Welder Red Seal · Question
E7018 electrodes are classified as low-hydrogen electrodes. What is the standard procedure for storing them after the hermetically sealed container is opened?
To maintain their low-hydrogen properties, E7018 electrodes must be stored in a heated oven at a specific temperature (typically 120°C or higher) after the seal
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Question: E7018 electrodes are classified as low-hydrogen electrodes. What is the standard procedure for storing them after the hermetically sealed container is opened?
Answer options:
- Store them in a dry, open-air shelf ✅ Store them in a baking oven at 120°C to 200°C
- Dip them in water to keep the flux from drying out
- Store them at room temperature in their original cardboard box
Correct answer: Store them in a baking oven at 120°C to 200°C
Explanation: To maintain their low-hydrogen properties, E7018 electrodes must be stored in a heated oven at a specific temperature (typically 120°C or higher) after the sealed container is opened to prevent them from absorbing atmospheric moisture.
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