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Preparation method and device of high-tap-density and high-stability ceramic green body

A technology of tap density and high stability, applied in supply devices, ceramic molding machines, manufacturing tools, etc., can solve the problems of unstable quality and low efficiency of manual filling of molds, so as to maintain stable quality and avoid green body density. Inequality, effects of control variables

Active Publication Date: 2022-01-28
有研资源环境技术研究院(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above technical problems, the main purpose of the present invention is to provide a method and device for preparing a ceramic body with high tap density and high stability, so as to solve the problem of low efficiency and poor quality of manual filling of molds in the preparation process of ceramic bodies in the prior art. stability problem

Method used

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  • Preparation method and device of high-tap-density and high-stability ceramic green body
  • Preparation method and device of high-tap-density and high-stability ceramic green body
  • Preparation method and device of high-tap-density and high-stability ceramic green body

Examples

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Effect test

Embodiment 1

[0054] A method for preparing a high-tap density and high-stability ceramic green body provided by the first embodiment of the present invention, such as figure 1 shown, including the following steps:

[0055] Step S1: Put the prepared mold case into the designed charging device.

[0056] In this embodiment, in the process of preparing the ceramic green body, the step of manually adding ceramic powder to the mold before the isostatic pressing process is eliminated, and the prepared mold is selected to be placed in a designed device for Automatic loading saves manpower spent on manual loading.

[0057] Step S2: Start the charging device, fill and vibrate the mold casing through the charging device, and obtain the module.

[0058] In this embodiment, the preset charging device can perform automatic feeding. After the device is started, ceramic powder is automatically added to the mold sleeve at a preset speed. In practice, it is possible to finely control the amount of feedin...

Embodiment 2

[0064] Based on the method for preparing a high-tap density and high-stability ceramic body, the second embodiment of the present invention provides a device for preparing a high-tap density and high-stability ceramic body. to perform the above method. Such as figure 2 As shown, the device mainly includes: an underframe 1, a moving frame 2, a vibration module 3, a lifting module 4, a feeding module 5 and an electric control box 6;

[0065] The feeding module 5 is installed on the lifting platform of the lifting module 4, and the lifting module 4 controls the feeding module 5 to move up and down. The lifting module 4 is installed on the moving frame of the moving frame 2, and the moving frame 2 drives the lifting module 4 to move horizontally. The mobile frame 2 is horizontally slidingly connected with the bottom frame 1 through the horizontal guide rails arranged on both sides of the bottom frame 1 . The vibration module 3 is installed on the vibration mechanism supporting...

Embodiment 3

[0090] This embodiment is a further example based on Embodiment 2, and the similarities will not be repeated. In this embodiment, the steel sleeve 24 equipment with an inner diameter of 105 mm and a length of 400 mm is used to prepare a zirconia ceramic green body as follows: example.

[0091] Step 1: Add ZrO 2 20 kg of ceramic powder is added into the barrel of the feeding module 5 through the feeding port 41, and a rubber mold cover with a diameter of 100 mm and a height of 400 mm is placed in the vibrating module 3 .

[0092] Step 2: Set the charging height on the electric control box 6 to 400 mm, the speed of the feeding motor to 40 rpm, the number of vibrations to 400 times, and the vibration speed to 50 times / min; start the device and start feeding.

[0093] Step 3: After the feeding is finished, continue to vibrate for 300 times, the device stops, and the module is taken out.

[0094] Step 4: Repeat the above operation 5 times to obtain 15 loaded molds;

[0095] Step...

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Abstract

The invention discloses a preparation method and device of a high-tap-density and high-stability ceramic green body. The method comprises the following steps: firstly, putting a die sleeve into a charging device, and then filling the die sleeve through the charging device to obtain a module; and placing the module in an isostatic pressing device for isostatic pressing forming, and obtaining a green body. According to the method provided by the invention, filler is directly prepared into the module through the charging device, so that the problem of non-uniform density of the prepared module caused by manual charging is avoided; and meanwhile, in a module manufacturing process, on the basis of mechanical compaction operation of the charging device, the complexity of manual compaction can be avoided, and the compaction effect can be further improved, so that the situation that due to the fact that apparent density of powder is too low, formed green bodies are deformed or contracted inconsistently after isostatic pressing is conducted is avoided. Therefore, the method provided by the invention has relatively high practicability and wide application prospect in the field.

Description

technical field [0001] The invention relates to the technical field of ceramic material preparation, in particular to a method and device for preparing a high-tap density and high-stability ceramic body. Background technique [0002] Cold isostatic pressing adopts liquid to transmit pressure, because the forming pressure is consistent in all directions, it is one of the important methods of powder metallurgy forming. In this method, a rubber mold is generally used to fill and mold the powder, and then the filled mold is sealed and isostatically pressed to obtain a green body. In the process of powder filling and mold loading, most of the existing manufacturers mainly use manual mold loading. By manually weighing a certain weight of powder, manually adding it to the mold sleeve, and then manually vibrating the mold sleeve, the gap between the powders is eliminated through vibration to achieve Vibrant effect. [0003] However, the manual filling method is not only time-consu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/00B28B1/087B28B13/02B28B17/00
CPCB28B3/003B28B1/0873B28B13/027B28B17/00B28B17/0063Y02P40/60
Inventor 彭程石志霞孙静张碧田张恒段华英王星明
Owner 有研资源环境技术研究院(北京)有限公司
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