Lincoln Electric C2.410 manual Wrong

Page 9

Slow travel

WRONG

Slag

Fused metal	Plate

Fast Travel

RIGHT

Electrode coating

touches plate lightly

Slag

Fused metal

Plate

1/8" root gap between electrode coating and plate

60 to 80°

Travel fast, but not too fast for good slag coverage. Stay about 1/4” to 3/8” ahead of the molten slag. If travel speed is too slow, a small ball of molten slag may form and roll ahead of the arc causing erratic bead shape, spatter, and poor penetration.

Deep Groove Groove Welds – To hold the large pool of molten weld metal from Jetweld electrodes, either a weld backing plate or a root pass made with deep penetrating electrode (usually E6010 or E6011) is required. Deposit Jetweld beads with a stringer technique or a slight weave to obtain fusion to both plates. Split weave welds are better than a wide weave near the top of deep grooves. Size the second to last layer so the last layer will not exceed a 1/16” buildup.

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Image 9

Contents Stick Electrode Welding Guide Page Table of Contents Out-Of-Position Welding Vertical and Overhead Welding ProceduresVertical Up Techniques for Fillet and Groove Welds Vertical Down Welds Vertical Up Groove WeldsVertical Up Fillet Welds 160 PolarityWeld Jetweld LH-3800 E7028H8 High-Deposition WeldingWrong End view Side view Corner Welds Groove Welds Groove Welds First PassJetweld 2 E6027 Amps. AC at 14/Min Over E6011 Root Passes Deep Groove Welds Joint a Pass E6011TPlate Size T 14 ga 12 ga 10 ga No. of Passes Leg Size L Flat Fillet WeldsFt. of Weld/Hr Lbs. of Elec./Ft. 049 082 117 162 WeldHorizontal Fillet Welds Welding Inclined Plate Downhill Angle deg Polarity Arc Speed In./Min.3 Lbs. of Elec./Ft.180 Alternate High Speed Welding Sheet MetalPage Edge Welds Lap Welds Fillet WeldsCurrent Amps 110 155 Polarity Diameter PositionCurrent Amps 120 170 Polarity 018 028Roof Deck Thickness 22 ga 20 ga 18 ga 16 ga Burnthrough Spot Welds Roof Decking to Beam Roof Beam FlangeE7018-1 Low Hydrogen WeldingMultipass Page Diameter Current Amps 155 Polarity Overhead Groove WeldsNo. of Pass Leg Size L Overhead Fillet Welds Also see Out-of Position Procedures,Arc Speed In./Min Ft. of Weld/Hr Lbs. of Elec./Ft. No. of Passes Leg Size LBack gouge first bead as needed Plate Size T No. of Passes Horizontal Groove WeldsDiameter Current Amps 230 200 Polarity Arc Speed In./Min Ft. of Weld/Hr Lbs. of Elec./Ft. of Weld230 200 Polarity Use steel backing as onWith E7028 Electrode With E7018 Electrode 275 350132 195 272 409 727 157 236 320 260 335Ft. of Weld/Hr.2 Lbs. of Elec./Ft. 203 335785 Minimum Preheat and Interpass Temperature1 Out-of-Position Group Stick Electrode Typical Operating ProceduresHigh Speed Group High Deposition GroupLow Hydrogen, Low Alloy Steel Group Low Hydrogen GroupFleetweld 5P Shield-Arc Fleetweld 5P+ Fleetweld JetweldFleetweld Fleetweld 35LS Jetweld Shield-Arc 70+ Shield-Arc HYP+Electric Shock can kill Fumes and Gases can be dangerous For Electrically powered Electric and Magnetic Fields Stick C2.410 12/04