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Color of titanium pipe weld surfaces and treatment methods

2018-05-22View Original

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Serial Number Surface Color Pass/Fail Criteria Argon Protection Treatment Method 1 Silver-white Pass Good No treatment 2 Golden-yellow (dense) Pass Fair No treatment 3 Blue Used for unimportant areas Slightly poor Remove the blue color 4 Purple Can be used in atmospheric pressure containers Poor Remove the purple color; if it cannot be removed, repair is required 5 Gray Fail Poor Repair required 6 Dark gray Fail Poor Repair required 7 Silver-white Fail Poor Repair required 8 Yellow powder Fail Poor Repair required

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