CN203600382U - Mold structure for improving density uniformity of ceramic ball - Google Patents
Mold structure for improving density uniformity of ceramic ball Download PDFInfo
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- CN203600382U CN203600382U CN201320642037.5U CN201320642037U CN203600382U CN 203600382 U CN203600382 U CN 203600382U CN 201320642037 U CN201320642037 U CN 201320642037U CN 203600382 U CN203600382 U CN 203600382U
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- ceramic balls
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Abstract
The utility model relates to the technical field of ceramic products, in particular to a mold structure for improving the density uniformity of a ceramic ball. The mold structure comprises a spherical mold. The spherical mold is divided into a hollow upper portion, a hollow middle portion and a hollow lower portion. The upper portion, the middle portion and the lower portion are sequentially spliced to form the spherical mold. The upper portion and the lower portion are of the same structure and are hemispherical. The middle portion is in a circular ring shape. The inner diameter of the middle portion is larger than that of the upper portion. The upper portion, the middle portion and the lower portion are sequentially spliced to form the spherical mold with the middle portion protruding. According to the technical scheme, the ceramic ball manufactured through the spherical mold in a pressed mode is free of inward sinking, high in compactness and long in service life.
Description
Technical field
The utility model relates to ceramic technical field, relates in particular to a kind of mould structure.
Background technology
Because Ceramic Balls has density, mechanical strength is high, anti-wear performance waits well remarkable advantage, therefore be widely used in the carriage such as bearing, ball nut or control in the fluid spool of high-pressure fluid as wear-resistant parts, realizing long-term stable operation, reducing the function of maintenance cost.
The multiple raw materials of the general employing of existing Ceramic Balls, carry out after mixing and ball milling, add the techniques such as sintering adjuvant is suppressed, sintering, obtain spheres of ceramic.In the two-way pressing process of Ceramic Balls, existing process using ball-shape mould, causes the middle part density of Ceramic Balls low, two ends density is high, centre is easily recessed, cause that compactness is poor, Ceramic Balls in use, easily cannot work because of depression, restricted production efficiency and service life.
Utility model content
The purpose of this utility model is, provides a kind of mould structure that improves Ceramic Balls density uniformity, to solve the problems of the technologies described above.
The technical problem that the utility model solves can realize by the following technical solutions:
Improve the mould structure of Ceramic Balls density uniformity, comprise a spherical mould, described spherical mould is divided into the upper, middle and lower of hollow, described upper, middle and lower is spliced to form described spherical mould successively, it is characterized in that, described top is identical with described substructure, is all hemispherical; Described middle part is an annular; The internal diameter at described middle part is greater than the diameter on described top, and described top, middle part and described bottom are spliced to form described spherical mould outstanding in the middle of successively.
Outstanding spherical mould in the middle of the utility model adopts, after press ceramic ball, outstanding spheroid in the middle of the Ceramic Balls of having suppressed is also.In the time of follow-up grinding technics, ledge is ground, form spherical Ceramic Balls.Ceramic Balls, in pressing process, easily forms middle part density low, the situation that upper and lower density is high, and in sintering process, the part that intermediate density is low easily falls in, and the Ceramic Balls that sintering completes can form middle part indent phenomenon.Adopt after the utility model, during due to compacting, give prominence at middle part, in sintering process, and just in time recessed the outstanding low density part in middle part, indent phenomenon in the middle of the Ceramic Balls that sintering completes there will not be.In addition, the middle outstanding part of Ceramic Balls after sintering completes, can be in follow-up grinding technics, unifies to grind.Adopt after above-mentioned design, the overall compactness of Ceramic Balls, the quality of production are improved greatly.
The internal diameter at described middle part is than the large 0.6mm of the diameter on described top.
Described upper, middle and lower all adopts Hardmetal materials to make, and the wearability of grinding tool increases spherical uniformity and greatly improves.
Beneficial effect: owing to adopting technique scheme, adopt Ceramic Balls that spherical mould of the present utility model is pressed into without the phenomenon of caving in, and compactness is high, long service life.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the spliced structural representation of Fig. 1;
Fig. 3 is a kind of structural representation of traditional spheroidal mould;
Fig. 4 is the structural representation that adopts the Ceramic Balls 4 sintering into after the spherical mould of Fig. 3.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2, improve the mould structure of Ceramic Balls density uniformity, comprise a spherical mould, spherical mould is divided into top 1, middle part 2 and the bottom 3 of hollow, top 1, middle part 2 and bottom 3 are spliced to form spherical mould successively, and top 1 is identical with bottom 3 structures, is all hemispherical.Middle part 2 is annular, and the internal diameter at middle part 2 is greater than the diameter on top 1, and top 1, middle part 2 and bottom 3 are spliced to form spherical mould outstanding in the middle of successively.Outstanding spherical mould in the middle of the utility model adopts, after press ceramic ball, outstanding spheroid in the middle of the Ceramic Balls of having suppressed is also.In the time of follow-up grinding technics, ledge is ground, form spherical Ceramic Balls.
Ceramic Balls, in pressing process, easily forms middle part 2 density low, top 1 and the high situation of bottom 3 density.With reference to Fig. 3, be traditional spherical mould, its upper, middle and lower is spherical mould trisection structure, and upper and lower is symmetrical arranged, and the internal diameter at middle part is identical with the diameter of a circle at upper cross section place.In sintering process, the part that intermediate density is low easily falls in, and the Ceramic Balls 4 that sintering completes as shown in Figure 4, can form middle part 2 indent phenomenons.And after employing the utility model, with reference to Fig. 1, during due to compacting, give prominence at middle part 2, in sintering process, just in time recessed low density part outstanding middle part 2, indent phenomenon in the middle of the Ceramic Balls that sintering completes there will not be.In addition, the middle outstanding part of Ceramic Balls after sintering completes, can be in follow-up grinding technics, unifies to grind.Adopt after above-mentioned design, the overall compactness of Ceramic Balls, the quality of production are improved greatly.
The internal diameter at middle part 2 is than the large 0.6mm of the diameter on top 1.Top 1, middle part 2 and bottom 3 all adopt Hardmetal materials to make, and the wearability of grinding tool increases spherical uniformity and greatly improves.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. improve the mould structure of Ceramic Balls density uniformity, comprise a spherical mould, described spherical mould is divided into the upper, middle and lower of hollow, described upper, middle and lower is spliced to form described spherical mould successively, it is characterized in that, described top is identical with described substructure, all semicircular in shape; Described middle part is an annular; The internal diameter at described middle part is greater than the diameter on described top, and described top, middle part and described bottom are spliced to form described spherical mould outstanding in the middle of successively.
2. the mould structure of raising Ceramic Balls density uniformity according to claim 1, is characterized in that, the internal diameter at described middle part is than the large 0.6mm of the diameter on described top.
3. the mould structure of raising Ceramic Balls density uniformity according to claim 1 and 2, is characterized in that, described upper, middle and lower all adopts Hardmetal materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642037.5U CN203600382U (en) | 2013-10-17 | 2013-10-17 | Mold structure for improving density uniformity of ceramic ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642037.5U CN203600382U (en) | 2013-10-17 | 2013-10-17 | Mold structure for improving density uniformity of ceramic ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203600382U true CN203600382U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320642037.5U Expired - Fee Related CN203600382U (en) | 2013-10-17 | 2013-10-17 | Mold structure for improving density uniformity of ceramic ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203600382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466387A (en) * | 2018-04-02 | 2018-08-31 | 詹智胜 | Sphere molding die and technique |
| CN110076882A (en) * | 2019-04-30 | 2019-08-02 | 董海明 | A kind of isostatic cool pressing composable mold and production method producing small micro- Ceramic Balls green body |
-
2013
- 2013-10-17 CN CN201320642037.5U patent/CN203600382U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108466387A (en) * | 2018-04-02 | 2018-08-31 | 詹智胜 | Sphere molding die and technique |
| CN110076882A (en) * | 2019-04-30 | 2019-08-02 | 董海明 | A kind of isostatic cool pressing composable mold and production method producing small micro- Ceramic Balls green body |
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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: 20140521 Termination date: 20201017 |