During ASME SA106 C seamless pipe heat treatment, the ascending and descending temperature and temperature velocity should be strictly controlled ≤ 125 ℃ / h.
When heat treatment of the ASME SA106 C seamless pipe with two ends opening, heat preservation should be adopted by means of both ends plugging, the insulation material is refractories.
When the open workpiece with ASME SA106 C seamless pipe larger size is heat-treated, the internal fixed support should be used for heat preservation, and the insulating material is refractories.
When heat treatment of a closed ASME SA106 C seamless pipe more than 6 meters is carried out, the internal two ends of the ASME SA106 C seamless pipe shall be sealed and the heat preservation material shall be water-soluble paper, and the distance between the sealing material and the treatment area shall be controlled according to the diameter of the ASME SA106 C seamless pipe and the treatment temperature to avoid burning failure.
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