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X
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C
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Cathode
The term cathode is used because of the negative charge of the „non-fusing electrode“ of the plasma torch. Occasionally, it is also called "electrode“.
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CNC
The abbreviation CNC stands for "Computerized Numerical Control" and is an electronic method for the regulation and control of machine tools or also guiding systems.
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Control Gas (KG)
This gas is led to the torch head and controls the presence of the protection cap which is situated there. Consequently, the plasma cutting system can only be started if the torch is installed properly.
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CONTOUR CUT
CONTOUR CUT is a further development of the HiFocus technology for cutting fine inside and outside contours. In particular, small holes and slotted holes with the diameter and the material thickness at a ratio of 1:1 can be cut, thus improving cylindricity, repeatability and dimensional accuracy. |
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CUTBUS
A CUTBUS is used for the data transfer of technology parameters from the guiding system to the height control unit.
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Cutting Gas (SG)
The cutting gas is electrically conductive because of the ionization and can create the main arc between cathode and work-piece. The energy of the arc makes the material melt and the flow rate of the cutting gas drives it out of the kerf. In order to achieve optimum cutting results different cutting gases are used according to material type and thickness (for example: ignition gas air with cutting gas oxygen or ignition gas argon with cutting gas argon/hydrogen, argon/hydrogen/nitrogen, argon/nitrogen).
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D
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Dissociation
In chemistry, dissociation is the excited or self-acting process in which chemical compounds separate into two or more molecules, atoms or ions. The dissociation energy is the energy which is required to separate the chemical compound.
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Distance Control
see Height Control
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Dross
The drop-shaped adherence at the bottom cutting edge is called dross.
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E
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Electrode
see cathode
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Enthalpy
Enthalpy is the amount of thermal energy which is released (exothermic) or consumed (endothermic) during a process which takes place at constant pressure.
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H
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Height Control
Height control units have a great influence on the quality of plasma cuts. They guarantee the right distance between the nozzle of the plasma torch and the work-piece and keep it constant.
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HiFocus
HiFocus is a cutting technology developed by Kjellberg Finsterwalde which uses a swirl gas to constrict the plasma beam very strongly. An excellent cutting quality can be achieved (laser-like); the cut surfaces are nearly vertical.
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HiFocus F
HiFocus F is a cutting technology suitable for flying cutting start. The pilot arc does not need to be ignited above the material but ignition can take place beyond. After the torch has been moved towards the workpiece and the pilot arc has touched the material, the main arc is formed automatically.
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HotWire
A variety of indirect plasma cutting (use of an auxiliary anode, for example a welding wire) for cutting interrupted structures or insulating materials.
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I
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Identification Gas (IG)
This gas is the control gas that is returned from the plasma torch. It serves to identify the different torch heads.
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Ignition Gas (ZG)
This gas is used for the ignition of the plasma arc. It's function is to facilitate the ignition process. It can have a positive influence on the lifetime of the cathode.
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Indirect Plasma Cutting
In contrast to direct plasma cutting the arc is not transferred. The nozzle serves as anode instead of the work-piece.
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Ionization
Ionization is the process of removing one or more electrons from an atom or moleule so that the atom or molecule is left as positively charged ion (cation). The reverse process where a positively charged atom or molecule catches an electron is called recombination.
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M
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Marking Gas (MG)
The gas used for marking with plasma is called marking gas.
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P
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Pilot Arc
The pilot arc is responsible for the ignition of the main arc. It has low energy and ensures the beginning ionization of the way between the plasma torch and the work-piece. This can have a positive influence on the lifetime of the cathode.
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Plasma Gas (PG)
All gases or gas mixtures which can be used for creating the plasma beam and carrying out the cutting process are called plasma gases. There are two phases of the plasma arc: the ignition phase and the cutting phase. Consequently, plasma gases can be divided into ignition gases and cutting gases. They can differ in type as well as volume flow.
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Plasma Gouging
Plasma Gouging is a process for removing material by using a plasma arc.
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PLUS Technology
The PLUS technology was developed by Kjellberg Finsterwalde in order to make vertical cuts possible. Whereas conventional plasma cutting produces cut surfaces with a slight inclination, this can be avoided with the PLUS technology, thus creating vertical cut surfaces. Choosing the correct cutting direction (outer contours to the right, inner contours to the left) guarantees that the vertical cut surface is always in cutting direction right and thus at the finished product and not at the waste part.
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Q
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Quality
see Quality Parameters
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Quality Parameters
The quality of cut surfaces when using thermal separation processes is determined by the rectangularity or inclination tolerance and the average surface roughness. Additionally, the groove lag, the initial fusing of the upper edge and the possible dross or drop formation at the bottom edge of the work-piece can be considered. These parameters are stipulated by the standard DIN EN ISO 9013.
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S
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Sealing Gas (SpG)
Sealing gas is a swirl gas with reduced volume flow that is used for underwater plasma cutting during cutting stops. It prevents the water from getting into the torch head while the torch is underwater.
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Swirl Gas (WG)
This gas covers the plasma beam. It further contributes to improving the cutting quality because it constricts and cools the arc additionally and protects the consumables during piercing and underwater cutting. Here, too, different gases can be used.
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