Safety goggles are a kind of glasses that play a special role. The glasses required are different in different occasions.Such as surgical glasses used in hospitals,Electric weldingWelding glasses, laser protective glasses in laser engraving, etc.Protective glassesAlso called in industrial productionLabor protectionGlasses, divided into safety goggles andProtective maskTwo categories.
1. Anti solid debrisProtective glassesIt is mainly used to prevent mechanical damage to eyes caused by metal or gravel debris.Eyeglasses andSpectacle frameThe structure shall be firm and anti strike.The frame is equipped with a blind around it, and there should be ventilation holes on it.Optional protective lensTempered glass, adhesive glass or copper wire mesh goggles.
2. Protective glasses against chemical solutions are mainly used to prevent chemical damage to eyes caused by irritating or corrosive solutions.Ordinary flat lens can be selected, and the frame should be covered to prevent the solution from splashing in.It is usually used in laboratories, hospitals and other placesMedical glassesIt is universal.
3. Anti radiation protective glasses are used to protect eyes from the harm of too strong ultraviolet ray and other radiation lines.The lens can reflect or absorb radiation, but can penetrate certainvisible lightOfSpecial glassmake.The lens is plated with bright chromium, nickel, mercury or silver metal film, which can reflect radiation;Blue lenses absorb infrared rays, yellow and green lenses simultaneously absorb ultraviolet rays and infrared rays, and colorless lead containing lenses absorbX-rayandGamma ray。For example, commonWelding glasses, for lensesTransmittanceThe requirements are relatively low, so the lens color is mostly ink color;As the name implies, laser protective glasses can prevent laser radiation on glasses, so they have high requirements for lenses, such as the selection of light sourcesAttenuation rate, photo reaction timeoptical density, light transmission effect, etc. Different nanometer (nm) lasers need different waveband lenses.
Applicable occasions
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Surgical glasses for hospitals,Electric weldingWelding glasses, laser protective glasses in laser engraving, etc.
effect
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Protect eyes and face from ultraviolet, infrared, microwave and other electromagnetic wave radiation, dust, smoke, metal and gravel debris, and chemical solution sputtering damage.
Glasses selection
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There are many types of safety goggles, including dust-proof glassesAnti shock glasses, chemical resistant glasses andray radiationGlasses, etc.The lenses of the first three glasses appear to be colorless glass, but in fact, due to different protective effects, the characteristics of the lenses are obviously different.
Some workers engaged in industrial production need to wear glasses for operation. Wearing such glasses is not for decoration and fashion, but to protect their eyes from harmful factors.Therefore, such glasses are called safety goggles.
Engaged in electric weldingGas welding、steel-makingWorkers blowing glass shall wear anti arc radiation glasses.However, the lenses of anti arc radiation glasses have different colors, which are designed according to different requirements. The selection should be based on the intensity of arc light during operation.Strong arc light and deep color;On the contrary, light colored lenses should be selected.If the arc light is strong enough to wear light colored protective glasses, some infrared rays will stimulate and damage the eyes through the lenses, which may cause long-term problemsOccupational cataract；On the contrary, if the arc light is weak and dark safety goggles are worn for a long time, the vision will be greatly reduced.
Therefore, every worker who needs to wear protective glasses for operation should understand the harmful factors of their own operating environment, wear appropriate safety goggles, and not wear them indiscriminately.
Dustproof glasses are used in the dusty environment, and the requirements for the fastness of general lenses are not high. Whether the eye mask type or the flat mirror type, the general flat light is usedGlass lensesmake.andAnti shock glassesIt is used to prevent small particles from flying out from penetrating the eyes. Its lenses are required to be impact resistant. For example, lathe workers, sanders and stone hammers should wear anti impact glasses. If these workers wear ordinary dust-proof glasses, then iron sand and gravel will be broken when flying into the glasses, and the eyes will be more damaged.The lenses of chemical resistant glasses are resistant to acid and alkali and corrosion, which is not available in other glasses.
Precautions
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1. SelectedGogglesThe products that have passed the inspection of the product inspection agency shall be selected;
2. The width and size of goggles should be suitable for the user's face shape;
3. The lens is worn rough and the lens frame is damaged, which will affect the operator's vision, so it should be replaced in time;
4. The goggles shall be used by specially assigned persons to prevent eye diseases;
5. The filter and protective film of welding goggles shall be selected and replaced according to the requirements of the specified operation;
6. Prevent heavy fall and pressure, and prevent hard objects from rubbing lenses and masks.
