• 高壓清洗機柱塞泵O形密封圈
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    高壓清洗機柱塞泵O形密封圈
    新聞出處: | 發布時間:2013-9-12 19:06:49

    O形圈是保證高壓清洗機柱塞泵密封性的重要部件,O形密封圈是一種截面為圓形的橡膠圈,因其截面為O形,故稱其為O形密封圈,是液壓與氣壓傳動系統中使用最廣泛的一種。由于O形密封圈用的合成橡膠材料是屬于粘彈性材料,所以初期設定的壓緊量和回彈堵塞能力經長時間的使用,會產生永久變形而逐漸喪失,最終發生泄漏。因此,O形密封圈需定期進行更換,以免損壞高壓清洗機柱塞泵。O形圈是純膠結構,因此要根據工作條件,特別是工作壓力來選擇O形圈的材料和硬度,對于中低壓場合,當膠料硬度為90時,可耐壓力為150kg/cm2,當膠料硬度提高到95度時,不加擋圈耐壓可達700kg/cm2,所以O形圈膠料的硬度對密封件耐壓性能有極重要的影響。(圖/文www.bqhi.tw)

    英文版:

    O ring is an important component for ensuring sealing plunger pump of high-pressure cleaner, O sealing ring is a circular section rubber ring, because of its cross section is O, so the O ring, hydraulic and pneumatic transmission system is one of the most widely used. The synthetic rubber O ring is a viscoelastic material, so the initial set of compression and rebound clogging ability after using for a long time, will produce permanent deformation and gradually lost, eventually leak. Therefore, the O shape sealing ring should be changed regularly, so as not to damage the plunger pump of high-pressure cleaner. O ring is gum structure, so according to the working conditions, especially the work pressure to choose the O ring material and hardness, for low voltage, when the rubber hardness is 90, high pressure 150kg/cm 2, when the rubber material hardness of 95 degrees, without pressure up to 700kg /cm. 2, so the O ring rubber hardness has an important influence on the seal resistance.

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