What are the reasons for the fracture of metal fibers during the combustion process of metal fiber burners?

During the combustion process of a metal fiber burner, the breakage of metal fibers may be caused by the following reasons:

1. High temperature environment and thermal stress. Metal fibers work at high temperatures, especially when the surface temperature approaches or exceeds their operating temperature limit (such as 1300 ℃), metal fibers may fracture due to thermal expansion, creep, or thermal fatigue. If the burner design is unreasonable, such as the gap between the metal fiber layer and the supporting structure, the metal fiber layer is prone to damage due to uneven thermal stress at high temperatures.

2. Material fatigue and aging.When metal fibers are subjected to thermal cycling and mechanical stress during long-term combustion of infrared gas burners, material fatigue and aging may occur, leading to a decrease in fiber strength and ultimately fracture.

3. Blocking and tempering risks. If the metal fiber layer is blocked, it will cause uneven airflow distribution, local overheating, and increase the risk of metal fiber fracture. In addition, blockage may also cause unsafe phenomena such as backfire and explosion, further exacerbating the damage to metal fibers.

4. Airflow erosion and mechanical damage. During combustion, high-speed airflow erosion of metal fibers may cause fiber wear or fracture. Especially in cases of uneven airflow distribution or the presence of eddies, the risk of mechanical damage will further increase.