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机械密封(mechanical seal)
机械密封(mechanical seal)是指由至少一对垂直于旋转轴线的端面在流体压力和补偿机构弹力（或磁力）的作用下以及辅密封的配合下保持贴合并相对滑动而构成的防止流体泄漏的装置。弹力加载机构与辅助密封是金属性纹管的机械密封我们称为金属波纹管密封。在轻型密封还有使用橡胶波纹管作辅助密封的，橡胶波纹管弹力有限，一般需要辅以弹簧来满足加载弹力。机械密封的组成：　&nbs...
http://www.polymer.cn/PY13179/index

Overmolded Seal二次成型密封
Overmolded Seal二次成型密封
http://www.polymer.cn/PY12265/index

屋顶燃烧测试系统（Spread of Flame
FESTEC SCF2009 屋顶燃烧测试系统是在模拟真实条件下来评估屋顶及组件的耐火性能的仪器，在A1.82m、B 2.4m和C 3.9m情况下评定试样的等级A~C级。同时可应用于光伏电池组件阻燃性能测试使用。技术参数： ASTM E 108 屋顶覆盖材料的防火测试； UL790 屋顶覆盖材料的防火测试； NFPA 256 屋顶覆盖层的防火测试； IEC 6173...
http://www.polymer.cn/PY10796/index

火焰蔓延指数（FLAME PERSISTENCY AND PROPAGATION TEST APPA
仪器简介： PolyNorme 504 apparatus for rigid material test , Design and marketing of the flame persistency and propagation test apparatus are subjected to a partnership with LNE (Laboratoire National d’Essais).技术参数： PolyNorme 504 apparatus allows to perform automatically all the operating sequence including recording of the flame persistency duration determined by push-button activation, e...
http://www.polymer.cn/PY10796/index

垂直燃烧测试仪（自动）（Automatic Vertical Flame Te
仪器介绍垂直燃烧测试仪（自动），根据美国CA TB117标准设计而成，通过配备不同的试样夹，可对软体家具布料及填充物进行阻燃性能测试；同时还可以满足国际产业纺织品协会对于CPAI 84帐篷燃烧测试要求，以及美国航空管理局FAA所要求之标准阻燃测试。技术参数符合标准：美国加州法规（CA TB） CA TB 117 Section A & B 国际产业纺织品协会(CPAI)&nb...
http://www.polymer.cn/PY10796/index

成束电线电缆燃烧测试仪（Bunched Cable Vertical Flame Spread Te
仪器介绍 FESTEC VTF2008 成束电线电缆燃烧测试仪是用于检测垂直安装的成束电缆或光缆在规定条件下抑制火焰垂直蔓延的能力的仪器，是电力电缆、控制电缆、光缆等成束燃烧试验的必备装置。符合标准： IEC 60332-3-10 电缆和光缆在火焰条件下的燃烧试验第31部分：垂直安装的成束电线电缆火焰垂直蔓延试验，试验装置 IEC 60332-3-21 :成束电线或电缆垂直火焰分布下燃烧试验A F／R类试验 IEC 60332-3-22 : 成束电线或电缆垂...
http://www.polymer.cn/PY10796/index

热辐射火焰传播测试仪（Radiant panel Flame Spread Te
技术参数 ASTM E 162: Standard Test Method for surface Flammability of materials Using a Radiant Heat Energy Source • ASTM D 3675: Standard Test Method for surface Flammability of Materials using A Radiant Heat Energy Source 主要特点 Reflection panel is composed of a cast iron frame with vertically applied porosity fire resistant material with a 305X457mm size exposed refl...
http://www.polymer.cn/PY10796/index

STUDY ON SEALING MECHANISM AND INJECTION-MOLDING CAE OF Y-TYPE SEAL-RING OF WATER HYDRAULIC SINGLE PROP
关键字：hydraulic single prop; seal-ring; sealing performance; injection molding
According to the real sealing performance of water hydraulic single prop and the sealing mechanism of Y-type seal-ring, the structure of Y-type seal-ring was determined in this paper. The influence of seal lip chamfer on seal...
http://www.polymer.cn/research/dis_info2476

The Study of Sealing Mechanism of Radial Shaft Seal
关键字：Radial shaft seal; Elastohydrodynamic model; Finite element method; Sealing mechanism
In this study, the influence of two important parameters, the width of the waist of seal and the interferences between the shaft and the seal, on static sealing performance of the seal were analysed by the use of&nb...
http://www.polymer.cn/research/ct_info502

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