The hearth pressure , pipeline pressure and heat exchanger are protected and the important parameters are sent to the factory - level mis network . so far , with the said system , the purpose to improve the control accuracy and bloom heating quality , to 系统设计达到了提高控制精度、提高钢坯加热质量、减少氧化烧损、减少脱碳层厚度、减少环境污染,节约能源的目的,具有良好的经济效益和社会效益
2 . the severe erosion is due to the bad skeleton intensity and isolated w particals , which results from the poor reduce of w surface oxidation . when the arc works , the capillary iv is poor , so cu is splitting greatly ( 2 )严重烧损是由于w粉表面的氧化膜在烧结过程中不能很好的还原，致使骨架的烧结强度不高，大部分w颗粒以孤立的状态存在，毛细作用微弱， cu很容易喷溅，在反复的开断后， w颗粒剥离造成。
During the process of foundry charging mixing . the information of loss ratio and consistent chemical composition have been considered which can aid technologists to get the minimum cost mixing schedule for the foundry charging mixing 该系统使用方便，在配比过程考虑到了元素的烧损，这样一方面实现了准确的炉料配比，另一方面在保证化学成分在控制要求的条件下实现了成本的最低化对实际的铸件生产有着重要的作用。
The study in various switches with high voltage , high current , fast turn - on time , low jitter , low resistance , low inductance , low erode rate and being capable of steadily work with pulse repetition - rate , is currently a subject of growing interest 具有耐受高电压强电流、击穿时延短而分散小、电阻和电感小、电极烧损少以及能在重复脉冲下稳定工作的各种类型的开关元件的研制,是当前一个十分受重视的研究课题。
In order to study the burning of the oil film bearing in high speed wire - rod mill , on - line tested temperature and operating mode of oil film bearing in a domestic framework of finishing mill f15 were determined and a large number of valuable test data were obtained 摘要为了研究高速线材轧机油膜轴承烧损原因，对国内某高速线材精轧机f15机架油膜轴承载荷工况及工作温度进行了在线测试，获得了大量有价值的试验数据。
Abstract : the relationships between the residual strength of the tunnellining damage due to high temperature and ultrasonic velocity were studied on the basis of the experiments on the concrete and members of the tunnel the tunnel damaged by fire were discussed 文摘:在对隧道衬砌混凝土和构件进行实际烧损试验基础上,探讨了衬砌在高温作用后残余强度与超声波速之间的关系,以及超声检测技术用于测试隧道火灾损伤的适用性和和可靠性。
The mechanism of arc eroding for cuw60 / crcu integrated contact is the volatilization of cu under the arc working , then the particles of w were worn off the matrix , this phenomena is n ' t formed continuous skeleton during the connecting and cutting . such - and - such repeating resulted in the arc erosion of the contact , until invalidation ( 1 ) cuw60触头的烧损机理是以cu首先熔化喷溅，然后没有形成连续骨架的w颗粒在关合的磨损中脱落，这是一个烧损周期，如此的循环导致触头的烧损，直至失效。
Results show that the tube - burst is mainly due to the result of tube ' s long term overheating , while the main causes resultsing in overtemperature of the platen superheater are as follows ; ( 1 ) burn - out of superheater ' s pipe - grippers ; ( 2 ) some tube - sections are out of the row ; ( 3 ) unsuitable mode for adjusting the desuperheating water 结果表明：爆管主要是由于管子长期过热所致，而屏式过热器管卡烧损、个别管段出列、减温水调节方式不当是引起屏式过热器超温的主要原因。
In view of the problems in the design of the large andmedium - sized indoor substations built by guangzhou power bureau in recent years , points for attention in the design of indoor substations are expounded in terms of ventilation , cable channel , reservation of hangers and space for transportation and installation , ground wire , lighting for the whole substation , etc 弹性金属塑料瓦已在水电站普遍推广应用,在泵站中也已开始推广应用.制造和安装质量不合格同样会发生推力瓦烧损事故.改进安装操作方法,提高安装质量,是解决推力瓦烧损的有效途径之一
Switches play transmitting and cutting electrical current role during the working electrical net as a hinge , the important role will be brought into effect by the key part in switches - arc contact . if the contacts have invalidated and could not accomplished the important role during the working electrical net , switches would detonate , which result in the paralysis of whole net linked by the switches , the higher the transmitting voltage of net is , the bigger the affected area is , therefore , in order to decrease or avoid the arc eroding and invalidation during the net working , it is necessary to study the arc eroding and invalidation mechanism of contacts , sequentially make the whole net stable 可以说是电网中枢纽，而实施断路器重要作用的核心部件就是弧触头，如果在动态使用中由于触头的失效而不能有效开断的话，断路器就会整机爆炸，后果就是它所连接的整个电网处于瘫痪状态，电网的输变电电压越高，波及的面积越大，所以有必要对触头的动态烧损和失效进行详尽的分析，减少或避免实际使用过程中的烧损和失效，从而稳定整个电网。
