Safety of machinery - safety requirements for fluid power systems and their components - hydraulics ; german version en 982 : 1996 机械安全性.液压系统及其部件的安全要求.液压装置
Hydraulic cable cutting devices - devices to be used on electrical installations with nominal voltage up to ac 30 kv 电缆切割液压装置.用于公称电压在交流30kv以下电气设施的电缆切割装置
Firstly , it analyzes the whole framework of the valve and the working theory of the device of electromagnetism and hydraulic pressure 首先，本文分析了电磁阀的整体机构，并阐述了电磁阀由电磁控制和液压装置来实现的工作原理。
The main products of the plant are hydraulic values , vane pumps , gear pumps , piston pumps , cylinders , hydraulic systems and installations . the technical level is the leading level in china and being close to the international level 榆液厂主要产品有液压阀叶片泵轮泵柱塞泵液压缸液压站系统及液压装置等六大类产品。
During the period of the structure designing , the mode of modularization , integration , miniaturization and the structure optimization is introduced to obtain the goal of simplifying the pipeline , reducing the leak of the hydraulic cylinder , decreasing the manufacture and maintenance costs of this manipulator system , overcoming the shortcomings of some traditional hydraulic systems effectively . the practicability , flexibility and reliability of this advanced hydraulic joint is demonstrated according to its " remarkable characteristic of decoupling , tracking , avoiding the obstacle 在结构设计中，融入了模块化、小型化、集成化与结构优化等设计思想，达到了简化系统管路、控制系统泄漏、降低系统制造与维护成本等设计目的，有效地克服了传统液压装置的不足；通过对该关节的解耦特性、跟踪特性、避障特性进行分析和论证，进一步明确了这种新型关节的先进性、实用性与可靠性。
Developing for more than 30 years , the plant has 1100 sets of machines and processing equipment , including 773 sets main processing equipment and 44 sets of high precision mcmachines . the plant has total assets 425 million yuan , net assets 106 million yuan , regional fixed assets 159 million yuan , net fixed assets 96 million yuan . the main products of the plant are hydraulic valves , vane pumps , gear pumps , piston pumps , cylinders , hydraulic systems and installations 榆液厂已拥有机器和加工设备1100台，主要加工设备773台，榆液厂主要产品有液压阀叶片泵轮泵柱塞泵液压缸液压站系统及液压装置等六大类产品，企业连续多年被评为山西省优秀企业， “八五”期间被评为经贸技术改造先进单位。
At present , the plant is the largest base for producing hydraulic component is china and also onto the key enterprises in national engineering industry . there are 2 , 258 employees , including more than 500technicians , eleven divisions , one technical developing center and two joint ventures ; yuci yuken hydraulics co . ltd . and yuci yinan hydraulic pumps co . ltd . in the period of 榆液厂主要产品有液压阀叶片泵轮泵柱塞泵液压泵液压站系统及液压装置等六大类产品，产品技术水平国内属领先水平，企业液压产品生产能力达
Crowd out unit using screw that the big proportion of length and diameter , the effictiveness of plasticizing is very good . the head of mould using advanced electromotive system and hydraulic system , the degree of automatization is high , acting facillitately and the high of product efficiency . the head of mould using heating method inside , adjusting easily , the thickness of sheet is very precise , and the availability of heating is high , and saving the electricity 挤出机采用大长径比螺杆，塑化效果好模头换网部分采用先进电动液压装置，自动化程度高，操作方便生产效率高模头采用内加热式，具有调模容易板片厚薄更精确均匀，更为突出的是热利用率高省电节能温度控制采用
