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- fin tube wall 鳍片管墙
- A new non-chip cutting-press compound shaping technique of fin tube was presented. 提出了一种新的翅片管无屑切削挤压复合成形方法。
- The shaping process of fin tube and the characteristics of the cutting tools were researched in detail. 对翅片的成形过程和加工刀具的特点进行了研究,建立了翅片尺寸的理论模型;
- The air cooler is designed of nullity fin oval stainless steel bellows tube bank replacing conventional fin tube bank. 空气冷却器采用无翅片椭圆不锈钢波纹管管束替代传统的翅片管管束,是空气冷却器设计制造的技术革新。
- Spirally corrugated and sawtooth-shaped fin tube is a high performance condensation heat transfer tube. 螺旋槽锯齿翅片管是一种新型高效冷凝换热管。
- In this paper, the model for the formation of overlap in extrusion_ploughing for outside fin tube is developed. 建立了挤压犁削加工外翅片管过程中飞边的生成模型,给出了产生飞边的判定准则,并对影响飞边产生的因素进行了研究。
- When tube wall strength can not bear inner steam pressure in the tube, blowout of low-temperature tube occurs. 当管壁强度无法承受管内蒸汽压力时,导致低温过热器管爆裂。
- Established the cooler fin tube production Division in the Utsunomiya Plant for expansion of production. 建立了较凉的翅片管的生产部门,在宇都宫厂为扩大生产。
- Once tube wall is overheated, oxidation corrosion rate is not only accelerated, hut also the tube performance is rapidly deteriorated. 一旦管壁过热不仅加速氧化腐蚀速率,且急剧恶化管材性能。
- The tube wall is composed of graphite layer from efficient graphitizing process. 管壁是由石墨化很好的石墨层构成。
- In this paper, the heat transfer performance of foed convective Condensation and the heat transfer enhancement mechanism on the petal shaped fin tube (PF tube) are studied. 本文研究了花瓣形翅片管(PF管)在水平套管之环形通道内强制对流冷凝的传热性能及传热强化机理。
- This battery-like reaction produces and electrical charge that leads to the striations within the tube wall. 这个像是电池产生电荷反应般,进而导致在管璧内留下条纹状(裂痕)。
- Plastic twisted tape produces slight wear on the tube wall, therefore is preferable than the metal twisted tape. 塑料纽带对管壁的额外磨损微乎其微,可免除金属纽带对管壁的磨损问题。
- Strut of cell of tube wall endodermis, appear hobnail kind dash forward to tubal antrum. 管壁内皮细胞肿胀,似鞋钉样突向管腔。
- Abraded by flying ash and blowing ash, the tube wall of low temperature superheater of HP boiler was thinned during operation. 高压锅炉过热器在运行中受到飞灰、吹灰磨损,导致管壁减薄。
- A new method of machining integral fin tubes (IFT), chopping extrusion technique, was presented. 提出了一种新的整体翅片管的机械加工方法,即劈切挤压加工。
- By discussing the calculations of Max. metal temperature at tube wall of tubular heaters, formula intention are evaluated. 从讨论管式加热炉最高管壁金属温度的计算公式开始,分析评述了公式的内涵;
- The frequent overtemperature of reheater tube wall of Unit 3 boiler in Huangpu Power Plant,Guangdong Yuehua Power Generation Co. 广东粤华发电有限责任公司黄埔发电厂3号锅炉再热器管壁温度经常超温,影响机组带负荷,同时再热器减温水流量较大,严重影响机组效率。
- Its are main defect is to be in use as when hot conduit is used, because long-term heat bilges cold shrink can cause as a result of tube wall amlposition to cause leakage. 其主要缺点是在用作热水管使用时,由于长期的热胀冷缩会造成管壁错位以致造成渗漏。
- The effect of the content of expansive additive and steel tube wall thickness on the mechanical properties of expansive concrete filled square steel tube were studied. 摘要实验研究了膨胀剂掺量和钢管厚度对不同强度等级方钢管膨胀混凝土力学性能的影响。