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    • 81. 发明授权
    • Lining of underground pipes
    • 衬里地下管道
    • US06723266B1
    • 2004-04-20
    • US10295852
    • 2002-11-18
    • Raymond Lippiatt
    • Raymond Lippiatt
    • B29C5308
    • B29C47/065B29C47/0023B29C47/0052B29C53/086B29C63/343F16L55/1656G02B6/508
    • A method and apparatus for making a pipe liner and the pipe liner itself. A thin walled pipe liner, after being provided cooled from a spool or extruded in tubular form and cooled, is deformed to a smaller cross section at ambient temperature. The pipe liner is then encased and held in its reduced cross section deformed shape by a protective sleeve which is co-extruded directly over the pipe liner. The sleeved pipe liner may then be wound on a drum for transport to a remote location. Ducts for water may pass through the pipe liner. Other ducts, for example, for fiber optics, may pass through the sleeve either within or outside of the deformed pipe liner.
    • 一种用于制造管衬和管衬本身的方法和装置。 薄壁管衬套被提供从卷轴冷却或以管状形式挤出并冷却后,在环境温度下变形成较小的横截面。 然后通过直接在管内衬上共同挤压的保护套管将管衬套包住并保持在其减小的横截面变形形状。 然后将套筒管衬套卷绕在鼓上以便运输到远程位置。 水管可能通过管内衬。 例如,用于光纤的其它导管可以在变形的管衬内部或外部通过套管。
    • 86. 发明申请
    • Multiple coat metal pipe and its fabrication method
    • 多层金属管及其制造方法
    • US20010028933A1
    • 2001-10-11
    • US09860472
    • 2001-05-21
    • USUI KOKUSAI SANGYO KAISHA LTD.
    • Masayoshi Usui
    • B32B001/08
    • B29C47/065B29C47/0019B29C47/0023B29C47/0052B29C47/021C23C28/00C23C28/321C23C28/3225C23C28/345Y10T428/1355Y10T428/1359Y10T428/139Y10T428/1393Y10T428/31681Y10T428/31692
    • To provide a multiple coat metal pipe and its fabrication method having excellent corrosion resistance without deteriorating chipping resistance or splashing resistance, capable of being fabricated easily and capable of simply carrying out peel off operation owing to a weak peel off strength wherein corrosion resistance of an end working portion is not deteriorated, there is provided a multiple coat metal pipe which is a metal pipe constituted by multiplexing and coating a first layer including a resin having an adhesive force in respect of a surface treatment layer formed on an outer peripheral face of the metal pipe and capable of being extruded and a second layer provided on an outer peripheral face of the first layer, having a chipping resistance and capable of being extruded, wherein a peel off strength between the first layer and the second layer is 75 g/cm or less and further, there is provided a method of fabricating a multiple coat metal pipe, wherein a first layer including a resin having an adhesive force is extruded on a surface treatment layer provided on an outer peripheral face of a metal pipe and a second layer comprising a resin having a chipping resistance is extruded on an outer peripheral face of the first layer and the both resin layers are brought into contact with each other and are multiplexed with each other substantially in a non-adhesive state.
    • 为了提供一种多层金属管及其制造方法,具有优异的耐腐蚀性,而不会劣化耐崩裂性或耐溅射性,能够容易地制造并且能够简单地进行剥离操作,因为剥离强度弱,其端部的耐腐蚀性 工作部分不劣化,提供了一种多层金属管,该多层金属管是一种金属管,该金属管是通过复合和涂覆第一层而构成的,所述第一层包括具有对形成在金属的外周面上的表面处理层的粘合力的树脂 管,能够被挤出,第二层设置在第一层的外周面上,具有耐崩裂性并能够挤出,其中第一层和第二层之间的剥离强度为75g / cm,或者 更少,更进一步地,提供了一种制造多层金属管的方法,其中第一层包括 具有粘合力的树脂被挤压在设置在金属管的外周面上的表面处理层上,并且包括具有抗崩溃性的树脂的第二层被挤出在第一层的外周面上,并且两个树脂层是 彼此接触并且彼此基本上以非粘合状态彼此复用。