Large-diameter high-speed cutting and high-speed heavy load grinding resin wheel

A resin grinding wheel, heavy-duty technology, applied in the direction of grinding device, grinding/polishing equipment, abrasives, etc., can solve the problems of grinding wheel wear, easy ablation, fast abrasive grain falling off, etc., to improve service life and ball grinding toughness The effect of improving and improving wear resistance

Inactive Publication Date: 2010-04-21
SAINT-GOBAIN ABRASIVES (SHANGHAI) CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects that the existing grinding wheel is easy to be ablated, the abrasive grains fall off quickly, and the grinding wheel wears greatly during the working process under high temperature,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Example 1: Prepare materials according to the following components and amounts (weight percentage):

[0012] Cu plated calcined brown corundum F16 15

[0013] Cu plated calcined brown corundum F20 35

[0014] Cu plated calcined brown corundum F24 10

[0015] Thermal conductive filler Al powder 10

[0016] Active filler K 2 SiF 6 15

[0017] Phenolic resin liquid 6

[0018] Phenolic resin powder 9

[0019] The above-mentioned brown corundum abrasive is obtained after coating treatment and high-temperature calcination according to the existing process. According to the above-mentioned dosage ratio, the abrasives and fillers of different particle sizes are mixed uniformly, and then the phenolic resin solution is added and mixed, sieved, and then phenolic resin powder is added and mixed evenly. Sieved, placed for 8 to 48 hours, spread the material, add glass fiber mesh, and then press to shape on a 6000t press, and cure at 185°C to obtain the finished product.

Example Embodiment

[0020] Example 2: Prepare materials according to the following components and amounts (weight percentage):

[0021] Ni-plated calcined brown corundum F16 13

[0022] Ni-plated calcined brown corundum F20 40

[0023] Ni-plated calcined brown corundum F24 12

[0024] Thermally conductive filler SiC 12

[0025] Active filler Na 2 SiF 6 8

[0026] Phenolic resin liquid 5

[0027] Phenolic resin powder 10

[0028] The above-mentioned brown corundum abrasive is obtained after coating treatment and medium-temperature calcination according to the existing technology, and the manufacturing process of the grinding wheel is the same as in Example 1.

Example Embodiment

[0029] Example 3: Prepare materials according to the following components and dosage (weight percentage):

[0030] Fe plating 2 o 3 Calcined brown corundum F16 sub 16

[0031] Fe plating 2 o 3 Calcined brown corundum F20 38

[0032] Fe plating 2 o 3 Calcined brown corundum F24 18

[0033] Thermal conductive filler Fe powder 10

[0034] Active filler Al 2 S 3 8

[0035] Phenolic resin liquid 4

[0036] Phenolic resin powder 6

[0037] The above-mentioned brown corundum abrasive is obtained after coating treatment and medium-temperature calcination according to the existing technology, and the manufacturing process of the grinding wheel is the same as in Example 1.

[0038] According to the components and processes of Example 1, Example 2, and Example 3, large-diameter high-speed cutting resin grinding wheels with various specifications of Φ1000mm~Φ1800mm and thickness of 10mm~16mm can be made.

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Abstract

The invention discloses a large-diameter high-speed cutting and high-speed heavy load grinding resin wheel prepared from the following three components in percentage by weight: 60-72 percent of grinding materials, 18-25 percent of filling materials and 8-18 percent of resin, wherein the grinding materials in the wheel are film-coating calcined brown fused alumina, the filling materials comprise a heat conducting material and an active filling material, and the resin comprises a phenolic resin liquid and phenolic resin powder. The sand is produced by adopting the film-coating calcined brown fused alumina, which has good heat conduction property of metal plating, obviously strengthens the heat radiating effect of the wheel and prolongs the abrasive resistance and the service life of the wheel. In addition, the grinding materials have improved ball-milling flexibility after calcined, which enables the wheel to be durable and the property to be better. The wheel can be used for cutting hot-wire type steel with a diameter of over 100 mm or grinding the steel in a high-speed and heavy load way, and has long service life reaching 100-120min.

Description

technical field [0001] The invention relates to a cutting and grinding grinding wheel for machining, in particular to a resin grinding wheel for large-diameter high-speed cutting and high-speed heavy-load grinding. Background technique [0002] Large-diameter high-speed cutting resin grinding wheel refers to a glass fiber mesh reinforced resin cutting wheel with a diameter between Φ1000mm~Φ1800mm, a thickness of 10mm~16mm, and a working speed of 80m / s~120m / s. heat resistance. This grinding wheel is mainly used for the cutting of fixed-length linear materials produced by iron and steel enterprises. When cutting, the temperature of the steel is between 400°C and 600°C, and the cutting speed V is greater than or equal to 100m / s. Under such working conditions, the cutting grinding wheel should have the characteristics of high strength, good heat resistance, sharp cutting, good heat conduction and heat dissipation, and high durability of the grinding wheel. [0003] At present,...

Claims

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Application Information

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IPC IPC(8): B24D3/28B24D18/00
Inventor 黄敬民邹文俊
Owner SAINT-GOBAIN ABRASIVES (SHANGHAI) CO LTD
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