Manual do usuário Lincoln Electric Invertec STT II

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MIG WELDERS
® ®
Invertec STT II
®
Featuring the Surface Tension Transfer (STT) Process
Control Heat Input, Spatter and Fume
The revolutionary STT II power source combines high frequency inverter technology with
advanced Waveform Control Technology™ to provide a better welding solution than
traditional short arc MIG. Unlike CV MIG machines, the STT machine has no voltage control
knob. STT uses current controls to adjust the heat independent of the wire feed speed, so
changes in electrode extensi

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A CLOSER LOOK ® WHAT IS NEXTWELD ? provide the foundation for Nextweld innovations like Pulse-On- Nextweld integrates Lincoln’s technologies, process- ® ® Pulse™, Power Mode™, STT and ArcLink . Look for Nextweld es and products to create a comprehensive, flexible, user-friendly welding system that can increase for ultimate arc control, high efficiency/reliability and seamless system integration. efficiency and reduce fabrication costs. Waveform Control Technology™ and digital communications

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A CLOSER LOOK USING STT FOR OPEN ROOT WELDING Stick welding with cellulose electrodes provides good fusion Open root welding is used for pipe and single-sided plate welding in characteristics, but leaves deep situations that preclude welding from both sides of the material. This type wagon tracks (requiring more labor of welding is common in the petrochemical and process piping industries. for grinding), a very convex root weld, and a high hydrogen deposit. Advantages of STT Open Root Penetratio

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A CLOSER LOOK COMPARING STT TO WHEN TO USE STT UTILIZING STT ON THE STT II CONVENTIONAL PROCESSES Advantages of STT replacing short-arc STT is the process of choice for low heat Adjust WIRE FEED SPEED to: GMAW: input welds. • control the deposition rate • Significantly reduces lack of fusion • Good puddle control STT is also ideal for: Adjust PEAK CURRENT to: • Capable of producing consistent X-ray • Open root – pipe and plate • control the arc length quality welds • Thin gauge material – automo

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A CLOSER LOOK SYSTEM SELECTION Invertec STT II/STT 10 Deluxe System Top wire feeder user interface and added traction with four roll drive system. • Invertec STT II (K1525-1) • STT-10 Wire Feeder (K1560-2) • Power Source to Feeder Cable (K1758-10) • Drive Roll Kit [KP1505-035S for .035” (0.9mm) wire or KP1505-045S for .040-.045”(1.0-1.1mm) wire] • Magnum 200 Gun Package (K497-21) • Work Cable and Work Clamp STT-10 Wire Feeder Invertec STT II/LN-15 Portable System Rugged enclosed feeder - a great

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RECOMMENDED OPTIONS GENERAL OPTIONS GENERAL OPTIONS CONT. Power Source Remote Output Twist-Mate Cable Plug Control For connecting welding cable to Remotely controls peak and output terminal receptacles. For 1/0- 2 background current. 10 pin remote 2/0 (50-70mm ) cable. control with 25 ft. (7.6m) of cable. Order K852-70 Order K942-1 Twist-Mate Cable Plug Inverter and Wire Feeder Cart For connecting welding cable to Rear-wheeled cart includes front output terminal receptacles. For 2/0- 2 casters

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RECOMMENDED OPTIONS WIRE FEEDER OPTIONS CONT. LN-742 Wire Feeder The LN-742 semiautomatic wire feeder features a trigger mode selection for 2-step or 4-step and time controls for burnback, spot times and preflow/post-flow shielding gas. Two-roll wire drive for positive wire feeding. Dynamic braking system minimizes crater sticking problems. Tool-less quick release wire drive tension system for easy wire on gun changes. See Publication E8.20 LN-15 Control Cable Model LN-15 is one of the smallest

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INVERTEC® STT® II ORDER FORM PRODUCT DESCRIPTION ORDER NUMBER QUANTITY PRICE STT II (208/230/460/3/60) K1525-1 STT II International (200/220/380/415/440/415/3/50/60) K1526-1 STT II International (200/208/380/400/415/3/50/60) K1526-2 STT II CE-Approved (200/220/380/415/440/3/50/60) K1527-1 STT II CE-Approved (200/208/380/400/415/3/50/60) K1527-2 RECOMMENDED GENERAL OPTIONS Power Source Remote Output Control K942-1 Inverter and Wire Feeder Cart K1764-1 Dual Cylinder Kit K1702-1 STT II S