Preheat CNC flame cutting machines muzzle velocity setting operations summarize the following six considerations. 1. Preheat and flame cutting power (acetylene flow, oxygen flow) should increase with the increase of the plate thickness; 2. Using diffusion-shaped tip and cutting oxygen curtain cutting nozzle plate thickness less than 20mm CNC cutting machine parts, Fire power should be larger in order to accelerate the leading edge of the incision is heated to ignite, resulting in a higher cutting speed; 3. When cutting thicker steel, mild carbonation flame flame is appropriate, in order to avoid melting the upper edge of the incision collapse, while allowing Waiyan longer; 4. single bevel cutting torch tip, because the slag was blown lateral incision, to supplement the heat, to increase the power of the flame; 5. Cutting higher carbon content or high content of alloying elements When the steel, because of its high ignition, preheat flame power to a large number; 6. LPG or natural gas as a fuel gas steel CNC cutting machine, because the flame temperature is low, long warm-up time; cut small parts and other required Preheat cut from frequent occasions, in order to improve cutting efficiency, the flame can be adjusted to oxidizing flame CNC cutting machine power, and then start cutting back to the neutral flame. CNC flame cutting machines regarded as a CNC equipment, CNC operation focuses on the word. With CNC machinery and equipment, will be more accurate and efficient CNC cutting machine will be higher, the effect is obvious. Flame for heat cutting equipment for flame cutting machines, is the use of gas with oxygen or oxygen gas with the metal material cutting a cutting device. The CNC flame cutting machine the traditional way and CNC flame cutting equipment automation technology, can be used for more than 6mm thickness of the carbon plate and Carbon plate cutting, given the current usage of the domestic steel market, CNC flame cutting still occupy relatively large market. CNC cutting machine power, Xundian County CNC cutting machine, CNC provided by Zhengzhou Yu Hing Yu Hing NC Products Limited. Zhengzhou Yu-NC Products Ltd. (www.yuxingsk.cn) strong, credible, in Zhengzhou, Henan EDM, wire cutting and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the jade-NC and you hand into the brilliant, for a better future!