CN205927052U - A local extrusion device for high pressure casting - Google Patents
A local extrusion device for high pressure casting Download PDFInfo
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- CN205927052U CN205927052U CN201620590289.1U CN201620590289U CN205927052U CN 205927052 U CN205927052 U CN 205927052U CN 201620590289 U CN201620590289 U CN 201620590289U CN 205927052 U CN205927052 U CN 205927052U
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- extrusion
- oil cylinder
- pressure ram
- local
- pressure
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Abstract
The utility model provides a local extrusion device for high pressure casting, a local extrusion device for high pressure casting constitute by extrusion type core cover (03), pressure ram (04), extrusion hydro -cylinder (05), extrusion piston (06), its characterized in that: extrusion hydro -cylinder (05) in including the extrusion piston (06), extrusion piston (06) and pressure ram (04) link to each other, and pressure ram (04) be located extrusion type core cover (03), extrusion type core cover (03) is fixed with extrusion hydro -cylinder (05). The utility model discloses a local extrusion device for high pressure casting and method for advantage lies in: structural design is reasonable, can effectively guarantee the extrusion stroke of local extrusion technology, reduces the shrinkage porosite defect of the thick big position of product simultaneously, and the production rejection rate descends, and enterprise economic benefit obviously improves.
Description
Technical field
This utility model is related to casting field, more particularly to a kind of local extrusion device for high-pressure casting.
Background technology
Mould is modern industry, particularly the industrial requisite technique such as automobile, radio, aviation, instrument, article of everyday use
Equipment.At present, because die casting complex structure, wall unevenness are even, setting time is shorter, for " thermal center " position in product structure
Put, through frequently with method be high pressure-charging feeding, optimize pouring gate structure, strengthen cooling etc. method to realize, but by adjustment
Technological parameter is often difficult to realize to the feeding at remote cast gate, and porosity is difficult to meet the car load factory customer requirement of increasingly lifting.
Utility model content
For the technical requirements of above-mentioned aluminium alloy compression casting, the utility model proposes a kind of local of high-pressure casting mould is squeezed
Laminated structure and technique.It can be used for reducing the shrinkage defect of product thermal center position, improves interiors of products quality, reduces porosity
Problem.
In one side of the present utility model, there is provided a kind of local extrusion device for high-pressure casting, described use
In high-pressure casting local extrusion device by extrusion pressing type core retainer plate (03), pressure ram (04), extrusion oil cylinder (05), extrusion oil cylinder piston
(06) formed it is characterised in that：Described extrusion oil cylinder (05) includes extrusion oil cylinder piston (06), described extrusion oil cylinder
Piston (06) is connected with pressure ram (04), and described pressure ram (04) is located in extrusion pressing type core retainer plate (03), extrusion pressing type core retainer plate
(03) fixing with extrusion oil cylinder (05).
At the preferred aspect of this utility model, described extrusion pressing type core retainer plate (03) includes on the direction towards foundry goods (01)
Cavity (12).
At the preferred aspect of this utility model, described extrusion oil cylinder piston (06) is big with the sectional area ratio of pressure ram (04)
In 10.
At the preferred aspect of this utility model, described extrusion oil cylinder piston (06) with the sectional area ratio of pressure ram (04) is
10-40.
In the preferred aspect of this utility model, the sectional area ratio of described extrusion oil cylinder piston (06) and pressure ram (04)
For 12.
At the preferred aspect of this utility model, when extrusion oil cylinder piston (06) does not extrude, pressure ram front end (08) exceeds
Extruded sleeve end face (10) 4～10mm.
Between the preferred aspect of this utility model, the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram (04)
Gap is in 4～10mm.
At the preferred aspect of this utility model, described extrusion oil cylinder piston (06) with the sectional area ratio of pressure ram (04) is
12；When extrusion oil cylinder piston (06) does not extrude, pressure ram front end (08) exceeds extruded sleeve end face (10) 10mm；Extrusion pressing type core retainer plate
Lower cavity inwall (11) and pressure ram (04) outline between gap in 4mm.
In other aspects of the present utility model, the method also describing local compression during high-pressure casting, it is special
Levy and be, described method is included using the local extrusion device being previously described for high-pressure casting, drive extrusion oil cylinder to live
Plug (06), drives pressure ram (04) to be extruded in cast(ing) surface.
At the preferred aspect of this utility model, the crush stroke of described pressure ram (04) reaches 10～30mm, and extrudes
Afterwards pressure ram front end (08) with a distance from cast(ing) surface (07) in 2～5mm.
At the preferred aspect of this utility model, the extruding opening time that two fast transfer points start timing is 0.5～3s, extruding
Time delay is 3～15s.
At the preferred aspect of this utility model, the local compression core return again ejects and is sprayed.
At other aspects of the present utility model, additionally provide a kind of local compression structure for high-pressure casting and technique side
Method, the described local compression structure for aluminium alloy high pressure casting includes extruding boss (02), extrusion pressing type core retainer plate (03), extruding
Bar (04), extrusion oil cylinder (05), extrusion oil cylinder piston (06).Described extrusion piston (06) and the sectional area ratio of pressure ram (04)
More than 10, to ensure sufficiently large extruding force.When oil cylinder piston does not extrude (being in zero-bit), the front end (08) of pressure ram exceeds
Extruded sleeve end face (10) 4～10mm, S shape between the lower cavity inwall (11) of pressure ram front end (08) and extrusion pressing type core retainer plate simultaneously
Become cavity (12)；In pressure ram extrusion process, between the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram (04)
Gap is in 4～10mm (namely extruding boss (02) wall thickness range).Reach good squeezing effect for guarantee local compression technique,
By adjusting, the local compression on die casting machine is opened and delay time is it is ensured that the crush stroke of pressure ram reaches 10～30mm, and
After extruding, pressure ram front end (08), in 2～5mm with a distance from cast(ing) surface (07), and x-ray detection machine is thick big to foundry goods (01)
Part detection display no shrinkage defect.Extruding opening time (two fast transfer points start timing) in described local compression technique is
0.5～3s, extruding time delay is 3～15s, and in coating cycles, the local compression core return needs again to eject and carries out
Spraying, to carry out good cooling and lubrication to extruding core, preventing from, in extrusion process, stuck phenomenon occurs, improving local and squeezing
The life-span of die mould core.
The utility model discloses a kind of local compression structure of high-pressure casting and technique, for aluminium alloy high pressure casting
Local compression structure includes extruding boss (02), extrusion pressing type core retainer plate (03), pressure ram (04), extrusion oil cylinder (05), extrusion oil cylinder
Piston (06).It is characterized in that：Described extrusion oil cylinder piston (06) need to be more than 10 with the sectional area ratio of pressure ram (04), to protect
Demonstrate,prove sufficiently large extruding force.The preferred aspect of this utility model, when oil cylinder piston does not extrude (being in zero-bit), pressure ram front end
(08) exceed extruded sleeve end face (10) 4～10mm, simultaneously the lower cavity inwall of pressure ram front end (08) and extrusion pressing type core retainer plate
(11) form cavity (12) between；In pressure ram extrusion process, the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram
(04) gap between 4～10mm (namely extruding boss (02) wall thickness range, can guarantee that extruding cavity (12) accumulation of heat energy
Power, prevents aluminium liquid from entering premature solidification after cavity, leads to local compression technique adjustable extent to narrow).This utility model is to ensure
Local compression technique reaches squeezing effect well, need to be opened and delay time by adjusting the local compression on die casting machine, protect
The crush stroke of card pressure ram reaches 10～30mm, and after extruding pressure ram front end (08) with a distance from cast(ing) surface (07) 2～
5mm, and thick most of detection display no shrinkage defect to foundry goods (01) for the x-ray detection machine.The preferred aspect of this utility model,
In local compression technique, extruding opening time (two fast transfer points start timing) is 0.5～3s, and extruding time delay is 3～15s.
The preferred aspect of this utility model, in coating cycles, the local compression core return needs again to eject and is sprayed, so that
Good cooling and lubrication are carried out to extruding core, prevents from occurring stuck phenomenon in extrusion process, improve local compression core
Life-span.
Local extrusion device for high-pressure casting of the present utility model and method advantage are：Reasonable in design, energy
The crush stroke of local compression technique is effectively ensured, reduces the shrinkage defect of the thick big position of product simultaneously, produce percent defective and decline,
Business Economic Benefit significantly improves.
Brief description
Hereinafter, to describe embodiment of the present utility model in detail in conjunction with accompanying drawing, wherein：
Fig. 1：Local extrusion device structural representation before extrusion for high-pressure casting；
Fig. 2：Local extrusion device structural representation after extrusion for high-pressure casting；
In figure：01- foundry goods, 02- extruding boss, 03- extrusion pressing type core retainer plate, 04- pressure ram, 05- extrusion oil cylinder, 06- extruding
Oil cylinder piston, 07- cast(ing) surface, 08- pressure ram front end, 10- extruded sleeve end face, the lower cavity inwall of 11- extrusion pressing type core retainer plate,
12- cavity.
Specific embodiment
Test group 1
Local compression structure for aluminium alloy high pressure casting includes extruding boss (02), extrusion pressing type core retainer plate (03), extruding
Bar (04), extrusion oil cylinder (05), extrusion oil cylinder piston (06).Described extrusion oil cylinder piston (06) and the section of pressure ram (04)
Long-pending ratio is 12, to ensure sufficiently large extruding force.When oil cylinder piston does not extrude (being in zero-bit), pressure ram front end (08) is high
Go out extruded sleeve end face (10) 10mm, formed between the lower cavity inwall (11) of pressure ram front end (08) and extrusion pressing type core retainer plate simultaneously
Cavity (12)；In pressure ram extrusion process, the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram (04) outline it
Between gap 10mm (namely extruding boss (02) wall thickness range).Imitate for ensureing that local compression technique reaches good extruding
Really, by adjusting, the local compression on die casting machine is opened and delay time is it is ensured that the crush stroke of pressure ram reaches 15mm, and squeezes
After pressure pressure ram front end (08) with a distance from cast(ing) surface (07) in 2mm, and thick most of inspection to foundry goods (01) for the x-ray detection machine
Survey display no shrinkage defect.In described local compression technique, the extruding opening time (two fast transfer points start timing) is 3s, crowded
Pressure time delay is 3s, and in coating cycles, the local compression core return need to again eject and be sprayed, so as to extrusion pressing type
Core carries out good cooling and lubrication, prevents from occurring stuck phenomenon in extrusion process, improves the life-span of local compression core.
Test group 2
Local compression structure for aluminium alloy high pressure casting includes extruding boss (02), extrusion pressing type core retainer plate (03), extruding
Bar (04), extrusion oil cylinder (05), extrusion oil cylinder piston (06).Described extrusion oil cylinder piston (06) and the section of pressure ram (04)
Long-pending ratio is 12, to ensure sufficiently large extruding force.When oil cylinder piston does not extrude (being in zero-bit), pressure ram front end (08) exceeds
Extruded sleeve end face (10) 4mm, forms empty simultaneously between the lower cavity inwall (11) of pressure ram front end (08) and extrusion pressing type core retainer plate
Chamber (12)；In pressure ram extrusion process, between the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram (04) outline
Gap 4mm (namely extruding boss (02) wall thickness range).Reach good squeezing effect for guarantee local compression technique, lead to
Local compression on toning seamless casting machine is opened and delay time is it is ensured that the crush stroke of pressure ram reaches 10mm, and after extruding
In 3mm with a distance from cast(ing) surface (07), and x-ray detection machine is aobvious to thick most of detection of foundry goods (01) for pressure ram front end (08)
Show no shrinkage defect.In described local compression technique, the extruding opening time (two fast transfer points start timing) is 0.5s, extruding
Time delay is 8s, and in coating cycles, the local compression core return need to again eject and be sprayed, so as to extruding core
Carry out good cooling and lubrication, prevent from occurring stuck phenomenon in extrusion process, improve the life-span of local compression core.
Test group 3
Local compression structure for aluminium alloy high pressure casting includes extruding boss (02), extrusion pressing type core retainer plate (03), extruding
Bar (04), extrusion oil cylinder (05), extrusion oil cylinder piston (06).Described extrusion oil cylinder piston (06) and the section of pressure ram (04)
Long-pending ratio is 12, to ensure sufficiently large extruding force.When oil cylinder piston does not extrude (being in zero-bit), pressure ram front end (08) exceeds
Extruded sleeve end face (10) 10mm, forms empty simultaneously between the lower cavity inwall (11) of pressure ram front end (08) and extrusion pressing type core retainer plate
Chamber (12)；In pressure ram extrusion process, between the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram (04) outline
Gap 4mm (namely extruding boss (02) wall thickness range).Reach good squeezing effect for guarantee local compression technique, lead to
Local compression on toning seamless casting machine is opened and delay time is it is ensured that the crush stroke of pressure ram reaches 10mm, and after extruding
In 5mm with a distance from cast(ing) surface (07), and x-ray detection machine is aobvious to thick most of detection of foundry goods (01) for pressure ram front end (08)
Show no shrinkage defect.In described local compression technique, the extruding opening time (two fast transfer points start timing) is 2s, extrolling
Time is 10s late, and in coating cycles, the local compression core return need to again eject and be sprayed, so as to extruding core
Carry out good cooling and lubrication, prevent from occurring stuck phenomenon in extrusion process, improve the life-span of local compression core.
Result of the test
Had according to above setting in the research and development workshop of engineering and technological research institute of CITIC Dicastal Co., Ltd.
Body is tested.Result of the test shows, incidence rate in test group 1-3 for the casting wasted product that the shrinkage defect of the thick big position of product leads to
Have dropped 70.24%, 76.20% and 87.15% respectively.
As can be seen here, the local extrusion device of each test group of this utility model makes the shrinkage defect of the thick big position of product
The casting wasted product leading to reduces.And the pressurizing unit of test group 3 makes the shrinkage defect of the thick big position of product unexpectedly
Greatly reduce, so that production cost significantly declines.
Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and be carried out, protection domain of the present utility model can not be limited with this,
All equivalence changes made according to this utility model spirit or modification, all should cover in protection domain of the present utility model
Interior.
Claims (8)
1. a kind of local extrusion device for high-pressure casting, the described local extrusion device for high-pressure casting is by extrusion pressing type
Core retainer plate (03), pressure ram (04), extrusion oil cylinder (05), extrusion oil cylinder piston (06) formed it is characterised in that：Described extruding
Oil cylinder (05) includes extrusion oil cylinder piston (06), and described extrusion oil cylinder piston (06) is connected with pressure ram (04), and institute
The pressure ram (04) stated is located in extrusion pressing type core retainer plate (03), and extrusion pressing type core retainer plate (03) is fixing with extrusion oil cylinder (05).
2. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that described extruding core
Set (03) includes cavity (12) on the direction towards foundry goods (01).
3. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that described extrusion oil cylinder
The sectional area of piston (06) and pressure ram (04) is than more than 10.
4. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that described extrusion oil cylinder
The sectional area of piston (06) and pressure ram (04) ratio is for 10-40.
5. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that described extrusion oil cylinder
The sectional area of piston (06) and pressure ram (04) ratio is for 12.
6. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that work as extrusion oil cylinder piston
(06), when not extruding, pressure ram front end (08) exceeds extruded sleeve end face (10) 4～10mm.
7. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that under extrusion pressing type core retainer plate
Gap between portion's cavity inner wall (11) and pressure ram (04) outline is in 4～10mm.
8. the local extrusion device for high-pressure casting according to claim 1 is it is characterised in that described extrusion oil cylinder
The sectional area of piston (06) and pressure ram (04) ratio is for 12；When extrusion oil cylinder piston (06) does not extrude, pressure ram front end (08)
Exceed extruded sleeve end face (10) 10mm；Between between the lower cavity inwall (11) of extrusion pressing type core retainer plate and pressure ram (04) outline
Gap is in 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590289.1U CN205927052U (en) | 2016-06-16 | 2016-06-16 | A local extrusion device for high pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590289.1U CN205927052U (en) | 2016-06-16 | 2016-06-16 | A local extrusion device for high pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205927052U true CN205927052U (en) | 2017-02-08 |
Family
ID=57933089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620590289.1U Expired - Fee Related CN205927052U (en) | 2016-06-16 | 2016-06-16 | A local extrusion device for high pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205927052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903922A (en) * | 2016-06-16 | 2016-08-31 | 中信戴卡股份有限公司 | Local extrusion device used for high-pressure casting |
-
2016
- 2016-06-16 CN CN201620590289.1U patent/CN205927052U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903922A (en) * | 2016-06-16 | 2016-08-31 | 中信戴卡股份有限公司 | Local extrusion device used for high-pressure casting |
| US10201850B2 (en) | 2016-06-16 | 2019-02-12 | Citic Dicastal Co., Ltd. | Local extrusion device for high-pressure casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20210616 |