Composite ceramic and preparation method thereof and application of composite ceramic in preparation of linear guide rail

A composite ceramic and linear guide technology, applied in the field of ceramics, can solve problems such as performance to be improved, and achieve the effects of reducing the premature peeling of the shaft, high precision stability, and high hardness

Inactive Publication Date: 2021-12-10
YIXING YUNBO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bending strength of the insulation positioning ceramic kit material reaches 1163MPa, but as a material for linear guide rails, its performance still needs to be improved

Method used

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  • Composite ceramic and preparation method thereof and application of composite ceramic in preparation of linear guide rail
  • Composite ceramic and preparation method thereof and application of composite ceramic in preparation of linear guide rail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) By 81wt% zirconia powder (0.2~0.4μm in particle size), 14wt% alumina powder (0.23~0.38μm in particle size), 5wt% yttrium oxide (purity 99.9%), in sand mill Thoroughly grind into a uniform mixed powder.

[0034] (2) Add conventional granulation aids (defoamer 0.3wt% / powder, dispersant 0.1wt% / powder, viscous agent 4wt% / powder) into the mixed powder and granulate through a prilling tower to obtain granules.

[0035] (3) Put the granular material into a mold, and then use an isostatic press to press and shape it under a pressure above 200 MPa to obtain a ceramic blank.

[0036] (4) The pottery blank is transferred into a high-temperature furnace and sintered at 1500-1600°C for 2-12 hours to form a composite ceramic.

[0037] (5) Finally, it is finished to the precision size used.

[0038] Table 1 Performance comparison of different materials

[0039]

[0040]

Embodiment 2

[0042] (1) By 78wt% zirconia powder, 16wt% alumina powder (see Table 2 for particle size ratio), 6wt% yttrium oxide (purity 99.9%), fully grind into a uniform mixed powder in a sand mill .

[0043] (2) Add granulation aids (defoamer 0.3wt% / powder, dispersant 0.1wt% / powder, viscous agent 4wt% / powder) into the mixed powder and granulate through a granulation tower to obtain granules.

[0044] (3) Put the granular material into a mold, and then use an isostatic press to press and shape it under a pressure above 200 MPa to obtain a ceramic blank.

[0045] (4) The pottery blank is transferred into a high-temperature furnace and sintered at 1500-1600°C for 2-12 hours to form a composite ceramic.

[0046] (5) Finally, it is finished to the precision size used.

[0047] Table 2 particle size ratio is as follows:

[0048] Zirconia μm Alumina μm Recipe 1 0.85 0.91 Recipe 2 0.64 0.37 Recipe 3 0.56 0.43 Recipe 4 0.35 0.16 Recipe 5 0.35 0....

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Abstract

The invention discloses a composite ceramic. The composite ceramic is mainly prepared by sintering the following raw materials in percentage by weight: 78-81% of zirconium oxide with a particle size of 0.2-0.4 [mu]m, 14-16% of aluminum oxide with a particle size of 0.23 to 0.38 [mu]m and 4-6% of yttrium oxide. Compared with the prior art, the composite ceramic disclosed by the invention has the advantages of wear resistance, high hardness, low noise, impact resistance, difficulty in cracking, strong acid and alkali resistance, insulation, antimagnetism and the like, is a good material for the linear guide rail, can enable the linear guide rail to be longer in service life and higher in precision stability, and is suitable for working in a severe environment.

Description

technical field [0001] The invention belongs to the field of ceramics, and in particular relates to a composite ceramic which can be used for a linear guide rail. Background technique [0002] Linear guide rails are also called line rails, slide rails, linear guide rails, and linear slide rails, and their main components include guide rails and sliders. Linear guide rails are mainly used in automatic machinery, such as CNC machine tools, bending machines, laser welding machines, etc., where high-precision or high-speed linear reciprocating motions are used to support and guide moving parts, and perform reciprocating linear motion in a given direction , and can bear a certain torque, and can achieve high-precision linear motion under high load conditions. [0003] At present, linear guide rails are mainly made of stainless steel and alloy steel. Such materials are easy to wear during high-speed motion, resulting in short service life and increasing accuracy deviation. With ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622F16C29/00
CPCC04B35/48C04B35/622F16C29/00C04B2235/3217C04B2235/3225C04B2235/6567C04B2235/77C04B2235/96C04B2235/9607C04B2235/9692
Inventor 钱林峰
Owner YIXING YUNBO TECH
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