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Grinding sheet with fluff structure and preparing method thereof

A technology of abrasive sheets and fluff, which is used in abrasive tools, grinding/polishing equipment, grinding devices, etc. It can solve the problems of low utilization rate of abrasive grains, adhesion and fixation, and inability to hold free abrasives, and achieve the best grinding effect.

Active Publication Date: 2015-05-06
宿迁市博成科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above two methods, there is no pattern structure on the surface of the grinding / polishing film, the utilization rate of abrasive grains is low, and the polishing efficiency is not high
The Chinese patent application whose publication number is CN 104139346A discloses an anti-clogging abrasive tool and its manufacturing method. The method forms protrusions with matrix distribution by coating slurry on a template with uniformly distributed cavities, and The substrate is attached to the surface of the slurry and solidified to form an abrasive tool, which makes the product have excellent anti-clogging and chip removal properties. However, this method forms an abrasive coating layer in the template, and the template with uniformly distributed cavities is more complicated to manufacture. And after the abrasive falls off, it will be lost along the groove part, and the free abrasive cannot be controlled
At the same time, the resin binder that falls off from the current film-based grinding / polishing film is easy to stick and fix on the surface of the workpiece, causing pollution to the surface of the workpiece

Method used

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  • Grinding sheet with fluff structure and preparing method thereof
  • Grinding sheet with fluff structure and preparing method thereof
  • Grinding sheet with fluff structure and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Paste the spiral hollow pattern sticker (width of the spiral strip: 3mm; spacing of the spiral strip: 4mm) on the pretreated substrate. The surface pretreatment of the substrate includes corona and surface grafting treatment;

[0037] (2) The substrate obtained in step (1) is coated with awesome-KL801A / WB801B two-component water-based flocking adhesive (Jiangsu Geili Adhesive Industry), and the two components are mixed in a ratio of 100:5, and the fluff (Average length of fluff: 0.5mm) Mechanically flocked and pressed onto the substrate, the substrate is pre-baked in an oven at 120°C for 5 minutes, and baked at 80°C for 20 minutes. After the fluff is cured, tear off the sticker;

[0038] (3) Add 120g of diamond micropowder (Zhengzhou Zhongyan Hi-Tech) with a particle size of 3 μm to a mixture of 60g of surface modifier KH570, water and ethanol, surface modifier: water: ethanol = 1:1:18, infrared Bake at 80°C for 10 hours under the lamp, and crush it with a crusher a...

Embodiment 2

[0042] The operation is basically the same as in Example 1, the difference is that the spiral hollow pattern sticker is changed into a radial hollow pattern sticker, the fluff band width 3mm, and the fluff band radius 120mm, the radial fluff structure abrasive sheet obtained is as follows image 3 shown.

Embodiment 3

[0044] The operation is basically the same as in Example 1, the difference is that the spiral hollow pattern sticker is changed into a mesh hollow pattern sticker, and the obtained mesh fluff structure grinding sheet is as follows: Figure 4 shown.

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Abstract

The invention discloses a grinding sheet with a fluff structure and a preparing method of the grinding sheet. The grinding sheet comprises a base material, an abrasive grain layer and a fluff layer. The preparing process comprises the steps that 1, a hollow pattern sticker is pasted on the pretreated base material; 2, the obtained base material is coated with flocking bonding agents, fluff adheres to the base material, and the sticker is torn off after the flocking bonding agents are dried and the fluff is cured; 3, surface modification treatment is carried out on an abrasive material; 4, the obtain abrasive material is added into a resin bond solution through a shearing dispersing machine and treated in a bubble removing mode; 5, the base material treated in the step 2 is coated with the obtained mixed material in a curtain mode, an obtained semi-finished product is cured in a vacuum oven, and the grinding sheet with the fluff structure is obtained; due to the fluff structure, holding force of the grinding sheet to adhesive grains is increased, the grinding and polishing efficiency is improved, and the effect for grinding and polishing an optical electron component is good; meanwhile, due to the surface fluff structure of the grinding sheet, chips are removed easily, and adhesion objects on the surface of a work-piece can be wiped easily.

Description

technical field [0001] The invention belongs to the field of precision grinding and polishing, and relates to a grinding and polishing sheet with a surface structure, in particular to an abrasive sheet with a fluffy structure and a preparation method thereof. Background technique [0002] Advanced ceramic materials have become one of the foundations for the development of high-precision machinery, aerospace, military, and optoelectronic information. With the continuous improvement of product performance, the modern optoelectronic information field has higher and higher requirements for processing accuracy and surface quality of advanced ceramic materials. The magnetic head of the next-generation computer hard disk requires surface roughness Ra≤0.2nm, and the magnetic disk requires surface scratch depth≤1nm and roughness Ra≤0.1nm. The surface of GaN thin film epitaxial growth substrates (mainly sapphire and SiC) requires <0.4nm rms and the processing damage layer is extrem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B37/16B24D18/00
CPCB24B37/16B24D18/0072
Inventor 周兆忠冯凯萍
Owner 宿迁市博成科技股份有限公司