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Diamond grinding wheel and manufacturing method thereof

A diamond grinding wheel and diamond technology, which is applied in bonded grinding wheels, metal processing equipment, manufacturing tools, etc., can solve the problems of difficult balance between grinding efficiency and machining accuracy, and achieve hard to burn workpieces, high grinding efficiency, and good surface finish Effect

Active Publication Date: 2016-05-18
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a diamond grinding wheel, so as to solve the problem in the prior art that it is difficult to balance grinding efficiency and machining accuracy when chamfering silicon carbide ceramic sealing rings

Method used

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  • Diamond grinding wheel and manufacturing method thereof
  • Diamond grinding wheel and manufacturing method thereof
  • Diamond grinding wheel and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The diamond grinding wheel of the present embodiment, as figure 1 As shown, it includes a grinding wheel base 2 and an abrasive layer 1 attached to the grinding wheel base 2; the grinding wheel base is a cast aluminum base with a tensile strength ≥ 150Mpa; the grinding wheel base 2 includes a grinding part and is integrally formed with the grinding part The mounting part, the grinding part has a conical protrusion, and the abrasive layer 1 is arranged on the outer conical surface.

[0029] The diamond grinding wheel of the present embodiment is a rough grinding wheel, and the CN56 type nickel-plated diamond abrasive of 120# is selected as the diamond abrasive, and is made up of the following components in volume percentage: 20% of diamond abrasive, 45% of phenolic resin, 10% of carbonyl iron, cryolite 10%, graphite 15%.

[0030] The preparation method of the diamond grinding wheel of the present embodiment may further comprise the steps:

[0031] 1) Diamond abrasives,...

Embodiment 2

[0034]The present embodiment diamond grinding wheel, as figure 2 As shown, it includes a grinding wheel base 2 and an abrasive layer 1 attached to the grinding wheel base 2; the grinding wheel base is a cast aluminum base with a tensile strength ≥ 150Mpa; the grinding wheel base 2 includes a grinding part and a mounting part, and the grinding wheel An inverted conical groove is arranged on the cutting part, and the abrasive layer 1 is arranged on the inner surface of the inverted conical groove.

[0035] The diamond grinding wheel of the present embodiment is a coarse grinding wheel, and the CN56 type nickel-plated diamond abrasive of diamond abrasive selection 200# is made up of the following components of volume percentage: diamond abrasive 21%, phenolic resin 46%, carbonyl iron 10%, cryolite 8%, graphite 15%.

[0036] The preparation method of the diamond grinding wheel of the present embodiment may further comprise the steps:

[0037] 1) Diamond abrasives, phenolic resi...

Embodiment 3～8

[0040] The diamond grinding wheels of Examples 3-8 are coarse grinding wheels, and the composition and the shape of the grinding part are shown in Table 1.

[0041] The composition and the shape of the grinding part of the diamond grinding wheel used for rough grinding of Table 1 Examples 3 to 8

[0042]

[0043] The preparation method of the diamond grinding wheel of Examples 3-5 is the same as that of Example 1; the preparation method of the diamond grinding wheel of Examples 6-8 is the same as that of Example 2.

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Abstract

The invention discloses a diamond grinding wheel and a manufacturing method thereof. The diamond grinding wheel comprises a grinding wheel base body and an abrasive layer attached to the grinding wheel base body. The abrasive layer is composed of, by volume percent, 20-30% of diamond abrasive, 40-50% of phenolic resin, 5-15% of carbonyl iron, 5-15% of cryolite and 10-20% of graphite. Due to the fact that diamond, a bonding agent and functional filler are reasonably selected and all components are scientifically proportioned, a grinding wheel block conducts grinding sharply, and when the grinding wheel block is used for grinding silicon carbide ceramic materials, the high grinding efficiency is achieved; and when the grinding wheel block is applied to machining of chamfers of silicon carbide sealing rings, the surface smoothness of the chamfers can reach Ra 0.1, and the chamfers R are smaller than or equal to 0.05 mm. The grinding wheel of a specific conical structure is adopted and can be installed on a common grinding machine to directly conduct grinding and forming machining on the chamfers of the silicon carbide sealing rings, the machining efficiency is high, the angle of the grinding machine does not need to be adjusted, and consistency of the machined chamfers is good.

Description

technical field [0001] The invention belongs to the field of superhard materials and products in mechanical processing, and in particular relates to a diamond grinding wheel for chamfering grinding of silicon carbide ceramic material seal rings and a preparation method thereof. Background technique [0002] Silicon carbide (SiC) ceramics is a new type of ceramic material with excellent mechanical properties, thermal properties and chemical properties. Due to its high strength, high hardness, corrosion resistance, high temperature resistance and other properties, it is widely used in petrochemical, metallurgical machinery, aerospace, automobile, steel and other fields, especially in thermal engineering and mechanical sealing industries. Application performance and development potential. Sintered silicon carbide (SiC) ceramic material sealing ring has the characteristics of high strength, high toughness and low creep, and also has good corrosion resistance, wear resistance, o...

Claims

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Application Information

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IPC IPC(8): B24D7/18B24D3/28B24D3/34B24D18/00
CPCB24D3/285B24D3/346B24D7/18B24D18/0009
Inventor 叶腾飞李少杰
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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