A welding shield typically needs to have a shade number between 10 and 14, depending on the type of welding being performed and the intensity of the light emitted. For example, shade 10 is suitable for gas welding, while shades 11 to 14 are often recommended for MIG, TIG, and arc welding. The darker the shade, the more protection it provides against harmful UV and infrared radiation. Always refer to the manufacturer's guidelines for specific recommendations based on your welding process.
If by gas welding you mean-oxyacetylene welding. The difference is just that arc welding requires a darker shade of lens. When oxyfuel gas welding (OFW) usually a shade 5 lens is recommended. When arc welding, a minimum of shade 10 lens should be used (actually shade should be determined by amount of current used).
The amount/brightness of light given off by the process used. Shade #4 or 5 when cutting or welding using the Oxy-Fuel process is usually sufficient. Shade #9, 10, or 11 when stick, MIG, or TIG welding depending of the material being welded and Amperage used. Aluminum reflects more heat and light than most other metals so a darker shade may be called for. TIG welding produces less smoke letting more light escape the weld area, darker shade, possibly. A person whose eyes are sensitive to bright light would probably use a darker shade. I've used shades #9, 10, 11, and 12 when welding. The #12 lens when TIG welding on a ships' propeller using 300 to 400 Amps. Water cooled torch, 5/32" Tungsten. A lot of heat/light was reflected from the surface of the metal. Use as dark a shade that still allows you to see clearly. Remember, the higher the number the darker the shade.
Welding glass shade numbers are used to indicate the level of protection they provide against the brightness and intensity of welding arcs. Lower shade numbers are suitable for lower intensity welding processes, while higher shade numbers are needed for more intense welding operations to protect the eyes from harmful UV and infrared radiation.
The helmet holds the lens. Lenses come in different shades (darkness). Use the correct shade. Most welding applications call for a shade #10. TIG weldors usually use a shade #9. Plasma applications can call for a shade #11.
the welding amperage being used
The Type of welding you are doing, the brightness of the arc.
A darker helmet shade, compared to gas welding. A shade of 10 for 70 amps, it works up from there, or you could buy a auto-darkening hood which you can see out of, but when you strick the rod on the metal it darkens to the right shade for you to still see out of.
Oh well hello there, my friend! It's important to protect your eyes when viewing the eclipse. The best welding shade to use is rating 14 or higher, to keep those peepers safe and sound. Just let your eyes take in the natural beauty of the moment, like how a happy little cloud floats gently by the sun.
Yes, auto darkening welding helmets are safe to use for protecting your eyes during welding tasks. They automatically adjust the shade of the lens to protect your eyes from the bright light produced during welding, reducing the risk of eye damage.
Depends on multiple factors, amperage, the person and their eyesight, toleration to light. I would suggest you start at shade 10 and work downwards with shade 7 being as low as you go.
No on most helmets they are at a 5 shade then when turned on they will be a 3 shade lens. They will most likely have a greenish tint to them also.