Cutting machine cutting gas should be how to choose?

Believe everyone to 'cutting' the device must not unfamiliar, cutting machine is a machine a visibility is very high in recent years, and in recent years, the application range of the cutting machine is more and more widely, attracted the attention of many manufacturers, now there are a lot of cutting machine manufacturers began using cutting machine, here, let us together to know about the choice of gas cutting machine, the hope can help screen in front of you. Cutting machine usually have higher no-load voltage and working voltage. When using high ionization energy gas such as nitrogen, hydrogen or air, stable electric arc voltage needed for the body body will be higher. When the current is constant, the increase of the voltage means arc enthalpy and the improvement of cutting ability. If enthalpy increase, the jet diameter decreases, and the increased gas flow, cutting speed and the quality will be improved. 1, hydrogen is usually used as auxiliary gas mixed with other gases. Hydrogen is one of the more powerful gas to the cutting, the main benefit of hydrogen. Hydrogen can significantly improve the arc voltage, making hydrogen jet with high electrical heating value. Mixes with argon gas, hydrogen jet cutting ability is greatly increased. 2, oxygen can improve the cutting speed of low carbon steel. When using oxygen cutting, spiral wind pipe must be used with high temperature oxidation resistance of electrode, while protecting the electrode is not affected by the impact of the arc, so as to prolong the service life of the electrode. 3, nitrogen gas is a common work. Under the condition of high voltage, nitrogen arc than argon arc has better stability and higher jet energy. Even cutting the high viscosity of liquid metal materials, such as stainless steel and nickel base alloy, hang under the incision on the edge of the molten slag is very small. Nitrogen can be used alone, also can mix with other gas use. Nitrogen or air, for example, are usually used for automatic gas cutting work. The two gases has become the standard gas of high-speed cutting carbon steel. Nitrogen is sometimes used as the arc gas cutting machine.