强度级别X70大直径钢管用厚板钢材的生产

亚速钢公司生产名牌品种和尺寸品种众多的K52到K60强度级别大直径天然气输送管用厚板钢材，供给乌克兰和俄罗斯企业一哈尔崔兹斯克钢管厂、维克苏钢铁厂、伏尔加钢管厂和其它厂，而同时强度级别从X42到X70，主要提供给国外远方的用户一印度、墨西哥、土耳其、东南亚。     

预加重和均衡技术在高速背板设计中的应用

着重介绍了高速背板设计中的趋肤效应，介电损耗噪声，阐述了预加重和均衡技术在工程中的应用，并得到了较好的效果：噪声、误码、抖动、眼图模板等均达到理想效果。     

钢水氧含量与钢水处理质量的关系

连铸钢的理化性能，以及成品使用性能，在极大程度上取决于非金属夹杂中的氧浓度。氧浓度首先取决于采用脱氧、变性处理、吹隋气的工艺，及浇铸前钢水炉外处理所有工艺进行的效果。本文以20钢为例，查明了总的氧浓度与夹杂物污染度和炉外处理工艺参数的关系，即与渣和钢水的氧化度(铝浓度)、温度等的关系。     

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。     

钢铁工业的能源消耗、成本及节约

钢铁工业的能源消耗、成本及节约［美］ＡｎｔｈｏｎｙＰ．Ｍａｒｔｏｃｃｉ１前言钢铁工业从一开始就致力于节能增效以降低成本。本文的目的就是进一步阐明节约能源的重要性，并论证由于能源与环境之间的关系更加密切，使得节能除能降低成本外，还能带来其他的益处。节能...     

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]