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.
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 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.
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.
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.
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.
which lens filter grades are acceptable when arc welding
green
No, stacking welding lenses is not recommended as it can reduce visibility and distort the view. It is best to use a single lens with the appropriate shade for optimal protection and visibility while welding.
you will be ok if you waer a welding mask
Well, let me tell you, friend. When it comes to viewing a solar eclipse safely, make sure to use Welding Shade 14 lenses. They're specifically designed to protect your delicate eyes from the intense brightness of the sun during this rare celestial event. Remember, safety should always come first, it's important to take care of yourself while experiencing nature's beauty. Happy watching, my friend!
Emissions from welding can be heat, light, sparks, slag, and smoke. Each one can be hazardous. Work clothes, leather gloves, and boots can help protect you from heat, light, sparks, and slag. A welding helmet with the correct shade lens will protect your face and eyes from heat, light, sparks and some of the smoke. A means to remove the smoke is very important. Inhaling it can cause long term lung problems. The light can be especially dangerous to your eyes and anyone that is exposed to it. It can blind you.
10