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Zirconia ceramic abrasive wheel and preparation method

A technology of zirconia ceramics and stabilized zirconia, applied in grinding/polishing equipment, grinding devices, manufacturing tools, etc., can solve the problems of low strength, high production cost, and short service life of ceramic grinding discs, and adapt to working conditions The effect of wide range, long service life and precise shape and size

Inactive Publication Date: 2014-03-12
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ceramic grinding discs are usually formed by grouting, or pressed into fan-shaped small pieces of ceramic blanks, fired, processed, and then assembled into ceramic grinding discs. Due to the limitation of process technology, the ceramic grinding discs produced at present have low strength and low toughness. Poor flatness, high production cost, short service life

Method used

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  • Zirconia ceramic abrasive wheel and preparation method
  • Zirconia ceramic abrasive wheel and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. Raw material preparation

[0017] The yttria-stabilized zirconia powder with a particle size of less than 1 μm and a yttria content of 3 mol% is made into a 0.1 mm yttria-stabilized zirconia spray-granulated powder (14).

[0018] 2. Compression molding

[0019] When pressing, first install the rubber pad (2) of the upper template on the upper template (1), set the main core tube rubber tube (10) on the main core tube (7), and then set the auxiliary core tube rubber tube (13) On the auxiliary core (11), then set the set main core (7) and auxiliary core (11) on the corresponding position of the upper template (1), and use the main core clamp (9) and auxiliary core Cylinder fixture (12) is positioned and fixed with the upper template (1), and then the middle mold cylinder (3) is lined with rubber cylinder (4) and fixed with the upper template (1), and then loaded into the yttria stabilized zirconia spray mold. Granular powder (14), then set the lower formwork rubber p...

Embodiment 2

[0025] 1. Raw material preparation

[0026] The yttria-stabilized zirconia powder with a particle size of less than 0.5 μm and a yttria content of 4.5 mol% is made into a 0.3 mm yttria-stabilized zirconia spray-granulated powder (14).

[0027] 2. Compression molding

[0028] When pressing, first install the rubber pad (2) of the upper template on the upper template (1), set the main core tube rubber tube (10) on the main core tube (7), and then set the auxiliary core tube rubber tube (13) On the auxiliary core (11), then set the set main core (7) and auxiliary core (11) on the corresponding position of the upper template (1), and use the main core clamp (9) and auxiliary core Cylinder fixture (12) is positioned and fixed with the upper template (1), and then the middle mold cylinder (3) is lined with rubber cylinder (4) and fixed with the upper template (1), and then loaded into the yttria stabilized zirconia spray mold. Granular powder (14), then set the lower formwork rubb...

Embodiment 3

[0034] 1. Raw material preparation

[0035] The yttria-stabilized zirconia powder with a particle size of less than 0.2 μm and a yttria content of 5 mol% is made into a 0.5 mm yttria-stabilized zirconia spray granulated powder (14).

[0036] 2. Compression molding

[0037]When pressing, first install the rubber pad (2) of the upper template on the upper template (1), set the main core tube rubber tube (10) on the main core tube (7), and then set the auxiliary core tube rubber tube (13) On the auxiliary core (11), then set the set main core (7) and auxiliary core (11) on the corresponding position of the upper template (1), and use the main core clamp (9) and auxiliary core Cylinder fixture (12) is positioned and fixed with the upper template (1), and then the middle mold cylinder (3) is lined with rubber cylinder (4) and fixed with the upper template (1), and then loaded into the yttria stabilized zirconia spray mold. Granular powder (14), then set the lower formwork rubber ...

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Abstract

The invention provides a zirconia ceramic abrasive wheel and a preparation method. The zirconia ceramic abrasive wheel is characterized by comprising a ceramic circular ring (A) with a certain wall thickness; grooves with bumps (15) and concaves (16) at intervals are distributed on one surface of the ceramic circular ring (A); eight same through holes (17) are uniformly distributed at intervals along the outer side and the inner side of the ceramic circular ring; the preparation method comprises the steps of preparing raw materials, pressing, sintering and processing; and the preparation method is characterized by comprising the following steps of: preparing yttria stabilized zirconia powder with the granularity less than 1 mum into spray granulation powder (14); uniformly filling the spray granulation powder in a special mould; isostatically forming at the pressure of 50-300 Mpa and keeping the pressure for 10-30 min; demoulding and preparing a zirconia ceramic abrasive wheel billet body; and sintering and cold processing to prepare the zirconia ceramic abrasive wheel. The zirconia ceramic abrasive wheel has the advantages of high intensity, high toughness, good wear resisting property and long service life and is applied to large-scale industrial production.

Description

technical field [0001] The invention relates to a zirconia ceramic grinding disc and a preparation method thereof, belonging to the technical field of structural ceramic preparation. Background technique [0002] Ceramic grinding discs are usually formed by grouting, or pressed into fan-shaped small pieces of ceramic blanks, fired, processed, and then assembled into ceramic grinding discs. Due to the limitation of process technology, the ceramic grinding discs produced at present have low strength and low toughness. The flatness is poor, the production cost is high, and the service life is short. Contents of the invention [0003] The object of the present invention is to provide a zirconia ceramic grinding disc and a preparation method that can overcome the above defects, adapt to a wide range of working conditions and have excellent performance. Its technical solution is: [0004] It includes a ceramic ring (A) with a certain wall thickness. On one surface of the ceram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00C04B35/48
Inventor 唐竹兴张颖
Owner SHANDONG UNIV OF TECH