Baoshan Iron & Steel Co., Ltd.

Commscope Connectivity UK Limited

Nokia Shanghai Bell Co., Ltd

Commscope Telecommunications (shanghai) Co. Ltd.

Junkai Wang

Jian Long Yang

Ian Miles Standish

Guodong Xu

Ruizhi Wang

Yunan Wang

Shan Gao

Zhigang Ma

Caiyi Zhang

David James Mather

Stephen Lambourn

Alan Cook

Zhichao Zhang

Shuangcheng Wang

Jian Yang

Ian Miles Standsih

Lee Holloway

Quanshe Sun

Bing Mei

A thick steel plate for high heat input welding and having great heat-affected area toughness and a manufacturing method therefor, comprising the steps of smelting, casting, rolling, and cooling. Chemical composition is properly controlled for the steel plate and satisfies 1&#x2264;Ti/N&#x2264;6 and Mg/Ti&#x3e;0.017, where effective S content in steel=S&#x2212;1.3 Mg&#x2212;0.8 Ca&#x2212;0.34 REM&#x2212;0.35 Zr, and effective S content in steel: 0.0003-0.003%; finely dispersed inclusions may be formed in the steel plate, and the amount of composite inclusion MgO+TiO+MnS in the steel plate is controlled at a proportion greater than or equal to 5%. The tensile strength of a base material so acquired is &#x2265;510 MPa, insofar as welding input energy is 200-400 kJ/cm, the average Charpy impact work of the steel plate at &#x2212;40 &#xb0; C. is 100 J or more, at the same time, the average Charpy aging impact work of the base material of &#xbd; thickness at &#x2212;40&#xb0; C. is 46 J or more.

Thick steel plate for high heat input welding and having great heat-affected area toughness and manufacturing method therefor

A thick steel plate for high heat input welding and having great heat-affected area toughness and a manufacturing method therefor, comprising the steps of smelting, casting, rolling, and cooling. Also, the chemical composition of the steel plate satisfies 1&#x2264;Ti/N&#x2264;6 and (Ca+REM+Zr)/Al&#x2265;0.11, where the effective S content in steel=S-0.8Ca-0.34REM-0.35Zr. and the effective S content in steel: 0.0006-0.005%; finely dispersed inclusions may be formed, and the amount of composite inclusion CaO+AlO+MnS+TiN in the steel plate is at a proportion of &#x2265;12%. With respect to welding in which the thickness of the steel plate is 50-70 mm, the tensile strength of a base material is &#x2265;510 MPa. and welding input energy is 200-400 kJ/cm, the average Charpy impact work of a welding heat-affected area of the steel plate at &#x2212;40&#xb0; C. is 100 J or more, and at the same time, the average Charpy aging impact work of the base material of &#xbd; thickness at &#x2212;40&#xb0; C. is 46 J or more.

An installing unit, installing assembly of an antenna and an installing method are provided. An installing unit according to the invention is provided, wherein the installing unit comprises a cylindrical structure including an inner cylindrical wall, which has a first clip structure for connecting a first other part between said inner cylindrical wall and said outer cylindrical wall, and said outer cylindrical wall has a second clip structure thereon for connecting said installing unit to a second other part, and said installing unit can be connected to a third other part via rigid connection. Simultaneous blind insertion of multiple connectors in a closed frame, especially in a closed frame with a large area, can be realized, which improves the reliability of the active large-scale MIMO antenna and the efficiency of the installing process, reduce manpower as used, and increase the pass rate of installing.

Installing unit, bracket, installing assembly of an antenna, and an installing method

A connection assembly () includes a base structure (); a backplane () coupled to the base structure (), the backplane () including a first circuit board (); and a tray module () configured to couple to the backplane (). The tray module () includes a tray body () including a second circuit board (); and a bridge member () to which the tray body () is moveably coupled. The tray body () moves relative to the backplane () while the bridge member () remains stationary relative to the backplane (). Managed connectivity components () on the second circuit board () remain connected to the first circuit board () even while the tray body () is pivoting relative to the backplane ().

Managed connectivity in optical distribution frame

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Shanghai, China

Junkai Wang