CN108555248A - A kind of casting method and casting mould of automobile engine water pump shell - Google Patents
A kind of casting method and casting mould of automobile engine water pump shell Download PDFInfo
- Publication number
- CN108555248A CN108555248A CN201810030971.9A CN201810030971A CN108555248A CN 108555248 A CN108555248 A CN 108555248A CN 201810030971 A CN201810030971 A CN 201810030971A CN 108555248 A CN108555248 A CN 108555248A
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- China
- Prior art keywords
- water pump
- automobile engine
- mold
- pump shell
- engine water
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of casting methods of automobile engine water pump shell, include the following steps：S1. casting mould is made；S2. it combines sand core and molds；S3. overturning cast；S4. it is cooled and shaped simultaneously knockout；S5. product testing.The casting method of the automobile engine water pump shell of the present invention is by making casting mould, combination sand core and molding, overturn cast, cooling and shaping simultaneously knockout and product testing, the quick precision casting to automobile engine water pump shell is realized, solves the problems such as casting technique complexity of automobile engine water pump shell in the prior art, automobile engine water pump shell inner cavity molding effect is poor.The casting method of the automobile engine water pump shell of the present invention has many advantages, such as that flow is simple, the time is short, accuracy is high.The invention also discloses a kind of casting moulds of automobile engine water pump shell.
Description
Technical field
The present invention relates to automobile engine water pump shell fields, more particularly to a kind of casting side of automobile engine water pump shell
Method and casting mould.
Background technology
Automobile engine water pump is the important component of automobile engine, and automobile engine water pump is widely used centrifugal
Water pump, basic structure include the parts such as water pump shell, terminal pad or belt pulley, pump shaft, water pump vane and water seal arrangement.
Since the inner cavity channel structure of automobile engine water pump shell is complex, can not be again molded by mold, it can only
It is molded by sand core, therefore, engine water pump case is generally required to be cast by sand core.Existing automobile engine water pump shell
One sand core of generally use, which is placed in mold, to be cast, the automobile engine water pump shell inner cavity that this casting method is cast out
Channel structure is inaccurate, and casting process is complicated, the casting time is long.
Invention content
Based on this, the object of the present invention is to provide a kind of casting methods of automobile engine water pump shell, with flow
Simply, the advantage that the time is short, accuracy is high.
A kind of casting method of automobile engine water pump shell, includes the following steps：
S1. casting mould is made：
According to the shell shape and inner cavity extraction model of automobile engine water pump shell to be processed, upper mold and lower mold are made
And its die cavity, liquid material bucket of the setting for overturning cast, the die cavity of the liquid material bucket and lower mold in the side of the lower mold
Connection；
S2. it combines sand core and molds：
Using upper mold and lower mould cavity made from air gun cleaning S1, and successively by lower sand core and upper sand core combination settings
In lower mold, upper mold lid is located on lower mold, heating of top mold and lower mold, and heating of top mold and lower mold, is made
The temperature of upper mold is at 280 ± 20 DEG C, and the temperature of lower mold is at 270 ± 20 DEG C；
S3. overturning cast：
Metallic solution is poured into the liquid material bucket, lower mold and upper mold after overturning S2 heating pour metallic solution
It notes into the die cavity of lower mold and upper mold, flip angle is 10 ° -20 °；
S4. it is cooled and shaped simultaneously knockout：
Metallic solution in S3 in lower mold and upper mold is cooled down, upper mold is removed, automobile after molding is sent out
Upper sand core and lower sand core in motivation water pump shell carry out knockout processing；
S5. product testing：
The automobile engine water pump shell of S4 casting and formings is detected, that detects qualification is put into qualified products area.
The casting method of the automobile engine water pump shell of the present invention is by making casting mould, combination sand core and molding, turn over
Turn cast, be cooled and shaped and knockout and product testing, realizes the quick precision casting to automobile engine water pump shell,
Casting technique complexity, the automobile engine water pump shell inner cavity molding effect for solving automobile engine water pump shell in the prior art are poor
The problems such as.The casting method of the automobile engine water pump shell of the present invention has many advantages, such as that flow is simple, the time is short, accuracy is high.
Further, in the S3, after upper mold and lower die casting, negative pressure ventilation is carried out to upper mold and lower mold
Processing, opening time of negative pressure ventilation are 5-10s after cast, when negative pressure ventilation a length of 100-140s, the air pressure of negative pressure ventilation is
0.1-0.2MPa。
Further, the flip angle in the S3 is 15 °.
Further, in the S4, the metallic solution in lower mold and upper mold is cooled down by water cooling and air cooling.
Further, in the S4, the water cooling of the upper mold starts the time as 5-15s, water cooling duration 30- after cast
50s；The water cooling of lower mold starts the time as 15-25s, water cooling duration 30-50s after cast；The water cooling stream of upper mold and lower mold
Amount is 3.0 ± 0.5L/min.
Further, it in the S4, immediately begins to be gas-cooled to the upper mold and lower mold after S3 casting completes,
A length of 50-70s when air cooling, air cooling pressure are 0.2 ± 0.1MPa.
Further, in the S4, the upper sand core to automobile engine water pump shell after molding and lower sand using shakeout
Core carries out knockout processing.
Further, the metallic solution is aluminium alloy solution；The aluminium poured into the S3 in the liquid material bucket closes
720 ± 10 DEG C of the temperature of gold solution.
Further, further include between the S4 and S5：Remaining sand is carried out to knockout treated automobile engine water pump shell
Processing, and clear up riser and burr.
It is described the present invention also provides a kind of casting mould of automobile engine water pump shell, including upper mold and lower mold
Die cavity is both provided in upper mold and lower mold, the upper mold lid is located on the lower mold, and the side of the lower mold is set
It is equipped with the liquid material bucket for overturning cast, the liquid material bucket is connected to the die cavity of the lower mold.
Compared with the existing technology, the casting mould of automobile engine water pump shell of the invention solves existing car engine
The problems such as casting mould structure of machine water pump shell is complicated, casting operation is difficult, with that simple in structure, casting operation is simple etc. is excellent
Point.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Description of the drawings
Fig. 1 is the exemplary plot of certain car model engine water pump case.
Fig. 2 is the exemplary plot of another angle of certain car model engine water pump case.
Fig. 3 is the inner cavity extraction model schematic diagram of certain car model engine water pump case.
Fig. 4 is the structural schematic diagram of lower mold.
Fig. 5 is the structural schematic diagram of the casting mould of the automobile engine water pump shell of the present invention.
Specific implementation mode
Embodiment one
Please refer to Fig.1-Fig. 5.The casting method of the automobile engine water pump shell of the present embodiment, includes the following steps：
S1. casting mould is made：
According to the shell shape a of automobile engine water pump shell to be processed and inner cavity extraction model b, upper mold 1 is made under
Mold 2 and its die cavity, liquid material bucket 21 of the setting for overturning cast in the side of the lower mold 2, the liquid material bucket 21 is under
The die cavity of mold 2 is connected to.
S2. it combines sand core and molds：
Using upper mold 1 and lower 2 die cavity of mold made from air gun cleaning S1, and lower sand core 4 and upper sand core 3 are combined successively
It is arranged in lower mold 2, the lid of upper mold 1 is located on lower mold 2, heating of top mold 1 and lower mold 2, and 1 He of heating of top mold
Lower mold 2 makes the temperature of upper mold 1 control at 280 ± 20 DEG C, and the temperature of lower mold 2 is controlled at 270 ± 20 DEG C.
S3. overturning cast：
Metallic solution, the lower mold 2 after overturning S2 heating and upper mold 1 are poured into the liquid material bucket 21, metal is molten
Liquid is cast into the die cavity of lower mold 2 and upper mold 1, and flip angle is 10 ° -20 °.The metallic solution of the present embodiment is aluminium
Alloy solution.The temperature for pouring into the aluminium alloy solution in the liquid material bucket 21 is controlled at 720 ± 10 DEG C.The institute of the present embodiment
It is 15 ° to state flip angle.
After upper mold 1 and the cast of lower mold 2, negative pressure ventilation processing, negative pressure ventilation are carried out to upper mold 1 and lower mold 2
Opening time be 5-10s after cast, when negative pressure ventilation a length of 100-140s, the air pressure of negative pressure ventilation is 0.1-0.2MPa.This
The opening time of the negative pressure ventilation of embodiment is 10s after cast, when negative pressure ventilation a length of 120s.
S4. it is cooled and shaped simultaneously knockout：
Metallic solution in S3 in lower mold 2 and upper mold 1 is cooled down, upper mold 1 is removed, by automobile after molding
Upper sand core 3 and lower sand core 4 in engine water pump case carry out knockout processing.
Metallic solution in lower mold 2 and upper mold 1 is cooled down by water cooling and air cooling.
The water cooling of the upper mold 1 starts the time as 5-15s after cast, water cooling duration 30-50s, the upper mold of the present embodiment
It is 10s after cast that the water cooling of tool 1, which starts the time, when water cooling a length of 40s；The water cooling of lower mold 2 starts the time as 15- after cast
25s, water cooling duration 30-50s, it is 20s after cast that the water cooling of the lower mold 2 of the present embodiment, which starts the time, when water cooling a length of 40s；
The water cooling flow control of upper mold 1 and lower mold 2 is in 3.0 ± 0.5L/min.
Immediately begin to be gas-cooled to the upper mold 1 and lower mold 2 after S3 casting completes, when air cooling a length of 50-
70s, when air cooling of the present embodiment a length of 60s, air cooling pressure is 0.2 ± 0.1MPa.
The present embodiment falls the upper sand core 3 and lower sand core 4 of automobile engine water pump shell after molding using shakeout
Sand processing.
Preferably, remaining sand processing is carried out to knockout treated automobile engine water pump shell, and clears up riser and burr.
S5. product testing：
The automobile engine water pump shell of S4 casting and formings is detected, that detects qualification is put into qualified products area.
Compared with the existing technology, the casting method of automobile engine water pump shell of the invention is by making casting mould, group
It closes sand core and molds, overturn cast, cooling and shaping simultaneously knockout and product testing, realize to automobile engine water pump shell
Quick precision casting, the casting technique that solves automobile engine water pump shell in the prior art is complicated, automobile engine water pump
The problems such as shell inner cavity molding effect is poor.The present invention automobile engine water pump shell casting method have flow is simple, the time is short,
The advantages that accuracy is high.
Please refer to Fig. 4 and Fig. 5, the casting mould of automobile engine water pump shell of the invention, including upper mold and lower mold
2, die cavity is both provided in the upper mold 1 and lower mold 2, the lid of the upper mold 1 is located on the lower mold 2, the lower die
The side of tool 2 is provided with the liquid material bucket 21 for overturning cast, and the liquid material bucket 21 is connected to the die cavity of the lower mold 2.
Compared with the existing technology, the casting mould of automobile engine water pump shell of the invention solves existing car engine
The problems such as casting mould structure of machine water pump shell is complicated, casting operation is difficult, with that simple in structure, casting operation is simple etc. is excellent
Point.
Embodiment two
The automobile engine of the casting process and embodiment one of the casting method of the automobile engine water pump shell of the present embodiment
The casting process of the casting method of water pump shell is roughly the same, the difference is that,
In the S3, opening time of negative pressure ventilation is 5s after cast, when negative pressure ventilation a length of 140s.
In the S4, it is 5s after cast that the water cooling of upper mold 1, which starts the time, when water cooling a length of 30s；The water cooling of lower mold 2
It is 15s after cast to start the time, when water cooling a length of 30s.
In the S4, when air cooling a length of 50s.
Embodiment three
The automobile engine of the casting process and embodiment one of the casting method of the automobile engine water pump shell of the present embodiment
The casting process of the casting method of water pump shell is roughly the same, the difference is that,
In the S3, opening time of negative pressure ventilation is 5s after cast, when negative pressure ventilation a length of 100s.
In the S4, it is 15s after cast that the water cooling of upper mold 1, which starts the time, when water cooling a length of 50s；The water cooling of lower mold 2
It is 25s after cast to start the time, when water cooling a length of 50s.
In the S4, when air cooling a length of 70s.
Compared with the existing technology, the casting method of automobile engine water pump shell of the invention is by making casting mould, group
It closes sand core and molds, overturn cast, cooling and shaping simultaneously knockout and product testing, realize to automobile engine water pump shell
Quick precision casting, the casting technique that solves automobile engine water pump shell in the prior art is complicated, automobile engine water pump
The problems such as shell inner cavity molding effect is poor.The present invention automobile engine water pump shell casting method have flow is simple, the time is short,
The advantages that accuracy is high.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.
Claims (10)
1. a kind of casting method of automobile engine water pump shell, includes the following steps：
S1. casting mould is made：
According to the shell shape and inner cavity extraction model of automobile engine water pump shell to be processed, make upper mold and lower mold and its
Die cavity, in the side of the lower mold, liquid material bucket of the setting for overturning cast, the liquid material bucket are connected to the die cavity of lower mold；
S2. it combines sand core and molds：
Using upper mold and lower mould cavity made from air gun cleaning S1, and successively by lower sand core and upper sand core combination settings under
In mold, upper mold lid is located on lower mold, heating of top mold and lower mold, and heating of top mold and lower mold, makes upper mold
The temperature of tool is at 280 ± 20 DEG C, and the temperature of lower mold is at 270 ± 20 DEG C；
S3. overturning cast：
Metallic solution is poured into the liquid material bucket, metallic solution is cast by lower mold and upper mold after overturning S2 heating
In the die cavity of lower mold and upper mold, flip angle is 10 ° -20 °；
S4. it is cooled and shaped simultaneously knockout：
Metallic solution in S3 in lower mold and upper mold is cooled down, upper mold is removed, by automobile engine after molding
Upper sand core and lower sand core in water pump shell carry out knockout processing；
S5. product testing：
The automobile engine water pump shell of S4 casting and formings is detected, that detects qualification is put into qualified products area.
2. the casting method of automobile engine water pump shell according to claim 1, it is characterised in that：In the S3, to upper
After mold and lower die casting, negative pressure ventilation processing is carried out to upper mold and lower mold, the opening time of negative pressure ventilation is cast
5-10s afterwards, when negative pressure ventilation a length of 100-140s, the air pressure of negative pressure ventilation is 0.1-0.2MPa.
3. the casting method of automobile engine water pump shell according to claim 1, it is characterised in that：Overturning in the S3
Angle is 15 °.
4. the casting method of automobile engine water pump shell according to claim 1, it is characterised in that：In the S4, under
Metallic solution in mold and upper mold is cooled down by water cooling and air cooling.
5. the casting method of automobile engine water pump shell according to claim 4, it is characterised in that：It is described in the S4
The water cooling of upper mold starts the time as 5-15s, water cooling duration 30-50s after cast；After the water cooling of lower mold starts the time as cast
15-25s, water cooling duration 30-50s；The water cooling flow of upper mold and lower mold is 3.0 ± 0.5L/min.
6. the casting method of automobile engine water pump shell according to claim 5, it is characterised in that：In the S4, in S3
Immediately begin to be gas-cooled to the upper mold and lower mold after casting complete, when air cooling a length of 50-70s, air cooling pressure is 0.2
±0.1MPa。
7. the casting method of automobile engine water pump shell according to claim 1, it is characterised in that：In the S4, use
Shakeout carries out knockout processing to the upper sand core of automobile engine water pump shell after molding and lower sand core.
8. according to the casting method of claim 1-7 any one of them automobile engine water pump shells, it is characterised in that：The gold
Category solution is aluminium alloy solution；720 ± 10 DEG C of the temperature of the aluminium alloy solution in the liquid material bucket is poured into the S3.
9. according to the casting method of claim 1-7 any one of them automobile engine water pump shells, it is characterised in that：The S4
Further include between S5：Remaining sand processing is carried out to knockout treated automobile engine water pump shell, and clears up riser and burr.
10. a kind of casting mould of automobile engine water pump shell, it is characterised in that：Including upper mold and lower mold, the upper mold
It is both provided with die cavity in tool and lower mold, the upper mold lid is located on the lower mold, and the side of the lower mold is provided with
Liquid material bucket for overturning cast, the liquid material bucket are connected to the die cavity of the lower mold.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810030971.9A CN108555248A (en) | 2018-01-12 | 2018-01-12 | A kind of casting method and casting mould of automobile engine water pump shell |
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| CN201810030971.9A CN108555248A (en) | 2018-01-12 | 2018-01-12 | A kind of casting method and casting mould of automobile engine water pump shell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680170A (en) * | 2018-11-30 | 2019-04-26 | 江苏文灿压铸有限公司 | A kind of casting technique of the water-cooling motor cabinet for new-energy automobile |
| CN111151718A (en) * | 2020-01-19 | 2020-05-15 | 四川省犍为恒益铝业有限公司 | Casing casting forming method |
| CN112091193A (en) * | 2020-07-30 | 2020-12-18 | 陈金明 | Processing technology of hollow pipe fitting |
| CN117960999A (en) * | 2024-04-01 | 2024-05-03 | 安徽省庐江县盛林机械有限公司 | Nodular cast iron pump body for fire control and preparation method thereof |
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|---|---|---|---|---|
| CN109680170A (en) * | 2018-11-30 | 2019-04-26 | 江苏文灿压铸有限公司 | A kind of casting technique of the water-cooling motor cabinet for new-energy automobile |
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| CN112091193A (en) * | 2020-07-30 | 2020-12-18 | 陈金明 | Processing technology of hollow pipe fitting |
| CN117960999A (en) * | 2024-04-01 | 2024-05-03 | 安徽省庐江县盛林机械有限公司 | Nodular cast iron pump body for fire control and preparation method thereof |
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Application publication date: 20180921 |