模压法控制套圈淬火变形

我厂生产的2687/640轴承由一个座圈、两个轴圈组成,形状如图1所示。材料为GCr15SiMn,金相及硬度按JB1255-81标准规定要求(工序检查以试块为准,终检在轴圈上进行)。脱碳层单边<0.1mm,变形:椭圆<1.1mm,挠曲<0.90mm。     

桑植-石门复向斜成藏条件探讨

从烃源岩、储层、盖层(保存条件)及圈闭等因素入手．探讨了桑植-石门复向斜地区震旦-志留纪地层的油气成藏特征。认为研究区具有良好的生烃条件和较好的储集条件，在断层不发育地区油气保存条件良好。岩性圈闭形成在三叠系以前的古生代地层中．而构造圈闭则受燕山运动影响。结合生烃史与区域构造演化规律来看．研究区东北部是油气的有利聚集地区。     

浅议流波水电站水能设计中的几个问题

在流波水电水能设计中，采用结合库容，降低坝高和投资并增加了调节库容和效益；采用半地下式厂房，以较大的梯级重叠水头选择最低发电尾水位，增加了发电水头和效益。     

Preparation and Characterization of Y_3Sc_2Ga3O（12） Nano-Polycrystalline Powders by Co-Precipitation Method

In order to grow high-quality gallium garnet crystals,polycrystalline materials were used as starting materials.YSGG precursor was synthesized by co-precipitation method using aqueous ammonia as a precipitator,and the precursor was then sintered at different temperatures.The results showed that the feasible pH range was 8.3～9.84 in the process of co-precipitation reaction.The YSGG precursor and the powders sintered at different temperatures were characterized by IR,XRD and TEM methods.It was found that the precursor transformed to pure YSGG polycrystalline phase at 800 ℃.YSGG nano-polycrystalline powders sintered at 800～1000 ℃ were well dispersed and the sizes of the YSGG grains were about 40～100 nm.     

串行总线及器件在监控分站中的应用

分析了串行总线技术及其器件，指出了其在本安全站中的优点及可能性。     

新功能需求下的新闻资讯直播演播室设计

四川广播电视集团2005年将原新闻综合频道改为新闻资讯频道，并建设4讯道的新闻资讯频道开放式直播演播室。演播室在原写字间的条件下进行改造，克服了层高低等问题，以导控室与非线性编辑室，播出部显示屏为背景，具有较为浓厚的现代气息，本文对演播室的建设情况进行了介绍。