Stimmen - 2, Durchschnittliche Bewertung: 4 ( )

Hersteller: Campbell Hausfeld Dateigröße: 236.72 kb Dateiname: 2a3b10e8-13a9-4de2-acf4-6ec8dde5d329.pdf Unterrichtssprache:

A proper arc should be no longer then the diameter of the rod. The sound of a proper arc is a steady, crisp sizzle, similar to bacon frying. TRAVEL SPEED The travel speed is the rate at which the electrode is moved across the weld W Workpiece Normal Amps, Arc Length, Speed Amperage Too Low Amperage Too High Speed Too Fast Speed Too Slow Arc Length Too Long Figure 10 - Weld Appearance Arc Length Too Short 6 Models WS0900, WS0950, WS1000 and WS1020 Models WS0900, WS0950, WS1000 and WS1020 area (See Figure 10). When the speed is too fast, the bead is narrow and bead ripples are pointed as shown. When the speed is to slow, the weld metal piles up and the bead is high and wide. To control travel speed, watch the width of the weld bead (not the arc) when welding. The weld bead is the orange, molten metal behind the arc. The width should be approximately twice the diameter of the welding rod. Control travel speed to obtain a consistent bead width. SLAG REMOVAL Wear ANSI approved safety glasses (ANSI Standard Z87.1) and protective clothing when removing slag. Hot, flying debris can cause personal injury to anyone in the area. After completing the weld, wait for the welded sections to cool. A protective coating called slag now covers the weld bead which prevents contaminants in the air from reacting with the molten metal. Once the weld cools to the point that it is no longer glowing red, the slag can be removed. Removal is done with a chipping hammer. Lightly tap the slag with the hammer and break it loose from the weld bead. The final clean-up is done with a wire brush. When making multiple weld passes, remove the slag before each pass. WELDING POSITIONS Four basic welding positions can be used; flat, horizontal, vertical, and overhead. Welding in the flat position is easier than any of the others because welding speed can be increased, the molten metal has less tendency to run, better penetration can be achieved, and the work is less fatiguing. Other positions require different techniques such as a weaving pass, circular pass, and jogging. A higher skill level is required to complete these welds. All work should be performed in the flat position if possible. For specific applications, consult an arc welding handbook. WELD PASSES Sometimes more then one pass is necessary to fill the joint. The root pass is first, followed by filler passes and the cover pass (See Figure 11). If the pieces are thick, it may be necessary to bevel the edges that are joined at a 60. angle. Remember to remove the slag before each pass. Figure 11 - Weld Passes Cover Filler Root Figure 12 - Multiple Weld Passes To Work Clamp Thermal Breaker To Electrode Holder On/Off Switch S1 Plug L1 4 1 5 6 2 L2 3 S2 S2 Thermal Breaker Black White Ground Green All Models Except WS0900 Figure 13 - Wiring Schematic 7 For Information About This Product, Call 1-800-746-5641 Troubleshooting Chart - Welder Symptom Possible Cause(s) Corrective Action Welder does not hum when turned on 1. No power at receptacle 2. Broken or damaged power cable 1. Check circuit fuse or circuit breaker 2. Power cable requires service Welder hums but does not weld 1. Inadequate current at electrode 2. Poor connections at welder 1. Check work clamp, cable and connection to work piece. Check electrode cable and clamp 2. Check all welder external connections Welder gives trickle shocks 1. Accidental contact with work piece 2. Current leakage caused by moist clothing or work area 1. Avoid contact with work piece 2. Make sure clothing and work area are dry Welder overheats - blows fuses, trips circuit breaker 1. Use of extension cord 2. Electrode diameter too large 3. Overloaded circuit 1. If possible, relocated welder to avoid use of extension cord. If relocation of welder is not possible, use thicker (lower gauge number) extension cord 2. Use smaller diameter electrode 3. Welder requires a dedicated 115V circuit Arc difficult to strike 1. Wrong type of electrode 2. Electrode diameter too large 3. Work piece not properly grounded 4. Heavy loads making power line voltage low 1. Verify that electrode is for alternating current (AC) use 2. Use smaller diameter electrode 3. Verify proper grounding. (No paint, varnish or corrosion) 4. Run welder on dedicated 115V circuit Troubleshooting Chart - Welds Symptom Possible Cause(s) Corrective Action Bead is intermittently too thin or too thick 1. Inconsistent travel speed 2. Output amp setting incorrect 1. Carefully watch and control the width of the molten weld bead 2. Adjust output amp setting or change to smaller diameter electrode Ragged depressions at edge of weld 1. Travel speed too fast 2. Arc length too short 3. Output amp setting too high 1. Watch orange molten weld puddle and control bead width 2. Practice running electrode across workpiece with welder OFF 3. Reduce output amp setting Weld bead does not penetrate workpiece 1. Inconsistent travel speed 2. Output amp setting too low 3. Electrode diameter too large 1. Decrease and maintain...

Herunterladen

Geben Sie zwei Ziffern: