Production process of high-toughness ceramic cutting tool

A ceramic cutting tool and production process technology, which is applied in the direction of manufacturing tools, grinding workpiece supports, metal processing equipment, etc., can solve the problems of low toughness, cracking during use or processing, and inability to clean, and achieves the effect of increasing toughness.

Active Publication Date: 2021-07-09
湖南泰鑫瓷业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ceramic knives have the characteristics of high hardness and good chemical stability, but the existing ceramic knives are not high in toughness and are prone to cracking during use or processing
At the same time, the existing ceramic knives cannot only sharpen and clean the sharpening positions in turn during the sharpening process, and cannot clean the other side while sharpening one side. At the same time, a large amount of water needs to be used in the whole sharpening process. resources for cooling and cleaning

Method used

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  • Production process of high-toughness ceramic cutting tool
  • Production process of high-toughness ceramic cutting tool
  • Production process of high-toughness ceramic cutting tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A production process of a high-toughness ceramic cutter, comprising the steps of:

[0038] Step 1: In parts by weight, weigh 15 parts of nano-silicon carbide, 18 parts of nano-titanium nitride, 10 parts of modified sepiolite powder, 180 parts of absolute ethanol, 6 parts of zirconia whiskers, aluminum hydroxide coated fluorine Calcium 12 parts, silane coupling agent KH5603 parts;

[0039] Step 2: Add zirconia whiskers and aluminum hydroxide-coated calcium fluoride to absolute ethanol, and stir at 200 r / min for 1 hour at room temperature to obtain a mixed slurry;

[0040] Step 3: Mix and ball mill nano-silicon carbide, nano-titanium nitride, modified sepiolite powder, and silane coupling agent KH560, pass through a 300-mesh sieve, and calcinate at 900°C for 0.8 hours to obtain mixed particles;

[0041] Step 4: Add the mixed particles into the mixed slurry and place it in a hot-press sintering furnace, heat-preserve and press-sinter at 1300°C and 25MPa for 2.5 hours, and...

Embodiment 2

[0048] A production process of a high-toughness ceramic cutter, comprising the steps of:

[0049]Step 1: In parts by weight, weigh 30 parts of nano-silicon carbide, 35 parts of nano-titanium nitride, 20 parts of modified sepiolite powder, 250 parts of absolute ethanol, 10 parts of zirconia whiskers, aluminum hydroxide coated fluorine Calcium 20 parts, silane coupling agent KH5605 parts;

[0050] Step 2: Add zirconia whiskers and aluminum hydroxide-coated calcium fluoride to absolute ethanol, and stir at 250 r / min for 2 hours at room temperature to obtain a mixed slurry;

[0051] Step 3: Mix nano-silicon carbide, nano-titanium nitride, modified sepiolite powder, and silane coupling agent KH560 into ball mills, pass through a 400-mesh sieve, and calcinate at 1000°C for 2 hours to obtain mixed particles;

[0052] Step 4: Add the mixed particles into the mixed slurry and place them in a hot-press sintering furnace, heat-preserve and sinter under the conditions of 1500°C and 50MPa...

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Abstract

The invention discloses a production process of a high-toughness ceramic cutter. By adding nano silicon carbide, nano titanium nitride, modified sepiolite powder, zirconium oxide whiskers and aluminum hydroxide coated calcium fluoride, the toughness, thermal shock resistance and bending strength of the produced ceramic cutting tool are effectively improved. According to GB/T4741-1999 measurement, the bending strength of the high-toughness ceramic cutting tool is 1000 to 1500 MPa. Meanwhile, the invention discloses machining equipment, and the machining equipment can polish one face of the ceramic cutter and clean the other face of the ceramic cutter at the same time. Water is sprayed on the surface of the abrasive belt while the grinding surface is ground, so that chippings can be prevented from splashing while overheating during grinding is prevented; whereas the cleaning of the other side is that sewage generated in the polishing process is recycled and sprayed on the surface of the ceramic cutting tool through filtration and atomization.

Description

technical field [0001] The invention relates to the production of ceramic knives, in particular to a production process of high-toughness ceramic knives. Background technique [0002] Ceramic knives have the characteristics of high hardness and good chemical stability, but the existing ceramic knives are not high in toughness, and are prone to cracking during use or processing. At the same time, the existing ceramic knives cannot only sharpen and clean the sharpening positions in turn during the sharpening process, and cannot clean the other side while sharpening one side. At the same time, a large amount of water needs to be used in the whole sharpening process. Resources are used for cooling and cleaning. Contents of the invention [0003] The purpose of the present invention is to provide a production process for high-toughness ceramic cutters, which solves the following technical problems: (1) coating with nano-silicon carbide, nano-titanium nitride, modified sepiolit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/58C04B35/622C04B35/645C04B35/80B24B55/00B24B47/22B24B41/06B24B41/00B24B3/36
CPCB24B3/36B24B41/005B24B41/06B24B47/22B24B55/00C04B35/58014C04B35/622C04B35/645C04B2235/3218C04B2235/349C04B2235/3826C04B2235/445C04B2235/5236C04B2235/6562C04B2235/6567C04B2235/96
Inventor 潘俊明周朝阳刘玉龙
Owner 湖南泰鑫瓷业有限公司
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