Hunger现有的密封技术的发展已经有数十年。

HUNGER杆密封TDA系列描述及作用

用于外密封的 Hunger TDA 串联式密封件主要用于活塞、柱塞和蓄能器的密封。它适用于矿物油，经改进后也可用于水基液压油、抗燃液压油和压缩空气。TDA 密封件由两部分组成：一个是带有密封唇的聚氨酯（PUR）弹性环，另一个是带有密封刃口的耐磨聚四氟乙烯-青铜（PTFE-Bronze）复合材料滑环。在安装前，密封唇会凸出密封件的公称直径，安装后则紧贴在缸壁上。因此，即使在零压力下也能提供有效的密封。滑环被弹性密封环包裹，并在与缸筒内壁直接接触的情况下进行轴向运动。随着压力的增加和密封环的压缩，主要是滑环被压紧在缸体内壁上。滑环的密封刃口会形成一个环形腔室，用于收集任何越过弹性体密封唇的渗油。

渗油被密封刃口挡住，从而确保伸出的活塞杆保持干燥。在回程（退回行程）中，收集到的油会被重新压回缸内。TDA 的外密封表面主要由外部滑环组成，该滑环具有的滑动性能。当缸筒的表面粗糙度达到 Ra 0.3 - 0.5 µm 时，可以实现最低的摩擦水平、高效的密封以及较长的使用寿命。它没有静摩擦卡滞，不会产生难以接受的热量，最重要的是没有粘滑效应（爬行现象）。

The Hunger TDA tandem seal for outside sealing is used to seal pistons, plungers and accumulators. It can be applied with mineral oils and in modified ｆorm also with water base fluids, fire rsistant fluids, and compressed air. The TDA seal consists of 2 parts, an elastic ring of PUR with a sealing lip and a slide ring of abrasion resistant PTFE-Bronze-compound with a sealing edge. Prior to fitting, the sealing lip protrudes beyond the nominal diameter of the seal and is pressed against the cylinder wall after fitting. Thus effective sealing is provided even at zero pressure. The slide ring is surrounded by the elastomer sealing ring and moves axially in direct contact with the inside of the tube. With increasing pressure and compression of the sealing ring, it is the slide ring which is predominantly pressed against the inside of the cylinder. The slide ring sealing edge produces an annular cavity where any seepage oil that has passed the elastomer lip is collected.

The seepage oil is held back by the sealing edge, such that the emerging piston rod remains dry. During the return stroke, the collected oil is forced back into the cylinder. The outer sealing surface of the TDA mainly comprises the external slide ring which has excellent sliding properties. When combined with a surface finish of Ra 0.3- 0.5 µm on the cylinder tube, minimum friction levels are achieved with highly efficient sealing and long service life. There is no stiction, no unacceptable heat generation, and above all no stick-slip effect.

HUNGER密封圈常用型号：

HUNGER TDA 110/95×12

HUNGER 010124

HUNGER 076492

HUNGER 010125

HUNGER 010126

HUNGER 075191

HUNGER 010127

HUNGER 010128

HUNGER 071408

HUNGER 422533

HUNGER 010130

HUNGER 039416

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如果有任何关于HUNGER密封圈TDA 110/95×12的疑问，请随时致电我们，爱泽工业（021-31006702）。我们将尽解决您的问题。

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HUNGER密封圈TDA系列TDA 110/95×12介绍