Corrosion-resistant pipe coupling structures
    1.
    发明授权
    Corrosion-resistant pipe coupling structures 失效
    耐腐蚀管接头结构

    公开(公告)号:US4600219A

    公开(公告)日:1986-07-15

    申请号:US692554

    申请日:1985-01-16

    摘要: A corrosion-resistant pipe coupling made of carbon steel has on its inner surface an intermediate annular projection directed radially inward. At least an innermost part of the annular projection is formed of corrosion-resistant material such as stainless steel. The annular projection may be covered by a corrosion-resistant annular member which is secured by friction welding, electron beam welding, an adhesive or mechanical engagement. The annular member prevents corrosion of the coupling by corrosive fluids flowing in pipes.

    摘要翻译: 由碳钢制成的耐腐蚀管接头在其内表面上具有径向向内指向的中间环形突起。 环形突起的至少最内部由耐腐蚀材料(例如不锈钢)形成。 环形突起可以被耐腐蚀的环形构件覆盖,该环形构件通过摩擦焊接,电子束焊接,粘合剂或机械接合来固定。 环形构件通过在管道中流动的腐蚀性流体防止联接件的腐蚀。

    Corrosion-resistant pipe coupling structures
    2.
    发明授权
    Corrosion-resistant pipe coupling structures 失效
    耐腐蚀管接头结构

    公开(公告)号:US4509776A

    公开(公告)日:1985-04-09

    申请号:US358801

    申请日:1982-03-16

    CPC分类号: F16L58/182

    摘要: A corrosion-resistant pipe coupling made of carbon steel has on its inner surface an intermediate annular projection directed radially inward. At least an innermost part of the annular projection is formed or corrosion-resistant material such as stainless steel. The annular projection is covered by a corrosion-resistant annular member or which is secured by friction welding, electron beam welding, an adhesive or mechanical engagement. The annular member prevents corrosion of the coupling by corrosive fluids flowing in pipes.

    摘要翻译: 由碳钢制成的耐腐蚀管接头在其内表面上具有径向向内指向的中间环形突起。 至少形成环形突起的最内侧部分或耐腐蚀材料如不锈钢。 环形突起由耐腐蚀的环形构件覆盖,或者通过摩擦焊接,电子束焊接,粘合剂或机械接合来固定。 环形构件通过在管道中流动的腐蚀性流体防止联接件的腐蚀。

    Method of producing multiple-wall, composite tubular structures
    3.
    发明授权
    Method of producing multiple-wall, composite tubular structures 失效
    生产多壁复合管状结构的方法

    公开(公告)号:US4449281A

    公开(公告)日:1984-05-22

    申请号:US358800

    申请日:1982-03-16

    摘要: A double-wall composite pipe is produced by inserting an inner pipe in an outer pipe, filling the inner pipe with cold water under pressure to cause the inner pipe to expand plastically into tight contact with the outer pipe, applying heat to the outer part of the outer pipe by high-frequency induction heating, thereby to establish a locally heated zone thereof around the circumference thereof and causing the heated zone to travel from one end to the other end of the outer pipe thereby to cause it to successively expand locally in diameter in the travelling heated zone. The pressure in the inner pipe then is removed, the pipes thereafter being permitted to attain the ambient temperature, thereby to obtain an interference fit therebetween.

    摘要翻译: 通过在外管中插入内管,在压力下用冷水填充内管,使内管膨胀成与外管紧密接触而制成双壁复合管,向外管施加热量 外管通过高频感应加热,从而在其周围建立局部加热区,并使加热区从外管的一端行进到另一端,从而使其直径局部地连续膨胀 在旅行加热区。 然后将内管中的压力除去,此后允许管道达到环境温度,从而在其间获得过盈配合。

    Method of production of anchor-bonded composite structures
    6.
    发明授权
    Method of production of anchor-bonded composite structures 失效
    锚固复合结构的生产方法

    公开(公告)号:US5121537A

    公开(公告)日:1992-06-16

    申请号:US622340

    申请日:1990-11-29

    摘要: A method of producing an anchor bonded composite plate. Anchor cavities are formed in a base plate by placing a forming plate with a circular hole therethrough over the base plate at a selected anchor cavity location. A punch placed through the circular hole then applies a punching force to the base plate, thereby forming in the base plate an annular mound with a concentrically punched hole. The mound is next pressed with a leveling plate to cause the material of the mound to flow inside the punched hole forming an anchor cavity with an overhanging internally tapered surface. A cladding plate with a plurality of anchor holes is then placed on the base plate with its holes aligned with the cavities of the base plate. An anchor pin is inserted in the thus aligned openings and is plastically deformed to mechanically bond the plates together. The cladding plate and the base plate may be made of an aluminum alloy and a hard steel, respectively. The composite plate thus produced is applicable as a reaction plate for a linear motor vehicle and as a tank material for a liquid natural gas holder.

    摘要翻译: 一种锚固复合板的制造方法。 通过在所选择的锚定腔位置处,在基板上放置具有圆形孔的成形板而在基板上形成锚定腔。 穿过圆孔的冲头然后对基板施加冲压力,从而在基板上形成具有同心冲孔的环形堆垛。 接下来用平整板压住土丘,使得土丘的材料在冲孔内流动,形成具有悬垂的内锥形表面的锚定腔。 然后将具有多个锚定孔的包覆板放置在基板上,其孔与基板的空腔对准。 锚定销插入到如此排列的开口中并且塑性变形以将板机械地结合在一起。 包层板和基板可以分别由铝合金和硬质钢制成。 这样生产的复合板可用作线性机动车辆的反作用板和用作液体天然气保持器的罐材料。

    Method of producing a multiple-wall pipe structure with anticorrosion
end protection
    7.
    发明授权
    Method of producing a multiple-wall pipe structure with anticorrosion end protection 失效
    生产具有防腐端保护功能的多壁管结构的方法

    公开(公告)号:US4542846A

    公开(公告)日:1985-09-24

    申请号:US567315

    申请日:1983-12-30

    摘要: A multiple-wall pipe structure having at least two pipes tightly fitted one within another, one of which is of a corrosion-resistant material whereas the other is of a noncorrosion-resistant material. In order to protect against corrosion the end faces of the noncorrosion-resistant pipe and the seams between the two pipes, either during storage in the form of discrete pipe sections or in use by being welded or otherwise jointed end to end, a pair of anticorrosion rings of a corrosion-resistant material are integrally attached to the opposite ends of the fitted pipes so as to cover at least the end faces of the noncorrosion-resistant pipe and to seal the seams therebetween.

    摘要翻译: 一种多壁管结构,其具有至少两个紧密地配合在另一个中的管道,其中一个管道是耐腐蚀材料,而另一个是耐腐蚀材料。 为了防止腐蚀,不腐蚀管道的端面和两个管道之间的接缝,在以离散管段形式的存储期间或通过焊接或以其他方式端接到端部使用时,一对防腐蚀 防腐蚀材料的环一体地附接到装配管的相对端,以至少覆盖耐腐蚀管的端面并密封它们之间的接缝。

    Thermoplastic method of reducing the diameter of a metal tube
    8.
    发明授权
    Thermoplastic method of reducing the diameter of a metal tube 失效
    减少金属管直径的热塑性方法

    公开(公告)号:US4727641A

    公开(公告)日:1988-03-01

    申请号:US871917

    申请日:1986-06-06

    IPC分类号: B23P11/02 C21D9/08

    摘要: For reducing the diameter of any axially limited part of a metal tube, that part is heated externally by an annular heater while at least the adjacent part or parts of the metal tube are being cooled and held at a temperature sufficiently low to limit the free thermal expanison of the heated part. On cooling, the part that has been heated becomes less in diameter than the other portions of the metal tube. The complete length of the metal tube can likewise be reduced in diameter by moving the annular heater and the metal tube relative to each other in the longitudinal direction of the tube from one end to the other while at least the adjacencies of the part being heated are being cooled as by water. The same method is adaptable for the fabrication of wear-resistant dual wall pipe for the transportation of fluids, as is also disclosed herein.

    摘要翻译: 为了减小金属管的任何轴向限制部分的直径,该部分由环形加热器在外部加热,同时至少金属管的相邻部分被冷却并保持在足够低的温度以限制自由热 加热部件的膨胀。 在冷却时,被加热的部分的直径小于金属管的其他部分。 金属管的整个长度同样可以通过使环形加热器和金属管在管的纵向方向上从一端到另一端相对彼此移动而直径减小,而至少加热部分的相邻位置是 被水冷却。 同样的方法适用于制造用于运输流体的耐磨双壁管,如本文也公开的。

    Fabrication of panel structures having thin skin plate in vehicles,
water craft, buildings, and the like
    9.
    发明授权
    Fabrication of panel structures having thin skin plate in vehicles, water craft, buildings, and the like 失效
    在车辆,水上工艺,建筑物等中制造具有薄皮板的面板结构

    公开(公告)号:US4058883A

    公开(公告)日:1977-11-22

    申请号:US651282

    申请日:1976-01-22

    摘要: A panel structure is fabricated by stretching a skin plate with a tensile stress below the elastic limit stress thereof, securing this plate onto a framework with the plate under a constraining tensile stress and with portions thereof to which the constraining stress is not being fully applied being heated thereby to cause thermal expansion thereof, removing the constraining stress, and permitting the plate to cool and thereby to undergo thermal contraction and deformation, thereby producing tensile residual stress within the plate, whereby occurrence of welding deformations in the plate on the finished panel is prevented. Depending on the necessity, the skin plate may be prestretched with a stress exceeding the yield point thereof before the above described panel fabrication.

    摘要翻译: 通过将拉伸应力拉伸到低于其弹性极限应力的拉伸应力下来制造面板结构,将该板固定在具有约束拉伸应力的板的框架上,并且其中约束应力未被完全施加到其上的部分 加热从而引起其热膨胀,消除约束应力,并允许板冷却,从而发生热收缩和变形,由此在板内产生拉伸残余应力,从而在成品板上的板中发生焊接变形 防止了 根据需要,在上述面板制造之前,可以将表皮板预拉伸超过其屈服点的应力。

    Method of producing multiple-wall composite pipes
    10.
    发明授权
    Method of producing multiple-wall composite pipes 失效
    多壁复合管生产方法

    公开(公告)号:US4332073A

    公开(公告)日:1982-06-01

    申请号:US124215

    申请日:1980-02-25

    摘要: An outer pipe is diametrically expanded by heating and an inner pipe is diametrically contracted by cooling with a coolant introduced into the inner pipe to produce between the pipes a clearance just sufficient for insertion of the inner pipe into the outer pipe, and then the coolant is pressurized to expand the inner pipe against and together with the outer pipe, the pressure being removed after the pipes have expanded to a specific diameter of the joint therebetween. The tightness of the fit between the pipes due to the expansion is further increased by the subsequent thermal shrinkage of the outer pipe and thermal expansion of the inner pipe.

    摘要翻译: 外管通过加热而直径膨胀,内管通过冷却引入内管的冷却剂直径地收缩,以在管之间产生刚好足以将内管插入外管的间隙,然后冷却剂 加压以使内管与外管一起并且与外管一起膨胀,在管已经膨胀到其间的接头的特定直径的位置之后,压力被移除。 由于外管的随后的热收缩和内管的热膨胀,由于膨胀而在管之间的配合的紧密性进一步增加。