会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明专利
    • Method of expanding tube
    • 膨胀管的方法
    • JP2013202687A
    • 2013-10-07
    • JP2012077915
    • 2012-03-29
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • ISHIGAMI YOICHIKANAFUSE TAKASHIKAGAWA TAKASHIKADOWAKI HIROKAZU
    • B21D39/08B21D39/10B21D53/06F28F9/16G21D1/00
    • B23P15/26B21D26/033F22B1/025F22B37/007F22B37/104F28D7/06F28F2265/26G21D1/006Y02E30/40Y10T29/49391
    • PROBLEM TO BE SOLVED: To provide a method of expanding a tube, by which the situation that recessed parts are generated on the inner peripheral surface of a heat transmitting tube is prevented when flaws are generated along the peripheral direction to the inner peripheral surface in the midst of a tube hole in the axial direction.SOLUTION: In a method of expanding a tube by which a heat transmitting tube 105 inserted into a tube hole 104a of a tube plate 104 is fixed by expanding the tube, when the flaws 104b are generated along the peripheral direction to the inner peripheral surface in the midst of the tube hole 104a in the direction of the axis S1, the method includes: a first hydraulic tube expanding step where in a range including flaws 104b, the tube is expanded by hydraulic pressure by pressure of 15-70%; and then a second hydraulic tube expanding step where in each divided ranges excepting the flaws 104b, the tube is each expanded by hydraulic pressure by the pressure of 100%.
    • 要解决的问题:提供一种膨胀管的方法,通过该管的方法,在沿着沿着周向的内周面上产生瑕疵的同时防止在传热管的内周面产生凹部的情况 在轴向的管孔的中间。解决方案:在膨胀管的方法中,通过使管扩张而将插入管板104的管孔104a的传热管105固定在其上,当产生缺陷104b时 沿着圆周方向在管孔104a的中心轴线S1的中心的内周面,该方法包括:第一液压管膨胀步骤,其在包括缺陷104b的范围内,通过液压膨胀管 压力15-70%; 然后第二液压管膨胀步骤,除了缺陷104b之外,在每个分开的范围内,通过液压以100%的压力使管膨胀。