A thermal lance is a powerful tool, but it’s frustrating when it keeps going out, slowing down your work. If you’re struggling with how to ignite a thermal lance quickly and keep it burning, this guide will help you ensure a stable and efficient operation.
Why Does a Thermal Lance Stops Burning?
Before diving into solutions, let’s understand the common causes:
- Insufficient Oxygen Supply – Low pressure or inconsistent flow disrupts combustion.
- Improper Ignition – Weak heat sources fail to ignite the lance properly.
- Moisture or Contaminants – Dirt, oil, or water in the lance can hinder combustion.
- Wind or Environmental Factors – Strong airflow may cause the flame to go out when making ignition in the beginning.
- Poorly Designed Inner Wire Structure - The wire arrangement inside Thermic Lance can also disrupt the fire. If the wires are too tight, airflow is blocked, stopping the fire. If too loose, wires may fall out, causing fire loss. Additionally, incorrect metal composition can have the same effect.
How to Keep a Thermal Lance Burning Continuously?
1. Ensure a Stable Oxygen Supply
A consistent oxygen supply is crucial for how to ignite a thermal lance quickly and keep it burning. Follow these tips:
- Set oxygen pressure between 8-11 bar (116-160 psi).
- Check for leaks or blockages in hoses and valves.
- Always use a high-quality oxygen source for an uninterrupted supply.
2. Use the Right Ignition Technique
- Utilize an oxy-acetylene torch for a powerful ignition source.
- Hold the torch at about 120 degree angle to the tip of the lance.
- Heat up the tip of Thermal Lance until it is red-hot within 10~15 seconds.
3. Keep the Thermal Lance Dry and Clean
- Store in a dry, dust-free environment.
- Wipe the lance before use to remove oil or debris.
- Avoid using a wet lance as moisture prevents proper combustion.
4. Shield from Wind and Environmental Factors
- Work in a low-wind environment or use a wind guard.
- Position the lance where air currents won’t disrupt the flame.
5. Don’t Cut Off Oxygen Abruptly
- Gradually reduce oxygen flow when finishing a cut.
- Avoid sudden shutdowns, as it can leave unburnt material that makes re-ignition difficult.
Video Demonstration for Thermic Lance Cutting
For a clearer understanding, watch this video demonstration:
1. Tips for Intensifying the Flame (Thermic Lance with Quick Coupling for Connection)
This video demonstrates the cutting process using a thermal lance with a quick coupling for connection. If the ignition technique is incorrect, the flame will burn out quickly.
2. Thermic Lance for Cutting, Melting, and Demolishing
This video illustrates the preparation steps before and during the thermal lance cutting process. Additionally, it showcases the applications of a thermal lance in cutting various materials.
If you want to understand the structure and dimensions of a thermal lance in detail to better prepare for cutting and prevent burning out during operation, download the document below.
Key Takeaways
To sum up, to keep your thermal lance burning efficiently, ensure you:
- Use a strong ignition source like an oxy-acetylene torch.
- Maintain proper oxygen flow within the recommended range.
- Keep the lance dry and clean to prevent combustion issues.
- Shield the lance from wind to avoid flame disruption.
By following these essential steps, you can prevent the flame of your thermal lance from going out and ensure a smooth cutting process.
Conclusion
By ensuring a steady oxygen supply, proper ignition technique, and clean storage, you can prevent your thermal lance from going out and operate smoothly.
Want more expert advice? Contact Daiwa Lance today to get the best thermal lance tips and tools for optimal performance!
