CAJ | 학술논문

目的：为商用聚变堆包层第一壁生产提供新的加工思路和参考方法。方法在不同工艺参数条件下进行了某牌号低活化马氏体钢U形件的成形实验；分析了挤压温度、挤压速度和圆角半径对某牌号低活化马氏体钢U形件成形效果的影响。结果试件的尺寸精度达到要求,U型流道直壁厚度尺寸误差不大于7.6%,直壁高度误差不大于8.0%,截面面积误差小于4.5%,保证了流道的等截面性。结论该工艺提高了试件的成形尺寸精度和材料的利用率,具有较大的理论和实践意义。
목적：위상용취변퇴포층제일벽생산제공신적가공사로화삼고방법。방법재불동공예삼수조건하진행료모패호저활화마씨체강U형건적성형실험；분석료제압온도、제압속도화원각반경대모패호저활화마씨체강U형건성형효과적영향。결과시건적척촌정도체도요구,U형류도직벽후도척촌오차불대우7.6%,직벽고도오차불대우8.0%,절면면적오차소우4.5%,보증료류도적등절면성。결론해공예제고료시건적성형척촌정도화재료적이용솔,구유교대적이론화실천의의。
ABSTRACT:The aim of this work was to provide new processing ideas and reference methods for production of the first wall of commercial fusion reactor blanket. The forming experiments of low activation martensitic steel U-shaped part were conducted under different process parameters. The influences of different extrusion temperature, extrusion speed and fillet radius on the forming result of low activation martensitic steel U-shaped part were analyzed. The dimensional precision of molded parts met the requirements. The wall thickness dimension error of the U-shaped part was no more than 7. 6%, and the straight wall height error was no more than 8. 0%, and the error of cross-sectional area was less than 4. 5%, guarantee-ing the equal section of the flow passage. In conclusion, this process improved the forming dimensional precision of the specimens and the utilization rate of material, and has great theoretical and practical significance.