简介:摘 要 :本文详细介绍分析B型地铁CW2100(D)型无摇枕踏面制动制造工艺过程及难点,通过采用合理的工艺方法,保质保量的完成了转向架所有工序的顺利完成。
简介:摘要:由于渡槽为高墩身、大跨度现浇槽身,且施工现场地形为陡峭山谷地带,槽身混凝土施工采用收折式移动平台进行支撑浇筑,槽身模板若采用常规吊装及转运方法无法满足施工需要。现场通过安装门式起重机、自制小车、卷扬机等对现浇箱梁式槽身侧、内模板进行分块转运。该方法具有模板拆卸、转运、安装循环周期短,可连续、同步、多工种同时作业等优势,有效提高现场作业效率,保障施工安全。
简介:Your eight years of loyal service in the General Affairs Department have been appreciated by the leadership of the company. Your transfer is completely due to the need of company. You have known that many thefts have recently taken place that have caused heavy losses to our company. We trust that with your appointment to this post,the Director of your Department has already talked to you about the change in your work. We have arranged to appoint you as section supervisor in the Security Department at a salary of US$ a month (20% increase) as from Tuesday,Mr. Wang
简介:Your eight years of loyal service in the General Affairs Department have been appreciated by the leadership of the company. Your transfer is completely due to the need of company. You have known that many thefts have recently taken place that have caused heavy losses to our company. We trust that with your appointment to this post,the Director of your Department has already talked to you about the change in your work. We have arranged to appoint you as section supervisor in the Security Department at a salary of US$ a month (20% increase) as from Tuesday,Mr. Wang
简介:GJ20146086典型液压凿岩台车防卡钎系统分析及探究[刊,中]/周浩…//矿山机械.—2013,(3).—17--21介绍了几种典型液压凿岩台车防卡钎技术,并分析探究。图5参4GJ20146087气动凿岩机试验台的改进设计[刊,中]/鲜继红…//凿岩机械与气动工具.—2013,(1).—31~33介绍了一种加装气动恒压裟置的气动凿岩机性能试验台。图3参2GJ20146088液压凿岩的动力特征分析研究[刊,中]/王书安…//凿岩机械与气动工具.—2013,(1).—33~37介绍了旋转.冲击破岩原理,分析了液压凿岩的动力特征、液压凿岩机钎杆的工作应力和疲劳寿命、液压凿岩的能量传递等,进行了现场实验,得出了实用的结论,可对全液压凿岩钻车选用液压凿岩机和钎具提供借鉴。