CN110449551A - A kind of gravity-assist pouring investment casting method - Google Patents
A kind of gravity-assist pouring investment casting method Download PDFInfo
- Publication number
- CN110449551A CN110449551A CN201910790782.6A CN201910790782A CN110449551A CN 110449551 A CN110449551 A CN 110449551A CN 201910790782 A CN201910790782 A CN 201910790782A CN 110449551 A CN110449551 A CN 110449551A
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- formwork
- gravity
- metal
- shake table
- casting method
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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
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- 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
- B22D27/08—Shaking, vibrating, or turning of moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Prosthetics (AREA)
Abstract
The present invention provides a kind of gravity-assist pouring investment casting method, the following steps are included: providing shake table, corresponding formwork is prepared according to the shape of casting to be manufactured, the formwork is placed on shake table again, corresponding raw metal is then equipped with according to the material of casting to be manufactured, then molten metal is made in the raw metal melting, open shake table, it vibrates formwork with high-frequency vibrating table, while passing through full form casting process by the pouring metal melt within formwork, to obtain casting after metal liquid condensing.Using technical solution of the present invention, formwork is vibrated with shake table by shake table, vibrate the molten metal being cast within formwork also therewith, to interrupt the direction of growth of crystal grain in molten metal, use the crystal grain refinement in molten metal, and so that the gas dissolved in molten metal is escaped, avoid generating pin hole or gas hole defect in cast(ing) surface after metal liquid condensing, improve the Forming Quality of finished product cast and the machinery of casting, mechanical property.
Description
Technical field
The present invention relates to full form casting process technical fields, particularly relate to a kind of gravity-assist pouring investment casting method.
Background technique
With the continuous development of machining manufacturing technology, requirement of the people to component of machine product is higher and higher, leads to
The shape of product and structure that over mechanical processing produces are also increasingly diversified, and the component of machine product of these diversified shapes is normal
It is manufactured using model casting moulding process, however in the model casting moulding process of certain alloying metals, casting
It is easy to appear needle pore defect, influences the service performance of finished product cast, it must be made to scrap, resource is caused greatly to waste,
In the prior art, the needle pore defect in order to overcome casting to generate in molding process, it will usually to phase in casting process
Corresponding grain refiner is added within the alloying metal liquid answered, existing grain refiner is mostly aluminium strontium alterant, however, aluminium
Strontium alterant must be strictly controlled its usage amount, and the activity of the metal components such as aluminium, strontium in aluminium strontium alterant when in use
It is higher, it is easy to chemically react with other alloying components in alloying metal liquid, is present in needle pore defect still locally
In casting, the Forming Quality and mechanical property of finished product cast are influenced, and grain refiner preparation process is more complex, causes casting
Cast shaping process cost is excessively high.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of gravity-assist pouring investment casting methods.
The present invention is achieved by the following technical programs.
The present invention provides a kind of gravity-assist pouring investment casting methods, comprising the following steps:
Shake table is provided, corresponding formwork is prepared according to the shape of casting to be manufactured, then the formwork is placed in the vibration
On platform, corresponding raw metal is then equipped with according to the material of casting to be manufactured, then metal is made in the raw metal melting
Liquid opens shake table, makes the formwork as high-frequency vibrating table vibrates, while passing through full form casting process for the pouring metal melt
Within the formwork, to obtain casting after metal liquid condensing.
The shake table direction of vibration is to vibrate up and down along vertical direction.
The shake table vibration frequency is not less than 2000Hz.
The shake table vibration duration is at least 15min~35min.
The gravity-assist pouring investment casting method further includes during molten metal is made in the raw metal melting
It is kept stirring, and clears up dross therein.
The material of the raw metal is aluminium alloy.
The trade mark of the aluminium alloy is ZL116.
The gravity-assist pouring investment casting method further includes making the gold after molten metal is made in raw metal melting
Belong to liquid temperature and remain 740 DEG C~760 DEG C, then by the pouring metal melt within the formwork, obtains casting.
The beneficial effects of the present invention are: technical solution of the present invention is used, by the casting process of model casting,
Formwork is vibrated with shake table by shake table, vibrates the molten metal being cast within formwork also therewith, to interrupt
The direction of growth of crystal grain in molten metal using the crystal grain refinement in molten metal, and enables the gas dissolved in molten metal to escape
Out, it avoids generating pin hole or gas hole defect in cast(ing) surface after metal liquid condensing, improves the Forming Quality of finished product cast
And machinery, the mechanical property of casting.
Detailed description of the invention
The attachment structure schematic diagram of formwork and shake table when Fig. 1 is present invention casting.
In figure: 1- shake table, 2- formwork.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figure 1, the present invention provides a kind of gravity-assist pouring investment casting methods, comprising the following steps:
Shake table 1 is provided, corresponding formwork 2 is prepared according to the shape of casting to be manufactured, then the formwork 2 is placed in shake table
On 1, corresponding raw metal is then equipped with according to the material of casting to be manufactured, then metal is made in the raw metal melting
Liquid opens shake table 1, vibrates formwork 2 with high-frequency vibrating table 1, while passing through full form casting process for the pouring metal melt
Within formwork 2, to obtain casting after metal liquid condensing.
Further, it is preferable to which 1 direction of vibration of shake table is to vibrate up and down along vertical direction.1 vibration frequency of shake table is not
Lower than 2000Hz.1 vibration duration of shake table is at least 15min~35min.
In addition, gravity-assist pouring investment casting method further includes keeping during molten metal is made in raw metal melting
Stirring, and clear up dross therein.It is preferred that the material of raw metal is aluminium alloy.The trade mark of aluminium alloy is ZL116.Using this hair
Bright technical solution, by making grain refiner uniform mixing within alloying metal liquid, to further make alloying metal liquid
In crystal grain refinement, ensure that the quality and mechanical properties of finished product cast.
In addition, gravity-assist pouring investment casting method further includes making metal after molten metal is made in raw metal melting
Liquid temperature remains 740 DEG C~760 DEG C, then by pouring metal melt within formwork 2, obtains casting.By being carried out to molten metal
Corresponding isothermal holding is poured according still further to hot shell pouring type, enhances the mobility of aluminium Ti, B grain graining agent, can
It further sufficiently mixes within alloying metal liquid, to make the crystal grain refinement in alloying metal liquid, ensure that finished product cast
Quality and mechanical properties.
Using technical solution of the present invention, by the casting process of model casting, by shake table make formwork with
Shake table vibration, vibrates the molten metal being cast within formwork also therewith, to interrupt the growth side of crystal grain in molten metal
To, using the crystal grain refinement in molten metal, and the gas dissolved in molten metal is enable to escape, avoid when metal liquid condensing it
Pin hole or gas hole defect are generated in cast(ing) surface afterwards, improves the Forming Quality of finished product cast and the machinery of casting, mechanical property
Energy.
Claims (8)
1. a kind of gravity-assist pouring investment casting method, it is characterised in that: the following steps are included:
It provides shake table (1), prepare corresponding formwork (2) according to the shape of casting to be manufactured, then described in the formwork (2) is placed in
On shake table (1), corresponding raw metal is then equipped with according to the material of casting to be manufactured, then by the raw metal melting system
Molten metal is obtained, is opened shake table (1), vibrates the formwork (2) with high-frequency vibrating table (1), while passing through model casting work
The pouring metal melt within the formwork (2), is obtained casting to metal liquid condensing by skill later.
2. gravity-assist pouring investment casting method according to claim 1, it is characterised in that: shake table (1) the vibration side
To being to vibrate up and down along vertical direction.
3. gravity-assist pouring investment casting method according to claim 1, it is characterised in that: shake table (1) the vibration frequency
Rate is not less than 2000Hz.
4. gravity-assist pouring investment casting method according to claim 1, it is characterised in that: shake table (1) vibration is held
The continuous time is at least 15min~35min.
5. gravity-assist pouring investment casting method according to claim 1, it is characterised in that: the gravity-assist pouring model casting
Method further includes being kept stirring during molten metal is made in the raw metal melting, and clear up dross therein.
6. gravity-assist pouring investment casting method according to claim 1, it is characterised in that: the material of the raw metal is
Aluminium alloy.
7. gravity-assist pouring investment casting method according to claim 6, it is characterised in that: the trade mark of the aluminium alloy is
ZL116。
8. gravity-assist pouring investment casting method according to claim 1, it is characterised in that: the gravity-assist pouring model casting
Method further includes so that the molten metal temperature is remained 740 DEG C~760 DEG C after molten metal is made in raw metal melting,
Again by the pouring metal melt within the formwork (2), casting is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790782.6A CN110449551A (en) | 2019-08-26 | 2019-08-26 | A kind of gravity-assist pouring investment casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790782.6A CN110449551A (en) | 2019-08-26 | 2019-08-26 | A kind of gravity-assist pouring investment casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110449551A true CN110449551A (en) | 2019-11-15 |
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ID=68489117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910790782.6A Pending CN110449551A (en) | 2019-08-26 | 2019-08-26 | A kind of gravity-assist pouring investment casting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855134A (en) * | 2022-07-07 | 2022-08-05 | 中天捷晟(天津)新材料科技有限公司 | Preparation method and casting mechanism of rare earth metal target blank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231017A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | High-temperature alloy complex thin-wall casting precise casting device |
| CN103537649A (en) * | 2012-10-29 | 2014-01-29 | 洛阳希诺能源科技有限公司 | Composite casting technology of excavator bucket teeth |
| CN105478671A (en) * | 2015-12-18 | 2016-04-13 | 贵州安吉航空精密铸造有限责任公司 | Microseismic casting process for aluminum alloy precision-investment casting |
| CN105598372A (en) * | 2016-03-18 | 2016-05-25 | 南昌航空大学 | Aluminum alloy investment casting method and investment casting device adopting near liquidus pouring |
| CN109396349A (en) * | 2018-12-31 | 2019-03-01 | 泰州华丰精密铸造有限公司 | A kind of investment precision casting technology of small thin-wall |
-
2019
- 2019-08-26 CN CN201910790782.6A patent/CN110449551A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537649A (en) * | 2012-10-29 | 2014-01-29 | 洛阳希诺能源科技有限公司 | Composite casting technology of excavator bucket teeth |
| CN103231017A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | High-temperature alloy complex thin-wall casting precise casting device |
| CN105478671A (en) * | 2015-12-18 | 2016-04-13 | 贵州安吉航空精密铸造有限责任公司 | Microseismic casting process for aluminum alloy precision-investment casting |
| CN105598372A (en) * | 2016-03-18 | 2016-05-25 | 南昌航空大学 | Aluminum alloy investment casting method and investment casting device adopting near liquidus pouring |
| CN109396349A (en) * | 2018-12-31 | 2019-03-01 | 泰州华丰精密铸造有限公司 | A kind of investment precision casting technology of small thin-wall |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855134A (en) * | 2022-07-07 | 2022-08-05 | 中天捷晟(天津)新材料科技有限公司 | Preparation method and casting mechanism of rare earth metal target blank |
| CN114855134B (en) * | 2022-07-07 | 2022-09-16 | 中天捷晟(天津)新材料科技有限公司 | Preparation method and casting mechanism of rare earth metal target blank |
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| PB01 | Publication | ||
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Application publication date: 20191115 |