Precautions for buying an automatic light-changing welding mask

First of all, look at the production process of the appearance of the auto-variable welding helmet, and how the details can be done can reflect the company's production capacity and importance of the product. In addition, you can look at the incandescent light (lighter light is too weak, not necessarily a very sensitive response to him, LED flashlight can not make darkening mask). He will turn black when facing an incandescent lamp, and then you can adjust the knob on the side of the mask to adjust the darkness of the LCD screen, observe whether the darkness of the LCD screen is evenly changed across the screen (poor LCD screen, he is not uniform across the screen) Black, but in the middle of the LCD screen will be a black line, with the knob to adjust up and down or move left and right).

In addition, you can observe the edge of the LCD screen during welding to see if it will be found in the middle of the LCD screen will be black, the LCD screen edge will be a lot of light phenomenon, this phenomenon is because the LCD screen using a poor quality LCD screen production .

The poor quality LCD screen will not protect the eyes but will damage the eyesight and cause serious myopia or astigmatism. Please choose the welding mask carefully.

China Labor Insurance Network