• 超高壓大功率清洗機
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    超高壓大功率清洗機
    新聞出處:www.bqhi.tw | 發布時間:2013-9-12 19:12:15
    超高壓大功率清洗機的安全性非常重要,尤其是泵缸體,它是一個超高壓容器,對于管路任何裂縫和螺紋脫節都會導致危險,而對于超高壓大功率清洗機,氣動安全閥或爆破膜安全閥將是最后一道防線。因此,各大型零部件的選材、無損檢測、結構設計、加工與熱處理直到組裝試驗,每一步都要很嚴格。
     
    另外,對承壓缸體的自增強處理工藝很關鍵,我們一般是以兩倍工作壓力使其內壁產生壓縮預應力,產生徑向擴大的殘余變形。這樣,在工作承壓后,應力分布比較均勻,全部應力維持在彈性范圍內,彈性承載能力增大,提高缸體疲勞壽命,設計原則是選擇材料和工藝給出最佳自增強壓力和最佳自增強度。(圖/文www.bqhi.tw)
    英文版:
    Safety of ultra high voltage power cleaning machine is very important, especially the pump cylinder, it is a super high pressure vessel, pipe for any cracks and thread disconnection will cause danger, but for ultra high voltage power cleaning machine, pneumatic safety valve or safety valve blasting film will be the last line of defense. Therefore, the large parts of the material, nondestructive detection, structure design, machining and heat treatment until the assembly test, every step is very strict.
    In addition, self enhancement treatment process is the key to the bearing block, we are generally based on two times the working pressure to the inner wall of the compression stress, residual radial expansion deformation. So, in the working pressure, the stress distribution is more uniform, all the stresses in elastic range, increase the elastic bearing capacity, improve the cylinder fatigue life, the principle of design is the selection of materials and process gives the optimum autofrettage pressure and best self increasing strength.
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