Conditions for oxygen cutting of stainless steel

Stainless steel oxygen cutting is the most widely used of all oxy-fuel cutting processes. It is a reliable, economical and highly productive process suitable for cutting many alloys including mild steel, stainless steel, aluminum, manganese and chrome molybdenum alloys.

Stainless steel oxygen cutting involves the oxidation of the base material with an oxygen torch. The cutting process takes place by heating the work piece to its ignition temperature and then introducing a stream of pure oxygen. The oxygen reacts with the stainless steel and raises its temperature to a level where it reacts with the oxygen to form Iron oxide (Fe2O3) and a Carbon-monoxide (CO) gas.

The cutting process works best when the material is preheated and then cut with the oxygen jet. This preheating increases the oxidization rate allowing for a cleaner and faster cut. Furthermore, higher cutting speeds can be achieved as the preheating reduces the area in which the thermal stress is present.

The accuracy of stainless steel oxygen cut parts is greatly affected by the material selection and cutting parameters that are used. It is important to understand the material properties and how they will affect the cutting process in order to get the best results. Many of the material properties that influence the cutting process include the alloying elements (Chromium, Molybdenum), oxidation rate, the type of torch and its transport pressure, the working temperature, the travel speed and gas flow rate. Detailed information about these properties should be obtained from the manufacturer prior to cutting in order to ensure uniform burning and high cutting accuracy.

In order to obtain the desired degree of accuracy and quality when cutting stainless steel with an oxygen torch, it is imperative that the cutters use the appropriate parameters for each application such as the torch velocity, distance, gas flow rate and preheating temperature. It is essential for the cutters to follow the recommended parameters to ensure that the desired accuracy and quality is achieved.

For stainless steel oxygen cutting, it is also important to use a clean cutting tip. This will help to reduce slag buildup, thereby improving the quality of the cut parts. It is also important to ensure that proper personal protective equipment is worn while cutting in order to reduce the risk of fire and health hazards.

In conclusion, stainless steel oxygen cutting is a highly efficient and cost-effective process when the right parameters are used. The cutters should have a thorough understanding of the material properties and cutting parameters in order to ensure the highest quality cuts. It is also essential that the right personal protective equipment is worn while cutting and a clean cutting tip is used to ensure the desired accuracy and quality of the parts.

Stainless steel oxygen cutting is a widely used cutting method. The cutting is done by injecting oxygen under high pressure and jetting heat with a mixture of oxygen and fuel. It can cut various materials with a thickness of 1mm~500mm.

The key to stainless steel oxygen cutting is preheating. Preheating causes the temperature of the workpiece to rise so that the cutting process is easy to implement. When preheating, it is necessary to heat the high-carbon steel and low-alloy steel evenly and slowly, typically to 600°C - 700°C; while stainless steel can reach 700°C - 800°C. The preheating is often done by oxy-fuel flame or electric spark preheating.

The optimal pressure and speed range for stainless steel oxygen cutting are generally between 0.15 and 0.35 MPa, and the cutting speed is generally between 0.5 m/min and 10 m/min. Oxygen purity is another important factor. The presence of moisture and impurities in the oxygen supply often results in poor cutting quality. It is preferable to use gas of 99% purity.

Finally, at the cutting site, the workplace should be well ventilated, and protective clothing, gloves, goggles and masks should be worn to protect against dust. All oxygen cylinders and equipment must comply with safety and hazard standards.

Stainless steel oxygen cutting requires the right conditions for a successful cutting process. When preheating, the temperature and time required should be appropriate. The optimal pressure, speed and oxygen purity should also be maintained in order to achieve the highest quality cutting results. Finally, the personnel and equipment must comply with safety standards and precautions should be taken to protect against dust at the work site.