CN215702562U

CN215702562U - Cold isostatic pressing mould for bending strength test of zirconia

Info

Publication number: CN215702562U
Application number: CN202120168130.1U
Authority: CN
Inventors: 钟小亮; 周小军
Original assignee: Ma'anshan Yunqi Jinrui New Materials Co ltd
Current assignee: Ma'anshan Yunqi Jinrui New Materials Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2022-02-01
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a cold isostatic pressing die for a bending strength test of zirconia, which comprises a die box, a die cover and a rubber sleeve. The mold box includes a base plate and a box wall connecting the base plate. The bottom plate and the box wall enclose a box cavity with an open top. The mould cover is used for being arranged at an opening at the top of the mould box to seal the box cavity. The rubber sleeve is arranged in the box cavity and is provided with a flange part. The rubber sleeve is clamped between the mold box and the mold cover through the flange part and is fixedly connected with the mold box and the mold cover, so that a blank cavity is formed between the rubber sleeve and the mold cover. The bottom plate is provided with a plurality of hydraulic holes. According to the mold structure, the rubber sleeves with different shapes are arranged in the mold box, so that zirconium oxide blanks with different shapes such as round, square and the like can be manufactured. In addition, the die disclosed by the utility model is simple in structure, convenient to install and reusable, the demolding procedure is simplified, the production efficiency is improved, the integral molding quality of the blank is improved, and the subsequent processing is facilitated.

Description

Cold isostatic pressing mould for bending strength test of zirconia

Technical Field

The utility model relates to a zirconia static pressure forming die.

Background

The cold isostatic pressing treatment is to place the processed object in a sealed container filled with liquid, to pressurize gradually by a pressurizing system, to apply equal pressure to each surface of the object, to reduce the distance between molecules and increase the density without changing the appearance and shape of the object under normal temperature, thereby improving the physical properties of the material. The cold isostatic pressing technology is widely applied to the field of ceramic processing, dry powder is generally adopted as a processing raw material, and the ceramic dry powder can be well bonded into a whole after being extruded through processes of early-stage ball milling, sand milling, granulation and the like. In the cold isostatic pressing process, the quality of the mold directly affects the quality and productivity of the formed workpiece.

Disclosure of Invention

The problems to be solved by the utility model are as follows: provided is a mold capable of producing a zirconia blank.

In order to solve the problems, the utility model adopts the following scheme:

a cold isostatic pressing mould for testing bending strength of zirconia comprises a mould box, a mould cover and a rubber sleeve; the mold box comprises a bottom plate and a box wall connected with the bottom plate; the bottom plate and the box wall enclose a box cavity with an opening at the top; the mould cover is arranged at the opening at the top of the mould box and used for sealing the box cavity; the rubber sleeve is arranged in the box cavity and is provided with a flange part; the rubber sleeve is fixedly connected with the die box and the die cover through the flange part, so that a blank cavity is formed between the rubber sleeve and the die cover; the bottom plate is provided with a plurality of hydraulic holes.

Further, the mold box and the mold cover are made of rigid materials; the top of the box wall is flush to form a sealing surface; a plurality of bolt holes are formed in the sealing surface; the die box and the die cover are fixedly connected through bolts arranged in the bolt holes.

Furthermore, the rubber sleeve is clamped between the sealing surface and the mold cover through the flange part and is fixedly connected with the mold box and the mold cover.

Further, the hydraulic holes are arranged on the bottom plate in a honeycomb shape.

Further, the mould cover is connected with a handle.

Further, the mould box is round or square.

The utility model has the following technical effects:

1. according to the mold structure, the rubber sleeves with different shapes are arranged in the mold box, so that zirconium oxide blanks with different shapes such as round, square and the like can be manufactured.

2. The mold disclosed by the utility model is simple in structure, convenient to install, capable of being repeatedly used, capable of simplifying the demolding procedure, improving the production efficiency, improving the integral molding quality of the blank body and facilitating subsequent processing.

Drawings

Fig. 1 is an overall structure of an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a mold box according to an embodiment of the present invention.

Wherein, 1 is a mould box, 2 is a mould cover, 3 is a rubber sleeve, and 4 is a bolt;

11 is a bottom plate, 12 is a box wall, 13 is a hydraulic hole, 14 is a sealing surface, 15 is a bolt hole, and 19 is a box cavity;

21 is a handle, 31 is a flange part, and 39 is a blank cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, a cold isostatic pressing mold for a bending strength test of zirconia is used for cold isostatic pressing of a zirconia blank. The formed zirconia blank is used for zirconia bending strength test. The mold comprises a mold box 1, a mold cover 2 and a rubber sleeve 3. The mold box 1 and the mold cover 2 are made of rigid materials, such as metal materials, for example, stainless steel. The mould box 1 comprises a bottom plate 11 and a box wall 12 connecting the bottom plate 11. The bottom plate 11 is a circular plate. The box wall 12 is a circular cylinder and is connected with the edge of the bottom plate 11 in a manner that the axis of the circular cylinder is perpendicular to the bottom plate 11, so that a box cavity 19 with an open top is formed by the circular cylinder and the bottom plate 11, and a box body with a circular structure is formed. The top of the box wall 12 is flush, forming a sealing surface 14. The sealing surface 14 is provided with a plurality of bolt holes 15. And the mold cover 2 is arranged at the opening at the top of the mold box 1 to seal the box cavity 19 and is fixedly connected with the mold box 1 through a bolt 4 arranged in the bolt hole 15. The rubber sleeve 3 is made of flexible materials such as rubber or plastics and is of a bowl-shaped structure, and the edge of the rubber sleeve is provided with a flange part 31. The rubber sleeve 3 is arranged in the box cavity 19 and is clamped between the sealing surface 14 and the mold cover 2 through the flange part 31 to be fixedly connected with the mold box 1 and the mold cover 2, so that a blank cavity 39 is formed between the rubber sleeve 3 and the mold cover 2. The flange part 31 thus acts as a seal for the blank space 39. The bottom plate 11 is provided with a plurality of hydraulic holes 13. The hydraulic holes 13 are arranged in a honeycomb shape on the bottom plate 11.

The working principle of the mold for manufacturing the zirconia blank in the embodiment is as follows: lay rubber sleeve 3 in mould box 1 at first, then put into the zirconia raw materials in the bowl of rubber sleeve 1 again, treat the zirconia in the rubber sleeve 3 and put the back full, cover 2 lids on mould box 1 again, and through bolt 4 with mould box 1, mould lid 2 and rubber sleeve 3 locking are fixed, later put into a hydraulic pressure storehouse with this mould again, the extrusion through the hydraulic press makes the high-pressure liquid in the hydraulic pressure storehouse extrude into box cavity 19 through hydraulic pressure hole 13 in, and then extrudees rubber sleeve 3, under the continuous pressurization effect of hydraulic press, the material suppression shaping in the rubber sleeve 3 is the zirconia blank. After isostatic pressing is finished, the die can be taken out of the hydraulic bin, the bolts 3 are opened, and the zirconium oxide blank formed by pressing can be taken out. Obviously, because a plurality of moulds can be placed in the hydraulic cabin, a plurality of zirconia blanks can be formed at one time. In addition, the forming shape of the zirconia blank is determined by the shape of the rubber sleeve 3, and the mold box of the embodiment can be placed with the rubber sleeves 3 of different shapes to form the zirconia blanks of different shapes at one time.

It should be noted that the mold in this embodiment is a circular structure, and those skilled in the art will understand that the mold may have other structures such as a square structure. Under the square structure of the mold, the bottom plate 11 is a square plate body, the box wall 12 is surrounded by four plate bodies, and at the moment, the mold box 1 is square.

In addition, in the present embodiment, a handle 21 is also attached to the mold cover 2.

In addition, in the embodiment, the mold box 1 and the mold cover 2 are fixed by bolts, and those skilled in the art understand that the mold box 1 and the mold cover 2 can also be fixed by means of locking.

Claims

1. A cold isostatic pressing die for a bending strength test of zirconia is characterized by comprising a die box (1), a die cover (2) and a rubber sleeve (3); the mould box (1) comprises a bottom plate (11) and a box wall (12) connected with the bottom plate (11); the bottom plate (11) and the box wall (12) enclose a box cavity (19) with an open top; the mould cover (2) is arranged at the opening at the top of the mould box (1) and used for sealing the box cavity (19); the rubber sleeve (3) is arranged in the box cavity (19) and is provided with a flange part (31); the rubber sleeve (3) is fixedly connected with the die box (1) and the die cover (2) through the flange part (31), so that a blank cavity (39) is formed between the rubber sleeve (3) and the die cover (2); the bottom plate (11) is provided with a plurality of hydraulic holes (13).

2. The cold isostatic press for bending strength tests of zirconia according to claim 1, wherein said mold box (1) and said mold lid (2) are made of rigid material; the top of the box wall (12) is flush to form a sealing surface (14); a plurality of bolt holes (15) are formed in the sealing surface (14); the die box (1) and the die cover (2) are fixedly connected through bolts (4) arranged in the bolt holes (15).

3. The isostatic cool press mold for bending strength test of zirconia according to claim 2, wherein said rubber sleeve (3) is clamped between said sealing surface (14) and said mold cover (2) by said flange portion and is fixedly connected to said mold box (1) and said mold cover (2).

4. A cold isostatic mould for bending strength tests of zirconia according to claim 1, 2 or 3, wherein said hydraulic holes (13) are arranged in a honeycomb shape on said bottom plate (11).

5. The isostatic cool press mould for bending strength test of zirconia according to claim 1, 2 or 3, wherein a handle (21) is attached to said mould cover (2).

6. The cold isostatic press for bending strength tests of zirconia according to claim 1, 2 or 3, wherein said mould box (1) is circular or square.