CN215038536U

CN215038536U - Isostatic pressing mould for preparing high-performance ceramic crucible

Info

Publication number: CN215038536U
Application number: CN202023253724.7U
Authority: CN
Inventors: 刘名剑; 王征
Original assignee: Wuxi Tecceram Fine Ceramic Co ltd
Current assignee: Wuxi Tecceram Fine Ceramic Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-12-07
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an isostatic pressing mould for preparing a high-performance ceramic crucible, which comprises an outer sleeve mould and a powder cavity, wherein the bottom of the outer sleeve mould is provided with a first plug head, the upper end of the first plug head is provided with a mould plug close to the inner wall of the outer sleeve mould, and the inner side of the mould plug is provided with a positioning groove; according to the isostatic pressing die for preparing the high-performance ceramic crucible, the first plug head, the die plug, the positioning groove and the inner die core are arranged, and under the arrangement of the integrated structure of the first plug head and the die plug, on one hand, the crucible product can be quickly taken out in a demoulding way, on the other hand, the calibers of different positioning grooves can be conveniently replaced, so that the crucible product with the outer sleeve die being lower than the inner diameter of the outer sleeve die can be processed in a matching way, and further the processing practicability of the outer sleeve die is higher; through setting up second chock plug and metal block, can avoid traditional chock plug of cover mould to make by rubber entirely, produce great tensile stress and cause the crucible idiosome bottom of production to take place to pull when the pressure release, can let the production quality of its crucible guarantee.

Description

Isostatic pressing mould for preparing high-performance ceramic crucible

Technical Field

The utility model relates to a ceramic material forming technology field specifically is a preparation high performance ceramic crucible's isostatic pressing mould.

Background

With the explosive growth of the photovoltaic market, the demand of the crucible is increased day by day, and the preparation requirement of the crucible is higher and higher. The high-performance special ceramic crucible can be used in high-melting-point metal smelting industries such as precious metals and the like, materials comprise high-purity alumina, magnesia stabilized zirconia and the like, the traditional crucible forming process is formed by grouting, the process can only prepare 95% alumina or 99% alumina crucibles, the high-purity alumina crucibles and the high-purity zirconia crucibles cannot be formed, the prepared crucibles are low in density and easy to layer, and the crucibles with high quality requirements all adopt an isostatic pressing forming process.

The prior art has the following defects or problems:

1. in the prior art, the isostatic pressing mold is difficult to demold in the processing process of a ceramic crucible product part, and the mold can only extend products of the same type in the processing process, so that the practicability is not high;

2. in addition, the traditional isostatic pressing die is sealed by using rubber as a rubber head, and great tensile stress can be caused after isostatic pressing pressure relief, so that the bottom of the crucible is pulled to crack, even the bottom of the crucible directly falls off, and great influence is brought to the production quality of the crucible.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an isostatic pressing mould for preparing high-performance ceramic crucible to overcome the defects of the prior art, and solve the problems mentioned in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an isostatic pressing die for preparing a high-performance ceramic crucible comprises an outer sleeve die and a powder cavity, wherein a first plug head is arranged at the bottom of the outer sleeve die, a die plug is arranged at the upper end of the first plug head and close to the inner wall of the outer sleeve die, a positioning groove is formed in the inner side of the die plug, and an inner die core is arranged inside the positioning groove.

As the utility model discloses an optimal technical scheme, the second chock plug has been seted up to the upper end of inner mold core and the upper end inside that is located the cover mould, the metal block has been inlayed to the middle-end of second chock plug, the shape of metal block is the round platform type, and the material of metal block is made for high carbon steel.

As the preferred technical scheme of the utility model, first chock plug and second chock plug all have the chloroprene rubber to make.

As the utility model discloses a preferred technical scheme, first chock plug and plug formula structure as an organic whole, the external diameter of plug and the internal diameter size looks adaptation of cover die.

As the utility model discloses a preferred technical scheme, the cross section of interior mold core is oval, the internal diameter size of constant head tank and the external diameter size looks adaptation of interior mold core.

As the utility model discloses a preferred technical scheme, the open end tight fit on second chock plug and overcoat mould upper portion.

Compared with the prior art, the utility model provides a preparation high performance ceramic crucible's isostatic pressing mould possesses following beneficial effect:

1. according to the isostatic pressing die for preparing the high-performance ceramic crucible, the first plug head, the die plug, the positioning groove and the inner die core are arranged, and under the arrangement of the integrated structure of the first plug head and the die plug, the plastic position matched with the inner die core can be supported by the positioning groove, so that the plastic use of die casting can be conveniently carried out;

2. this isostatic pressing mould of preparation high performance ceramic crucible, through setting up second chock plug and metal block, use the cover mould to carry out ceramic powder compression in-process, through calculating and the metal block of preparation and second chock plug size equivalence, make it and ceramic powder in compression, under the cooperation of second chock plug and metal block, the second chock plug is through a small amount of shrink, can avoid traditional chock plug of cover mould to make by rubber entirely, produce great tensile stress when the pressure release and cause the crucible idiosome bottom of production to take place to pull, the metal block is at the fashioned in-process of static pressure boost in addition, can not produce the compression, or the compressive quantity can be neglected, can let the production quality of its crucible guarantee.

Drawings

FIG. 1 is a perspective view of the overall appearance of the present invention;

FIG. 2 is an overall plan sectional view of the present invention;

fig. 3 is a schematic structural view of a second plug of the present invention.

In the figure: 1. an outer cover die; 2. a powder chamber; 3. a first plug head; 4. a mold plug; 5. positioning a groove; 6. an inner mold core; 7. a second plug head; 8. a metal block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in this embodiment: the utility model provides a preparation high performance ceramic crucible's isostatic pressing mould, includes jacket mould 1 and powder chamber 2, and first chock plug 3 has been seted up to the bottom of jacket mould 1, and the upper end of first chock plug 3 has just been close to the inner wall of jacket mould 1 and has been seted up plug 4, and locating slot 5 has been seted up to the inboard of plug 4, and inner mold core 6 has been seted up to the inside of locating slot 5.

By arranging the first plug 3, the plug 4, the positioning groove 5 and the inner mold core 6, under the arrangement of the integrated structure of the first plug 3 and the plug 4, the plastic position of the inner mold core 6 can be supported and matched through the positioning groove 5 so as to be used in die-casting plasticity, in addition, under the matching of the first plug 3 and the plug 4, on one hand, the crucible product can be quickly taken out in a demolding way, on the other hand, the calibers of different positioning grooves 5 can be conveniently replaced, so that the crucible product with the outer sleeve mold 1 lower than the inner diameter size of the outer sleeve mold 1 can be processed in a matching way, and further, the processing practicability of the outer sleeve mold 1 is higher; through setting up second chock plug 7 and metal block 8, use mantle mould 1 to carry out the ceramic powder compression in-process, through calculating and make the metal block 8 equivalent with second chock plug 7 size, make it and ceramic powder in compression, under the cooperation of second chock plug 7 and metal block 8, second chock plug 7 is through a small amount of shrink, can avoid mantle mould 1 traditional chock plug to make by rubber entirely, produce great tensile stress when the pressure release and cause the crucible idiosome bottom of production to take place the pulling injury, metal block 8 is at the fashioned in-process of static pressure boost in addition, can not produce the compression, or the compressive quantity can be neglected, can let the production quality of its crucible guarantee.

In this embodiment, the upper end of the inner mold core 6 and the upper end of the outer sleeve mold 1 are provided with the second plug 7, the middle end of the second plug 7 is embedded with the metal block 8, the metal block 8 is in a circular truncated cone shape, and the metal block 8 is made of high-carbon steel. The metal block 8 can not be compressed or the compression amount can be ignored in the static pressure boosting and forming process, so that the situation that the bottom of the produced crucible blank is pulled due to the fact that the outer sleeve die 1 generates large tensile stress during pressure relief can be avoided; the first plug 3 and the second plug 7 are both made of neoprene rubber. The chloroprene rubber has the characteristics of wear resistance and high sealing property, so that the first plug head 3 and the second plug head 7 are more reliable to process and use; the first plug 3 and the plug 4 are of an integral structure, and the outer diameter of the plug 4 is matched with the inner diameter of the outer sleeve die 1. The structure can provide quick taking-out of the crucible product from the mold, and can facilitate the replacement of the calibers of different positioning grooves 5 so as to facilitate the processing of the crucible product with the size smaller than the inner diameter of the outer sleeve mold 1; the cross section of the inner mold core 6 is oval, and the inner diameter of the positioning groove 5 is matched with the outer diameter of the inner mold core 6. The plastic position matched with the inner mold core 6 is supported by the positioning groove 5 so as to facilitate the plastic use of the die-casting product; the second plug 7 is tightly matched with the opening end of the upper part of the outer sleeve die 1. The second plug 7 may be used to compact ceramic powder in the powder chamber 2 for iso-electrostatic manufacturing.

The utility model discloses a theory of operation and use flow: firstly, under the arrangement of the integrated structure of the first plug 3 and the die plug 4, the plastic position of the inner die core 6 can be supported and matched through the positioning groove 5 so as to be used for die-casting plasticity, in addition, under the matching of the first plug 3 and the die plug 4, on one hand, the crucible product can be quickly taken out from a die, on the other hand, the calibers of different positioning grooves 5 can be conveniently replaced, so that the crucible product with the outer sleeve die 1 lower than the inner diameter size of the outer sleeve die 1 can be processed in a matching way, and further, the processing practicability of the outer sleeve die 1 is higher; then, in the process of compressing the ceramic powder by using the outer sleeve die 1, the metal block 8 with the size equivalent to that of the second plug head 7 is calculated and manufactured, so that the metal block and the ceramic powder are compressed, and under the matching of the second plug head 7 and the metal block 8, the second plug head 7 is slightly shrunk, so that the situation that the traditional plug head of the outer sleeve die 1 is completely made of rubber and the bottom of a produced crucible blank is damaged due to the fact that large tensile stress is generated during pressure relief is avoided, and in addition, the metal block 8 cannot be compressed or the compression quantity is negligible in the process of static pressure boosting forming, so that the production quality of the crucible can be guaranteed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An isostatic pressing mould for preparing a high-performance ceramic crucible is characterized in that: including jacket die (1) and powder chamber (2), first chock plug (3) have been seted up to the bottom of jacket die (1), the upper end of first chock plug (3) and the inner wall that is close to jacket die (1) have seted up plug (4), constant head tank (5) have been seted up to the inboard of plug (4), inner mold core (6) have been seted up to the inside of constant head tank (5).

2. The isostatic mold for manufacturing a high performance ceramic crucible according to claim 1, wherein: the upper end of the inner mold core (6) is located inside the upper end of the outer sleeve mold (1) and is provided with a second plug head (7), a metal block (8) is embedded at the middle end of the second plug head (7), the metal block (8) is in a circular truncated cone shape, and the metal block (8) is made of high-carbon steel.

3. An isostatic mould for the production of high performance ceramic crucibles according to claim 1 or 2, wherein: the first plug head (3) and the second plug head (7) are both made of chloroprene rubber.

4. The isostatic mold for manufacturing a high performance ceramic crucible according to claim 1, wherein: the first plug head (3) and the die plug (4) are of an integrated structure, and the outer diameter of the die plug (4) is matched with the inner diameter of the outer sleeve die (1).

5. The isostatic mold for manufacturing a high performance ceramic crucible according to claim 1, wherein: the cross section of the inner mold core (6) is oval, and the inner diameter of the positioning groove (5) is matched with the outer diameter of the inner mold core (6).

6. An isostatic mold for making a high performance ceramic crucible according to claim 2, wherein: the second plug head (7) is tightly matched with the opening end of the upper part of the outer sleeve die (1).