The effect of using auxiliary gas is:
1. Air (relatively the lowest cost)
Air can be provided directly by the air compressor, so the price is relative cheaper. When cutting metal, the compressed air can reduce the oxide film to a certain extent. Generally, it is used when the sheet is relatively thin and the requirements for the cutting surface are not precision. Among them, the compressed air is widely used in industries such as sheet metal, chassis, cabinets, and kitchen utensils. The cut end will turn yellow.
2. Oxygen
Oxygen mainly plays a combustion-supporting role, and the use of oxygen reaction heat greatly improves cutting efficiency. Oxygen is suitable for thick plate cutting, high speed cutting and very thin plate cutting. It is mainly suitable for cutting large and thick carbon steel plates. The end face of the incision is black or dark yellow.
(Note: Oxygen is combustion-supporting gas, when running at high speed, is prone to slag and is not easy to remove, resulting in the speed cannot be improved, so adjust the power to the range that can match the current speed.
For copper cutting, have to use oxygen for cutting, and air and nitrogen cannot be used for cutting. )
3. Nitrogen
Some metals use nitrogen to prevent the oxidation of the cutting end of the sheet and the sheet from burning (which is easy to occur when the sheet is thicker). Nitrogen gas can be selected for plates that have high requirements on the cutting end surface and plates that do not require secondary treatment, such as some decoration industries, special parts for aerospace, etc. The end face of the incision is whitish.
4. Argon (relatively the highest cost)
If you want to prevent sheet oxidation and nitriding, The argon is the best choice, but the corresponding cost is the highest. Mainly suitable for cutting titanium and titanium alloys. Cut ends whitish
Post time: Sep-10-2024
