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Requirements for bolt processing of fatigue-resistant containers

2024-07-27View Original

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Bolt type: Double-ended stud with a thin shaft in the middle. Material: Heat-treated; Thread type: The thread shall be V-shaped and rolled; the radius of curvature at the root of the thread shall be not less than 0.076 mm ; Roundness requirement: The threaded section and the smooth shaft section of the stud must have an arc-shaped transition, with R being not less than 0.06 times d2 ; Inspection requirements: 100% ultrasonic inspection of the steel rod prior to thread processing, and 100% inspection of the thread surface after processing ;

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