How to choose a suitable cutting gun?

Select material type based on the type and thickness of the cutting material: Different metal materials have different melting points, thermal conductivity, and chemical properties. For example, cutting ordinary carbon steel and cutting stainless steel are different. For carbon steel, general oxygen gas cutting guns can be used; But for stainless steel, due to its alloy elements such as chromium and nickel, it has good oxidation ability and requires the selection of cutting guns with high flame temperature and strong oxidation ability. It may also need to assist with some special cutting processes, such as using iron powder assisted melting cutting

Material thickness: The cutting ability of the cutting gun is closely related to the material thickness. If you want to cut thinner metal materials (such as steel plates with a thickness less than 5 millimeters), you can choose a small cutting gun, which has a more concentrated flame and can accurately cut. For thicker metal materials (such as steel plates with a thickness greater than 100 millimeters), it is necessary to choose a large cutting gun and ensure sufficient supply of gas and oxygen to maintain sufficient flame energy to complete the cutting. For example, cutting a 200mm thick steel plate may require the use of acetylene as a gas cutting gun, as the flame temperature generated by acetylene combustion is high and can meet the requirements for cutting thick plates

Consider cutting speed and accuracy requirements

Cutting speed requirements: If there is a high demand for cutting speed in mass production, it is necessary to choose a cutting gun that can cut at a suitable speed.

. Generally speaking, cutting guns with high flame temperature and high oxygen flow rate have relatively fast cutting speeds. For example, when cutting a large number of steel plates to make ship components in a shipyard, in order to improve production efficiency, a cutting gun that uses propane as gas and has a good oxygen supply system will be chosen because propane burns relatively quickly and can improve cutting speed while protecting cutting quality

Cutting accuracy requirements: For some occasions that require precision suitable for cutting, such as mechanical parts processing, mold manufacturing, etc., it is necessary to choose a cutting gun with good flame stability and good cutting nozzle accuracy. This type of cutting gun can effectively control the direction and size of the flame, thereby achieving accurate cutting. For example, in mold manufacturing, when cutting the cavity of the mold, it is necessary to accurately control the cutting size. In this case, a cutting gun with a fine cutting nozzle and excellent gas regulation function can be selected

Gas selection and supply conditions

Gas types: Common gases include acetylene, propane, liquefied petroleum gas, etc.

. Acetylene has a high combustion temperature of over 3000 ℃ and good cutting ability, but it is flammable and explosive, requiring special storage and use conditions. Propane and liquefied petroleum gas are relatively safe and have a slightly lower combustion temperature, approximately between 2500-2800 ℃. If the workplace has high safety requirements and does not require high cutting speed, it may be considered to choose propane or liquefied petroleum gas cutting guns

Gas supply conditions: Consider whether the gas supply in the workplace is convenient. If there is a stable acetylene gas station supplying acetylene, an acetylene cutting gun can be used; If the gas supply is unstable or the workplace is relatively closed, for safety reasons, bottled propane or liquefied petroleum gas can be chosen as the gas cutting gun. At the same time, it is necessary to consider whether the pressure and flow rate of the gas can meet the working requirements of the cutting gun, and confirm that the cutting gun can work normally