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五万千瓦船用汽轮机隔板是其重要零件之一,对其质量要严格要求。该零件的锻件图及有关工艺概况如图所示: 材料:(15CrMoA-Ⅳ/50-HTO33-73(钢锭) 锻件重量:210公斤工艺设备:3吨自由锻锤。始锻温度:1200℃终锻温度:900—820℃。冷却方式:空冷。工艺路线:锻造℃—调质—取样。过去曾一次锻出隔板体锻件25件。该批锻件的宏观缺陷表现为:沿φ712圆周的鼓形
The 50,000-kilowatt marine turbine baffle is one of its important parts, and its quality should be strictly required. The parts of the forgings and related process overview as shown: Material: (15CrMoA-Ⅳ / 50-HTO33-73 (ingot) Forging weight: 210 kg Process Equipment: 3 tons of free forging hammer. Forging temperature: 1200 ℃ final Forging temperature: 900-820 ℃. Cooling: air cooling. Process route: Forging ℃ - quenching - sampling. In the past had a forging plate forging pieces 25. The batch of forgings macro defects as follows: φ712 circumference of the drum shape