High-strength composite ceramic tool and preparation method thereof

A composite ceramic, high-strength technology, applied in the field of high-strength composite ceramic tools and their preparation, can solve the problems of poor toughness and fracture resistance, and achieve the effects of improving fracture resistance, reducing volume shrinkage, and preventing particle agglomeration

Inactive Publication Date: 2017-03-22
FOSHAN LANTU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of poor toughness and fracture resistance of existing composite ceramic tools

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-strength composite ceramic cutter, mainly including the following raw materials in parts by weight: 60 parts of zirconia, 4 parts of scandium oxide, 1 part of chromium diboride, 3 parts of diatomite, 1 part of magnesium oxide, and 2 parts of borax , 0.5 part of tantalum disilicide, 0.12 part of titanium oxide, 0.02 part of lanthanum nitrate, 0.01 part of cerium chloride, 2 parts of dispersant, 0.2 part of binder, 0.2 part of tetramethylamine hydroxide, 13 parts of diethanolamine and 23 parts of ammonia water .

[0025] The raw materials also include 2 parts of yttrium oxide and 3 parts of alumina;

[0026] The dispersant is sodium edetate.

[0027] The binder is composed of magnesium sulfate, phosphoric acid, and boric acid in a weight ratio of 7:3:1.

[0028] The invention provides a method for preparing a high-strength composite ceramic cutter, comprising the following steps:

[0029] (1) Add zirconium oxide, yttrium oxide, aluminum oxide and sodium edetate ...

Embodiment 2

[0037] A high-strength composite ceramic cutter, mainly including the following raw materials in parts by weight: 75 parts of zirconia, 8 parts of scandium oxide, 5 parts of chromium diboride, 7 parts of diatomite, 1-7 parts of magnesium oxide, borax 4 parts, 3 parts of tantalum disilicide, 0.5 parts of titanium oxide, 0.10 parts of lanthanum nitrate, 0.5 parts of cerium chloride, 5 parts of dispersant, 5 parts of binder, 0.5 parts of tetramethylamine hydroxide, 17 parts of diethanolamine and ammonia water 28 servings.

[0038] The raw materials also include 6 parts of yttrium oxide and 6 parts of alumina;

[0039] The dispersant is hydroxymethylcellulose.

[0040] The binder is composed of magnesium sulfate, phosphoric acid, and boric acid in a weight ratio of 9:1:10.

[0041] The invention provides a method for preparing a high-strength composite ceramic cutter, comprising the following steps:

[0042] (1) Add zirconium oxide, yttrium oxide, aluminum oxide and hydroxymeth...

Embodiment 3

[0050] A high-strength composite ceramic cutter, mainly comprising the following raw materials in parts by weight: 67 parts of zirconia, 6 parts of scandium oxide, 3 parts of chromium diboride, 5 parts of diatomaceous earth, 4 parts of magnesium oxide, and 3 parts of borax , 1.7 parts of tantalum disilicide, 0.31 parts of titanium oxide, 0.06 parts of lanthanum nitrate, 0.25 parts of cerium chloride, 3.5 parts of dispersant, 2.6 parts of binder, 0.35 parts of tetramethylamine hydroxide, 15 parts of diethanolamine and 25 parts of ammonia water .

[0051] The raw materials also include 4 parts of yttrium oxide and 4.5 parts of alumina;

[0052] The dispersant is polyvinyl alcohol.

[0053] The binder is composed of magnesium sulfate, phosphoric acid, and boric acid in a weight ratio of 8:2:5.

[0054] The invention provides a method for preparing a high-strength composite ceramic cutter, comprising the following steps:

[0055] (1) Add zirconia, yttrium oxide, aluminum oxide an...

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PUM

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Abstract

The invention provides a high-strength composite ceramic tool and a preparation method thereof, and relates to the field of ceramic preparation. The high-strength composite ceramic tool mainly comprises, by weight, 60-75 parts of zirconium oxide, 4-8 parts of scandium oxide, 1-5 parts of diboride chromium, 3-7 parts of diatomite, 1-7 parts of magnesium oxide, 2-4 parts of borax, 0.5-3 parts of tantalum silicide, 0.12-0.5 part of titanium oxide, 0.02-0.10 part of lanthanum nitrate, 0.01-0.5 part of cerium chloride, 2-5 parts of dispersing agents, 0.2-5 parts of binding agents, 0.2-0.5 part of tetramethyl ammonium hydroxide, 13-17 parts of diethanol amine and 23-28 parts of ammonium hydroxide, and further comprises, by weight, 2-6 parts of yttrium oxide and 3-6 parts of aluminum oxide. The composite ceramic tool provided by the invention has the characteristics of high hardness, high corrosion resistance, good chemical stability, high abrasion resistance and the like, and the problem that existing composite ceramic tools are poor in toughness and fracture resistance is solved.

Description

technical field [0001] The invention belongs to the field of preparation of ceramic cutting tools, and in particular relates to a high-strength composite ceramic cutting tool and a preparation method thereof. Background technique [0002] Ceramic knives are developed using precision ceramics under high pressure, so they are called ceramic knives. [0003] With the development of the new technological revolution, it is required to continuously improve cutting productivity and reduce production costs, especially the development of CNC machine tools, which requires the development of new cutting tools with higher cutting speed and more wear resistance than cemented carbide tools. A variety of high-strength, high-hardness, corrosion-resistant, wear-resistant and high-temperature resistant new materials that are difficult to cut are increasing day by day. Carbide cutting tools are difficult to process many of these new materials. On the other hand, mineral resources are dwindli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/49C04B35/622C04B35/632C04B35/63C04B35/636C04B35/634C04B35/626
CPCC04B35/49C04B35/622C04B35/62605C04B35/62645C04B35/6303C04B35/6306C04B35/632C04B35/63416C04B35/6365C04B2235/3206C04B2235/3217C04B2235/3224C04B2235/3225C04B2235/3227C04B2235/3409C04B2235/3418C04B2235/3813C04B2235/3891C04B2235/444C04B2235/449C04B2235/60C04B2235/96
Inventor 张焕明
Owner FOSHAN LANTU TECH CO LTD
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