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Method for preparing microcrystal wear-resisting zirconia ball

A technology of zirconia balls and microcrystals, applied in the field of grinding media, can solve the problems of large one-time investment, large difference in particle size of ceramic balls, complicated operation, etc., and achieve the effect of large application range, high density and stable chemical properties

Active Publication Date: 2010-12-15
淄博启明星新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The rolling ball forming method in the prior art is generally to extrude the ultrafine powder raw material slurry, cut off and granulate, and then roll forming. The disadvantages are: 1) This method requires many equipment and a large one-time investment; 2. ) This method is complicated to operate, and because the particle size uniformity of the prepared seed balls is not good, the longer the rolling time is, the larger the particle size difference of the ceramic balls is, so that the method is only applicable to the preparation of small particle size ceramic balls, Especially suitable for ceramic balls smaller than 8mm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Ingredients: 90Kg of zirconia powder, 1Kg of yttrium oxide powder, 0.05Kg of binder (PVA-99), mix the raw materials of the above weight evenly and set aside;

[0032] 2) According to the prior art, the raw material is ball-milled to a particle size of 0.5 μm by wet ball milling, and then milled, sprayed and granulated to obtain an ultrafine powder;

[0033] 3) Roll into balls according to the following steps: a. Preparation of seed balls: put 100Kg of superfine powder into a ball machine, add 15kg of water, stir and mix evenly, and sieve to obtain seeds with a particle size of 0.3mm. Ball; b. Rolling of balls: add seed balls to the rolling ball machine, when rolling forming, according to the superfine powder and water weight ratio of 1:1, continuously feed into the rolling ball machine; during the rolling process, the formation is continuously detected. The diameter of the ball is rolled for 30-35 hours to produce a ceramic ball with a diameter of 50mm; add water and...

Embodiment 2-4

[0043] The batching process is carried out according to Table 1, and others are the same as in Example 1.

[0044] Table 2 Embodiment 6-8 list of ingredients

[0045] raw material name

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PUM

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Abstract

The invention relates to a method for preparing a microcrystal wear-resisting zirconia ball, and belongs to the technical field of grinding mediums. The method is characterized by comprising the following steps of: preparing superfine powder raw materials first by adopting wet-process ballmilling and spray granulation; rolling for forming; and drying, sintering and polishing to prepare a microcrystal wear-resisting ceramic ball with the grain diameter between 0.5 to 50 millimeters. The method has the advantages of less used equipment, small investment, high yield, easy production expansion and the like; moreover, the ceramic ball prepared by the method has the advantages of large density, wear resistance and stable performance.

Description

[0001] The present invention is a divisional application of a Chinese patent application with the application number 200710014580.X, the application date is April 27, 2007, and the name is "a method for preparing microcrystalline wear-resistant ceramic balls". technical field [0002] The invention belongs to the technical field of grinding media, and in particular relates to a zircon ceramic ball and a preparation method thereof. Background technique [0003] Because of its high strength, high hardness, wear resistance and corrosion resistance, ceramic balls are widely used as grinding media in ceramics, electronics, building materials, new materials and other fields. Ceramic balls in the prior art are usually made by isostatic pressing, for example: "Materials Herald" in October 2000, the 14th volume album, Jia Guangyao, Zhang Weiru, etc. "Development of Low-Cost Zirconia Grinding Balls" discloses a The preparation method of the grinding medium is to prepare ultra-fine pow...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622
Inventor 张合军
Owner 淄博启明星新材料股份有限公司
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