in water-cooling channel, pass into compressed air in short-term again, be convenient to remove cooling water residual in passage, be i.e. the water-cooling process method of wind after first water.
Compared with prior art, the present invention has the following advantages: adopt the inventive method, break through the Traditional Thinking that single aluminium liquid fills at a slow speed type, need for the feature that wheel rim thickness is thin and water cooling mold temperature is low, suitable raising wheel rim filling velocity, make up feeding in casting solidification process to be short of power, formed first slow after fast fill type technique; Moreover, the water-cooling process method of wind after the first water of the invention, after completing water-cooled pressure cooling, compressed air is passed in short-term in water-cooling channel, remove cooling water residual in passage, be beneficial to next casting cycle period to start front mold temperature stabilization and rise again, sufficient to reaching feeding power, casting quality uniformity is stablized.Finally, all water-cooling channel of the present invention all have employed closed loop configuration, and namely cooling water flows in relatively airtight water-cooling channel, compared with the casting technique of air-cooled mould, eliminates the noise pollution that compressed air blowout produces, thus improves casting working condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of low pressure casting water cooling mould for aluminum wheels of the present invention.
Fig. 2 is the following mould water-cooling channel structural representation of aluminum vehicle wheel water-cooled low pressure casting die of the present invention.
Fig. 3 is the center loose piece water-cooling channel structural representation of aluminum vehicle wheel water-cooled low pressure casting die of the present invention.
Fig. 4 is the bed die water-cooling channel structural representation of aluminum vehicle wheel water-cooled low pressure casting die of the present invention.
Fig. 5 is the backform water-cooling channel structural representation of aluminum vehicle wheel water-cooled low pressure casting die of the present invention.
In figure: the following mould of 1-bed die, 2-, 3-water-cooling channel, 4-top mould, 5-backform, 6-venting plug, 7-water-cooling channel, 8-center loose piece, 9-water-cooling channel, 10-spreader, 11-screen pack, 12-note formula sprue bush, 13-water-cooling channel.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Technical scheme of the present invention is, low pressure casting water cooling mould for aluminum wheels, comprise bed die 1, below mould 2, top mould 4, backform 5, center loose piece 8, note formula sprue bush 12, screen pack 11, spreader 10, venting plug 6, described bed die 1 is arranged note formula sprue bush 12 and the water-cooling channel 13 for cooling spoke, center loose piece 8, spreader 10 are arranged on backform 5, center loose piece 8 arranges the water-cooling channel 9 for cooling core wheel, described
backform 5outer, top arranges venting plug 6 and the water-cooling channel 7 for cooling inner rim, and described limit mould is divided into top mould 4 and following mould 2, and described following mould 2 arranges the water-cooling channel 3 being used for cooling wheels thermal center.
As improvement, following mould 2 and top mould 4 are combined type four folding limit moulds, and top mould 4 selects cast steel 35CrMo material, following mould 2 selects forged steel 35CrMo material, be conducive to the welded seal after processing arc water channel, prevention welding stress cracking, affects die life.
As improvement, for the water-cooling channel 3 both sides design intake-outlet at cooling wheels thermal center place, the water-cooling channel intake-outlet of four limit moulds is a left side and enters the right side and to go out or the interlaced arrangement that a left side goes out is entered on the right side, at utmost weaken the differential magnitude of intake-outlet place mold temperature, make casting solidification process fast and uniformity.
As improvement, described backform 5 and center loose piece 8 all select forged steel H13 material, and both bolts connect, empty avoiding in the middle of contact surface.
Water-cooling channel 9 intake-outlet is for singly to enter singly to go out.Water-cooling channel 7 intake-outlet is for going with each other all the time.Water-cooling channel 3 intake-outlet is for singly to enter singly to go out.
As improvement, water-cooling channel 3 cross section is arranged as rectangle, fillet abate 1mm, and area of section is not less than 80mm2, can be 100mm2.Be conducive to reducing mould ditch in Long-Time Service process to pile up, avoid affecting technology stability.
As improvement, water-cooling channel 7 for cooling wheels inner rim, particularly for water-cooling channel arrange joint garden radius be greater than 200mm time, its intake-outlet is for going with each other all the time, interlaced arrangement, centre is provided with interruption and separates, and is beneficial to and ensures that water-cooling channel is to mold temperature uniformity.
Described cooling water is deionized water, and cooling water temperature is 15 DEG C-35 DEG C, and hydraulic pressure is 0.3MPa-0.6MPa.
Compared with prior art, the present invention has the following advantages: change the air-cooled type of cooling that existing low pressure casting die intensity of cooling is weak, following under consecutive solidification prerequisite, from outside to inside from top to bottom, in foundry goods far-end (inner rim), thermal center, thick large part (core wheel) position, water-cooling channel is set, thus accelerate casting solidification speed, improve casting material mechanical property, be beneficial to the lifting realizing casting efficiency.In addition, cooling water all flows in the water-cooling channel of closed loop, the noise that casting operating mode does not have compressed air to blow out, and work operating mode is greatly improved.
Invention additionally provides a kind of aluminum vehicle wheel water cooling mold low-pressure casting process, and this technique is based on above-mentioned low pressure casting die, and by the adjustment of described water-cooling channel and relevant process for cooling parameter, accelerate casting solidification speed, this technique comprises the following steps.
(1) by being arranged on the sprue bush at bed die center toward cast aluminum liquid in die cavity, and steadily expanded to surrounding in die cavity by center spreader shunting aluminium liquid, along with aluminium liquid constantly rises in mold cavity in cavity filling process, the venting plug of the gas in die cavity through being positioned at backform discharges mould.
(2), in aluminum liquid filling type process, speed when aluminium liquid flows through wheel rim is less than speed when flowing through spoke, namely filling velocity first slow after fast, meet and fill the feeding power that type end has enough temperature of aluminum liquid.
(3) fill type to complete, by trumpet assembly, pressurize in place.Open backform water-cooled, limit mould water-cooled, center loose piece water-cooled and bed die water-cooled successively, under consecutive solidification prerequisite, accelerate casting solidification.
(4) close successively after water-cooled, need in water-cooling channel, pass into compressed air in short-term again, be convenient to remove cooling water residual in passage, be i.e. the water-cooling process method of wind after first water.
Below only just preferred embodiment of the present invention is described, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete steps allow to change, as: backform water-cooling channel can not have, or water-cooling process parameter is not opened, and completes consecutive solidification under the foundry goods own temperature gradient conditions only allowing wheel rim to be formed at cavity filling process; Described center loose piece water-cooling channel and bed die water-cooling channel can also have multiple intake-outlet, can determine, also can realize function of the present invention according to wheel moulding or size; Described center loose piece can form one with backform, only allows water-cooling channel to cool core wheel in the mode of heat dam.In a word, all various changes done in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (12)
1. low pressure casting water cooling mould for aluminum wheels, comprise bed die (1), below mould (2), top mould (4), backform (5), center loose piece (8), note formula sprue bush (12), screen pack (11), spreader (10), venting plug (6), water-cooling channel (13), it is characterized in that: backform (5) top arranges the water-cooling channel (7) for cooling inner rim, center loose piece (8) arranges the water-cooling channel (9) for cooling core wheel, and following mould (2) arranges the water-cooling channel (3) being used for cooling wheels thermal center place.
2. low pressure casting water cooling mould for aluminum wheels according to claim 1, is characterized in that: mould (2) and top mould (4) are combined type four folding limit moulds below.
3., according to the arbitrary described low pressure casting water cooling mould for aluminum wheels of claim 1,2, it is characterized in that: top mould (4) selects cast steel 35CrMo material.
4. low pressure casting water cooling mould for aluminum wheels according to claim 3, is characterized in that: mould (2) selects forged steel 35CrMo material below.
5. according to claim 1,2 arbitrary described low pressure casting water cooling mould for aluminum wheels, it is characterized in that: water-cooling channel (3) both sides design intake-outlet, the water-cooling channel intake-outlet of four limit moulds is a left side and enters the right side and to go out or the interlaced arrangement that a left side goes out is entered on the right side.
6. low pressure casting water cooling mould for aluminum wheels according to claim 5, is characterized in that: water-cooling channel (3) cross section is arranged as rectangle, and fillet abate 1mm, area of section is not less than 80mm2.
7. low pressure casting water cooling mould for aluminum wheels according to claim 6, is characterized in that: water-cooling channel (3) area of section 100mm2.
8. low pressure casting water cooling mould for aluminum wheels according to claim 1, is characterized in that: backform (5) and center loose piece (8) all select forged steel H13 material, and both bolts connect, empty avoiding in the middle of contact surface.
9. low pressure casting water cooling mould for aluminum wheels according to claim 1, is characterized in that: water-cooling channel (9) intake-outlet is for singly to enter singly to go out.
10. low pressure casting water cooling mould for aluminum wheels according to claim 1, is characterized in that: water-cooling channel (7) intake-outlet is for going with each other all the time.
11. low pressure casting water cooling mould for aluminum wheels according to claim 1, is characterized in that: water-cooling channel (13) intake-outlet is for singly to enter singly to go out.
12. 1 kinds of aluminum vehicle wheel water-cooled low-pressure casting process, by being arranged on the sprue bush at bed die center toward cast aluminum liquid in die cavity, and steadily expanded to surrounding in die cavity by center spreader shunting aluminium liquid, along with aluminium liquid constantly rises in mold cavity in cavity filling process, the venting plug of gas in die cavity through being positioned at backform discharges mould, and fill type and complete, by trumpet assembly, pressurize in place, it is characterized in that: in aluminum liquid filling type process, filling velocity is first slow rear fast; Fill type to complete, open backform water-cooled, limit mould water-cooled, center loose piece water-cooled and bed die water-cooled successively; After closing water-cooled successively, then pass into compressed air in short-term in water-cooling channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410463058.XA CN104353813A (en) | 2014-09-12 | 2014-09-12 | Aluminum wheel water cooling low-pressure casting die and technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410463058.XA CN104353813A (en) | 2014-09-12 | 2014-09-12 | Aluminum wheel water cooling low-pressure casting die and technology |
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| CN104353813A true CN104353813A (en) | 2015-02-18 |
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| CN201410463058.XA Pending CN104353813A (en) | 2014-09-12 | 2014-09-12 | Aluminum wheel water cooling low-pressure casting die and technology |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001500A (en) * | 2016-07-03 | 2016-10-12 | 中信戴卡股份有限公司 | Central heat-insulating hole structure of vehicle wheel water-cooling mold |
| CN106001506A (en) * | 2016-07-08 | 2016-10-12 | 中信戴卡股份有限公司 | Improved low-pressure casting top die |
| CN106041023A (en) * | 2016-07-08 | 2016-10-26 | 中信戴卡股份有限公司 | Improved low-pressure casting water-cooling side mould |
| CN106735067A (en) * | 2016-12-29 | 2017-05-31 | 宁波环亚机械制造有限公司 | Automobile filter die casting for shell mould |
| CN106825502A (en) * | 2017-03-03 | 2017-06-13 | 佛山市南海奔达模具有限公司 | A kind of sub-sectional cooling process structure hub mold |
| CN107008865A (en) * | 2017-04-18 | 2017-08-04 | 十堰知名实业发展有限公司 | A kind of running gate system technique of reducing gearbox |
| CN110303136A (en) * | 2019-07-11 | 2019-10-08 | 北京航空航天大学青岛研究院 | A kind of casting method improving large-sized aluminium alloy wheel mechanical property |
| CN110883327A (en) * | 2019-12-06 | 2020-03-17 | 佛山市南海奔达模具有限公司 | Casting mould with cooling system |
| CN110976815A (en) * | 2019-12-30 | 2020-04-10 | 中信戴卡股份有限公司 | Die water cooling device and system |
| CN113843404A (en) * | 2021-10-22 | 2021-12-28 | 台山市天丞汽车配件有限公司 | Casting method of hub |
| CN114799128A (en) * | 2022-04-01 | 2022-07-29 | 中信戴卡股份有限公司 | Accurate high-efficient water cooling mold structure of aluminum alloy casting wheel |
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| CN106001500A (en) * | 2016-07-03 | 2016-10-12 | 中信戴卡股份有限公司 | Central heat-insulating hole structure of vehicle wheel water-cooling mold |
| CN106001506A (en) * | 2016-07-08 | 2016-10-12 | 中信戴卡股份有限公司 | Improved low-pressure casting top die |
| CN106041023A (en) * | 2016-07-08 | 2016-10-26 | 中信戴卡股份有限公司 | Improved low-pressure casting water-cooling side mould |
| CN106735067A (en) * | 2016-12-29 | 2017-05-31 | 宁波环亚机械制造有限公司 | Automobile filter die casting for shell mould |
| CN106825502A (en) * | 2017-03-03 | 2017-06-13 | 佛山市南海奔达模具有限公司 | A kind of sub-sectional cooling process structure hub mold |
| CN106825502B (en) * | 2017-03-03 | 2019-08-13 | 佛山市南海奔达模具有限公司 | A kind of sub-sectional cooling process structure hub mold |
| CN107008865A (en) * | 2017-04-18 | 2017-08-04 | 十堰知名实业发展有限公司 | A kind of running gate system technique of reducing gearbox |
| CN110303136A (en) * | 2019-07-11 | 2019-10-08 | 北京航空航天大学青岛研究院 | A kind of casting method improving large-sized aluminium alloy wheel mechanical property |
| CN110883327A (en) * | 2019-12-06 | 2020-03-17 | 佛山市南海奔达模具有限公司 | Casting mould with cooling system |
| CN110976815A (en) * | 2019-12-30 | 2020-04-10 | 中信戴卡股份有限公司 | Die water cooling device and system |
| CN113843404A (en) * | 2021-10-22 | 2021-12-28 | 台山市天丞汽车配件有限公司 | Casting method of hub |
| CN114799128A (en) * | 2022-04-01 | 2022-07-29 | 中信戴卡股份有限公司 | Accurate high-efficient water cooling mold structure of aluminum alloy casting wheel |
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Application publication date: 20150218 |