Why can steel velvet burn?

The anode and cathode of the battery contact with steel wool to form a closed circuit, which can basically be regarded as a pure heating circuit. In addition, we also need to consider the heat dissipation coefficient of air.

The steel velvet bought in the market is made of relatively fine low carbon steel, and its combustion belongs to physical combustion. Because of its low ignition point, it will form a liquid state when it meets high temperature, and it is easy to burn the skin or ignite the surrounding combustible materials when it is used.

Introduction:

1. To light the steel velvet, just take it out of the paper tube, tear it into about 15-60cm, overlap with 1-3 layer, pinch it slightly in the middle, then clamp it with an iron clip and shake it with a lighter. Although steel velvet will have a beautiful fireworks when it burns and shakes, its composition and nature are not fireworks.

2. There is no essential difference between the effect of playing with steel wool fireworks and the spark from shaking a burning wood.