Research on Low Temperature Properties and Toughness of Epoxy Resins Modified with Flexible Side Chain 柔性侧链改性环氧树脂的低温增韧研究
The test results show that the basic reasons of the corrosion of the piping at low temperature zone heated side of industrial boiler are the formation of SO 3 in the smoke and the coagulation of the sulphuric acid vapour on the metals in operation. 研究表明,烟气中SO3的形成和硫酸蒸汽的凝结是工业锅炉运行时低温段受热面管道腐蚀发生的根本原因。
The low temperature zone in the flow field as well as the locations of the maximum pressure coefficient and the maximum local Nusselt number on the impingement surface all move to the left side of the flow field as the angle decreases. 流场中的低温区以及冲击表面压力系数最大值和局部Nu最大值的位置也都随着倾角的减小而向流场的左侧偏移。
It is dual channel radiator that results in higher overall air temperature increase and higher logarithm temperature difference at low temperature side. 认为双流道冷却装置使总的空气温升增大、低温侧对数温差提高。
After cold deformation, T T S curve and IGC generation area of 304 stainless steel move toward low temperature and long time sensitization side. 304不锈钢经冷变形后TTS曲线的IGC发生区向低温和长时间敏化侧移动。
The liquid chlorine liquidation apparatus is a condensation equipment. The tube side medium is low temperature salt water ( t ≤-26 ℃). The shell side medium is chlorine gas. 液氯液化器是一台冷凝设备,管程介质为低温盐水(t≤-26℃),壳程介质为氯气,属于三类压力容器。
Corrosion and Protection of the Piping at Low Temperature Zone Heated Side of Industrial Boiler 锅炉低温受热面管的腐蚀及防护
As the atmospheric pressure Dielectric Barrier Discharge ( DBD) plasma with short sterilization time, low operation temperature and side effects, thus it has an extensive application prospects. 由于大气压介质阻挡放电[dielectricbarrierdischarge(DBD)]产生的等离子体具有灭菌时间短、操作温度低、副作用小等优点,因此有着广泛的应用前景。
This paper studied the using of dehydrating agent Dicyclohexylcarbodiimide ( DCC) to catalyze esterification between propionic acid and phenol alcohol compounds at low temperature. Compared with the traditional esterification by the sulfuric acid as dehydrating agent, this method had less side reaction and obtained high yields. 本文研究了利用脱水剂1,3-二环己基碳化二亚胺(DCC)低温脱水催化丙炔酸与酚醇的酯化反应,与传统浓硫酸催化酯化相比,该方法副反应少、产率高。
Low temperature impedes the interfacial side reactions, capacity loss and growth of impedance of a cell. 低温阻碍电极界面副反应发生,减少了容量衰减和阻抗增加。