Start Basicse Copyright 2000 Hypertherm These materials cannot

Start Basicse Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Plasmacutting basics. . . Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Plasma the fourth state of matter Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Plasma Definition: The ionization of gases causes the creation of free electrons and positive ions among the gas atoms. When this occurs, the gas becomes electrically conductive with current carrying capabilities. Thus, it becomes a plasma. 4 Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Plasma in Nature: One example of plasma, as seen in nature, is lightning. Just like a plasma torch, the lightning moves electricity from one place to another. In lightning, gases in the air are the ionization gases. 5 Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Temperaturdifferences Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Plasmagas Transferred Arc (Cutting arc) Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. Non transferred arc (During ignition: Pilot)

Electrode Plasmagas Nozzle Work Plasmatorch without gasswirl Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Plasmagas Electrode Nozzle Plasmatorch with gasswirl Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Nozzle defect Doublearcing causes angle deviation Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Werkstück Hypertherm Plasmatorch with Shield-Technology Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Nozzlecopperpart Nozzleceramicpart Waterinjection Torch Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

High Definition Torch Higher current density with double-nozzle and vent Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

With the regular Swirl-Ring the vertical side is rightseen in cutting direction. Outside cuts are to be cut then in clockwise direction and inside cuts in counterclockwise direction. Cutting Direction Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Top edge rounding Nitrogen: No oxidation on stainless steel and non-ferrous metals. Some dross formation and occurence of pores during welding on mild steel possible. Oxygen: On mild steel very likely no dross and no pores. Lower electrical power needed. High electrode life with the Long. Life technology. Nitrogen or Oxygen? Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. Vertical cuts

Problem: Formation of pores on welding of mild steel Pores Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Number of pores on mild steel with different plasma gases Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Torch to work distance To High cut angle positive reduce Voltage / distance Optimum To Low cut angle negative increase Voltage / distance Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Cutting Speed To slow long dross Increase speed Optimum dross free To fast short, solid dross Decrease speed Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Long. Life® Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Cool. Core. TM Cylindrical hollow Core 340 A HT 4001® Oxygen Plasma Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

The Sequences of Operation Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Torch ignition Blow Back Technology (Elektrode goes back) Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. Blow Forward Technology (Nozzle goes forward)

Gaspreflow(1) A start signal is sent to the DC power supply. This simultaneously activates the Open Circuit Voltage (OCV) and the gas flow to the torch. Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

High Voltage ignition(2) After the gas flow stabilizes, a High Frequency circuit is activated. The HF breaks down between the electrode and the nozzle inside the torch and the arc causes the gas passing through it to become ionized, visible as blue low power sparks when there would be no DC power. Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Pilot arc(3) This electrically conductive gas creates a current path between the electrode and the nozzle and results in the formation of a pilot arc, visible as bright white arc. The power is limited to achieve a long nozzle life. Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Main (cutting) arc(4) When the pilot arc is brought into contact with the workpiece, it will attach to the workpiece. The Plasma arc melts the metal, and the high velocity gas removes the molten material. The main arc can have full power. Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Hypertherm worldwide Leader in Plasma Cutting Technology Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Application of Plasma Cutting Vehicles Apparatus Ship Building Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. Air Conditioning

150 mm 1 mm Mechanized Systems Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

Legend : Gases Legend : Operative Range Air Oxygen Nitrogen Argon-H 2 Maximum Range Optimal Range Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

System - Material Thickness 0 mm 5 mm 10 mm 15 mm MAX 100® MAX 100 D® MAX 200® Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. 20 mm 25 mm 50 mm 100 mm

System - Thickness 0 mm 5 mm 10 mm 15 mm HT 2000® HT 4001® PAC 500 Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. 20 mm 25 mm 50 mm 100 mm

System - Thickness 0 mm 5 mm 10 mm 15 mm HD 3070 Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm. 20 mm 25 mm 50 mm 100 mm

Plasma Cutting in the Future - Higher cut quality - Better productivity - More automation Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.

End. Basicse Copyright, 2000 Hypertherm. These materials cannot be reproduced without the permission of Hypertherm.