CN106182398A - A kind of moulding process of ceramic plunger - Google Patents
A kind of moulding process of ceramic plunger Download PDFInfo
- Publication number
- CN106182398A CN106182398A CN201610535487.2A CN201610535487A CN106182398A CN 106182398 A CN106182398 A CN 106182398A CN 201610535487 A CN201610535487 A CN 201610535487A CN 106182398 A CN106182398 A CN 106182398A
- Authority
- CN
- China
- Prior art keywords
- mould
- ceramic
- powder
- ceramic plunger
- moulding process
- 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
Links
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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/14—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means vibrating, e.g. the surface of the material
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/36—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means applying fluid pressure or vacuum to the material
- B28B21/40—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means applying fluid pressure or vacuum to the material by evacuating one or more of the mould parts ; Vacuum machines
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses the moulding process of a kind of ceramic plunger, it is characterised in that comprise the steps: that (1) uses the material not producing pressure loss to make the mould of tubulose, and determine the dimensions of mould according to the dimensions of ceramic plunger to be made；(2) after ceramic powder being inserted made mould, ram-jolt powder makes powder be evenly distributed, and ceramic powder forms ceramic powder, then carries out evacuation by vaccum-pumping equipment, and seals；(3) one piece of weight of the lower suspension of mould after sealing, puts into mould together with weight in the cylinder body of cold isostatic compaction equipment；(4) use cold isostatic compaction equipment that the ceramic powder in mould is carried out uniform pressurization, it is thus achieved that fine and close ceramic plunger base substrate, and the powder particles of the central part of ceramic plunger base substrate is broken completely.Gas remaining in mould can be discharged in forming process by the present invention by vaccum-pumping equipment, it is possible to ensures that mould keeps plumbness in liquid medium.
Description
Technical field
The present invention relates to the moulding process of a kind of plunger, particularly to the moulding process of a kind of ceramic plunger.
Background technology
Ceramic plunger is a kind of cylindrical ceramic part, in its preparation process, generally uses cold isostatic compaction technique.Existing
Cold isostatic compaction technique in rubber mold used can lose partial pressure in forming process, cause pressure conduction to post
Can significantly reduce during plug centre, thus the powder in centre can not be crushed, and for the less parts of quality, molding
During, present in mould, air likely produces buoyancy thus causes mould thoroughly to immerse in liquid medium, concurrently
Raw inclination.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide the moulding process of a kind of ceramic plunger, solve
Problem that the powder in plunger base substrate centre cannot crush and the problem that the mould of molding easily tilts.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:
The moulding process of a kind of ceramic plunger, comprises the steps:
(1) material not producing pressure loss is used to make the mould of tubulose, and according to the size of ceramic plunger to be made
Specification determines the dimensions of mould；
(2), after ceramic powder is inserted mould made in step (1), ram-jolt powder makes powder be evenly distributed, and ceramics
Material forms ceramic powder, then carries out evacuation by vaccum-pumping equipment, and the gas existed in mould is discharged and sealed；
(3) one piece of weight of the lower suspension of mould after sealing, puts into cold isostatic compaction equipment together with weight by mould
Cylinder body in；
(4) use cold isostatic compaction equipment that the ceramic powder in mould is carried out uniform pressurization, it is thus achieved that fine and close ceramic plunger
Base substrate, and the powder particles of the central part of ceramic plunger base substrate is broken completely.
Further, the material being used for making mould in step (1) is plastic sheeting.
Further, in step (2), vacuum ＜ 1% of evacuation.
Further, the weight in step (3) makes to be completely immersed in the liquid of isostatic cool pressing equipment equipped with the mould of ceramic powder
In body, and mould is made to keep vertical in liquid medium.
The invention has the beneficial effects as follows: the present invention could be used without the material of pressure loss and makes mould, and the mould of making is not
There will be the phenomenon that tradition rubber mold absorbs the pressure of liquid medium conduction；After ceramic powder is inserted mould, residual in mould
Remaining gas is discharged by vaccum-pumping equipment, is possible to prevent mould to produce bigger buoyancy after putting into cold isostatic compaction equipment.
After die sealing, mould can be made to be completely immersed in liquid medium by weight, and make mould keep vertical in liquid medium
State, prevents mold tilt.
Detailed description of the invention
Below presently preferred embodiments of the present invention is described in detail so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that thus protection scope of the present invention is made apparent clear and definite defining.
The moulding process of a kind of ceramic plunger, comprises the steps:
(1) material not producing pressure loss is used to make the mould of tubulose, and according to the size of ceramic plunger to be made
Specification determines the dimensions of mould；
(2), after ceramic powder is inserted mould made in step (1), ram-jolt powder makes powder be evenly distributed, and ceramics
Material forms ceramic powder, then carries out evacuation by vaccum-pumping equipment, and the gas existed in mould is discharged and sealed；
(3) one piece of weight of the lower suspension of mould after sealing, puts into cold isostatic compaction equipment together with weight by mould
Cylinder body in；Weight makes to be completely immersed in equipped with the mould of ceramic powder in the liquid of isostatic cool pressing equipment, and makes mould at liquid
Medium keep vertical, it is to avoid equipped with the mould run-off the straight in a liquid of ceramic powder；
(4) use cold isostatic compaction equipment that the ceramic powder in mould is carried out uniform pressurization, it is thus achieved that fine and close ceramic plunger
Base substrate, and the powder particles of the central part of ceramic plunger base substrate is broken completely.
In the present embodiment, the material being used for making mould in step (1) is plastic sheeting, and plastic sheeting is fine and close, compacting
During do not seep water.In step (2), vacuum ＜ 1% of evacuation.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technical fields, all
In like manner it is included in the scope of patent protection of the present invention.
Claims (4)
1. the moulding process of a ceramic plunger, it is characterised in that comprise the steps:
(1) material not producing pressure loss is used to make the mould of tubulose, and according to the size of ceramic plunger to be made
Specification determines the dimensions of mould；
(2), after ceramic powder is inserted mould made in step (1), ram-jolt powder makes powder be evenly distributed, and ceramics
Material forms ceramic powder, then carries out evacuation by vaccum-pumping equipment, and the gas existed in mould is discharged and sealed；
(3) one piece of weight of the lower suspension of mould after sealing, puts into cold isostatic compaction equipment together with weight by mould
Cylinder body in；
(4) use cold isostatic compaction equipment that the ceramic powder in mould is carried out uniform pressurization, it is thus achieved that fine and close ceramic plunger
Base substrate, and the powder particles of the central part of ceramic plunger base substrate is broken completely.
The moulding process of ceramic plunger the most according to claim 1, it is characterised in that: step is used for making mould in (1)
Material be plastic sheeting.
The moulding process of ceramic plunger the most according to claim 1, it is characterised in that: in step (2), the vacuum of evacuation
Degree ＜ 1%.
The moulding process of ceramic plunger the most according to claim 1, it is characterised in that: the weight in step (3) make equipped with
The mould of ceramic powder is completely immersed in the liquid of isostatic cool pressing equipment, and makes mould keep vertical in liquid medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610535487.2A CN106182398A (en) | 2016-07-08 | 2016-07-08 | A kind of moulding process of ceramic plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610535487.2A CN106182398A (en) | 2016-07-08 | 2016-07-08 | A kind of moulding process of ceramic plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106182398A true CN106182398A (en) | 2016-12-07 |
Family
ID=57473792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610535487.2A Pending CN106182398A (en) | 2016-07-08 | 2016-07-08 | A kind of moulding process of ceramic plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106182398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372573A (en) * | 2018-03-20 | 2018-08-07 | 中国科学院上海硅酸盐研究所 | The cold isostatic compaction mould and forming method of ceramic tube |
| CN113171210A (en) * | 2021-04-20 | 2021-07-27 | 江苏泰州麦迪医疗科技有限公司 | Manufacturing method and forming tool for ceramic sliding groove prosthesis |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450871A (en) * | 2007-12-07 | 2009-06-10 | 中国科学院金属研究所 | Carbon graphite thermal isostatic pressing silver leaching process |
| CN102060530A (en) * | 2010-11-16 | 2011-05-18 | 上海材料研究所 | Preparation method of compact zirconia ceramic plunger |
| CN103102161A (en) * | 2013-01-31 | 2013-05-15 | 苏州晶瓷超硬材料有限公司 | Ceramic plunger moulding process |
| JP2013146748A (en) * | 2012-01-18 | 2013-08-01 | Toray Ind Inc | Method for producing compact by using cold isostatic pressing |
| CN103435357A (en) * | 2013-08-15 | 2013-12-11 | 中国科学院新疆理化技术研究所 | Preparation method for support-free micronscale ultrathin ceramic chip |
| WO2014003587A1 (en) * | 2012-06-27 | 2014-01-03 | Industry Technologies S.A. | A method for manufacturing of ceramic electro-insulating pipes |
| CN103753844A (en) * | 2013-12-21 | 2014-04-30 | 湖北鄂信钻石材料有限责任公司 | Vacuum pressing method for superfine carbon green body |
| JP2016087800A (en) * | 2014-10-29 | 2016-05-23 | 住友金属鉱山株式会社 | Cylindrical molding die and method for manufacturing cylindrical ceramic molding using the same |
-
2016
- 2016-07-08 CN CN201610535487.2A patent/CN106182398A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450871A (en) * | 2007-12-07 | 2009-06-10 | 中国科学院金属研究所 | Carbon graphite thermal isostatic pressing silver leaching process |
| CN102060530A (en) * | 2010-11-16 | 2011-05-18 | 上海材料研究所 | Preparation method of compact zirconia ceramic plunger |
| JP2013146748A (en) * | 2012-01-18 | 2013-08-01 | Toray Ind Inc | Method for producing compact by using cold isostatic pressing |
| WO2014003587A1 (en) * | 2012-06-27 | 2014-01-03 | Industry Technologies S.A. | A method for manufacturing of ceramic electro-insulating pipes |
| CN103102161A (en) * | 2013-01-31 | 2013-05-15 | 苏州晶瓷超硬材料有限公司 | Ceramic plunger moulding process |
| CN103435357A (en) * | 2013-08-15 | 2013-12-11 | 中国科学院新疆理化技术研究所 | Preparation method for support-free micronscale ultrathin ceramic chip |
| CN103753844A (en) * | 2013-12-21 | 2014-04-30 | 湖北鄂信钻石材料有限责任公司 | Vacuum pressing method for superfine carbon green body |
| JP2016087800A (en) * | 2014-10-29 | 2016-05-23 | 住友金属鉱山株式会社 | Cylindrical molding die and method for manufacturing cylindrical ceramic molding using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372573A (en) * | 2018-03-20 | 2018-08-07 | 中国科学院上海硅酸盐研究所 | The cold isostatic compaction mould and forming method of ceramic tube |
| CN113171210A (en) * | 2021-04-20 | 2021-07-27 | 江苏泰州麦迪医疗科技有限公司 | Manufacturing method and forming tool for ceramic sliding groove prosthesis |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Xianbing Inventor after: Liu Du Inventor before: Liu Du Inventor before: Liu Xianbing |
|
| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |