How is proper flame adjustment visually assessed?

Proper flame adjustment is visually assessed by observing the characteristics of the flame, particularly focusing on its stability and the shape of the inner cone. A well-adjusted oxyfuel flame appears steady and has a well-defined inner cone, which is crucial for effective cutting or welding. The inner cone signifies the point of optimal combustion, where the fuel and oxygen are ideally mixed, resulting in the highest temperature suitable for the task at hand.

A stable flame with a defined inner cone promotes efficient heating and cutting of the metal, providing control and precision. When the inner cone is clear and clearly separated from the outer envelope of the flame, it indicates that the flame has the correct balance of fuel and oxygen. This allows for a uniform heat application, leading to a cleaner cut or weld.

In contrast, flames that are characterized by brightness, excessive noise, smoke, or flickering often indicate improper adjustment, which can lead to inefficient cutting or welding and even damage to the equipment. Thus, a steady flame with a well-defined inner cone is the hallmark of proper flame adjustment in oxyfuel cutting.