Large-specification resin ultrathin cutting blade and preparation method thereof

A cutting disc, large-size technology, applied in the field of large-scale resin ultra-thin cutting discs and its preparation, can solve the problems that restrict the use and development of large-diameter resin ultra-thin cutting discs, products are warped and scrapped, and maintain normal Work performance, reduce warping effect

Pending Publication Date: 2022-04-15
NINGBO DAHUA GRINDING WHEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of resin cutting discs with small diameter (diameter less than 200mm) should be less than 1.2mm, but the thickness of resin cutting discs with large diameter (diameter 200-405mm) can only be about 3mm. If the thickness is less than 3mm, the product will easily become warped. Unevenness leads to scrapping, which seriously restricts the use and development of large-diameter resin ultra-thin cutting discs, so it is imminent to provide a large-size resin ultra-thin cutting disc that can maintain normal working performance

Method used

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  • Large-specification resin ultrathin cutting blade and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1. Weigh and mix the cutting layer raw materials according to the following mass percentages, and set aside;

[0028] 11% cryolite, 6% phenolic resin solution, 13% phenolic resin powder, 20% brown corundum plating, 30% white corundum plating, and 20% white corundum plating.

[0029] S2. Put the mixed cutting layer raw materials into the mold, flatten the bottom cutting layer with brackets; the mold is divided into two sides, one side is concave at the center of the circle, and the other side is horizontal; the angle between the inner concave surface and the horizontal plane is 0.5°.

[0030] S3. Put a layer of untwisted binding reinforced mesh on the cutting layer, bake the soft mesh with a heating device, and then press the mesh;

[0031] S4, put the cutting layer raw material into the mesh of S3, flatten the top layer of cutting layer with a bracket, put it into the grommet and press it to form,

[0032] S5, then carry out hardening treatment: first keep warm at 50°...

Embodiment 2

[0035] S1. Weigh and mix the cutting layer raw materials according to the following mass percentages, and set aside;

[0036] 11% cryolite, 6% phenolic resin solution, 13% phenolic resin powder, 20% brown corundum plating, 30% white corundum plating, and 20% white corundum plating.

[0037] S2. Put the mixed cutting layer raw materials into the mold, flatten the bottom cutting layer with brackets; the mold is divided into two sides, one side is concave at the center of the circle, and the other side is horizontal; the angle between the inner concave surface and the horizontal plane is 0.25°.

[0038] S3. Put a layer of untwisted binding reinforced mesh on the cutting layer, bake the soft mesh with a heating device, and then press the mesh;

[0039] S4, put the cutting layer raw material into the mesh of S3, flatten the top layer of cutting layer with a bracket, put it into the grommet and press it to form,

[0040] S5, then carry out hardening treatment: first keep warm at 45...

Embodiment 3

[0043] S1. Weigh and mix the cutting layer raw materials according to the following mass percentages, and set aside;

[0044] 11% cryolite, 6% phenolic resin solution, 13% phenolic resin powder, 20% brown corundum plating, 30% white corundum plating, and 20% white corundum plating.

[0045] S2. Put the mixed cutting layer raw materials into the mold, flatten the bottom cutting layer with brackets; the mold is divided into two sides, one side is concave at the center of the circle, and the other side is horizontal; the angle between the inner concave surface and the horizontal plane is 0.75°.

[0046] S3. Put a layer of untwisted binding reinforced mesh on the cutting layer, bake the soft mesh with a heating device, and then press the mesh;

[0047] S4, put the cutting layer raw material into the mesh of S3, flatten the top layer of cutting layer with a bracket, put it into the grommet and press it to form,

[0048] S5, then carry out hardening treatment: first keep warm at 55...

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Abstract

The invention belongs to the technical field of grinding tool materials, and particularly relates to a large-specification resin ultrathin cutting blade. According to the large-specification resin ultra-thin cutting blade, the untwisted mesh is adopted, so that the stress generated by the cutting blade is greatly reduced; the flat structure of the cutting blade is changed, the thickness gradually decreases from the center to the edge to resist the stress generated in the grinding wheel, and reasonable hardening treatment and cooling are adopted, so that the normal working performance of the cutting blade is kept, and meanwhile, the problem that the cutting blade is scrapped due to uneven raised edges is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of abrasive materials, and in particular relates to a large-scale resin ultra-thin cutting sheet and a preparation method thereof. Background technique [0002] As the country advocates energy saving and emission reduction, reducing the loss of cutting workpieces and reducing the materials used for cutting sheets, the development trend of resin cutting sheets to ultra-thin is becoming more and more urgent. The thickness of resin cutting discs with small diameter (diameter less than 200mm) should be less than 1.2mm, but the thickness of resin cutting discs with large diameter (diameter 200-405mm) can only be about 3mm. If the thickness is less than 3mm, the product will easily become warped. Unevenness leads to scrapping, which seriously restricts the use and development of large-diameter resin ultra-thin cutting discs, so it is imminent to provide a large-size resin ultra-thin cutting disc that can maintain ...

Claims

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Application Information

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IPC IPC(8): B24D3/28B24D18/00
Inventor 刘钟唐吉輝张桂芝
Owner NINGBO DAHUA GRINDING WHEEL
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