Good morning, students.
Silakan mulai salin contoh teks prosedur dalam bahasa Inggris ini ke dalam buku masing-masing mulai dari teks di bawah ini:
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Title: How to Safely Operate an Electric Welding Machine
Objective: This procedure explains how to safely operate an electric welding machine for basic welding tasks.
Materials Needed:
- Electric welding machine
- Welding electrodes
- Welding gloves
- Welding helmet
- Safety goggles
- Welding jacket
- Ground clamp
- Workpiece
- Chipping hammer
- Wire brush
Steps:
Prepare the Work Area
- Ensure the work area is clean, dry, and free of any flammable materials. Set up the welding machine on a stable surface and make sure there is adequate ventilation to avoid inhaling harmful fumes.
Wear Safety Gear
- Put on the required safety gear: welding gloves, welding helmet, safety goggles, and a welding jacket. These will protect your eyes, skin, and hands from sparks, heat, and UV radiation.
Set Up the Welding Machine
- Connect the welding machine to a power source. Attach the ground clamp to the workpiece or welding table to complete the circuit. Select the appropriate electrode type and size for the material you will be welding.
Prepare the Workpiece
- Clean the area of the workpiece where the weld will be made. Use a wire brush to remove any rust, dirt, or oil from the surface to ensure a clean, strong weld.
Adjust the Machine Settings
- Set the welding machine to the recommended current (amps) based on the electrode size and material thickness. This setting is usually indicated in the machine's user manual.
Begin Welding
- Hold the electrode holder firmly with one hand and place the electrode on the workpiece. Start the arc by slightly tapping the electrode against the metal surface. Maintain a steady hand and move the electrode along the joint, creating a consistent weld bead.
Monitor the Welding Process
- Pay attention to the weld pool and the welding arc as you work. If the arc becomes unstable, adjust the machine settings or the angle of the electrode to restore a smooth weld.
Stop the Weld
- Once the welding is complete, slowly pull the electrode away from the workpiece. Allow the weld to cool before inspecting the joint.
Clean Up
- Use a chipping hammer and wire brush to remove slag and clean the welded area. Inspect the weld for any defects or weak spots. Dispose of any waste material safely.
Turn Off the Machine
- Turn off the welding machine and disconnect the power supply. Store the machine and all tools in a safe place.