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Large-pore CBN grinding wheel for machining sliding vanes of compressor

A technology of compressors and large pores, which is applied in metal processing equipment, manufacturing tools, abrasives, etc., can solve the problems of poor wear resistance of resin bonds, affecting the service life of grinding wheels, and roughness that cannot meet the standard, so as to reduce the number of dressings, The effect of improving production efficiency and reducing the frequency of manual wheel replacement

Inactive Publication Date: 2016-05-25
SUZHOU SAILI PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, resin-bonded CBN grinding wheels are usually used to process compressor slides. Although they can meet the requirements of processing efficiency, the wear resistance of resin bonds is poor, so frequent dressing is required during processing, which greatly affects the service life of grinding wheels.
The processing efficiency and service life of the vitrified bond meet the requirements, but the roughness cannot meet the standard, and the cost is too high

Method used

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  • Large-pore CBN grinding wheel for machining sliding vanes of compressor
  • Large-pore CBN grinding wheel for machining sliding vanes of compressor
  • Large-pore CBN grinding wheel for machining sliding vanes of compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see figure 1 Shown, a kind of large hole CBN emery wheel that is used for processing compressor slide vane, comprises substrate 1 and abrasive material layer 2, and the raw material composition and volume percentage of described abrasive material layer are, CBN abrasive material 20%, phenolic resin powder 48%, graphite Powder 12%, electrolytic copper powder 10%, alumina hollow ball 10%; among them, the CBN abrasive grain size is 200 / 230, and the crystal form is polycrystalline resin abrasive with nickel plating 30%.

[0025] The average particle size of the phenolic resin powder is 64 μm, the average particle size of the graphite powder is 65 μm, the average particle size of the electrolytic copper powder is 65 μm, and the average particle size of the aluminum oxide hollow spheres is 1.5-2.0 mm.

[0026] see figure 2 Shown, be used for the preparation method of the large hole CBN emery wheel of processing compressor vane, specifically comprise the following steps:

...

Embodiment 2

[0034] see figure 1 Shown, a kind of large hole CBN emery wheel that is used for processing compressor slide vane, comprises substrate 1 and abrasive material layer 2, and the raw material composition and volume percentage of described abrasive material layer are, CBN abrasive material 15%, phenolic resin powder 48%, graphite 13% copper powder, 9% electrolytic copper powder, and 15% aluminum oxide hollow ball; among them, the CBN abrasive particle size is 200 / 230, and the crystal form is polycrystalline resin abrasive with 30% nickel plating.

[0035] The average particle size of the phenolic resin powder is 64 μm, the average particle size of the graphite powder is 65 μm, the average particle size of the electrolytic copper powder is 65 μm, and the average particle size of the aluminum oxide hollow spheres is 1.5-2.0 mm.

[0036] see figure 2 Shown, be used for the preparation method of the large hole CBN emery wheel of processing compressor vane, specifically comprise the ...

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Abstract

The invention discloses a large-pore CBN grinding wheel for machining sliding vanes of a compressor. The large-pore CBN grinding wheel comprises a base body and a grinding material layer, wherein the grinding material layer comprises 15 to 20 percent of a CBN grinding material, 40 to 50 percent of phenolic resin powder, 12 to 18 percent of a solid lubricating material, 8 to 10 percent of a heat conducting material, and 10 to 15 percent of a pore forming material, wherein the pore forming materials adopts alumina hollow balls of which the average grain diameter is 1.5 to 2.0 mm. Compared with the conventional grinding wheel, the large-pore CBN grinding wheel for machining the sliding vanes has the advantages that the production efficiency is improved; the dressing time of the grinding wheel is prolonged; the manual replacing frequency is reduced; the shape preserving capability of the grinding wheel is improved; the dressing times of the grinding wheel during machining is reduced; the grinding wheel is highly sharp, so as to ensure the workpiece machining precision.

Description

technical field [0001] The invention belongs to the field of superabrasive grinding wheels, in particular to a CBN grinding wheel with large pores used for processing compressor slides, in particular to the manufacture of large pores in the grinding wheel. Background technique [0002] Grinding wheel is the main tool for grinding, which is a porous object composed of abrasive and bonding agent. CBN has the advantages of high hardness, high toughness, high temperature resistance, good thermal stability, and strong chemical inertness. Therefore, people often use CBN grinding wheels to process high manganese steel, high chromium, nickel, molybdenum alloy steel, and various cast irons. It solves the problem of cutting high-hardness and difficult-to-machine materials in various industries, improves work efficiency, greatly saves processing hours and electricity, and obtains huge economic benefits. [0003] Compressor vanes are usually made of stainless steel, high-speed steel an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/34B24D18/00
CPCB24D3/285B24D3/344B24D18/0009
Inventor 龚文王凯平涂俊群
Owner SUZHOU SAILI PRECISION TOOLS
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