Working spectacles provided with aerogel thermal insulation protective film layers and preparation method of working spectacles

Abstract

The invention provides a pair of working spectacles provided with aerogel thermal insulation protective film layers and a preparation method of the working spectacles. The pair of working spectacles comprises glass lenses (1), aerogel film layers (2), resin lenses (3) and a metal fixing spectacle frame (4) and is characterized in that the aerogel film layers (2) are attached to the rear sides of the glass lenses (1), the resin lenses (3) are attached to the rear sides of the aerogel film layers (2), the attached components are clamped into the metal fixing spectacle frame (4) to be sealed and fixed, and a complete pair of working spectacles provided with the aerogel thermal insulation protective film layers is prepared. By means of the working spectacles, the operation time at the high temperature can be prolonged on a high-temperature site where an infrared heat source is used, and meanwhile, the hidden danger of eye injury due to overheating is avoided. The working spectacles have the characteristics of novel innovation, advanced technology, simplicity and convenience in preparation and high practicability.

Description

technical field [0001] The invention relates to the technical field of production and application of special glasses, in particular to work glasses with an airgel heat-insulating protective film layer and a manufacturing method thereof. Background technique [0002] In the welding operation of electric welders or production operations in close contact with high-temperature flames, such as in front of steelmaking furnaces or on the production line for processing products such as glass tubes and rods with flames, a large number of local high temperatures generated during flame combustion will affect the safety of workers. The face is baked, which is easy to cause fatigue and discomfort of the operator. In the high temperature season in summer or in a relatively sealed workplace, it may even cause heat stroke. Most of the existing protective glasses are made of ordinary transparent plastics. It is resistant to high temperature baking. At the same time, the thermal conductiv...

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Problems solved by technology

Moreover, the aerogel contains a large number of pores with a pore size less than 70nm. 70nm is the free path of the main components of nitrogen and oxygen in the air (the statistical average of the distance traveled by gas molecules in the time between two collisions), and is also composed of nanoparticles. , its contact area is very small, which further reduces the gaseous thermal conductivity

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