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    • 94. 发明授权
    • Multi-walled steel pipe, a method of making the same and a metal strip
for use in making the same
    • 多壁钢管,其制造方法和使用该金属条的金属条
    • US5163602A
    • 1992-11-17
    • US650447
    • 1991-02-04
    • Masayoshi Usui
    • Masayoshi Usui
    • F16L9/02B21C37/06B21C37/09B23K1/14C23C26/02F16L9/16
    • C23C26/02B21C37/06B21C37/09B23K1/14F16L9/165
    • A multi-walled steel pipe comprises a metal strip plated with copper and including a brazing layer thereon. At least one surface of the metal strip is roughened and braze welded to the other, overlapping surface when the metal strip is rolled. The roughened surface has a roughness in the range of between 10 and 30.mu.m. A method of making a multi-walled steel pipe comprises roughening at least one surface of a metal strip, the metal strip being previously plated with copper and including a brazing layer thereon, rolling the metal strip a plurality of times by a pipe forming machine to provide a pipe body with the roughened surface directed toward the other overlapping surface, while the metal strip being fed between a plurality of sets of rollers in the pipe forming machine, and heating the pipe body to a melting temperature of the brazing layer in a furnace so as to braze weld the overlapping surfaces of the metal strip together.
    • 多壁钢管包括镀有铜并在其上包括钎焊层的金属带。 当金属带被轧制时,金属带的至少一个表面被粗糙化并且钎焊焊接到另一个重叠表面。 粗糙表面的粗糙度在10至30μm的范围内。 制造多壁钢管的方法包括使金属带的至少一个表面粗糙化,金属带预先镀有铜并在其上包括钎焊层,通过管道成型机将金属带多次轧制 提供具有朝向另一重叠表面的粗糙表面的管体,同时将金属带供给到成形机中的多组辊之间,并将管体加热到熔炉中的熔融温度 以将金属条的重叠表面钎焊在一起。
    • 97. 发明授权
    • Small-diameter pipe clamping structure
    • 小直径管夹结构
    • US5028021A
    • 1991-07-02
    • US510134
    • 1990-04-17
    • Kenji SugiyamaMasayoshi Usui
    • Kenji SugiyamaMasayoshi Usui
    • F16L3/12F16L3/123
    • F16L3/1233Y10T24/1457
    • The present invention provides a small-diameter pipe clamping structure comprising a bandlike clamp of specific form.According to one embodiment of the invention, the clamp is provided on the upper surface thereof with a longitudinally extending raised wall (or walls) at the center and fitting holes at both ends thereof, respectively, such that when the clamp is fitted about the pipe in a looplike fashion and pressed from outside against the outer periphery of the pipe by using a press, the raised wall is brought into tight engagement with the outer periphery of the pipe to thereby secure the clamp to the pipe.The invention is advantageous in that the clamp does not become displaced, separated from the pipe or missing and the pipe is prevented from being bruised even when it is subjected to vibrations during use.
    • 本发明提供一种小直径管夹持结构,其包括特定形式的带状夹具。 根据本发明的一个实施例,夹具在其上表面上分别在其中心处设置有纵向延伸的升高的壁(或壁),并且在其两端分别设有安装孔,使得当夹具围绕管 通过使用压力机从外部抵靠管的外周压制,使凸起壁与管的外周紧密接合,从而将夹具固定在管上。 本发明的优点在于,夹具不会发生位移,与管道分离或丢失,并且即使在使用过程中受到振动也可以防止管道被擦伤。
    • 98. 发明授权
    • Small-size piping coupling joint
    • 小型管接头
    • US4964658A
    • 1990-10-23
    • US387491
    • 1989-07-28
    • Masayoshi UsuiKatsushi WashizuKazunori Takikawa
    • Masayoshi UsuiKatsushi WashizuKazunori Takikawa
    • F16L37/098
    • F16L37/0982F16L2201/10Y10S285/921
    • A small-size piping coupling joint, comprising a retainer member with a piping insertion hole perforated in a shaft center portion of a bottom wall and a plurality of locking claw walls projecting uniformly as tapered toward a rear side provided on a peripheral side wall portion, and a socket member provided with a flow hole in the shaft center portion ranging to a stepped expanded portion inside of an end portion on a coupling side, and having an engaging groove on an outer circumferential wall portion. With an outward swelling wall having a seal ring on the back positioned within the stepped expanded portion, the retainer member and the socket member are locked overlapping each other to connection, thus the locking claw walls are locked resiliently in the engaging groove on the socket member side to coupling of the piping.
    • 一种小型管道联接接头,包括:保持构件,其具有在底壁的轴心部分中穿孔的管道插入孔;以及多个锁定爪壁,其均匀地突出设置在周边侧壁部分上的后侧; 以及插座构件,其在所述轴心部分中设置有流动孔,所述流动孔在联接侧的端部的内侧具有阶梯状扩展部,并且在外周壁部上具有接合槽。 在位于台阶扩展部分内的背面具有密封圈的向外膨胀壁上,保持构件和插座构件彼此重叠地锁定连接,因此锁定爪壁弹性地锁定在插座构件上的接合槽中 侧面连接管道。