What is plasma cutting? Talking about the plasma cutting again.
- Plasma cutting is a metal indentation that uses heat from high temperature plasma arcs to melt processed work pieces.
- Plasma cutting is a processing method that uses the heat of a high-temperature plasma arc to melt the metal indentation of the processed work piece and discharge the melted metal chips with plasma momentum.
Plasma cutting application
Plasma cutting is widely used in automobiles, locomotives, pressure vessels, chemical machinery and other industries for metal cutting.
Plasma cutting gas
Commonly used plasma cutting plasma arc working gases are: air, argon, hydrogen, nitrogen and so on.
Plasma cutting cooling methods
Ordinary plasma cutting is air cooling plasma cutting, as well as water cooling plasma cutting.
Plasma cutting types
There are several types of plasma cutting methods, each offering unique advantages and applications.
1. Conventional Plasma Cutting
This is the most common type of plasma cutting, where an electric arc is formed between an electrode and the metal being cut. The arc ionizes the gas (often compressed air), turning it into plasma, which melts the metal and blows it away to create a clean cut.
2. CNC plasma cutting
CNC plasma cutting is a modern and highly efficient technology used to cut various types of metal with precision and speed. "CNC" stands for Computer Numerical Control, which means that the cutting process is guided by a computer program to ensure accuracy and consistency. Plasma cutting uses a high-temperature, ionized gas called plasma to melt through metal, creating clean and precise cuts.
3. High-Definition Plasma Cutting
High-definition plasma cutting uses a more focused and precise plasma arc. This method often incorporates advanced electronics and CNC (computer numerical control) technology to achieve very fine cuts with minimal dross and heat-affected zones. It's ideal for detailed work, enhancing productivity and quality in industrial fabrication.
4. Contact and Uncontact Plasma Cutting
In contact plasma cutting, the nozzle physically touches the workpiece during the cutting process. This technique helps stabilize the arc and improves cut quality, especially in thicker materials. It's often used in situations where maintaining consistent arc length is important.
Unlike contact cutting, the nozzle is kept slightly away from the workpiece, allowing the arc to "jump" the gap and cut through the metal. This approach is beneficial for thinner materials and delicate applications, offering greater flexibility and faster cutting speeds.
5. Underwater plasma cutting
Underwater CNC plasma cutting technology uses water as a cooling medium and protective environment, making it suitable for metal CNC cutting underwater or in humid environments. It not only ensures operational safety but also effectively reduces the spread of harmful gases, and is applicable to specialized industries such as shipbuilding and marine engineering, promoting the diversified application of the technology.
6. Fine Plasma Cutting
Fine plasma cutting is same High-Definition Plasma Cutting, a specialized technology to achieve very fine CNC cuts with minimal dross and heat-affected zones.
Plasma cutting system (components)
The plasma cutting system consists of a gas or air supply device, a water supply device, a power supply, and a cutting gun. The gas supply device is an air compressor larger than 1.5kw, and the airborne voltage of the cutting power supply is 350V-400V. Plasma cutting has a large cutting thickness, cutting flexibility, clip work parts simple and curve cutting.
Plasma cutting safety protection
1. The cutting part is carried out under water to avoid toxic fumes.
2. Avoid looking directly at the plasma arc, protect the eyes and prevent burns.
3. Pay attention to ventilation and wear multi-layer filter masks. Wear towels, gloves, etc. to prevent skin burns.
4. Plasma arc cutting produces high-frequency electromagnetic radiation.
