Which Shade Lens Do I Make Use of For Welding?

When you start a welding job you ought to ought to begin with a shade lens that is too dark to see the weld zone. You can then drop to a lighter shade lens till the weld zone ends up being noticeable without going listed below the minimum demands of shading. It is smart to keep your eyes safeguarded as very well as possible, and to bear in mind that various welding operations need various filter staminas.
welding shade lens and number

Amperes


Amperes are another consider exactly what shade lens you ought to utilize. For approximately 30 amperes, you need to utilize shades ranked approximately 7. For 30 to 75 ampheres, utilize shades ranked 8 or 9. For 75 amperes and above, you ought to utilize a number 10 shade lens or greater.

Welding Lens Shade Numbers


One of the very first things to look at when purchasing a welding lens is its shade number. All excellent welding lenses-- regardless of shade number-- must obstruct out all UV and infrared wavelengths from the welding arc.

When welding, the shade number is really crucial for guaranteeing convenience. Some kinds of welding have much brighter arcs and need a lens which obstructs more light so the eyes will not be strained. Some types of welding need a lower shade number so it is much easier to see the weld puddle plainly.

The American Welding Society has actually developed minimum suggested shade numbers for particular kinds of welding. Keep in mind that the suggested shade number might differ depending upon the number of amps are being utilized.

Type of Welding Minimum Recommended Shade Number
Torch soldering 2
Torch brazing 3
Carbon arc welding 14
Light SMAW 7-8
Medium SMAW 10
Heavy SMAW 11
GMAW/FCAW 7-10
GTAW 8-10
Air carbon arc cutting 10-11
Light PAW 6-8
Medium PAW 10
Heavy PAW 11
Light PAC 8
Medium PAC 9
Heavy PAC 10

Welding Lens Colors


Welding lenses come in a wide range of colors. The color of the lens matters because certain colors will absorb and reflect certain types of light.

Welding
Lens Color
Color
of Light Absorbed
Optical
Effect
Yellow/Gold Lens Blue Increases,brightness,Good for working in low-light situations
Red/Pink
Lens
Green Increases,contrast,Easier to see small details
Green
Lens
Red
(Infrared)
Provides,low level of shade,Reduces glare
Blue Lens Orange
and bright lights
Reduces
glare and eye fatigue

Checking the Shade Lens


It is very important to test your shade lens making sure you have actually selected the best grade. To do this, position the lens in the welding helmet and browse it as if you were welding. To create sure the shade lens will certainly suffice, take a look at a bare light bulb which has actually been turned on. Make use of the next shade darker and repeat the test once again if you can see the light bulb's summary.

Shade Lens Safety


Never see the welding arc without adequate eye security. The very first function of the shade lens is to lessen the noticeable light that you will certainly translucent the welder's helmet so there is no glare, however the other function is to secure your eyes from hazardous infrared and ultraviolet radiation.