分析了热穿孔过程中毛管裂纹的产生及扩展机理。推荐了生产该钢种的合理工艺。
The rational process for producing the steel is recommended on the basis of analyzing the emergence and developing mechanism of cracks in shells of the steel during hot piercing.
对穿无缝钢管热穿孔顶头的失效机制和使用状况进行了分析研究，认为穿孔顶头的失效形式主要表现为顶头塌鼻、粘钢、 开裂。
The failure mechanism and service status quo of hot piercer point in seamless steel tube were analyzed and its failure was mainly caused by piercer point collapsing nose, sticking steel and cracking.
1970年代初，我曾在计算机科学课程中学习使用穿孔卡在一台IBM计算机上运行basic程序，那台计算机又大又热，以致需要拥有自备的冷却房间。
In an early 1970s computer-science class, I learned to organize punch CARDS to run basic programs on an IBM computer so big and hot that it had its own supercooled building.
应用推荐