Lincoln Electric INNERSHIELD NR-202 Welding Instruction Manual Download Page 51

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Summary of Contents for INNERSHIELD NR-202

Page 1: ...INNERSHIELD ELECTRODES Welding Guide...

Page 2: ...he Voltage 19 Travel Speed 19 Loading 13 14 Lb Coils on a 2 Spindle 20 Handling Poor Fitup 21 Use the Proper Drag Angle 21 Use the Proper Wire Angle to Joint 21 Making Vertical Up Welds 22 23 Making D...

Page 3: ...wing safety highlights For additional safety information it is strongly recommended that you purchase a copy of Safety in Welding Cutting ANSI Standard Z49 1 from the American Welding Society P O Box...

Page 4: ...way from V belts gears fans and all other moving parts when starting operating or repairing equipment ____________________________________________________ 1 e In some cases it may be necessary to remo...

Page 5: ...n the electrode and work cables If the electrode cable is on your right side the work cable should also be on your right side 2 d 4 Connect the work cable to the workpiece as close as possible to the...

Page 6: ...g condition Replace damaged insulation 3 g Never dip the electrode in water for cooling 3 h Never simultaneously touch electrically hot parts of electrode holders connected to two welders because volt...

Page 7: ...form phosgene a highly toxic gas and other irritating products 5 c Shielding gases used for arc welding can displace air and cause injury or death Always use enough ventilation especially in confined...

Page 8: ...hair Wear ear plugs when welding out of position or in confined places Always wear safety glasses with side shields when in a welding area 6 g Connect the work cable to the work as close to the weldi...

Page 9: ...ut power using the disconnect switch at the fuse box before working on the equipment 8 b Install equipment in accordance with the U S National Electrical Code all local codes and the manufacturer s re...

Page 10: ...se prot ger contre les chutes dans le cas ou on recoit un choc Ne jamais enrouler le c ble lectrode autour de n importe quelle partie du corps 3 Un coup d arc peut tre plus s v re qu un coup de soliel...

Page 11: ...al qui produit des fume s toxiques 10 Ne pas souder en pr sence de vapeurs de chlore provenant d op rations de d graissage nettoyage ou pistolage La chaleur ou les rayons de l arc peuvent r agir avec...

Page 12: ...is often done with Innershield because it is done outdoors and shielding gas is sometimes difficult to get to these locations Lincoln Electric the originator of the Innershield process makes Innershie...

Page 13: ...s no tenting to keep wind away saving labor costs Innershield Wires are stiff Stiff wire is excellent for feedability Stiff wire allows for longer guns to be used saving labor costs moving feeders and...

Page 14: ...been tested in accordance with FEMA 353 Recommended Specifications and Quality Assurance Guidelines for Steel Moment Frame Construction for Seismic Applications FEMA 353 test certificates are availabl...

Page 15: ...ure or operator qualification tests it is recommended that aging be applied whenever permitted by the appropriate code For example when qualifying procedures to AWS D1 1 Structural Welding Code see Pa...

Page 16: ...e Wire Size 068 5 64 1 7 2 0mm K289 1 4 500 Amps at 60 Duty Cycle Wire Size 120 7 64 3 0 5 6mm K309 Gun 250 Amps at 60 Duty Cycle Wire Size 062 3 32 1 6 2 4mm K115 1 2 3 4 5 Guns with 82 Nozzle 450 Am...

Page 17: ...upon the application If necessary try different locations until the best weld quality is obtained Clamp the work cable to the work so there is a positive and clean metal to metal contact point Poor w...

Page 18: ...e 3 Replace insulated guide 4 The length of wire protruding from the end of the guide is visible stickout Maintaining this visible CTWD with the guide in place gives the correct CTWD while welding For...

Page 19: ...s away Since the wire is mechanically fed this must be avoided SET THE VOLTAGE Adjust the voltage to the suggested procedures as measured by the wire feeder voltmeter or voltmeter placed between the w...

Page 20: ...e coil cut off the bent end straighten the first six inches Be sure the cut end of the wire is round and burr free before the new coil into the drive rolls Thread it through the feeding wire feed line...

Page 21: ...welding If slag tends to run ahead of the arc increase the drag angle However if the drag angle becomes too great erratic arc action and excessive arc blow will result in porosity and poor bead shape...

Page 22: ...low portion of the range General techniques are illustrated below Experience will show how much hesitation and upward step is required for high quality welds Generally keep the wire nearly perpendicul...

Page 23: ...mm before starting this weave MAKING DOWNHILL AND VERTICAL DOWN WELDS With NR 202 NR 203 types NR 207 NR 208 H NR 211 MP NR 212 Make 1 4 6mm or smaller welds using vertical down techniques The excelle...

Page 24: ...lding with 4 100mm CTWD is generally limited to 9 16 8mm leg and larger flat fillets multiple pass flat fillets and the fill passes of flat deep groove butt joints When changing the insulated guide ti...

Page 25: ...eed To Eliminate a Ropey Convex Bead In order of importance 1 Increase voltage within wire specifications 2 Decrease CTWD 3 Decrease WFS 4 Decrease travel speed 5 Decrease drag angle To Reduce Spatter...

Page 26: ...The four major operating variables arc voltage wire feed speed WFS travel speed and CTWD are interdependent If one is changed usually the other three must also be adjusted Arc Voltage If WFS travel s...

Page 27: ...e welding current Decreasing CTWD increases current 2 Increasing CTWD reduces actual arc voltage and results in more convex beads and reduces the tendency of porosity 3 Momentarily increasing CTWD can...

Page 28: ...tion as to when the electrode was made Once the electrode packaging is opened Innershield electrodes can be contaminated by atmospheric moisture Care has been taken in the design of these products to...

Page 29: ...tured to produce weld deposits meeting these more stringent diffusible hydrogen requirements These electrodes are usually distinguished by an H added to the product name These electrodes will remain r...

Page 30: ...MP DC Plate Size T in 16 GA 12 GA Pass 1 1 Electrode Polarity CTWD 1 1 Wire Feed Speed 40 60 in min Arc Volts 15 16 Travel Speed in min As Req d As Req d Deposit Rate lbs hr 1 7 2 6 068 NR 232 DC 068...

Page 31: ...Up Leg Size L in 1 4 5 16 over 5 16 Pass 1 1 As req d Electrode Polarity CTWD 3 4 1 1 4 Drag Angle 20 30 Wire Feed Speed 165 320 165 250 in min Arc Volts 20 22 25 27 20 22 23 24 Travel Speed in min 15...

Page 32: ...Size L in 1 4 5 16 over 5 16 Pass 1 1 As req d Electrode Polarity CTWD 3 4 1 Drag Angle 0 30 Wire Feed Speed 130 165 in min Arc Volts 19 21 21 23 Travel Speed in min 6 5 9 5 5 7 As Req d Deposit Rate...

Page 33: ...22 23 25 20 21 23 24 Travel Speed in min 4 3 5 6 As Req d As Req d Deposit Rate lbs hr 3 8 4 6 8 6 9 5 6 2 6 8 FLAT AND HORIZONTAL BUTT WELDS 068 NR 232 DC NR 232 068 WELDING PROCEDURES Because design...

Page 34: ...155 170 155 170 in min Arc Volts 20 23 20 23 20 23 Travel Speed in min 9 5 6 5 As Req d Deposit Rate lbs hr 6 0 6 5 6 0 6 5 6 0 6 5 ALL POSITION FILLET WELDS 072 NR 232 DC Plate Size T in 3 4 up Pass...

Page 35: ...in min Arc Volts 22 22 20 Travel Speed in min As Req d As Req d As Req d Deposit Rate lbs hr 6 0 6 0 6 0 072 NR 232 DC FLAT AND HORIZONTAL FILLET WELDS 1 For maximum penetration point the electrode in...

Page 36: ...ts 17 18 20 22 20 21 Travel Speed in min As Req d As Req d As Req d Deposit Rate lbs hr 3 3 4 5 8 5 9 5 6 0 6 5 Because design fabrication erection and welding variables affect the results obtained in...

Page 37: ...ults obtained in applying this type of information the serviceability of a product or structure is the responsibility of the builder user ALL POSITION FILLET WELDS 5 64 NR 232 DC 2 For best slag contr...

Page 38: ...root opening of 5 16 Plate Size T in 3 8 up Pass 1 2 3 up Electrode Polarity CTWD 1 1 4 1 1 2 1 2 1 2 Drag Angle 5 40 0 30 0 30 Wire Feed Speed 60 65 115 130 in min Arc Volts 16 17 19 20 20 21 Travel...

Page 39: ...responsibility of the builder user VERTICAL UP AND OVERHEAD BUTT WELDS STEEL BACKUP Plate Size T in 3 8 up Pass 1 2 up Electrode Polarity CTWD 1 1 1 1 Drag Angle 0 30 0 30 Wire Feed Speed 115 130 in...

Page 40: ...50 6 4 26 575 21 4 9 7 3 32 NR 131 150 3 8 25 390 11 6 5 3 DC E70T 10 200 5 1 26 490 15 6 7 1 1 1 2 38 250 6 4 26 570 19 6 8 9 1 58 lbs 1000 425 10 8 27 810 33 6 15 2 045 NR 152 60 1 5 15 95 1 1 0 5 D...

Page 41: ...0 9 DC E71T 8J 90 2 3 19 220 4 2 1 9 1 25 120 2 8 20 280 5 3 2 4 1 03 lbs 1000 140 3 6 22 310 6 8 3 1 5 64 NR 203 Ni 1 16 50 1 3 145 2 3 1 0 DC E71T8 Ni1 18 70 1 8 195 3 3 1 5 1 25 20 110 2 8 275 5 3...

Page 42: ...5 64 NR 211 MP 50 1 3 16 180 2 9 1 3 DC E71T 11 75 1 9 18 235 4 5 2 0 1 25 120 3 0 20 290 7 4 3 4 1 17 lbs 1000 160 4 1 22 325 10 0 4 5 3 32 NR 211 MP 50 1 3 16 245 4 2 1 9 DC E71T 11 75 1 9 19 305 6...

Page 43: ...260 5 5 2 5 1 25 130 3 3 20 5 285 6 2 2 8 1 00 lbs 1000 180 4 6 22 5 365 8 7 3 9 5 64 NR 305 175 4 5 22 295 8 8 4 0 DC E70T 6 260 6 6 24 385 13 1 6 0 1 3 8 35 280 7 1 25 405 14 2 6 5 1 05 lbs 1000 32...

Page 44: ...0 200 5 0 28 390 12 3 5 6 7 64 NR 311 Ni 100 2 5 23 310 8 4 3 8 DC E70TG K2 140 3 5 25 370 11 8 5 4 1 3 4 44 200 5 0 29 470 17 0 7 7 1 89 lbs 1000 240 6 1 30 520 20 4 9 2 5 64 NS 3M 200 5 1 30 280 10...

Page 45: ...tion type of weld base steel surface condition or other factors In general use the highest voltage possible consistent with porosity free welds CTWD is measured from the work surface to the contact ti...

Page 46: ...1 2 38 mm CTWD Length 1 5 8 42 mm KP2099 1 for 3 4 1 19 25 mm CTWD Length 1 25 mm Insulated Guide for K206 Contact Tip KP2100 xx Electrode Contact Tip Part No Sizes mm 062 1 6 KP2100 2B1 1 16 068 072...

Page 47: ...K126 K309 KP1914 2 K126 K309 062 068 072 KP1914 1 K126 5 64 3 32 KP1909 1 K206 KP1921 1 K115 1 5 64 KP1919 2 KP1919 1 3 32 KP1907 2 KP1910 2 7 64 120 KP1907 1 KP1910 1 K116 1 3 32 KP1908 2 7 64 120 KP...

Page 48: ...ormation on the Lincoln Welding School please write to Classes are in Session from 8 00 AM to 2 30PM Basic Plate Sheet Metal 5 Weeks Plasma Oxy fuel Alloy Hardfacing 3 Weeks Pipe select ASME or API 3...

Page 49: ...Test Shielded Metal Arc Welding SMAW Stick 1 1 Week AWS Test Shielded Metal Arc Welding SMAW Stick 1 1 Week ASME Test Shielded Metal Arc Welding SMAW Stick 1 1 Week ASME or API Pipe Welding Test Trai...

Page 50: ...50 NOTES...

Page 51: ...51 NOTES...

Page 52: ...correcting any such information or advice once it has been given nor does the provision of information or advice create expand or alter any warranty with respect to the sale of our products Lincoln E...

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