The role and process of oxygen compressor applied to welding

Oxygen compressors are widely used in the supply of oxygen in the welding industry, mainly for gas welding, cutting and hot processing and other processes. It ensures a stable and efficient supply of oxygen and meets the needs of industrial equipment, so as to improve the quality of welding and cutting. The following is a detailed introduction to the role and working process of oxygen compressors in the welding industry.

I. The role of oxygen compressor in the welding industry

1. Oxygen-acetylene welding (gas welding)

In the gas welding process, oxygen is mixed with acetylene to produce a high-temperature flame (more than 3000°C), which is used for welding and heating metals. The oxygen compressor ensures a stable oxygen supply and improves the welding quality and efficiency.

2. Oxygen cutting

Oxygen cutting is used to cut carbon steel and other materials. High-purity oxygen blows out the molten metal after combustion, forming an incision. The purity and pressure of oxygen directly affect the cutting speed and incision quality.

3. Flame correction and heat treatment

In steel structure manufacturing, the workpiece is corrected or heat treated by high-temperature flame heating. Oxygen compressors can support long-term use and ensure stable gas supply.

4. Metallurgical industry auxiliary

In some pre-welding metallurgical processes, such as removing the oxide layer of the metal surface or promoting high-temperature combustion, oxygen compression systems are crucial.

II. The working process of oxygen compressor

The working principle and process of oxygen compressor in welding involve steps such as air compression, purification, oxygen production, storage and gas supply:

1. Air compression

Inhale air from the environment and pressurize the air through a multi-stage compressor so that it has enough pressure to enter the oxygen system.

2. Air purification

Compressed air removes impurities, oil and moisture through the cooler and drying filtration system to ensure the purity of the oxygen production process.

3. Oxygen production process (PSA or low-temperature separation technology)

• PSA (variable pressure adsorption technology): nitrogen is adsorbed through molecular sieve, leaving high-purity oxygen (90%~95%), which is suitable for general industrial welding needs.

• Low-temperature separation: cool the air to a liquefaction state, and separate high-purity oxygen (more than 99.5%) through fractionation, which is suitable for high-precision cutting process.

4. Oxygen storage

The prepared oxygen can be stored in a high-pressure oxygen cylinder or storage tank for use. These oxygen tanks are convenient for mobile devices or backup systems.

5. Oxygen delivery and distribution

The stored oxygen is transported to the welding equipment through pipes or high-pressure bottles. It is necessary to adjust the pressure and flow rate of gas supply according to the welding process.

III. Advantages of oxygen compressors in welding

1. Stable gas supply: reduce the trouble of frequent replacement of oxygen cylinders and ensure the continuity of long-term welding operations.

2. Improve efficiency: High-purity oxygen helps to accelerate welding and cutting speed and improve the quality of workpieces.

3. Cost reduction: On-site oxygenation reduces the cost of oxygen transportation and procurement, which is suitable for large-scale industrial sites.

4. High flexibility: The oxygen supply system can flexibly adjust the pressure and flow rate of oxygen according to the needs of different welding processes.

The application of oxygen compressors has greatly improved the efficiency and safety of the welding process. Whether it is daily gas welding operation, oxygen cutting in heavy industry, or flame correction in large-scale steel structure manufacturing, oxygen compressors play an indispensable role.

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