Plane millstone filling system with self-sharpening function

A surface grinding disc and filling system technology is applied in the field of grinding parts preparation, which can solve the problems of poor edge performance of grinding discs, low grinding efficiency, affecting the processing quality of workpieces, etc., so as to avoid overall performance degradation and improve self-sharpening. , The effect of good compatibility between organic and inorganic phases

Inactive Publication Date: 2015-11-18
SUZHOU SAILI PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vitrified bond double-end grinding discs are generally made by bonding small round or regular hexagonal grinding blocks to the metal substrate. There is a certain gap between the small grinding blocks. If it is used to process small-sized workpieces (diameter less than 40mm), the gap between the grinding blocks must be filled, if not filled, it will easily lead to collision between the workpiece and the grinding block
At present, the material used to fill double-ended grinding discs is generally pure epoxy resin. Filling with pure epoxy resin will reduce the sharpness of the grinding disc to a certain extent, making the edge-out performance of the grinding disc poor, the grinding process efficiency is not high, and it is easy to produce grinding discs. Surface damage such as chip sticking or burns on the workpiece surface affects the processing quality of the workpiece, and the dressing interval of the grinding disc is relatively short, requiring frequent dressing of the grinding disc

Method used

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  • Plane millstone filling system with self-sharpening function
  • Plane millstone filling system with self-sharpening function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A self-sharpening flat grinding disc filling system, composed of the following raw materials in volume percentage:

[0047] Epoxy resin E5454%

[0048] Ethylenediamine 5%

[0049] Microcrystalline corundum 30%

[0050] Chromium trioxide 3%

[0051] Anhydrous ethanol 8%

[0052] The particle size of the above-mentioned microcrystalline corundum is 30-40 μm; the shape is non-equal-area shape, and the aspect ratio is 1.5-2.0; the particle size of dichromium trioxide is 70-90 μm.

[0053] The above filling system is used for filling the flat grinding disc, the steps are as follows:

[0054] The first step is to mix the materials. Put the epoxy resin, microcrystalline corundum, chromium trioxide, and absolute ethanol in the glass container in sequence according to the above volume percentages. After pre-mixing evenly, slowly add the curing agent ethylenediamine, adding Stir until well mixed;

[0055] The second step, casting, pour the mixed flat grinding disc filling s...

Embodiment 2

[0059] A self-sharpening flat grinding disc filling system, composed of the following raw materials in volume percentage:

[0060] Epoxy resin E5150%

[0061] Ethylenediamine 6%

[0062] Microcrystalline corundum 28%

[0063] Chromium trioxide 4%

[0064] Anhydrous ethanol 10%

[0065] The particle size of the microcrystalline corundum is 30-40 μm; the shape is non-equal area, and the aspect ratio is 1.5-2.0; the particle size of the dichromium trioxide is 70-90 μm.

[0066] According to the method of Example 1, the above-mentioned filling system was used to cure at room temperature for 24 hours to prepare a Ф1020 ceramic diamond flat grinding disc, and the properties of the processed cemented carbide cutter grains are shown in Table 1.

Embodiment 3

[0068] A self-sharpening flat grinding disc filling system, composed of the following raw materials in volume percentage:

[0069] Epoxy resin E4440%

[0070] Ethylenediamine 4%

[0071] Microcrystalline corundum 40%

[0072] Chromium trioxide 10%

[0073] Absolute ethanol 6%

[0074] The particle size of the microcrystalline corundum is 20-80 μm; the shape is non-equal-area shape, the aspect ratio is 1.5-2.0, and the particle size of the chromium trioxide is 70-90 μm.

[0075] According to the method of Example 1, the above-mentioned filling system was used to cure at room temperature for 12 hours to prepare a Ф840 ceramic diamond flat grinding disc, and the properties of the processed cemented carbide cutter grains are shown in Table 1.

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Abstract

The invention discloses a plane millstone filling system with a self-sharpening function. The plane millstone filling system is prepared from the following raw materials: epoxy resin, a curing agent, microcrystal fused alumina, chromium sesquioxide and absolute ethyl alcohol. An inorganic abrasive material in a filled layer has a micro-crushing function and can be automatically crushed during passivation in the milling process to generate a novel milling cutting edge, so that the self-sharpening performance of the filled layer is improved. When the plane millstone filling system is used for filling a gap of a plane millstone, the preparation process is simple, no special recruitments for raw materials are required, the leveling property is good during filling, and a filler can be in favorable contact with an abrasive block; the filled plane millstone is favorable in heat radiating capability, strength and rigidity, capable of favorably solving the problem of scrap and workpiece burning in the existing milling process, prolonging the finishing intervals and further increasing the milling efficiency and suitable for industrial production and application.

Description

technical field [0001] The invention relates to a grinding disc filling system, in particular to a plane grinding disc filling system with a self-sharpening function, and belongs to the technical field of grinding parts preparation. Background technique [0002] With the development of science and technology, CNC ultra-precision grinding machines, high-speed and high-precision crankshaft grinding machines and camshaft grinding machines, various high-precision and high-speed special grinding machines, etc., have become one of the key development areas in my country, and the improvement of processing efficiency is the development of CNC grinding machines. The important direction requires the cutting force of the grinding wheel to be good and sharp; it is also required to have good shape retention and continuous processing; at the same time, the grinding wheel is required to be resistant to high heat and strong extrusion. [0003] The double-end surface grinding machine is a hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K3/22
Inventor 陈卫东涂俊群王凯平
Owner SUZHOU SAILI PRECISION TOOLS
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