A kind of preparation method of ceramic electrician blade

A blade and electrical technology, applied in the field of preparation of ceramic electrical blades, can solve the problems of easy chipping, missing corners or fractures, and low toughness, and achieve good wear resistance, improved toughness, and high wear resistance.

Active Publication Date: 2019-05-07
安徽华天机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of low toughness, easy chipping, chipped corners or fractures in the existing ceramic knives, the present invention provides a method for preparing ceramic electrical blades. On the one hand, the present invention improves the composition of ceramic blanks and adjusts the The advanced sintering method essentially improves the performance of the blade. On the other hand, when processing the blade, a new process is adopted to reduce the defective rate

Method used

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  • A kind of preparation method of ceramic electrician blade

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Effect test

Embodiment 1

[0037] like figure 1 As shown, a ceramic electrician blade comprises a blade body 1 and a mounting hole 2, the blade body 1 is a parallelogram, and the acute angle α of the quadrilateral is 30° (that is, the angle between the front edge of the blade body 1 and the straight line where the edge of the blade is located), and the length of the blade body is 105mm , with a width of 18mm and a thickness of 0.5±0.03mm; the installation hole 2 is located at one end of the knife body 1, and the diameter of the installation hole 2 is 5.5mm; one side of the knife body 1 is provided with at least one breaking groove 3, and the cross section of the breaking groove 3 is V-shaped, the breaking groove 3 is parallel to the leading edge of the blade. When the tip of the blade is blunted or chipped, the blade can be broken along one of the breaking grooves to regenerate a new blade tip.

[0038] The processing method of the ceramic electrical blade in the present embodiment is:

[0039](1) Cera...

Embodiment 2

[0049] like figure 1 As shown, a ceramic electrician blade comprises a blade body 1 and a mounting hole 2, the blade body 1 is a parallelogram, and the acute angle α of the quadrilateral is 28° (that is, the angle between the front edge of the blade body 1 and the straight line where the edge of the blade is located), and the length of the blade body is 105mm , with a width of 12mm and a thickness of 0.5±0.03mm; the installation hole 2 is located at one end of the blade body 1, and the diameter of the installation hole 2 is 5.5mm; one side of the blade body 1 is provided with a breaking groove 3, and the cross section of the breaking groove 3 is V-shaped .

[0050] The processing method of the ceramic electrical blade in the present embodiment is:

[0051] (1) Ceramic blank sintering: pass zirconia powder and alumina powder through a 200-mesh sieve respectively, then mix and grind zirconia powder, alumina powder and binder in a mass ratio of 10:2.5:0.5, and use high temperatu...

Embodiment 3

[0060] A ceramic electrical blade, comprising a blade body 1 and a mounting hole 2, the blade body 1 is a parallelogram, the acute angle α of the quadrilateral is 40° (that is, the angle between the front edge of the blade body 1 and the straight line where the blade edge is located), the length of the blade body is 105mm, and the width is 18mm, the thickness is 0.6±0.03mm; the installation hole 2 is located at one end of the blade body 1, and the diameter of the installation hole 2 is 5.5mm; one side of the blade body 1 is provided with a breaking groove 3, and the cross section of the breaking groove 3 is V-shaped.

[0061] The processing method of the ceramic electrical blade in the present embodiment is:

[0062] (1) Ceramic blank sintering: Pass zirconia powder and alumina powder through a 200-mesh sieve respectively, then mix and grind zirconia powder, alumina powder and binder in a mass ratio of 10:2.15:0.5, and use high temperature It is sintered by isostatic pressing,...

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Abstract

The invention discloses a preparation method of a ceramic electrician blade, belonging to the field of preparation method of special blades. The processing method comprises the following steps: (1) sintering of a ceramic blank; (2) sharpening both sides of the knife; (3) cutting a breaking groove; (4) processing a big knife edge; (5) processing a small knife edge; (6) accurate grinding of the small knife edge; (7) checking the knife blade; (8) packaging, etc. In the invention, a hot isostatic pressing method is adopted for sintering the raw material, the best sintering technology is selected according to the material composition, and some substances in an adhesive can be fully carbonized at 1,400 DEG C; and the carbonized components can promote the whisker toughening of aluminum oxide, and the toughness of the blank is enhanced. In the invention, during blade processing, the processing depth of the breaking groove is strictly controlled according to the length, width and thickness of the blade, and the defective percentage of the product is reduced.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of special blades, and more specifically relates to a preparation method of ceramic electrical blades. Background technique [0002] The ceramic blade is a new type of blade made of high-tech nanotechnology. Its sharpness is more than ten times that of steel knives. Most of the ceramic knives on the market are processed with a nano-material "zirconia". Use zirconia + alumina powder to press 300 tons of heavy pressure with a mold at a high temperature of 2000 degrees to make a knife blank, and then polish it with diamonds and match it with a handle to make a finished ceramic knife. Although ceramic knives have incomparable advantages over traditional metal knives, their shortcomings are also difficult problems that cannot be overcome in the field at present. Because ceramic knives are all sintered from zirconia, their hardness is determined by the nature of their raw materials. 9, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B3/36B28B11/12C04B35/48C04B35/622C04B35/645C04B35/634C04B35/63
CPCB24B3/36B28B11/12C04B35/48C04B35/622C04B35/6303C04B35/63448C04B35/6455C04B2235/3217
Inventor 陶华陶鹏
Owner 安徽华天机械股份有限公司
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