CN110328739A - A kind of production method of ceramics turbo - Google Patents
A kind of production method of ceramics turbo Download PDFInfo
- Publication number
- CN110328739A CN110328739A CN201910760569.0A CN201910760569A CN110328739A CN 110328739 A CN110328739 A CN 110328739A CN 201910760569 A CN201910760569 A CN 201910760569A CN 110328739 A CN110328739 A CN 110328739A
- Authority
- CN
- China
- Prior art keywords
- ceramics
- turbo
- mold
- turbine
- green body
- 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
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0097—Press moulds; Press-mould and press-ram assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
Abstract
The invention discloses a kind of production methods of ceramics turbo.Belong to ceramic materials preparation technology field.Ceramics turbo disclosed by the invention is mainly used in air compressor machine turbocharger, small size gas turbine, small-sized aerospace engine and air-bearing system.Ceramics turbo has the advantages that light-weight, high temperature resistant, wear-resistant compared with metal material turbine.Ceramics turbo production method disclosed by the invention, suitable for the blank forming of a variety of ceramic material turbines, such as silicon nitride ceramics, metal composite ceramal, carbon fibre reinforced ceramics material etc..Making step includes: the preparation of formula powder body, powder granulation, mold design and isostatic pressing, high temperature sintering and processing.Since turbo blade is generally between 1 ~ 2mm, forming step is particularly critical.It is mostly obtained at present with briquet engraving and grouting mode, production efficiency is low, and yield rate is low.Turbine green body disclosed by the invention is once press-formed method, and ceramics turbo production efficiency and yield rate is made to be largely increased.
Description
Technical field
The invention discloses a kind of production methods of ceramics turbo, belong to ceramic materials preparation technology field.
Background technique
Ceramics turbo is a kind of critical component applied to high-precision end industry dynamical system.Such as hydrogen fuel cell air turbine
Compressor, the engine turbines propeller such as small-sized aerospace, guided missile torpedo, small size gas turbine turbine etc..However current institute
The material of use is mostly metal alloy compositions, and not only quality is big, but also high temperature resistance is also very limited.Only a few pottery
Porcelain material turbine is also production efficiency and yield rate by obtaining to bulk ceramic briquet through lathe engraving or injection forming mode
It is very low.A kind of production method of ceramics turbo disclosed by the invention substantially increases turbine while guaranteeing product quality
Production efficiency.
Summary of the invention
The production method that the present invention discloses a kind of ceramic material turbine, compared with traditional machine tool finishing impression method and slip casting method, tool
There is the features such as high production efficiency, high yield rate, quality is stablized.
Special cermacis routine production stage is as follows: formula powder body prepares --- powder granulation --- mold design and cold etc. quiet
Molded --- sintering --- processing.In the present invention, mold design and cold isostatic compaction step are particularly critical.
Die design method is as follows:
A) mold is made in the form of rubber components is inlayed with high tensile metal component and to be combined.B) circular die housing (1)
For compressible elastomeric rubber material, turbo blade mold core group (2) is made of high-strength metal material, and passes through swallow with rubber sleeve
Stern notch or T-slot (4) mode and rubber sleeve (1) are inlayed together, and are uniformly distributed in around mold cavity, this structure ensure that
Terminate in molding, in pressure leak process, blade metal mold core component (2), around rubber sleeve (1) it is uniform pulling under and green body
The uniformity for separating stress ensure that the consistency of each mold core component and green body separation process displacement, be molded into improve
Product rate.C) mold covers made of high-strength metal material up and down, and is sealed on mould inside surface has and leaf up and down
The guide groove structure (7) that piece mold core group fin structure (3) matches, to guarantee in the forming process that powder is compressed into green body
Accuracy of each blade in circumferencial direction distributing position.D) mold center pinch both ends and upper and lower end cap matching part are more rib knots
Structure (6), plays the positioning action to upper and lower end cap, ensure that during product compression moulding end cap will not occur for end cap up and down
It deflects and green body is caused to damage.
Detailed description of the invention
Fig. 1 is the top view of ceramics turbo mold of the present invention, and Fig. 2 is ceramics turbo mold section view of the present invention
Figure.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings:
As shown in Figure 1, 2, step 1: first inlaying die coat (1) by oat tail groove structure (4) assembling with mold core group (2)
Together；Step 2: mold stem (5) are inserted into lower cover centre bore；Step 3: the first step is assembled with second step
Component is fitted together by Fig. 2, guarantees that mold core group fin structure (3) correspondence is caught in lower cover groove (7), then by housing
(1) position clip clamping is linked with lower cover；Step 4: the porcelain powder being granulated is filled into moulding cavity simultaneously jolt ramming；The
Five steps: by upper end cover assembly in mold upper end, guarantee mold stem many ribs structure (6), mold core group fin structure (3) respectively corresponds
It is embedded in upper end cover corresponding position, and upper end cover and die coat (1) are linked into position clip clamping；Step 6: will install
Mold is put into cold isostatic press and is press-formed, to after pressure release EP (end of program), take out mold, unclamp clip, beat through pressure maintaining
Ceramics turbo green body is obtained after mold demoulding.Green body production method disclosed by the invention, when molding once only needs a few minutes
Between, substantially increase production efficiency.
Although the embodiments of the invention are described in conjunction with the attached drawings, but patent owner can be in appended claims
Various deformations or amendments are made in range, as long as being no more than protection scope described in claim of the invention, all in the present invention
Protection scope in.
Claims (6)
1. a kind of production method of ceramics turbo, belongs to technical field of new material preparation, ceramics turbo disclosed by the invention is mainly answered
For in air compressor machine turbocharger, small size gas turbine, small-sized aerospace engine and air-bearing system, feature to exist
In: unique mould structure design method a) is used, so that turbine green body is i.e. plastic through an inferior static pressure pressurization, improves production
Product production efficiency and qualification rate；B) blank forming of this forming method suitable for a variety of ceramic material turbines, such as silicon nitride ceramics,
Metal composite ceramal, carbon fibre reinforced ceramics material etc..
2. a kind of production method of ceramics turbo according to claim 1, it is characterised in that: use unique mould structure
Design method, this mold are made in the form of rubber components is inlayed with metal parts and to be combined.
3. mold according to claim 2, a combination thereof mode, are characterized in that: circular die housing (1) is compressible rubber material
Matter, turbo blade mold core group (2) are made of high-strength metal material, and pass through dovetail groove or T-slot (4) mode with rubber sleeve
It inlays together, and is uniformly distributed in mold with rubber sleeve, this structure ensure that be terminated in molding, in pressure leak process, leaf
Piece metal mold core assembly separates the consistency of stress under the uniform pulling of rubber sleeve with green body, to ensure that formative stage
Yield rate.
4. mold according to claim 2, capping is made of high-strength metal material up and down, and is sealed on mold up and down
With the guide groove structure (7) matched with blade mold core group fin guide rail (4) in interior surface, to guarantee to compress in powder
The accuracy being distributed at each blade in the forming process of green body in circumferencial direction.
5. mold according to claim 2, center pinch both ends and upper and lower end cap matching part are many ribs structure (6), protect
End cap is during mold assembles above and below demonstrate,proving, the corresponding accurate and stability in upper and lower end face.
6. mold core shape disclosed by the invention is not limited to Figure of description shape, can be done according to the practical structures demand to turbine
Various modifications are modified out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760569.0A CN110328739A (en) | 2019-08-16 | 2019-08-16 | A kind of production method of ceramics turbo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760569.0A CN110328739A (en) | 2019-08-16 | 2019-08-16 | A kind of production method of ceramics turbo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110328739A true CN110328739A (en) | 2019-10-15 |
Family
ID=68149770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910760569.0A Pending CN110328739A (en) | 2019-08-16 | 2019-08-16 | A kind of production method of ceramics turbo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110328739A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63282177A (en) * | 1987-05-13 | 1988-11-18 | Ngk Spark Plug Co Ltd | Production of ceramics rotating body |
| CN202490933U (en) * | 2012-03-07 | 2012-10-17 | 金堆城钼业股份有限公司 | Metal powder isostatic cool pressing forming mold |
| CN103360079A (en) * | 2013-07-10 | 2013-10-23 | 西安交通大学 | Method for customizing core and shell of integrated ceramic mold of hollow turbine blade |
| CN104030691A (en) * | 2013-09-09 | 2014-09-10 | 昆山申嘉特种陶瓷有限公司 | Method for preparing air pressure sintering structural member ceramic by taking silicon nitride as raw material |
| CN204544399U (en) * | 2015-04-03 | 2015-08-12 | 东莞市煜田新材料有限公司 | A kind of turbine structure |
| CN207711004U (en) * | 2017-09-21 | 2018-08-10 | 河北高富氮化硅材料有限公司 | A kind of isostatic pressing mold |
| CN108610056A (en) * | 2018-07-24 | 2018-10-02 | 广东工业大学 | A kind of silicon nitride ceramics and preparation method thereof |
| CN208619176U (en) * | 2018-08-02 | 2019-03-19 | 中国科学院工程热物理研究所 | A kind of molding radial-flow type hollow impeller structure of 3D printing |
-
2019
- 2019-08-16 CN CN201910760569.0A patent/CN110328739A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63282177A (en) * | 1987-05-13 | 1988-11-18 | Ngk Spark Plug Co Ltd | Production of ceramics rotating body |
| CN202490933U (en) * | 2012-03-07 | 2012-10-17 | 金堆城钼业股份有限公司 | Metal powder isostatic cool pressing forming mold |
| CN103360079A (en) * | 2013-07-10 | 2013-10-23 | 西安交通大学 | Method for customizing core and shell of integrated ceramic mold of hollow turbine blade |
| CN104030691A (en) * | 2013-09-09 | 2014-09-10 | 昆山申嘉特种陶瓷有限公司 | Method for preparing air pressure sintering structural member ceramic by taking silicon nitride as raw material |
| CN204544399U (en) * | 2015-04-03 | 2015-08-12 | 东莞市煜田新材料有限公司 | A kind of turbine structure |
| CN207711004U (en) * | 2017-09-21 | 2018-08-10 | 河北高富氮化硅材料有限公司 | A kind of isostatic pressing mold |
| CN108610056A (en) * | 2018-07-24 | 2018-10-02 | 广东工业大学 | A kind of silicon nitride ceramics and preparation method thereof |
| CN208619176U (en) * | 2018-08-02 | 2019-03-19 | 中国科学院工程热物理研究所 | A kind of molding radial-flow type hollow impeller structure of 3D printing |
Non-Patent Citations (3)
| Title |
|---|
| 尹邦跃: "《陶瓷核燃料工艺》", 31 January 2016, 哈尔滨工业大学出版社 * |
| 韩凤麟: "《粉末冶金设备实用手册》", 30 June 1997, 冶金工业出版社 * |
| 韩莹 等: "基于CAD和Solidworks的柴油机增压器Si3N4陶瓷涡轮模具设计", 《中国材料科技与设备（双月刊）》 * |
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