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发明公开
CN105344901A 直径大于或等于1800mm的高温合金盘形锻件的制造方法 有权

直径大于或等于1800mm的高温合金盘形锻件的制造方法
摘要：
本发明涉及锻造技术领域，提供了一种直径大于或等于1800mm的高温合金盘形锻件的制造方法，包括以下步骤：坯料在1000～1050℃的环境中保温18～20小时；压头以25～30mm/s的速度将坯料镦粗至1100～1120mm高；压头速度减至15～20mm/s，同时坯料镦粗至900～920mm高；压头以15～20mm/s的速度将坯料镦粗至480～520mm高；压头速度减至0，同时将坯料镦粗至400～440mm高；中间坯加热至1000～1050℃，保温12～14小时；压头以10～12mm/s的速度将坯料镦粗至280～320mm高；压头的速度减至5～7mm/s，同时坯料镦粗至180～220mm高；压头以5～7mm/s的速度将坯料镦粗至170～200mm高；压头的速度减至0，同时将坯料镦粗至设计尺寸。上述方法，使锻件的内部组织均匀，力学性能稳定，强度高，能够很好地满足使用需求。
摘要（英）：

The invention relates to the technical field of forging, and provides a manufacturing method of a high-temperature alloy disc-shaped forging with a diameter greater than or equal to 1800 mm. The manufacturing method comprises the following steps: a blank is insulated by 18-20 hours in an environment of 1000-1050 DEG C; the blank is upset to a height of 1100-1120 mm by a pressing head with a speed of 25-30 mm/s; the speed of the pressing head is reduced to 15-20 mm/s, and meanwhile, the blank is upset to a height of 900-920 mm; the blank is upset to a height of 480-520 mm by the pressing head with a speed of 15-20 mm/s; the speed of the pressing head is reduced to 0, and meanwhile, the blank is upset to a temperature of 400-440 mm; a middle blank is heated to a temperature of 1000-1050 DEG C, and is insulated by 12-14 hours; the blank is upset to a height of 280-320 mm by the pressing head with a speed of 10-12 mm/s; the speed of the pressing head is reduced to 5-7 mm/s, and meanwhile, the blank is upset to a height of 180-220 mm; the blank is upset to a height of 170-200 mm by the pressing head with a speed of 5-7 mm/s; and the speed of the pressing head is reduced to 0, and meanwhile, the blank is upset to a designed size. The method enables the forging to be uniform in internal structure, stable in mechanical performance and high in strength, and can preferably satisfy the use demands.

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