【摘要】 介绍了用新型组合模具加工方法研制中间带有缩径段的Zr-4合金核电站控制棒导向管,这种方法不需要专用设备、成型简便,加工成本低、有利于批量生产,测试结果表明,加工出的成品几何尺寸精度、机械性能、腐蚀性能、晶粒度和氢化物取向等指标均可满足堆内使用的技术要求。更多还原

【Abstract】 A new built-up mould method to process Zr-4 alloy guide tube with varied diameter at the middle of tube is introduced. The guide tube is used in nuclear power plants for guiding the control rods. This method has many advantages such as simple in forming, low cost of processing, no need of special devices and favour of batch processing. The test results show that the accura - cy of size, mechanical properties, resistance to corrosion, grain size and hydro-genate orientation of the end-products have met the technical needs for nuclear reactor operation.更多还原