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我厂生产的400吨/时锅炉中,采用了φ377/φ159过渡管零件(如图1)。材料为12CrMoV,要求用外径为φ377、壁厚为40毫米的管材锻成。
I plant 400 tons / hour boiler, the use of φ377 / φ159 transitional pipe parts (Figure 1). The material is 12CrMoV, requiring forging with an outer diameter of φ377 and a wall thickness of 40 mm.