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Glass cleavage method and glass material

A glass material, glass technology, applied in glass cutting devices, glass manufacturing equipment, manufacturing tools, etc.

Pending Publication Date: 2021-04-13
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it is only suitable for the method of bisecting relatively large sheet glass, and it is not suitable for the production of small cut workpieces of arbitrary shapes

Method used

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  • Glass cleavage method and glass material
  • Glass cleavage method and glass material
  • Glass cleavage method and glass material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0094] Example

[0095] Hereinafter, the present invention will be further described through examples. In addition, this invention is not limited to an Example.

[0096] [Ultrasonic cutting machine]

[0097] As the ultrasonic cutter, an ultrasonic small cutter USW-334 manufactured by Honda Electronics Co., Ltd. was used. The material of the ultrasonic vibrating blade is SKH51, ultrasonic vibration with a frequency of 22 kHz and an amplitude of 5 to 30 μm is applied, and the following cutting is performed.

[0098] [Production of cut glass material]

[0099] (Measurement of properties of optical glass)

[0100] Use optical glass-grade high-purity oxides, hydroxides, carbonates, nitrates, chlorides, fluorides, sulfates and other raw materials, weigh and mix the raw materials to obtain glasses A to D with Table 1 and Glass (glass E) having the components described in the section of the cut surface in Table 4 was used as a blending raw material. Next, put each blended raw ma...

Embodiment 1

[0103] Glass A of 10mm (thickness) × 10mm (width) × 100mm (length) is made into a cuboid of 10mm (thickness) × 10mm (width) × 20mm (length after cutting), and the difficulty of cutting is 0.50. In this state, the above-mentioned ultrasonic cutting machine is brought into contact with the part to be cut, and after the incision is made by ultrasonic vibration, the glass is cut by pressing the base material glass by hand so as to generate tensile stress in the incision part of the glass material, thereby applying pressure, Get slice A1.

Embodiment 2

[0105] The length after cutting was changed to 15 mm, and glass A of 10 mm (thickness) × 10 mm (width) × 100 mm (length) was cut in the same manner as in Example 1 with the degree of difficulty of cutting being 0.69 to obtain slice A2.

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Abstract

Provided are a method for cutting glass, with which it is possible to obtain a beautiful cut surface with high efficiency and high precision without any complicated device; and a glass material produced by the cutting method. The method for cutting glass includes a step of bringing an ultrasonic vibration blade of an ultrasonic cutter into contact with a portion of the glass to be cut; a step for ultrasonically vibrating the ultrasonic vibration blade; and a step in which the glass is cut into a cut while generating frictional heat in a linear shape using the ultrasonic waves.

Description

technical field [0001] The present invention relates to a method of cutting glass and a glass material cut thereby. Background technique [0002] In the past, as the method for cutting brittle materials such as glass into predetermined sizes, the following methods are known: 1) using a cutting blade embedded with abrasive grains harder than glass, such as a round blade embedded with diamond abrasive grains, A method of physically cutting the glass; 2) Cracks are generated in a part of the glass, and the cracks are expanded by applying pressure, that is, the glass is cut (cut) by using the stress generated on the glass greater than the bending strength of the glass. [0003] As a method of cutting glass by the latter cutting method, cutting by manual cutting is generally used. Manual cutting is a method that first presses the glass against a disc-shaped blade that is rotated by a motor, etc., physically creates a cut on the glass with a depth of less than 3 mm, and then appl...

Claims

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Application Information

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IPC IPC(8): C03B33/037C03B33/00
CPCC03B33/037C03B33/00
Inventor 堤康池西干男
Owner HOYA CORP