Process for producing glass product

A manufacturing method and technology of glass products, applied in the direction of cleaning methods using liquids, manufacturing tools, cleaning methods and utensils, etc., can solve problems such as obtaining cerium oxide abrasive grains

Inactive Publication Date: 2014-04-23
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the increase in the price of rare earth oxides in recent years, ceria abrasive grains ca

Method used

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  • Process for producing glass product
  • Process for producing glass product

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Experimental program
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Embodiment

[0049] Examples of the present invention are specifically described below, but the present invention is not limited to these Examples.

[0050] (1) Study on the solubility of manganese trioxide abrasive grains

[0051] It is considered that an aqueous solution in which dimanganese trioxide abrasive grains are dissolved can be used as a cleaning solution for an abrasive containing dimanganese trioxide abrasive grains. Therefore, as a preliminary study, a dissolution test of dimanganese trioxide abrasive grains (average particle diameter: 1 μmφ) was carried out. The average particle diameter of the dimanganese trioxide abrasive grains was measured with a laser diffraction particle size distribution analyzer (MT3300EX-II manufactured by Nikkiso).

[0052] After adding acid to achieve the composition shown in Table 1, various aqueous solutions with pH adjusted were prepared. 0.04 g of dimanganese trioxide abrasive grains were added to 40 ml of various aqueous solutions, and shak...

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Abstract

The purpose of the present invention is to provide a process for glass product production which includes, after the step of polishing a glass using a polishing agent that contains dimanganese trioxide abrasive grains, the step of effectively removing the polishing agent which contains dimanganese trioxide abrasive grains and has adhered to the glass. The process for producing a glass product comprises a polishing step in which a glass is polished using a polishing agent that contains dimanganese trioxide abrasive grains and a cleaning step in which the glass is thereafter cleaned using a cleaning fluid, wherein the cleaning fluid is a cleaning fluid containing ascorbic acid and/or erythorbic acid.

Description

technical field [0001] The present invention relates to a method for the manufacture of glass articles. Background technique [0002] As an abrasive suitable for glass polishing, abrasive grains mainly composed of cerium oxide (hereinafter referred to as ceria abrasive grains) are widely used. However, due to the increase in the price of rare earth oxides in recent years, ceria abrasive grains cannot be obtained at the conventional cost, and therefore, researches on alternative materials thereof have been actively conducted. As alternative materials, various oxides such as zirconia or alumina have been investigated. [0003] In recent years, as abrasive grains used in glass substrate processing, it is known that dimanganese trioxide abrasive grains, which are manganese oxides, exhibit abrasive properties close to those of ceria abrasive grains, although under specific conditions. Therefore, it has attracted attention (Non-Patent Document 1). Among manganese oxides, there ...

Claims

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Application Information

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IPC IPC(8): B24B37/00B08B3/08B08B11/04C09K3/14
CPCC09K3/1463C03C23/0075B24B37/04C09K3/1409
Inventor 宫谷克明
Owner ASAHI GLASS CO LTD
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