The staff should be familiar with the welding process of 630mm hdpe pipe welder:
1. Continuous flash welding: continuous flashing, upsetting, and heating treatment with electricity on the welding machine after upsetting;
2. Preheating flash welding: one flash, firing preheating, second flash, upsetting.
2. The operator must be familiar with the mechanical and technical properties used (such as the transformer series, welding section, welding times, upsetting force, feeding stroke), and the location and application of the main components.
3. The operator should select welding parameters according to the mechanical properties and welding objects.
4. Preparation of welding parts: Remove rust, oil and dust within 120 mm of the end of the steel bar. If the end is bent, it should be straightened or cut off.
Five, 630mm hdpe pipe welder should be installed indoors and should have reliable grounding (or zero). When multiple 630mm hdpe pipe welders are installed together, the distance between machines should be at least 3 meters. and connected to different power sources respectively. Each should have its own control switch. The wires from the switch box to the fuselage should be covered with protective sleeves. The cross-section of the wire shall not be less than the specified cross-sectional area.
6. All parts of the 630mm hdpe pipe welder should be checked before operation.
1. Whether the mechanical parts such as the pressure lever are flexible;
2. Whether the various fixtures are firm;
3. Is the power supply and water supply normal?
7. The flammable materials near the operation site should be removed and fire-fighting equipment should be provided. Operators must wear protective goggles and gloves, and the ground should be padded with wooden boards or other insulating materials.
8. The operator must correctly adjust and use the welding current to suit the welded steel cross-section. It is strictly forbidden to weld rebars exceeding the specified diameter.
9. The contact points of the circuit breaker should be wiped with sandpaper frequently, and the electrodes should be regularly filed. All screws of the secondary circuit should be tightened regularly to avoid overheating.
10. The cooling water temperature should not exceed 40℃, and the drainage should meet the specified requirements.
11. Longer steel bars should be placed on the bracket when butt welding. Personnel who randomly cooperate with the handling of steel bars should pay attention to prevent spark burns. When handling, be careful that the welding area is hot.
12. The welded semi-finished products should be stacked neatly.
13. A baffle should be set up in the flashing area, and other personnel are prohibited from entering during welding.
14. After the welding work is completed in winter, the cooling water in the welding machine should be drained to avoid freezing the cooling system.
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