Lincoln Electric ED026090 Use and Care Manual

INNERSHIELD®WELDING GUIDE

b. Faire trés attention de bien s’isoler de la masse quand onsoude dans des endroits humides, ou sur un planchermetallique ou des grilles m

7. Quand on ne soude pas, poser la pince à une endroit isolé dela masse. Un court-circuit accidental peut provoquer unéchauffement et un risqu

– 12 –INNERSHIELD®Innershield is an arc welding process that uses a continuously fedwire to supply filler metal to the arc. The wire is not solid, bu

– 13 –INNERSHIELD FEATURES• Can be used in wind speeds of up to 30 mph without losingmechanical properties.• Gas bottles are unnecessary.• Stiff wi

SEISMIC APPLICATIONS:Constant voltage (CV) power sources are recommended for usewith all Innershield electrodes.NR-211-MP THICKNESS RESTRICTIONS:Wire

– 15 –INTERMIXINGWhen Innershield (FCAW-S) weld deposits are intermixed withweld deposits from other welding processes, a decrease in weldmetal Charpy

– 16 –CHOOSE THE PROPER INNERSHIELD GUNLincoln Innershield GunsRated Amperage, Duty Cycle and Wire SizesFor proper CTWD use the appropriate insulated

– 17 –Current Amps Total Work and Electrode Cable Length(1)60% Duty Cycle0-50 ft. (0-15m) 50-100 ft. (15-30m)300 1 (50mm2)1(50mm2)400 2/0 (70mm2) 2/0

SET THE CONTACT TIP TO WORK DISTANCE (CTWD)CTWD is measured from the end of the contact tip to the work.Maintain this length within ±1/8” (3.2mm.) for

– 19 –SET THE WIRE FEED SPEEDAdjust the wire feed speed using the WFS control on the wirefeeder. Set to the suggested procedures. See pages 30-39. Th

– 2–TABLE OF CONTENTSSAFETY PRECAUTIONS...3-11INTRODUCTION ...12PRODUCT ADVANTAGES...

– 20 –WELDING TECHNIQUESLOADING 13-14 LB. (5.9-6.5 kg) COILS ON A 2”(50mm) SPINDLE1. Remove the locking collar and the cover plate from K435spindle a

– 21 –HANDLING POOR FITUPInnershield bridges gaps better than most welding processes.When using NS-3M at 3” (76mm) CTWD, temporarily increasingthe vis

– 22 –Max. 20°MAKING VERTICAL UP WELDSUse 5/64” (2.0mm) size and less.NR-202 NR-203M NR-203MP NR-203 Nickel (1%)NR-211-MP NR-212NR-232 NR-233Smal

– 23 –Vertical Up Fillet and Lap Welds1. Make larger welds with the following techniques:a. On 1/4” (6mm) welds, a short side-to-side motion is usuall

– 24 –WORKING WITH NS-3MTo calculate electrical stickout, subtract 1/4” from CTWD..120" (3.0mm) NS-3MWhen using the long CTWD of 3” to 4” (75 to

– 25 –Well made Innershield welds have excellent appearance.TROUBLESHOOTINGTo Eliminate Porosity (In order of importance)1. Clean the joint from moi

– 26 –To Minimize Arc Blow (In order of importance)Arc blow occurs when thr arc stream does not folow the shortestpath between the electrode and the

– 27 –3. Increasing WFS also increases the maximum voltage which canbe used without porosity. Lowering the WFS requires loweringthe voltage to avoid p

– 28 –In general, Innershield electrodes will produce weld deposits whichachieve diffusible hydrogen levels below 16 ml per 100 gramsdeposited metal.

– 29 –Innershield Products Used for ApplicationsRequiring More Restrictive Hydrogen Control (-HElectrodes)The AWS specifications for flux-cored electr

WARNINGThe serviceability of a product or structure utilizing thistype of information is and must be the sole responsibilityof the builder/user

Plate Size – T (in) 14 GA 10 GAPass 11ElectrodePolarityCTWD 1” 1”Wire Feed Speed 50 75(in/min)Arc Volts 16(1)18(1)Travel Speed (in/min) As Req’d As Re

Plate Size – T (in) 3/4 and upPass 1 2 & upElectrodePolarityCTWD 1– 1-1/2 " 3/4 – 1"Drag Angle 5 – 30° 0 – 30°Wire Feed Speed 110 – 135

– 32 –Plate Size – T (in) 3/8 & upPass 1 2 & upElectrodePolarityCTWD 3/4 – 1-1/4"Drag Angle 5 – 20°Wire Feed Speed 155 165(in/min)Arc Vo

– 33 –Plate Size – T (in) 3/4 & upPass 1 2 & upCap Passes (Horizontal)ElectrodePolarityCTWD 1 – 1-1/2" 3/4 – 1-1/4"Drag Angle 5 – 30

– 34 –Because design, fabrication, erection and welding variablesaffect the results obtained in applying this type of information,the serviceab

– 35 –Because design, fabrication, erection and welding variablesaffect the results obtained in applying this type of information,the serviceabi

– 36 –Plate Size – T (in) 3/4 & upPass 1 2-capCap Passes (Horizontal)ElectrodePolarityCTWD 1-1/4 – 1-1/2” 3/4 – 1-1/4” 3/4 – 1-1/4”Drag Angle 5 –

– 37 –Plate Size – T (in) 5/16 3/8 1/2 Over 1/2Leg Size – L (in) 1/4 5/16 3/8 Over 3/8Pass 111As req’dElectrodePolarityCTWD 3/4" (2)3/4" (2)

– 38 –FLAT AND HORIZONTAL BUTT WELDSVERTICAL UP BUTT WELDS –OPEN ROOTPlate Size – T (in) 3/8 & upPass 1(1)2 & upElectrodePolarityCTWD 1-1/4 –

– 39 –Because design, fabrication, erection and welding variablesaffect the results obtained in applying this type of information,the serviceabi

FOR ENGINEpowered equipment.1.a. Turn the engine off before troubleshooting and maintenancework unless the maintenance work requires it to be running.

– 40 –WirePolarity, AWS Class. Wire Feed Arc Approx. DepositCTWD In (mm) Speed Voltage Current RateWire Weight in/min (m/min) (volts) (amps) lbs/hr (

– 41 –WirePolarity, AWS Class. Wire Feed Arc Approx. DepositCTWD In (mm) Speed Voltage Current RateWire Weight in/min (m/min) (volts) (amps) lbs/hr (k

– 42 –WirePolarity, AWS Class. Wire Feed Arc Approx. DepositCTWD In (mm) Speed Voltage Current RateWire Weight in/min (m/min) (volts) (amps) lbs/hr (

– 43 –WirePolarity, AWS Class. Wire Feed Arc Approx. DepositCTWD In (mm) Speed Voltage Current RateWire Weight in/min (m/min) (volts) (amps) lbs/hr (k

– 44 –WirePolarity, AWS Class. Wire Feed Arc Approx. DepositCTWD In (mm) Speed Voltage Current RateWire Weight in/min (m/min) (volts) (amps) lbs/hr (

– 45 –The suggested operating parameters listed in this publication arenot intended to serve as specific procedures for any application.These suggeste

– 46 –Full Size Drawings* of Parts for K126 and K206 GunsInsulatedGuide forK126KP1995-1for 2” (51 mm)CTWD.Length:1 7/8”(48 mm)Nose ConeAssemblyfor K1

– 47 –Electrode Contact TipSizes (mm) Part No.1/16” (1.6) KP2103-2B1-1/16.068-.072” (1.7) KP2103-1B1-.0725/64” (2.0) KP2103-5B1-5/643/32” (2.4) KP2103

– 48 –LINCOLN WELDINGSCHOOL Lincoln Welding School22801 St. Clair AvenueCleveland, Ohio 44117-1199 Ask for bulletin ED122 You may reach us at: 216.3

– 49 –Low Hydrogen Pipe Module:GMAW/FCAW/SMAW1 WeekGTAW/SMAW1 WeekQualification Test Training:AWS Test Semi-Automatic Flux Cored Arc Welding SelfShiel

ELECTRIC AND MAGNETIC FIELDSmay be dangerous2.a. Electric current flowing through any conductor causes localized Electric and Magnetic Fiel

– 50 –NOTES

– 51 –NOTES

C U S T O M E R A S S I S T A N C E P O L I C YThe business of The Lincoln Electric Company is manufacturing and selling high qualityweld

ELECTRIC SHOCK can kill. (Cont’d)kneeling or lying, if there is a high risk of unavoidable oraccidental contact with the workpiece or groun

FUMES AND GASEScan be dangerous.5.a. Welding may produce fumes and gaseshazardous to health. Avoid breathing thesefumes and gases.When welding

WELDING SPARKS can cause fire or explosion. (Cont’d)6.c. When not welding, make certain no part of the electrodecircui

CYLINDER may explode if damaged. (Cont’d)7.d. Never allow the electrode, electrode holder or any othere