3D curved glass efficient polishing disk and preparation method thereof

A technology of curved glass and polishing discs, which is applied in grinding/polishing equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of waste of resources, low polishing efficiency, and non-environmental protection. strong binding effect

Inactive Publication Date: 2017-05-24
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polishing disc can be applied to the polishing of curved glass, but it does not contain abrasives and polishing agents inside, and must rely on the assistance of polishing liquid to complete the polishing. The polishing efficiency is low, and it is not environmentally friendly, causing a lot of waste of resources and environmental pollution.

Method used

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  • 3D curved glass efficient polishing disk and preparation method thereof
  • 3D curved glass efficient polishing disk and preparation method thereof
  • 3D curved glass efficient polishing disk and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A. Epoxy resin E-51: 5%, epoxy resin E-31: 5%, polyurethane 45%, white corundum powder (W7) 14%, ferric oxide 15%, cerium oxide 14% by weight , Polyether polyol L-31: 2%.

[0027] B. Use a ball mill to mill white corundum, ferric oxide and cerium oxide for 1 hour, pass through a 180-mesh sieve, and set aside; stir the epoxy resin and polyurethane at high speed for 2 minutes according to the ratio, then add the powder mixture and stir for 5 minutes . The castable is injected into the mold coated with silicone grease release agent and cured. The curing process is 4 hours at 60°C, 4 hours at 80°C, and 4 hours at 100°C.

Embodiment 2

[0029] Epoxy resin E-44: 10%, polyurethane 55%, white corundum powder (W7) 10%, ferric oxide 10%, cerium oxide 13%, polyester polyol R-18: 2% by weight.

[0030] The preparation process is the same as in Example 1.

Embodiment 3

[0032] Take epoxy resin E-51: 10% by weight, polyurethane 45%, white corundum powder (W7) 14%, ferric oxide 15%, cerium oxide 14%, polyether polyol L-61: 1%, Polyester polyol R-68: 1%.

[0033] The preparation process is the same as in Example 1.

[0034] According to the material and hardness of the 3D curved glass, the formula is adjusted to prepare a soft foam elastic polishing disc with corresponding hardness. Polish the curved glass with the above-mentioned polishing disc, and use a Marsurf S2 roughness tester to detect the surface quality of the glass. It takes 30-40 seconds for the polishing disc to complete a polishing process, and the qualified rate of the processed 3D curved glass is over 95%. After being processed by the elastic polishing disk prepared by the present invention, the glass surface quality reaches the following accuracy requirements——R a = 0.02 µm.

[0035] The experimental data of the present invention are as follows:

[0036] 1. Study on the fo...

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Abstract

The invention discloses a 3D curved glass efficient polishing disk and a preparation method thereof. The 3D curved glass efficient polishing disk is prepared from the following raw materials of, by weight, 45%-55% of polyurethane, 5%-15% of epoxy resin, 10%-15% of white corundum micro powder (W7), 5%-15% of ferric oxide, 5%-15% of cerium oxide powder and 0.5%-2% of foaming agents. According to the weight ratio, mixing and casting molding are conducted, the ultra-precise polished 3D curved glass soft foam elastic polishing disk with the Shore Hardness of 30-70 C is obtained. During polishing, the polishing disk only needs cooling water, a polishing solution does not need to be used, and thus high efficiency and environmental protection are achieved. Curved glass polished by the 3D curved glass elastic polishing disk prepared through the preparation method has high surface evenness, smoothness, light transmittance and precision and reaches the application standards of top grade mobile phone shells and other electronic products, and the advantages of high polishing efficiency and high yield are also achieved.

Description

technical field [0001] The invention relates to an elastic polishing disk for polishing 3D curved glass with high efficiency and a preparation method thereof. Background technique [0002] With the rapid development of information technology, the application of 3D curved glass to the casing of information and digital products such as mobile phones and tablet computers has become more and more popular among information and digital product manufacturers. The demand for polishing tools for 3D curved glass also arises at the historic moment. [0003] The polishing process refers to the micro-removal of the processed surface by the mechanical action of fine abrasive particles to obtain a high-precision processed surface. At present, the polishing process of 3D curved glass at home and abroad mostly adopts the method of polishing with blanket or elastic polishing leather with the assistance of polishing liquid. In this polishing method, due to the low processing efficiency of fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/20B24D3/34B24D18/00
CPCB24D3/20B24D3/34B24D18/0009
Inventor 夏绍灵邹文俊张琳琪苗蔚郑红娟宋城彭进张书森
Owner HENAN UNIVERSITY OF TECHNOLOGY
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