CN106623785A - Casting structure for silica sol investment casting - Google Patents
Casting structure for silica sol investment casting Download PDFInfo
- Publication number
- CN106623785A CN106623785A CN201611175954.1A CN201611175954A CN106623785A CN 106623785 A CN106623785 A CN 106623785A CN 201611175954 A CN201611175954 A CN 201611175954A CN 106623785 A CN106623785 A CN 106623785A
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- CN
- China
- Prior art keywords
- wax
- block
- casting
- quench
- chilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
A casting structure for a silica sol investment casting comprises a mold shell (1), a chilling wax block (2), a wax mold (3) and a chilling block. The chilling wax block (2) is bonded to the outer side face of the wax mold (3). The chilling wax block (2) and the wax mold (3) are coated with the mold shell (1), and the outer end face of the chilling wax block (2) is exposed. The top of the wax mold (3) is provided with a dead head (4). The chilling block and the chilling wax block (2) are consistent in shape. The cross section of the chilling block is in a T shape. The chilling block is clamped in a cavity formed by roasting the chilling wax block (2). Through the provided casting structure for the silica sol investment casting, the problems that shrinkage porosity and shrinkage cavity defects are liable to occur to the thick and large part of the precise silica sol investment casting are mainly solved, the chilling block is matched with the dead head, casting defects are eliminated, the casting inner quality is improved, and thus the casting yield is increased.
Description
Technical field
The invention belongs to Casting Technology field, and in particular to a kind of cast structure of Ludox investment-casting.
Background technology
Model casting typically refers to make apperance in fusible material, if making type in apperance Surface coating dried layer refractory material
Shell, then shell is discharged into apperance fusing, it is pourable casting side Jing after high-temperature roasting so as to obtain the casting mold without die joint
Case.Manufactured due to the widely used wax material of apperance, therefore be often referred to as model casting " lost-wax casting ".The shape of investment-casting
General all more complicated, up to 0.5mm, the minimum wall thickness (MINI W.) of foundry goods is 0.3mm to the castable minimum diameter for portalling on foundry goods.In production
In can by some originally by the part of several part combinations, by the structure for changing part, be designed to one-piece parts and
Directly cast out by model casting, to save the consumption of machining period and metal material, make design of part more reasonable.Model casting
Technical process is more complicated, and wayward, and the material for using and consuming is more expensive, therefore it is applied to the complex-shaped, precision of production and wants
Ask high or be difficult to carry out the miniature parts of other processing, the such as blade of turbogenerator.It is larger especially for Wall-Thickness Difference
Part process is increasingly complex, and thin-walled position needs higher temperature just to fill type completely, and heavy wall position needs lower temperature simultaneously fast
Quickly cooling but just can guarantee that and casting flaw occurred without inside heavy wall, and it is not to owe to cast to be that the contradiction often leads to cast out the blank for coming
Internal defect, shrinkage cavity.Because silicasol case will be passed through more than roasting under 1000 Celsius temperatures, causing cannot bonding Quench on wax part
Block.
In view of this, the present inventor devises a kind of cast structure of Ludox investment-casting.
The content of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, there is provided a kind of Ludox fusible pattern casting
The cast structure of part, promotes the thick big position of foundry goods quickly to cool down, and coordinates the feeding of rising head to act on, it is to avoid the thick big position of foundry goods goes out
Existing casting flaw.
It is to employ the following technical solutions to realize that the present invention solves its technical problem.It is molten according to a kind of silicon proposed by the present invention
The cast structure of glue investment-casting, including formwork 1, Quench wax stone 2, wax-pattern 3 and Quench block, the Quench wax stone 2 is bonded in wax-pattern 3
Lateral surface；The Quench wax stone 2, wax-pattern 2 are wrapped up by formwork 1 and the outer face of Quench wax stone 2 is exposed, and the top of wax-pattern 3 is arranged
There is rising head 4；The Quench block is consistent with the shape of Quench wax stone 2, and its cross section is T-shaped, is placed in the Quench wax stone 2 fired
In the cavity for being formed afterwards.
The present invention is solved its technical problem and is also further realized using following technical measures.
The cast structure of aforementioned Ludox investment-casting, the Quench block is in aluminium block, copper billet, graphite block, iron block
Kind.
The cast structure of aforementioned Ludox investment-casting, the Quench wax stone 2 is bonded in the outside at the thick big position of wax-pattern 3
Face, wax-pattern 3 is provided with rising head 4. at the top of thick big position
It is thick big that the cast structure of Ludox investment-casting proposed by the present invention mainly solves Ludox precision-investment casting part
Easily there is shrinkage porosite, shrinkage cavity defect problem in position, and Quench block coordinates rising head to eliminate casting flaw, improves Internal Quality of Cast, so as to
Improve casting yield.
Described above is only the general introduction of technical solution of the present invention, in order to be able to better understand the technological means of the present invention, and
Can be practiced according to the content of specification, and be allow the present invention above and other objects, features and advantages can be brighter
It is aobvious understandable, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Description of the drawings
Fig. 1 is the schematic diagram of the cast structure of Ludox investment-casting of the present invention.
1：Formwork
2：Quench wax stone
3：Wax-pattern
4：Rising head
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to the cast structure of Ludox investment-casting proposed by the present invention its specific embodiment, knot
Structure, feature and its effect, describe in detail as after.
Refer to Fig. 1, the cast structure of Ludox investment-casting proposed by the present invention, including formwork 1, Quench wax stone 2, wax
Mould 3 and Quench block, the Quench wax stone 2 is bonded in the lateral surface of wax-pattern 3；The Quench wax stone 2, wax-pattern 2 are wrapped up and swashed by formwork 1
The outer face of cold wax stone 2 is exposed, and the top of wax-pattern 3 is provided with rising head 4；The Quench block be positioned over the Quench wax stone 2 it is fired after
In the cavity of formation, the Quench block is consistent with the shape of Quench wax stone 2, and its cross section is T-shaped.
Further, the formwork 1 is prepared from by Ludox bonding agent, the special sand of casting, casting tailored flour.
Further, the Quench block is the one kind in aluminium block, copper billet, graphite block, iron block, but the invention is not restricted to this.
Further, the Quench wax stone 2 is bonded in the lateral surface at the thick big position of wax-pattern 3, and the thick big position top of wax-pattern 3 sets
It is equipped with rising head 4. specifically, the thick big position of wax-pattern 3 refers to that the position is more than 10 with the wall ratio of intermediate location.
Further, when placing Quench block in the cavity formed after the Quench wax stone 2 is fired, the reserved 0.2- in one side
The gap of 0.5mm, and it is spacing by step.
The use flow process of Ludox investment-casting proposed by the present invention is as follows：
When wax part welds pouring technology in one piece of the lateral surface bonding and Quench block-shaped including the thick big position of wax-pattern
The Quench wax stone 2 of sample, the formwork 1 during process for making shell on the outer face of Quench wax stone 2 will be wiped off, it is ensured that outer face is exposed
In air, cast structure proposed by the present invention is formed.After the roasting that dewaxes, Quench wax stone 2 dissolves to be formed the shell for making
One cavity connected with the external world, is positioned over the Quench block of preheated same shape in the cavity before cast aluminium alloy, by
T-shaped in the cross section of Quench wax stone 2, the depth that is put into of Quench block can be spacing by step.And to prevent Quench block from exiting, can
Casting joint sealing mud cream is spread in cylindrical the painting with formwork intersection of Quench block step.
The aluminium alloy and Quench block directly contact at the thick big position of foundry goods after cast, quickly absorbing heat by Quench block makes thickness
, easily there is shrinkage cavity, rarefaction defect so as to solve the thick big position of foundry goods in big position rapid solidification.
The above, is only presently preferred embodiments of the present invention, any those skilled in the art, without departing from
In the range of technical solution of the present invention, according to the technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent
Change and modification, still fall within the range of technical solution of the present invention.
Claims (3)
1. a kind of cast structure of Ludox investment-casting, it is characterised in that：Including formwork (1), Quench wax stone (2), wax-pattern (3)
And Quench block, the Quench wax stone (2) is bonded in the lateral surface of wax-pattern (3)；The Quench wax stone (2), wax-pattern (2) are by formwork (1)
The outer face of parcel and Quench wax stone (2) is exposed, and wax-pattern (3) top is provided with rising head (4)；The Quench block and Quench wax stone (2)
Shape it is consistent, its cross section is T-shaped, be placed in the Quench wax stone (2) it is fired after in the cavity that formed.
2. the cast structure of Ludox investment-casting according to claim 1, it is characterised in that：The Quench block is aluminium
One kind in block, copper billet, graphite block, iron block.
3. the cast structure of Ludox investment-casting according to claim 1, it is characterised in that：The Quench wax stone (2)
The lateral surface at the thick big position of wax-pattern (3) is bonded in, the thick big position top of wax-pattern (3) is provided with rising head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175954.1A CN106623785A (en) | 2016-12-19 | 2016-12-19 | Casting structure for silica sol investment casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175954.1A CN106623785A (en) | 2016-12-19 | 2016-12-19 | Casting structure for silica sol investment casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106623785A true CN106623785A (en) | 2017-05-10 |
Family
ID=58823317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611175954.1A Pending CN106623785A (en) | 2016-12-19 | 2016-12-19 | Casting structure for silica sol investment casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106623785A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941455A (en) * | 2018-07-27 | 2018-12-07 | 沈阳中科三耐新材料股份有限公司 | A kind of casting method of gas turbine duplex turborotor |
| CN109465393A (en) * | 2018-11-05 | 2019-03-15 | 西安飞机工业（集团）有限责任公司 | A kind of quenching method at the thick big position of investment-casting |
| CN113996754A (en) * | 2021-10-22 | 2022-02-01 | 共享装备股份有限公司 | Casting sand mold and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52123322A (en) * | 1976-04-09 | 1977-10-17 | Kubota Ltd | Chiller setting process of precision casting |
| KR20040038333A (en) * | 2002-10-31 | 2004-05-08 | 한국과학기술원 | Lost Foam Riser |
| CN102476167A (en) * | 2010-11-27 | 2012-05-30 | 大连远景铸造有限公司 | Greensand molding die for heavy hydraulic castings |
| CN103192027A (en) * | 2013-03-28 | 2013-07-10 | 清华大学 | Partial cooling method of cold iron in investment casting |
| CN103658535A (en) * | 2014-01-06 | 2014-03-26 | 山东建筑大学 | Investment casting process of large copper impeller |
| CN104368756A (en) * | 2014-11-07 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for complex-structure, thick and large castings of aero-engine by use of investment casting for contoured densener |
| CN206405382U (en) * | 2016-12-19 | 2017-08-15 | 洛阳金峰机电装备有限公司 | The cast structure of Ludox investment-casting |
-
2016
- 2016-12-19 CN CN201611175954.1A patent/CN106623785A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52123322A (en) * | 1976-04-09 | 1977-10-17 | Kubota Ltd | Chiller setting process of precision casting |
| KR20040038333A (en) * | 2002-10-31 | 2004-05-08 | 한국과학기술원 | Lost Foam Riser |
| CN102476167A (en) * | 2010-11-27 | 2012-05-30 | 大连远景铸造有限公司 | Greensand molding die for heavy hydraulic castings |
| CN103192027A (en) * | 2013-03-28 | 2013-07-10 | 清华大学 | Partial cooling method of cold iron in investment casting |
| CN103658535A (en) * | 2014-01-06 | 2014-03-26 | 山东建筑大学 | Investment casting process of large copper impeller |
| CN104368756A (en) * | 2014-11-07 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for complex-structure, thick and large castings of aero-engine by use of investment casting for contoured densener |
| CN206405382U (en) * | 2016-12-19 | 2017-08-15 | 洛阳金峰机电装备有限公司 | The cast structure of Ludox investment-casting |
Non-Patent Citations (1)
| Title |
|---|
| 李新亚: "《铸造手册第5卷铸造工艺》", 30 September 2011 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941455A (en) * | 2018-07-27 | 2018-12-07 | 沈阳中科三耐新材料股份有限公司 | A kind of casting method of gas turbine duplex turborotor |
| CN109465393A (en) * | 2018-11-05 | 2019-03-15 | 西安飞机工业（集团）有限责任公司 | A kind of quenching method at the thick big position of investment-casting |
| CN113996754A (en) * | 2021-10-22 | 2022-02-01 | 共享装备股份有限公司 | Casting sand mold and application thereof |
| CN113996754B (en) * | 2021-10-22 | 2023-07-28 | 共享装备股份有限公司 | Sand mould for casting and application thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |