Study on influence of heat-exchanger channel flange seal performance subjected to high temperature difference;
管程介质温差对管箱法兰密封性能的影响
Analysis of temperature differences between top and bottom glass plate of annealing kiln;
退火窑玻璃板上下温差分析
Investigation on surface cracking damage of concrete under big temperature difference;
大温差环境条件下混凝土表面裂缝损伤
Regard structure transition level mass concrete in the skyscraper as the example,this text respect analysthe mechanism of the mass concrete crack from concrete internal and external difference in temperature calculation,concrete thermo-stress calculation etc.
以高层建筑转换层大体积混凝土为例,从施工时混凝土内外温差计算、混凝土温度应力计算等方面,分析了大体积混凝土施工裂缝产生的机理,从而有针对性地采取掺入外加剂,采取保温、保湿及设置加强带补偿收缩等措施,加强混凝土温度监测,有效地防止了转换层厚板大体积混凝土裂缝的产生。
Thinking effect of high temperature, this paper discusses tolerate stress, danger area, difference in temperature stress , and validates that the effect of fins in strength is to reduce stress of difference in temerature.
考虑到高温的影响 ,对材料的许用应力、危险区、温差应力等进行了讨论 ,也验证了翅片管内翅片在强度方面的作
Ltd controlled reservoir wall cracks of enhanced pumping station,the article discusses the problems of wall cracks of enhanced pumping station reservoir,and suggests some technical measures to control reservoir wall cracks effectively,such as to reduce to general temperature differences of common con- crete and to enhance the extreme stretch.
文章以湖南某铝业有限公司加压泵站贮水池池壁裂缝控制为例,具体探讨加压泵站贮水池池壁裂缝问题,提出以降低普通砼总温差和提高砼极限拉伸值等技术措施对池壁裂缝进行有效控制。
The interfacial transition zone(ITZ) of concrete cured in standard condition and in the dry and wide temperature change environment was studied comparatively.
采用显微硬度仪和扫描电镜,对比研究了干燥大温差气候条件和标准养护条件下混凝土界面过渡区的结构和形态。