CN106735068B - The pressure casting method of automobile engine cylinder cover - Google Patents
The pressure casting method of automobile engine cylinder cover Download PDFInfo
- Publication number
- CN106735068B CN106735068B CN201611248412.2A CN201611248412A CN106735068B CN 106735068 B CN106735068 B CN 106735068B CN 201611248412 A CN201611248412 A CN 201611248412A CN 106735068 B CN106735068 B CN 106735068B
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- China
- Prior art keywords
- automobile engine
- engine cylinder
- cylinder cover
- chamber
- die 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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to casting fields, it is therefore an objective to provide a kind of pressure casting method of automobile engine cylinder cover.A kind of pressure casting method of automobile engine cylinder cover, the automobile engine cylinder are covered with dished cover and four side pipes；The die casting of automobile engine cylinder cover is equipped with running gate system, slag trap, sets type chamber there are four side pipe chamber and upper dished cover chamber；The intracavitary die casting for being uniformly sprayed with release agent of type is fixed on die casting machine and is preheating to set temperature by step 1；The aluminium alloy for completing melting is quantitatively inputted the feed compartment of die casting machine by step 2；Aluminium alloy is entered in type chamber to form by step 3, die casting compressing head through running gate system injection, and forming process includes initial low speed injection stage and high speed injection stage.The pressure casting method of the automobile engine cylinder cover makes automobile engine cylinder cover not generate stomata, slag inclusion casting flaw.
Description
Technical field
The present invention relates to foundry engieering, especially a kind of pressure casting method of automobile engine cylinder cover.
Background technique
Automobile engine cylinder cover includes setting that there are four the main bodys of side pipe, the dished cover set on main body upper end；Automobile engine
Structure is complicated often by casting method preparing blank for cylinder cover；The extrusion casting method of automobile engine cylinder the cover can be from patent public affairs
Announcement number is understood for a kind of extrusion casting method of magnesium alloy automobile engine cylinder cover disclosed in CN201310721769.8；
The casting method of traditional automobile engine cylinder cover there are the deficiency that side pipe, dished cover are also easy to produce stomata, slag inclusion casting flaw, because
This, design a kind of automobile engine cylinder cover be not likely to produce stomata, slag inclusion casting flaw automobile engine cylinder cover pressure
Casting method becomes urgent problem to be solved.
Summary of the invention
The purpose of the invention is to overcome the casting method of current automobile engine cylinder cover, there are side pipe, dished cover are easy
The deficiency for generating stomata, slag inclusion casting flaw provides a kind of automobile engine cylinder cover and is not likely to produce stomata, slag inclusion casting flaw
Automobile engine cylinder cover pressure casting method.
A kind of pressure casting method of automobile engine cylinder cover, the automobile engine cylinder are covered with dished cover and four
Side pipe；The die casting of automobile engine cylinder cover is equipped with running gate system, slag trap, sets that there are four side pipe chamber and upper dished cover chambers
Type chamber；The intracavitary die casting for being uniformly sprayed with release agent of type is fixed on die casting machine and is preheating to set temperature by step 1；Step
Rapid two, the aluminium alloy for completing melting is quantitatively inputted to the feed compartment of die casting machine；Step 3, die casting compressing head is by aluminium alloy through being poured
System injection enters to be formed in type chamber, and forming process includes initial low speed injection stage and high speed injection stage.Initial low speed injection
Stage enables the gas in type chamber sufficiently to release by slag trap, and the inside of shaped article is avoided not generate gas hole defect；At a high speed
The injection stage can accelerate molten metal flowing and Quick-pressurizing solidification and crystallization, avoid product caused by reducing because of molten metal temperature drop mobility
Generate slag inclusion cold shut defect；The pressure casting method of the automobile engine cylinder cover makes automobile engine cylinder cover not generate stomata, folder
Slag casting flaw.
Preferably, the slag trap has four for corresponding and being connected to side pipe chamber.Conducive to type chamber and side pipe chamber
In gas be effectively discharged by slag trap, and flow into slag trap with the slag inclusion of molten metal flowing.
Preferably, the running gate system includes: main running channel, in several masters being connected to respectively with main running channel and type chamber
Running channel, several branch ingates being connected to respectively with main running channel and upper dished cover chamber.When casting, molten metal is through main ingate from lower part
Type is filled simultaneously from top with through branch ingate, temperature is uniform up and down for molten metal in type chamber, and it is uniform to be conducive to castings crystallization.
Preferably, the poring rate in the initial low speed injection stage is 1.2m/s to 1.3m/s, high speed injection rank
The poring rate of section is 42 m/s to 46 m/s.About 20 DEG C of temperature difference after formed product, temperature is uniform, and reduction generation stomata,
The risk of slag inclusion casting flaw.
Compared with prior art, the beneficial effects of the present invention are: the pressure casting method of the automobile engine cylinder cover makes automobile
Engine cylinder cover is not likely to produce stomata, slag inclusion casting flaw.Slag trap has four for corresponding and being connected to side pipe chamber, benefit
Gas in type chamber and side pipe chamber is effectively discharged by slag trap, and flows into slag trap with the slag inclusion of molten metal flowing.Casting
When, molten metal fills type simultaneously from top through main ingate from lower part and through branch ingate, and temperature is uniform up and down for molten metal in type chamber,
It is uniform conducive to castings crystallization.The poring rate in initial low speed injection stage is 1.2m/s to 1.3m/s, and the high speed injection stage pours
Note speed is 42 m/s to 46 m/s, and about 20 DEG C of temperature difference after formed product, temperature is uniform, and reduces and generate stomata, slag inclusion casting
Make the risk of defect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automobile engine cylinder cover of the present invention, the running gate system of die casting, slag trap.
In figure: automobile engine cylinder cover 1, upper dished cover 2, side pipe 3, running gate system 4, slag trap 5, main running channel 6, it is main in pour
Road 7, branch ingate 8.
Specific embodiment
As shown in Fig. 1: a kind of pressure casting method of automobile engine cylinder cover, the automobile engine cylinder cover 1 are set
There are upper dished cover 2 and four side pipes 3；The die casting of automobile engine cylinder cover be equipped with running gate system 4, slag trap 5, set there are four
The type chamber of side pipe chamber and upper dished cover chamber；The intracavitary die casting for being uniformly sprayed with release agent of type is fixed on die casting machine by step 1
And it is preheating to set temperature；The aluminium alloy for completing melting is quantitatively inputted the feed compartment of die casting machine by step 2；Step 3, die casting
Aluminium alloy is entered in type chamber to form by compressing head through running gate system injection, and forming process includes initial low speed injection stage and high ram compression
Penetrate the stage.
The slag trap has four for corresponding and being connected to side pipe chamber.
The running gate system includes: main running channel 6, two main ingates 7 being connected to respectively with main running channel and type chamber, and two
The branch ingate 8 being connected to respectively with main running channel and upper dished cover chamber.
The poring rate in the initial low speed injection stage is 1.25m/s, and the poring rate in high speed injection stage is
44m/s；The poring rate is the poring rate of main ingate 7 and the poring rate of branch ingate 8.
The beneficial effects of the present invention are: the pressure casting method of the automobile engine cylinder cover produces automobile engine cylinder cover not
Angry hole, slag inclusion casting flaw.Slag trap has four for corresponding and being connected to side pipe chamber, conducive in type chamber and side pipe chamber
Gas is effectively discharged by slag trap, and flows into slag trap with the slag inclusion of molten metal flowing.When casting, molten metal is through main ingate
Type is filled simultaneously from top from lower part and through branch ingate, temperature is uniform up and down for molten metal in type chamber, and it is uniform to be conducive to castings crystallization.Just
The poring rate in low speed injection stage beginning is 1.25m/s, and the poring rate in high speed injection stage is 44m/s, temperature after formed product
About 20 DEG C of degree difference, temperature is uniform, and reduces the risk for generating stomata, slag inclusion casting flaw.The present invention can be changed as various ways
Apparent to one skilled in the art, such change is not regarded as a departure from the scope of the present invention.It is all such right
The technical staff in the field obviously modifies, and is included within the scope of present claims.
Claims (2)
1. a kind of pressure casting method of automobile engine cylinder cover, the automobile engine cylinder are covered with dished cover and four sides
Pipe；The die casting of automobile engine cylinder cover is equipped with running gate system, slag trap, sets type there are four side pipe chamber and upper dished cover chamber
Chamber；It is characterized in that step 1, the intracavitary die casting for being uniformly sprayed with release agent of type is fixed on die casting machine and is preheating to setting
Temperature；The aluminium alloy for completing melting is quantitatively inputted the feed compartment of die casting machine by step 2；Step 3, die casting compressing head is by alloy
Liquid enters in type chamber through running gate system injection to be formed, and forming process includes initial low speed injection stage and high speed injection stage；Casting
System includes: main running channel, several main ingates being connected to respectively with main running channel and type chamber, several respectively with main running channel and upper
The branch ingate of dished cover chamber connection；The poring rate in initial low speed injection stage is 1.2m/s to 1.3m/s, high speed injection stage
Poring rate be 42 m/s to 46 m/s.
2. the pressure casting method of automobile engine cylinder cover according to claim 1, characterized in that the slag trap have with
Side pipe chamber correspond and connection four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248412.2A CN106735068B (en) | 2016-12-29 | 2016-12-29 | The pressure casting method of automobile engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248412.2A CN106735068B (en) | 2016-12-29 | 2016-12-29 | The pressure casting method of automobile engine cylinder cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735068A CN106735068A (en) | 2017-05-31 |
| CN106735068B true CN106735068B (en) | 2019-02-15 |
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ID=58929334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248412.2A Active CN106735068B (en) | 2016-12-29 | 2016-12-29 | The pressure casting method of automobile engine cylinder cover |
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| Country | Link |
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| CN (1) | CN106735068B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107552757B (en) * | 2017-09-27 | 2019-07-16 | 广东鸿图南通压铸有限公司 | A kind of eccentric die-casting process for stopping runner system |
Citations (5)
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|---|---|---|---|---|
| CN101758195A (en) * | 2010-02-08 | 2010-06-30 | 美诺精密压铸(上海)有限公司 | Die-casting method, die and die-casting system thereof |
| CN103567413A (en) * | 2013-09-30 | 2014-02-12 | 胜赛思精密压铸（扬州）有限公司 | Die-casting device for solving air hole defect of die-casting product and die-casting process thereof |
| CN203495174U (en) * | 2013-09-02 | 2014-03-26 | 无锡红旗电机配件厂 | Die-casting system for forming safety belt body castings |
| CN105014039A (en) * | 2015-08-25 | 2015-11-04 | 东莞市东升压铸模具有限公司 | Die-casting die capable of improving sand hole distribution, die-casting process and sand-hole-free product obtaining method |
| CN205362599U (en) * | 2016-01-20 | 2016-07-06 | 济南奥贝玛机械设备有限公司 | Mould is die casting machine for shaping |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000052017A (en) * | 1998-08-13 | 2000-02-22 | Sumitomo Light Metal Ind Ltd | Low-speed filling die-cast method and equipment |
-
2016
- 2016-12-29 CN CN201611248412.2A patent/CN106735068B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758195A (en) * | 2010-02-08 | 2010-06-30 | 美诺精密压铸(上海)有限公司 | Die-casting method, die and die-casting system thereof |
| CN203495174U (en) * | 2013-09-02 | 2014-03-26 | 无锡红旗电机配件厂 | Die-casting system for forming safety belt body castings |
| CN103567413A (en) * | 2013-09-30 | 2014-02-12 | 胜赛思精密压铸（扬州）有限公司 | Die-casting device for solving air hole defect of die-casting product and die-casting process thereof |
| CN105014039A (en) * | 2015-08-25 | 2015-11-04 | 东莞市东升压铸模具有限公司 | Die-casting die capable of improving sand hole distribution, die-casting process and sand-hole-free product obtaining method |
| CN205362599U (en) * | 2016-01-20 | 2016-07-06 | 济南奥贝玛机械设备有限公司 | Mould is die casting machine for shaping |
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| CN106735068A (en) | 2017-05-31 |
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Denomination of invention: Die Casting Method for Automotive Engine Cylinder Cover Effective date of registration: 20230707 Granted publication date: 20190215 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Beilun sub branch Pledgor: NINGBO HUANYA MANUFACTORY Co.,Ltd. Registration number: Y2023980047763 |