What gas does a plasma cutting machine need?

12 августа 2024 года

The plasma cutting process requires the use of gas as the conductive medium and heat carrier of the plasma arc, and at the same time, the molten metal in the cut must be removed.

Gas used for plasma cutting:

Applicable industrial gases include argon, nitrogen, oxygen, air, water vapor and some mixed gases.

Characteristics of different industrial gases and machinable materials:

Argon: Argon is one of the most commonly used industrial gases because it has the characteristics of inertness, good stability, good conductivity, etc., and is suitable for cutting aluminum and its alloys.

Nitrogen and hydrogen: A mixture of nitrogen and hydrogen can be used to cut metal materials such as stainless steel, which can improve cutting quality and stability. The air plasma arc cutting method has poor surface quality when used to cut carbon steel, but the cutting speed is very fast. When cutting carbon steel or cast iron, adding oxygen to the air flow is more conducive to cutting.

The selection of different industrial gases varies in the following aspects:

1. Different cutting materials: Different materials require different gases.

For example, argon is suitable for cutting aluminum and its alloys, nitrogen and hydrogen mixed gas is suitable for cutting stainless steel and other metal materials, and air plasma arc cutting method has poor surface quality when used to cut carbon steel, but the cutting speed is very fast.

2. Requirements for cutting quality: Different industrial gases have different effects on cutting quality.

For example, argon gas has good incision quality when cutting aluminum and its alloys, but the cutting speed is slow; air plasma arc cutting method has poor incision quality when used to cut carbon steel, but the cutting speed is very fast.

3. Requirements for cutting speed: Different industrial gases have different effects on cutting speed.

For example, air plasma arc cutting method has a fast cutting speed when used to cut carbon steel, but the incision quality is poor; nitrogen and hydrogen mixed gas is suitable for cutting stainless steel and other metal materials, which can improve cutting quality and stability, but the cutting speed is slow.

During the plasma cutting process, it is necessary to control gas purity, flow rate and pressure and other parameters. The purity of the gas is required to be high, generally required to be above 99.9%, to ensure the stability and cutting quality of the plasma arc. The control of flow and pressure is also very important. Too large or too small will affect the stability and cutting quality of the plasma arc. Generally speaking, the control of flow and pressure needs to be adjusted according to the specific process requirements to achieve a good cutting effect.

Advantages of машина плазменной резки:

1. Automatically complete Chinese/English conversion.

2. The software is rich in functions and has practical flame/plasma cutting processes.

3. It can be started from any program segment, the cutting gun can be flexibly adjusted, and multiple processing modes can be selected at any position.

4. U disk reads programs and software upgrades.

5. There are 24 kinds of libraries with simple discharge function, which is easy to use.

6. It has two modes of setting arc pressure and sampling arc pressure,

intelligent dual-speed positioning, which can track the cutting speed, up to 12m/min.

7.Оснащен зажимами против столкновений для эффективной защиты режущего пистолета и уязвимых частей.

Application materials of plasma cutting:

Advertising industry, handicraft cutting, various metal materials, such as carbon steel, stainless steel, alloy steel, spring steel, titanium and other metal plates and pipes.

Mechanical and electrical product shell processing, advertising signs, handicrafts, iron art gardens, automobile manufacturing, shipbuilding, electrical accessories, plate cutting.