The CNC flame cutting machine can use three main air sources.
1. Industrial acetylene: Acetylene is also called calcium carbide gas, and its quality is lighter than oxygen. It is colorless at normal temperature and pressure. It is a dangerous explosive gas. When the temperature exceeds 200-300 degrees, acetylene will undergo an exothermic polymerization, and the heat will be released and further polymerized. If the heat cannot be quickly eliminated during this process, the increase and acceleration of the polymerization will increase the temperature of the acetylene, resulting in a hazard. Industrial acetylene, which contains a large amount of impurities, such as hydrogen sulfide, phosphine, etc., has a strong pungent odor. Acetylene has the highest solubility in acetone, and bottled acetylene is stored and transported by its solubility in acetone.
2. Industrial oxygen: Oxygen is a colorless, odorless gas that cannot burn itself. It is a lively combustion-supporting gas. The oxygen tank has a maximum pressure of 150 atmospheres and a volume of 40 liters. A pressure reducer is provided at the outlet of the oxygen cylinder to reduce the high pressure oxygen to the required working pressure, about 3-4 atmospheres and to stabilize the pressure.
3. Propane: a colorless, odorless gas at room temperature. Flammable, explosive, and chemically stable. Decomposed to ethylene and ethane at 650 °C. Propane is mainly found in oil gas, natural gas, and refinery gas. Mixing with air can form an explosive mixture. In case of heat and open flame, there is a