Glass foreign bubble detecting method

Abstract

The invention relates to a method for detecting foreign matters and bobbles in glass. Firstly, after glass to be detected is laid or erected and is stably placed, a light source is arranged at one side of the glass to be detected; then rays of the light source are transmitted into the glass to be detected from a positive transdermal shadow angle at the side of the glass to be detected and are scanned by people through adopting a visual check method or adopting a linear scanning head of a computer; according to factors, i.e. whether the transmitted rays into the glass to be detected are blocked or changed into other transmission directions, the defects of the glass with foreign matters, bobbles, nickel purite, and the like can be detected.

Description

technical field [0001] The invention relates to a detection method in the field of glass manufacturing and processing industries, in particular to a detection method for glass foreign matter bubbles. Background technique [0002] Due to the characteristics of the glass processing and manufacturing process, the processed glass may have defects such as foreign matter or bubbles in the glass. In order to select high-quality glass without such defects for use or reprocessing, people have long been concerned about the defects in the glass. Bubbles, foreign matter, etc. are detected by being irradiated by a surface light source, and the method of frontal visual inspection is used. This detection method has low reliability, especially for the inspection of nickel sulfide in the glass. The reliability is even lower, because there is no good method , leading to the need for heat treatment to promote cracking of the glass that leaves the factory. Contents of the invention [0003] ...

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Problems solved by technology

[0002] Due to the characteristics of the glass processing and manufacturing process, the processed glass may have defects such as foreign matter or bubbles in the glass. In order to select high-quality glass without such defects for use or reprocessing, people have long been concerned about the defects in the glass. Bubbles, foreign matter, etc. are detected by being irradiated by a surface light source, and the method of frontal visual inspection is used. This detection method has low reliability, especially for the inspection of nickel sulfide in the glass. The reliability is even lower, because there is no good method , resulting in the need for heat treatment to facilitate cracking of the ex-factory glass

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