CN219926348U

CN219926348U - Slip casting reaction sintering silicon carbide ceramic forming tool

Info

Publication number: CN219926348U
Application number: CN202321167014.3U
Authority: CN
Inventors: 柴晓明; 鞠晓
Original assignee: Weifang Zhongjia Silicon Carbide Technology Co ltd
Current assignee: Weifang Zhongjia Silicon Carbide Technology Co ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-10-31
Anticipated expiration: 2033-05-16

Abstract

The utility model relates to the technical field of silicon carbide ceramic forming, in particular to a grouting reaction sintering silicon carbide ceramic forming tool which comprises a base, wherein a die carrier is fixedly arranged on the surface of the base, a lower die holder is movably sleeved in the die carrier, an inner notch is formed in the inner side surface of the die carrier, a transmission block is fixedly arranged on the lower die holder, the transmission block is in sliding connection with the inner notch, a spring is fixedly connected between the die carrier and the lower die holder, a telescopic cylinder is fixedly arranged at the upper end of the base through a top frame, a telescopic end of the telescopic cylinder is fixedly connected with an upper die holder through a connecting block, a pressing block is fixedly arranged on the upper die holder, and the pressing block is matched with the inner notch.

Description

Slip casting reaction sintering silicon carbide ceramic forming tool

Technical Field

The utility model relates to the technical field of silicon carbide ceramic forming, in particular to a grouting reaction sintering silicon carbide ceramic forming tool.

Background

The slip casting is a method for casting ceramic slurry into a mould to form a product, is suitable for batch forming of products with complex shapes or large pieces, is suitable for various ceramic products, can be used for forming devices with complex shapes, irregular shapes, thin walls and large volumes and with loose size requirements by a slip casting method, and is characterized in that ceramic powder is prepared into ceramic slurry with fluidity during the silicon carbide ceramic forming, then the ceramic slurry with fluidity is injected into a gypsum mould, the water absorption of the gypsum mould is utilized to enable dispersed particles in the ceramic slurry to adhere to the mould wall, a blank layer with the same shape as the gypsum mould is formed, and the blank layer is gradually thickened along with the extension of time to form a silicon carbide ceramic blank.

Disclosure of Invention

The utility model aims to provide a grouting reaction sintering silicon carbide ceramic forming tool for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a slip casting reaction sintering carborundum ceramic shaping frock, includes the base, the fixed surface of base installs the die carrier, the inside movable sleeve of die carrier is equipped with the die holder, the interior notch has been seted up to the inboard surface of die carrier, fixedly provided with transmission piece on the die holder, transmission piece and inside groove mouth sliding connection, fixedly connected with spring between die carrier and the die holder, the upper end of base has flexible cylinder through roof-rack fixed mounting, the flexible end of flexible cylinder passes through connecting block fixedly connected with upper die base, fixedly provided with briquetting on the upper die base, briquetting and interior notch looks adaptation, the top surface of transmission piece contacts in the bottom surface of briquetting, be formed with the shaping die cavity between die carrier, die holder and the upper die base.

Preferably, the limit groove is formed in the top surface of the transmission block, the limit column is fixedly mounted on the bottom surface of the pressing block, and the limit column is matched with the limit groove.

Preferably, a guide rod is fixedly arranged between the base and the top frame, a guide sleeve is fixedly arranged at one end of the connecting block, and the guide sleeve is sleeved on the outer side of the guide rod in a sliding manner.

Preferably, a feeding hole is formed in the surface of the upper die holder, and a material injection nozzle is fixedly communicated with the upper end of the feeding hole.

Preferably, the top surfaces of the die carrier, the upper die holder and the pressing block are flush.

Preferably, the bottom side of base fixedly connected with a plurality of installation pieces, the mounting hole has been seted up on the surface of installation piece.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, slurry is injected into a forming cavity formed among the die frame, the lower die holder and the upper die holder through the material injection nozzle, after a silicon carbide ceramic blank is formed, the upper die holder is driven to ascend by using the telescopic cylinder, and the lower die holder is ejected upwards in the die frame by using the spring in a contracted state, so that the silicon carbide ceramic blank is completely exposed out of the die frame, the formed silicon carbide ceramic blank is conveniently demolded and taken out, the formed silicon carbide ceramic blank is not required to be poured into the die for demolding and taking out, the silicon carbide ceramic blank is prevented from being damaged easily during demolding, the final yield of the silicon carbide ceramic blank is improved, and the integral molding quality of the silicon carbide ceramic is ensured.

Drawings

FIG. 1 is a schematic cross-sectional structural view of a slip casting reaction sintering silicon carbide ceramic forming tool;

FIG. 2 is a schematic diagram of a three-dimensional structure of a slip casting reaction sintering silicon carbide ceramic forming tool during processing;

fig. 3 is a schematic diagram of a three-dimensional structure of a slip casting reaction sintering silicon carbide ceramic molding tool during demolding.

In the figure: 1. a base; 101. a top frame; 102. a telescopic cylinder; 103. a connecting block; 104. a guide rod; 105. a guide sleeve; 106. a mounting block; 2. a mould frame; 201. an inner notch; 3. a lower die holder; 301. a transmission block; 302. a limit groove; 4. an upper die holder; 401. briquetting; 402. a limit column; 403. a feed inlet; 404. a material injection nozzle; 5. a molding cavity; 6. a spring; 7. a silicon carbide ceramic body.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution:

the utility model provides a slip casting reaction sintering carborundum ceramic shaping frock, including base 1, the fixed surface mounting of base 1 has die carrier 2, die carrier 2's inside movable sleeve is equipped with die holder 3, the interior notch 201 has been seted up to die carrier 2's inboard surface, fixedly provided with transmission piece 301 on die holder 3, transmission piece 301 and inside groove mouth 201 sliding connection, fixedly connected with spring 6 between die carrier 2 and the die holder 3, telescopic cylinder 102 has been passed through roof-rack 101 fixed mounting to base 1's upper end, telescopic cylinder 102's telescopic end passes through connecting block 103 fixedly connected with upper die holder 4, fixedly be provided with briquetting 401 on the upper die holder 4, briquetting 401 and inside groove mouth 201 looks adaptation, the top surface of transmission piece 301 contacts in the bottom surface of briquetting 401, be formed with shaping chamber 5 between die carrier 2, die holder 3 and the upper die holder 4.

As a preferred implementation manner in this embodiment, the top surface of the transmission block 301 is provided with a limit groove 302, the bottom surface of the pressing block 401 is fixedly provided with a limit post 402, and the limit post 402 is adapted to the limit groove 302, so that the limit post 402 can be inserted into the limit groove 302, and the purpose of limiting the space between the pressing block 401 and the transmission block 301 is achieved.

As a preferred embodiment in this embodiment, a guide rod 104 is fixedly installed between the base 1 and the top frame 101, a guide sleeve 105 is fixedly installed at one end of the connecting block 103, and the guide sleeve 105 is slidably sleeved on the outer side of the guide rod 104, so that the purpose of guiding the upper die holder 4 during lifting and lowering is achieved.

As a preferred embodiment in this embodiment, a feeding port 403 is formed on the surface of the upper die holder 4, and a filling nozzle 404 is fixedly connected to the upper end of the feeding port 403.

As a preferred implementation in this embodiment, the top surfaces of the die carrier 2, the upper die holder 4 and the pressing block 401 are all flush.

As a preferred implementation manner in this embodiment, the bottom side of the base 1 is fixedly connected with a plurality of mounting blocks 106, and the surface of the mounting blocks 106 is provided with mounting holes, so that the purpose of fixedly mounting the base 1 is achieved.

Working principle:

in the use process, the telescopic cylinder 102 is used for driving the upper die holder 4 to descend, the pressing block 401 can be pressed to be in contact with the transmission block 301, the lower die holder 3 is driven to move into the die holder 2, the spring 6 is contracted until the upper die holder 4 is positioned in the die holder 2, slurry is injected into the forming cavity 5 formed among the die holder 2, the lower die holder 3 and the upper die holder 4 through the material injection nozzle 404, after the silicon carbide ceramic blank 7 is formed, the telescopic cylinder 102 is used for driving the upper die holder 4 to ascend, the lower die holder 3 is pushed upwards in the die holder 2 by utilizing the spring 6 in a contracted state, and the silicon carbide ceramic blank 7 is completely exposed out of the die holder 2, so that the silicon carbide ceramic blank 7 can be conveniently demoulded and taken out.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a slip casting reaction sintering carborundum ceramic shaping frock, includes base (1), its characterized in that: the surface fixed mounting of base (1) has die carrier (2), the inside movable sleeve of die carrier (2) is equipped with die holder (3), interior notch (201) have been seted up to the inboard surface of die carrier (2), fixedly on die holder (3) be provided with transmission piece (301), transmission piece (301) and inside groove mouth (201) sliding connection, fixedly connected with spring (6) between die carrier (2) and die holder (3), the upper end of base (1) has telescopic cylinder (102) through roof-rack (101) fixed mounting, the telescopic end of telescopic cylinder (102) is through connecting block (103) fixedly connected with upper die base (4), fixedly on upper die base (4) be provided with briquetting (401), briquetting (401) and inside groove mouth (201) looks adaptation, the top surface of transmission piece (301) contacts in the bottom surface of briquetting (401), be formed with shaping chamber (5) between die carrier (2), die holder (3) and upper die base (4).

2. The slip casting reaction sintering silicon carbide ceramic forming tool according to claim 1, wherein: the top surface of the transmission block (301) is provided with a limit groove (302), the bottom surface of the pressing block (401) is fixedly provided with a limit column (402), and the limit column (402) is matched with the limit groove (302).

3. The slip casting reaction sintering silicon carbide ceramic forming tool according to claim 1, wherein: a guide rod (104) is fixedly arranged between the base (1) and the top frame (101), a guide sleeve (105) is fixedly arranged at one end of the connecting block (103), and the guide sleeve (105) is sleeved on the outer side of the guide rod (104) in a sliding manner.

4. The slip casting reaction sintering silicon carbide ceramic forming tool according to claim 1, wherein: a feeding hole (403) is formed in the surface of the upper die holder (4), and a material injection nozzle (404) is fixedly communicated with the upper end of the feeding hole (403).

5. The slip casting reaction sintering silicon carbide ceramic forming tool according to claim 1, wherein: the top surfaces of the die carrier (2), the upper die holder (4) and the pressing block (401) are flush.

6. The slip casting reaction sintering silicon carbide ceramic forming tool according to claim 1, wherein: the base is characterized in that a plurality of mounting blocks (106) are fixedly connected to the bottom side of the base (1), and assembly holes are formed in the surfaces of the mounting blocks (106).