Cutting Speed
Fast Cutting speed
When the cutting parameters are been set and the cutting speed is too fast it may cause the following consequences:
1. Impossible to penetrate, with sparks spraying
2. Some areas can be penetrated, but some cannot
3. The entire section is relatively coarse, but it produces no melting stains
4. Cutting section appears in slanted bars, with melting stains on the lower part.
Slow Cutting speed
1. It will cause super fusion, and the cut surface is relatively coarse
2. Cutting joint gets widened, and the entire sharp corner is melted
3. Cutting efficiency is influenced
Determine whether to speed up or down feeding based on cutting sparks (targeted at cutting with low-pressure oxygen)
1. Spark diffuses from up to down
2. The inclining backward of sparks indicates too high cutting speed
3. Sparks are not dispersed and in a small number gather together, which indicates slow speed