An electric welder works by creating a high-temperature arc between the positive and negative poles during an instantaneous short circuit. This arc melts the solder and the materials being welded, allowing them to fuse together. The basic design is a powerful transformer, making it simple yet effective. Welding machines can be categorized into two types based on their power output: AC (Alternating Current) and DC (Direct Current). They operate using the principle of inductance, where turning the inductor on and off creates a significant voltage change. This high-voltage arc is then used to melt the metal at the electrode, enabling a strong bond between the components.
Regular maintenance is essential for ensuring the safe and efficient operation of welding machines. Neglecting proper care can lead to equipment failure or even safety hazards. Here are some daily maintenance tips to keep your welding machine in optimal condition:
1. Inspect the welder’s output wiring for correct specifications, firm connections, and ensure the outlet direction is nearly vertical with an angle greater than 70° from the horizontal.
2. Check that all screws at the cable connections are properly tightened. Use hexagonal bolts M10×30, and make sure flat and spring washers are present without any signs of rust or oxidation.
3. Ensure the exposed length of the wiring is less than 10mm to prevent accidental contact or damage.
4. Confirm that the welder’s casing is grounded securely to avoid electrical risks.
5. Verify that the power supply is stable and that the base metal grounding meets the required standards.
6. Check that the cable connections are well-insulated and taped if necessary.
7. Make sure the shielding on the power cable, welding cable, and internal wiring is intact and undamaged.
8. Test the cooling fan to ensure it rotates smoothly and operates normally.
9. Examine the power switch, indicator lights, and adjustment knobs. Ensure the ammeter and voltmeter pointers move freely and are accurate. Also, check that the surface is clean, crack-free, and the cover is secure.
10. Inspect the COâ‚‚ gas cylinder for leaks to ensure proper functionality during welding operations.
11. Check the overall appearance of the welder for any signs of serious deformation or damage.
12. Ensure that the hexagon socket head screws at the connection between the COâ‚‚ welding gun and wire feeder are tight, and that the torch is not loose.
13. Confirm that the cables and air tubes on the COâ‚‚ wire feeder are properly wrapped and fixed in place.
14. Regularly check the correction wheel and feed wheel of the COâ‚‚ wire feeder, replacing them as needed.
15. Verify that the motor is securely fastened and that the insulation coil is intact and undamaged.
16. Check the remote control box on the COâ‚‚ wire feeder for any looseness or instability.
17. When installing the COâ‚‚ welding torch, ensure the switch plug is fully tightened and inserted into the guide groove. After installation, secure the fastening screw to prevent movement during use.
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