采用双辊浇铸带钢的Castrip工艺。

世界上第一条商业化铸带生产线具有以下特征：能从钢水直接生产0．7—2．0mm(0．028—0．080英寸）厚的碳钢和不锈钢带钢产品。带钢宽为1000-2000mm(39-79英寸），经过简单的热轧，或不经热轧和冷轧处理。     

磨粒磨损对电动潜油泵的影响

电动潜油泵是一种高速运转装置,它在油井内的工作寿命取决于在生产液中磨粒的类型和数量。本文陈述了在特殊磨料试验回路中进行的一系列试验。在实验中磨粒的尺寸和数量随着通过电潜泵液流的流速变化。本文还查阅了有关砂柱产生的最新文献和研究了在砂粒尺寸测量方面的某些实际问题。     

全球信息基础设施和国家信息基础设施的总体构想

本文论及了全球信息基础设施和国家信息基础设施将给全球社会和经济带来的利益，并描述了它们的发展蓝图。     

LASER CLADDED TiCN COATINGS ON THE SURFACE OF TTTANIUM

Laser cladded coatings of TiCN were produced on the surface of titanium. To obtain the optimal techniques, several conditions were tested by varying the laser scanning rate. The choice of shielding gas was also studied. The cladded coatings were then evaluated from the surface mechanics point of view based on their microhardness. The microstructure of some interesting samples was investigated by optical micrographs （OM）. The results showed that under the condition of fixed pulse frequency and pulse width, the laser scanning rate and the shielding gas are the main factors influencing the components of coatings. TiCN coatings were decompounded and oxidized during the cladding process in the condition of no shielding gas of N2. X-ray diffraction results indicated that the composite coatings composed of TiCN, TiC, Ti2N, and TiO2 were produced using appropriate techniques. The results indicated that the best condition in terms of the surface microhardness is obtained when the scanning rate is 1.5mm/s, the pulse frequency is 15Hz, the pulse width is 3.0ms, and N2 is chosen as the shielding gas. The microhardness of the composite coatings is about 1331kg · mm^-2, which is about 4 times that of the substrate. The optical micrographs indicated that the cladding zone is made up of TiCN, TiO2 and some interdendritic Ti, but the diffusion zone mainly consists of the dendrites phase, and the cladded depth is about 80μm, which is more than 2 times that of the laser nitrided sample. There were no microcracks or air bubbles in the cladded sample, which was cladded using the above optimal techniques.     

极致之地——冰岛的照明设计新趋势-蓝礁湖温泉

冰岛绝非寻常之地，这座大西洋上邻近北极固的小岛仿佛集世上所有极致之美于一身一水与火在此交融，随处可见，更为引人入胜的是，这里拥有地球上最神奇的自然光照环境：极昼、极夜和极光。冰岛的照明设计师古让·L．斯格森（GuδjonL．Sigurosson）为我们描述了关于冰岛的各种天然光效以及那里最新的照明设计趋势，美丽的蓝礁湖温泉中心就是最好的例子。[编者按]     

硅压力传感器的应力隔离封装

<正> 当封装压力传感器时,由于传感器芯片和管壳材料之间热膨胀系数的差别,在封接部位引入应力。这一封装应力引起传感器芯片硅膜     

电磁线绝缘的剥除方法

介绍了电磁线绝缘漆膜的半自动和自动的剥除方法。并对其中的化学法、砂轮法和刮刀法的优缺点和对不同线规及线型的适应性进行了讨论。