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Polycrystalline diamond composite sheet grinding fluid for aerospace and aviation

A polycrystalline diamond and aerospace technology, applied in the field of diamond processing, can solve the problems of high hardness and inability to grind, and achieve the effects of convenient cleaning, saving grinding costs and improving grinding efficiency

Inactive Publication Date: 2019-07-05
HENAN FAMOUS DIAMOND IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of its high hardness, most of the grinding fluids currently on the market cannot grind it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of polycrystalline diamond composite sheet lapping liquid for aerospace, described lapping liquid is made of the following raw materials by weight: 20 parts of polycrystalline diamond micropowder, 100 parts of deionized water, 4 parts of dispersant, 1 part of viscous agent and stirring A homogeneously composed suspension having a pH of 4. The particle size of the diamond micropowder is ≤2 microns.

[0014] Sulfate and quaternary ammonium salt are used as dispersant to disperse and adjust PH, and carboxymethylcellulose sodium (CMC-Na) is used as viscous agent to increase the viscosity of the suspension.

[0015] After testing, the viscosity of the suspension in this embodiment is 762cps, and the polycrystalline diamond micropowder has no obvious precipitation for a long time, and the distribution is uniform. For the processing of polycrystalline diamond composite sheets for aerospace with curved surfaces, the polishing pressure is 321g / cm2, the rotation speed of ...

Embodiment 2

[0017] A polycrystalline diamond composite sheet grinding liquid for aerospace, said grinding liquid is made of the following raw materials in parts by weight: 10 parts of polycrystalline diamond micropowder, 70 parts of deionized water, 2 parts of dispersant, 0.5 part of viscous agent and stirring A suspension of uniform composition, said suspension having a pH of 3. The particle size of the diamond micropowder is ≤2 microns.

[0018] Sulfate, quaternary ammonium salt, and PEO derivatives are used as dispersants to disperse and adjust PH, and carboxymethylcellulose sodium (CMC-Na) and hydroxypropyl starch are used as thickeners to increase the viscosity of the suspension.

[0019] After testing, the viscosity of the suspension in this embodiment is 843cps, and the polycrystalline diamond micropowder has no obvious precipitation for a long time, and the distribution is uniform. For the processing of polycrystalline diamond composite sheets for aerospace with curved surfaces, ...

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PUM

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Abstract

The invention discloses a polycrystalline diamond composite sheet grinding fluid for aerospace and aviation. The grinding fluid is suspension, which is composed of polycrystalline diamond micro powder, deionized water, a dispersant, and a thickening agent, and has a pH value of 0-5. The provided grinding fluid can be used to grind a polycrystalline diamond composite sheet with an arc surface. Theprovided grinding fluid is viscous suspension, and is capable of largely shortening the grinding time, improving the work efficiency, and reducing the grinding cost. A long-term stable grinding statecan be guaranteed; the processing degree of a polycrystalline diamond composite sheet can be directly judged by naked eyes, the washing is convenient, energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to a grinding fluid for polycrystalline diamond composite sheets for aerospace and belongs to the technical field of diamond processing. Background technique [0002] Polycrystalline diamond composite sheets for aerospace, such as missile shrouds, generally have a curved surface, and require high light transmittance and high finish. Therefore, the polycrystalline diamond composite sheets for aerospace use need to use abrasive fluid after deposition molding Grind. Because of its high hardness, most of the grinding fluids currently on the market cannot grind it. Contents of the invention [0003] In order to overcome the above defects, the invention provides a polycrystalline diamond composite lapping liquid for aerospace. [0004] In order to achieve the above object, the technical solution of the present invention is: a polycrystalline diamond composite sheet grinding liquid for aerospace, the grinding liquid is a suspension c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14C09G1/02
CPCC09G1/02C09K3/1463
Inventor 李花蕾薛飞李闯张怡虎张丰丰刘花王森林王庆丰李双霞李德柱
Owner HENAN FAMOUS DIAMOND IND CO LTD
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