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R-Tech TIG 500 AC/DC, Operating Instructions Manual

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R-Tech TIG 500 AC/DC Operating Instructions Manual Download Page 9

7

2.4 Shielding Gas Selection

Summary of Contents for TIG 500 AC/DC

Page 1: ...TIG 210 320 500 AC DC Operating Instructions www r techwelding co uk ...

Page 2: ...ot to be reproduced The recipient acknowledges and agrees that it must make its own independent investigation and should consider seeking appropriate professional recommendation in reviewing and evaluating the information This document does not take into account the particular circumstances of the recipient and the recipient should not rely on this document in making any decisions including but no...

Page 3: ...2 7 Torch Movement During Welding 8 2 8 Joint Preparation 17 3 0 TIG Welding of Materials 3 1 Application Summary 21 3 2 C Mn Steel 22 3 3 Alloyed Steel 23 3 4 Stainless Steel 24 3 5 Aluminium 25 3 6 Balanced Squarewave 25 3 7 Copper and Copper Alloys 26 4 0 Connection Your R Tech AC DC TIG210 4 1 Power 28 4 2 Shielding Gas 28 4 3 TIG Torch Connection 28 4 4 MMA Operation 28 4 5 TIG Welding Operat...

Page 4: ... spaces Be alert to this at all times Keep your head out of the fumes rising from the arc Fumes from the welding of some metals could have an adverse effect on your health t Don breathe them in If you are welding on material such as stainless steel nickel nickel alloys or galvanised steel further precautions are necessary Wear a respirator when natural or forced ventilation is not good enough Eye ...

Page 5: ...working with cylinders or operating cylinder valves ensure that you wear appropriate protectiv ves boots e clothing glo and safety glasses When moving cylinders ensure that the valve is not accidentally opened in transit Before operating a cylinder valve Ensure that the system you are connecting the cylinder into is suitable for the gas and pressure involved Ensure that any accessories such as hos...

Page 6: ...g electrode holders in water Working on a dry insulated floor where possible Never hold the electrode and holder under your arm 1 4 User Responsibility Read the Operating Manual prior to installation of this machine Unauthorised repairs to this equipment may endanger the technician and operator and will void yourWarranty Only qualified personnel approved by R Tech Welding should perform repairs Al...

Page 7: ...st often connected to the negative pole The output characteristics of the power source can have an effect on the quality of the welds produced Shielding gas is directed into the arc area by the welding torch and a gas lens within the torch distributes the shielding gas evenly over the weld area In the torch the welding current is transferred to the tungsten electrode from the copper conductor The ...

Page 8: ...al remains relatively cool compared to sing straight polarity Relatively shallow penetration is obtained An electrode whose diameter is too large will reduce visibility and increase arc instability Use of DCEP Intense heat means a larger diameter of electrode must be used with DCEP Maximum welding amperage should be relatively low approximately six times lower than with DCEN Alternating Current wi...

Page 9: ...7 2 4 Shielding Gas Selection ...

Page 10: ...8 2 5 Consumable Selection a Welding wire The following table includes the recommended welding consumable for the most commonly welded materials ...

Page 11: ...9 2 6 Welding Techniques 2 7 Torch Movement During Welding 2 8 Positioning Torch Tungsten for Various Weld Joints ...

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Page 15: ...13 2 9 Joint Preparation ...

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Page 19: ...17 3 0 TIG Welding of Materials 3 1 Application Summary ...

Page 20: ...ece heating Only inert or reducing gases should be used forTIG welding and pure argon is normally recommended as the shielding gas for steel Filler rods are usually selected to match the chemical composition and the mechanical properties of the parent plate The weldability of the steel may impose restrictions on the choice of filler rod Steels with carbon contents above about 0 3 are hardenable an...

Page 21: ...or lanthanum oxide are used for welding steel and they give good arc stability Only inert or reducing gases should be used forTIG welding and pure argon is normally recommended as the shielding gas for welding alloy steel Filler rods are usually selected to match the chemical composition and the mechanical properties of the parent plate The weldability of the steel may impose restrictions on the c...

Page 22: ...rns have promoted use of ceriated or lanthanated instead The filler rod used depends on the type of stainless being welded but in general is matching for austenitic grades enriched in nickel for duplex grades and may be matching or an austenitic type for ferritic and martensitic grades Shielding gas is conventionally pure argon but other gases are available to provide specific properties and these...

Page 23: ...must be removed to allow full fusion to take place and ACTIG does this efficiently allowing high quality joints to be made High purity argon and argonhelium shielding gas mixtures can be used The AC output may be conventional sine wave or square wave and many electronic power sources allow the AC waveform to be adjusted and also provide facilities for pre and post gas flow and current slope in and...

Page 24: ...andard shielding gases for DC TIG welding copper and copper alloys Alushield Heavy is ideal forTIG welding copper and some copper alloys particularly in thicker sections Pure argon is the shielding gas used for ACTIG welding TIG consumables are solid filler rods based on pure copper and several copper alloy compositions including aluminium bronzes silicon bronzes and cupro nickels It is normal to ...

Page 25: ... the machine by means of the dinse back end For DC TIG operation fit the torch back end to the negative dinse connection similarly for DC fit the torch backend to the positive dinse connection 2 The gas hose is fitted to the gas fitting GAS located on the front bottom panel of the machine 4 4 MMA Operation TheR Tech AC DC range can be used as a MMA welding machine by fitting a electrode holder and...

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Page 28: ...d this down for the entire weld Selecting the 2T function will disable the Start current 9 and the process will immediately rise to the selected welding current For 4T operation Depress the contactor switch on the torch and release it when welding starts Depress the contactor switch again at the end of the weld Selecting the 4T function will enable the start current 9 and the downslope cycle 12 Bo...

Page 29: ... penetration and a good cleaning action 5 AC balance control In addition to increasing the welding current in AC applications a change in the penetration or cleaning when welding can be achieved by adjusting the AC Balance The AC balance time spend in the positive maximum cleaning or negative maximum penetration can be adjusted by using the AC balance control knob 16 By adjusting the AC balance co...

Page 30: ...Factor 0 95 Protection Grading 1P23 Weight kg 17 Dimensions mm 430 x 208 x 410 Warranty 3 Years 5 0 Technical Specifications AC DC TIG320 AC DC TIG320 3phaseAC415v 50 60 32 Stick 10 320 DC TIG 5 210 62 320a 0 95 1P23 27 490 x 255 x 480 3 Years AC DC TIG500 AC DC TIG500 3phaseAC415v 50 60 32 Stick 10 400 DC TIG 5 210 62 500a 0 95 1P23 29 490 x 255 x 480 3 Years AC TIG 10 210 AC TIG 10 320 AC TIG 10...

Page 31: ...ations on Warranty The following conditions are not covered non compliance with operating and maintenance instructions such as connection to an incorrect faulty voltage supply including voltage surges outside equipment specs and incorrect overloading natural wear and tear and accidental damage transport or storage damage The Warranty is void if changes are made to the product without the approval ...

Page 32: ...der Never use oxygen for venting containers 7 0 Recommended Safety Guidelines Diagram and safety explanation Electrical safety alert Welding electrode causing electric shock Fumes and gases coming from welding process Welding arc rays Read instruction manual Become trained Diagram and safety explanation Wear dry insulated gloves Insulate yourself from work and ground Disconnect input power before ...

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