CN215471858U

CN215471858U - Wet-type isostatic pressing die for zirconia ceramic product

Info

Publication number: CN215471858U
Application number: CN202121386203.0U
Authority: CN
Inventors: 陈旭; 陈科良
Original assignee: Dongguan Yu Tian New Materials Co ltd
Current assignee: Dongguan Yu Tian New Materials Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-01-11
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to the technical field of a zirconia ceramic product production mold, in particular to a wet isostatic pressing mold for a zirconia ceramic product, which comprises the following components: gum cover, core bar and plug, the gum cover is around the setting of core bar week side, the plug is located the gum cover with the opening part that forms between the core bar still includes: and the section die is arranged between the core bar and the rubber plug and forms a material cavity between the core bar and the rubber plug and is abutted against the rubber plug. The utility model can directly form products with complex shapes, and is beneficial to reducing the production cost, reducing the working strength and the like.

Description

Wet-type isostatic pressing die for zirconia ceramic product

Technical Field

The utility model relates to the technical field of production molds of zirconia ceramic products, in particular to a wet isostatic pressing mold of a zirconia ceramic product.

Background

The traditional forming die for large-size zirconia ceramic structural parts comprises: the processing method comprises the steps of firstly assembling the core rod, the rubber sleeve and the rubber plug into a die, filling powder into an inner cavity, sealing, putting the die into a working cylinder of a wet isostatic press to press a tubular rough blank, and processing the rough blank into a required shape and size in a green blank processing mode. The rough blank produced by the mold with the structure needs subsequent processing, and in the subsequent processing, due to the requirement of a processing technology, particularly large-size structural parts with complex structures, when the rough blank is pressed, a large processing allowance needs to be reserved, so that the consumption of powder is directly increased, and the waste of raw materials is caused. In addition, the tubular rough blank produced by the existing die has large size allowance, long follow-up processing time and low processing efficiency, and for products with complex structures, the processes and equipment need to be alternated when the products are processed, the times of clamping and positioning the workpiece and correcting the datum are increased, the damage and the rejection of the green blank and the datum deviation are easily caused, and the processing time is prolonged.

Therefore, it is desirable to provide a wet isostatic press for zirconia ceramic products to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a wet isostatic pressing die for zirconia ceramic products, which can directly form products with complex shapes, and is beneficial to reducing the production cost, the working strength and the like.

In order to achieve the purpose, the utility model adopts the technical scheme that:

zirconia ceramic product wet isostatic pressing mould, comprising: gum cover, core bar and plug, the gum cover is around the setting of core bar week side, the plug is located the gum cover with the opening part that forms between the core bar still includes: and the section die is arranged between the core bar and the rubber plug and forms a material cavity between the core bar and the rubber plug and is abutted against the rubber plug.

Preferably, a plurality of grooves are formed in the inner side wall of the section mould, and a first clamping gap block and a second clamping gap block are formed at the upper end and the lower end of the inner wall of the section mould respectively.

Preferably, the groove is arcuate.

Preferably, a step is formed on one end, abutted against the rubber sleeve, of the core bar towards the outer peripheral side, and the step is abutted against the second clamping lacking block.

Preferably, the part of the core rod outside the step is cylindrical.

Preferably, the rubber sleeve is in a hollow cylindrical shape.

Preferably, one end of the rubber plug is formed with a convex block clamped with the clamping lacking block.

Compared with the prior art, the wet isostatic pressing die for the zirconia ceramic product is characterized in that the section die is arranged, the material cavity is formed between the section die and the core rod, when the rubber plug is opened, the rubber plug is filled through the opening and then placed back into the wet isostatic pressing working rod, after compression molding, the rubber plug, the rubber sleeve and the section die are sequentially detached, a rough blank formed in the material cavity is vertically taken out from the core rod, and a qualified green blank can be obtained after trimming burrs, so that the working strength is reduced, the raw material waste is reduced, the production efficiency is improved, and the effect of reducing the production cost is achieved.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of a wet isostatic mold for a zirconia ceramic product according to the present invention.

FIG. 2 is a schematic view of a zirconia ceramic produced by a wet isostatic pressing mold of a zirconia ceramic product according to the present invention.

Description of the drawings the reference numerals indicate:

1-core bar, 11-step, 2-rubber sleeve, 3-section mould, 31-groove, 4-material cavity and 5-rubber plug.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, the wet isostatic pressing mold for zirconia ceramic product of the present embodiment includes: the rubber plug comprises a core bar 1, a rubber sleeve 2, a section mould 3, a material cavity 4 and a rubber plug 5, wherein the rubber sleeve 2 is arranged around the periphery of the core bar 1, the section mould 3 is arranged between the core bar 1 and the rubber sleeve 2 and is molded with the material cavity 4 between the core bar 1 and the section mould 3, the rubber plug 5 is arranged at an opening formed between the rubber sleeve 2 and the core bar 1, and the rubber plug 5 is abutted to the section mould 4.

In a preferred embodiment, the core bar 1 is cylindrical, and a step 11 is formed at one end of the core bar 1 in an outward direction. The rubber sleeve 2 is in a hollow cylindrical shape, a plurality of grooves 31 are formed in the inner side wall of the section mould 3, a first clamping block and a second clamping block are formed at the upper end and the lower end of the inner wall of the section mould 3 respectively, the grooves 31 are arc-shaped, and the second clamping blocks are abutted to the steps 11. One end of the rubber plug 5 is formed with a convex block clamped with the clamping block. In some embodiments, the groove 31 can be adjusted correspondingly according to the shape of the product.

The assembly and production principle of the wet isostatic pressing die for zirconia ceramic products in the embodiment are as follows, the core bar 1 is vertically placed on a charging working table, the section moulds 3 are assembled on the core bar 1, the lower end of the inner arc surface of the section mould 3 is matched with the step 11 formed at the bottom of the core bar 1 to form the material cavity 4, the rubber sleeve 2 is sleeved on the outer wall of the section mould 3, powder is charged into the material cavity 4 formed by the outer wall of the core bar 1 and the section mould 3, the rubber plug 5 is installed, the convex block of the rubber plug 5 is sleeved on the excircle of the core bar 1 to tighten the powder, and then the powder is placed into a wet isostatic pressing working cylinder to complete the press forming. Further, the wet isostatic pressing die of the zirconia ceramic product is taken out of the wet isostatic pressing working cylinder, sealing bands at the upper end and the lower end of the rubber sleeve 2 are firstly removed, then the rubber plug 5, the rubber sleeve 2 and the forming die 3 are sequentially detached, the formed rough blank in the material cavity 4 is vertically taken out of the core rod 1, the rough blank is arranged on a lathe, and burrs at the upper end surface and the lower end surface are cut off to obtain a qualified green blank, as shown in fig. 2.

This implementation zirconia ceramic product wet-type isostatic pressing mould, but the complicated product of direct forming appearance has reduced the waste of raw and other materials, because the rough blank shaping has just formed the complicated part appearance that reaches the technological requirement, has saved the process of unburned bricks appearance contour machining, and machining work load reduces by a wide margin, has improved machining efficiency, has alleviateed the intensity of operative employee's work, and furtherly, still reduced process and equipment and rotated, work piece clamping location and benchmark correction number of times, makes and causes the scrapped possibility of unburned bricks damage to be more and more littleer, has improved product quality, has reduceed manufacturing cost.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Zirconia ceramic product wet isostatic pressing mould, comprising: gum cover, core bar and plug, the gum cover is around the setting of core bar week side, the plug is located the gum cover with the opening part that forms between the core bar, its characterized in that still includes: and the section die is arranged between the core bar and the rubber plug and forms a material cavity between the core bar and the rubber plug and is abutted against the rubber plug.

2. The wet isostatic pressing mold for zirconia ceramic products as claimed in claim 1, wherein a plurality of grooves are formed on the inner side wall of said mold, and a first engaging notch and a second engaging notch are formed on the upper and lower ends of the inner wall of said mold, respectively.

3. The wet isostatic press for zirconium oxide ceramic products according to claim 2, wherein said grooves are curved.

4. The wet isostatic pressing mold for zirconia ceramic products according to claim 2, wherein a step is formed on the outer circumference side of the end of the core bar abutting against the rubber sleeve, and the step abuts against the second clamping notch block.

5. The wet isostatic press for zirconium oxide ceramic products according to claim 2, wherein the portion outside said core rod step is cylindrical.

6. The wet isostatic press for zirconium oxide ceramic products according to claim 1, wherein said rubber sleeve has a hollow cylindrical shape.

7. The wet isostatic press for zirconia ceramic products according to claim 2, wherein a protrusion is formed at one end of said rubber plug for engaging with said engaging notch.