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公开(公告)号：US06328829B1
公开(公告)日：2001-12-11
申请号：US09411204
申请日：1999-10-04
申请人： Junichi Kato , Yoshiki Seto , Tetsukazu Fukuhara , Yugo Yao
发明人： Junichi Kato , Yoshiki Seto , Tetsukazu Fukuhara , Yugo Yao
IPC分类号： C21D1673
CPC分类号： C21D1/673 , C21D9/0068
摘要： Hardening is accomplished by heating a longitudinal section of a workpiece such as an odd-shaped bar, and by quenching while constraining the workpiece section in dies. The quenching is executed while the workpiece is pressed in a direction perpendicular to its longitudinal direction by a pressing device which is installed adjacent to the workpiece section constrained in the dies. Warping by quenching can thus be minimized in odd-shaped workpieces, such as an automobile steering rack bar.
摘要翻译： 通过加热诸如异型棒的工件的纵向部分，并且通过在模具中约束工件部分的同时进行淬火来实现硬化。 通过与被限制在模具中的工件相邻设置的加压装置沿垂直于其纵向的方向按压工件来执行淬火。 因此，在诸如汽车转向架杆的异型工件中可以使淬火变形最小化。
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公开(公告)号：US5626693A
公开(公告)日：1997-05-06
申请号：US504755
申请日：1995-07-19
申请人： Yugo Yao , Tetsukazu Fukuhara , Yoshiki Seto , Junichi Kato
发明人： Yugo Yao , Tetsukazu Fukuhara , Yoshiki Seto , Junichi Kato
摘要： This invention provides a method and apparatus for quenching a tubular workpiece such as cylindrical tubes or different-shaped tubes, which are difficult to be exerted constraining force for preventing warping especially in case of thinner thickness. Warping is prevented by applying a constraining force which is increased from beginning of the quenching to termination thereof, corresponding to increase of elasticity limit stress in accordance with temperature drop of the workpiece. Furthermore, apparatus for carrying out the method for quenching a tubular workpiece are offered, wherein the apparatus are provided with a pressure controller for pressure rolls or dies, thereby the pressure controller changes setting input for the pressure during the quenching.
摘要翻译： 本发明提供了一种用于淬火管状工件的方法和装置，例如圆柱形管或不同形状的管，其难以施加约束力以防止翘曲，特别是在厚度较薄的情况下。 通过施加从淬火开始到终止的约束力，根据工件的温度下降对应于弹性极限应力的增加来防止翘曲。 此外，提供了用于实施用于淬火管状工件的方法的装置，其中该装置设置有用于压力辊或模具的压力控制器，由此压力控制器改变淬火期间的压力的设定输入。
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公开(公告)号：US5492308A
公开(公告)日：1996-02-20
申请号：US295727
申请日：1994-08-26
申请人： Yugo Yao , Yoshiki Seto , Junichi Kato
发明人： Yugo Yao , Yoshiki Seto , Junichi Kato
摘要： A constrained quenching apparatus is provided for hardening a workpiece such as an asymmetrical bar which has a notable tendency to warping when quenched, without warping the workpiece. The apparatus comprises a set of two or more dies having plural projections provided on the inner side thereof, the projections coinciding with the contour of the workpiece when the dies are closed so that their die faces in contact with one another, and having plural recesses therein defined by the projections. The recesses are provided with one or more cooling liquid blow holes. The apparatus does not exert pressure on the workpiece at the start of the quenching when the workpiece is soft, so the flattening of the hollow workpiece such as a pipe, can be prevented.
摘要翻译： 提供一种约束淬火装置，用于硬化诸如不对称杆的工件，其在淬火时具有显着的翘曲倾向，而不会使工件翘曲。 该设备包括一组两个或更多个模具，其具有设置在其内侧上的多个突起，当模具闭合时突起与工件的轮廓重合，使得它们的模具面彼此接触并且在其中具有多个凹部 由投影定义。 凹部设置有一个或多个冷却液体吹出孔。 该装置在工件柔软时在淬火开始时不对工件施加压力，因此可以防止中空工件（例如管）的扁平化。
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公开(公告)号：US4776195A
公开(公告)日：1988-10-11
申请号：US877966
申请日：1986-06-24
CPC分类号： B21B13/103 , B29C53/14 , B29C67/00 , B29D11/00663 , G02B6/4489 , B21B1/163 , B21B15/02 , B21B2015/0057 , B21B2015/0071 , Y10T29/5187
摘要： An apparatus for manufacturing a core wire for use in laying optical fibers over a long distance produces a plurality of continuous corrugated deep grooves in a wire that are capable of holding therein the optical fibers longitudinally along the peripheral surface of the wire. An endless raw wire material of circular cross section is formed by the apparatus into a wire of square cross section through plastic processing and thereafter the wire is formed into a core wire of a flower patterned cross section with a plurality of petals having corrugated deep grooves in the periphery thereof continuously longitudinally thereof through a rolling device. In addition, the core wire so constructed is formed into a core wire with spiral corrugated deep grooves formed in the peripheral surface thereof. The rolling means has forming rolls equal in number to the number of ridges of the square wire, and each such roll having two perfect corrugated convex portions formed widthwise on the peripheral surface thereof. All the peripheral surfaces of the forming rolls are directed to a point on the wire travelling path, whereby each ridge of the wire is positioned between the two convex portions of each roll. The torsion processing device advantageously has a freely rotatable rim arranged for taking the core wire travelling path as a tangential line, and the rim is rotatable on the contact point between the core wire travelling path and the rim itself perpendicularly to the surface thereof to permit the core wire to be turned around the peripheral surface thereof.
摘要翻译： 用于制造长距离铺设光纤的芯线的设备在导线中产生能够沿着导线的周边纵向保持光纤的多个连续波纹深槽。 通过塑料加工将圆形横截面的无端原料材料形成为方形横截面的线材，然后将线材形成为具有花纹图案横截面的芯线，其中多个花瓣具有波纹深槽 其周边通过滚动装置连续地纵向延伸。 另外，如此构造的芯线形成为在其周面形成有螺旋状的波纹状深槽的芯线。 轧制装置具有与方丝的脊数相等的成形辊，并且每个这样的辊具有在其周向表面上横向形成的两个完美的波纹状凸起部。 成形辊的所有圆周表面被引导到钢丝行进路径上的一个点上，由此每根钢丝的每个凸脊位于每个辊的两个凸部之间。 扭转处理装置有利地具有可自由旋转的轮辋，其被布置为将芯线行进路径作为切线，并且轮辋可以在芯线行进路径和轮辋本身垂直于其表面的接触点上旋转，以允许 芯线绕其外周表面转动。
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5.发明授权Method and apparatus for forming reinforcing cage for prestressed concrete pile 失效预应力混凝土桩加固笼形成方法及装置
公开(公告)号：US4538042A
公开(公告)日：1985-08-27
申请号：US381761
申请日：1982-05-25
申请人： Masaho Tanaka , Tomio Shishido , Tetsukazu Fukuhara , Yugo Yao , Kunihilo Kobayashi , Yoshio Inoue
发明人： Masaho Tanaka , Tomio Shishido , Tetsukazu Fukuhara , Yugo Yao , Kunihilo Kobayashi , Yoshio Inoue
CPC分类号： B21F27/124 , B23K11/008 , E02D5/58
摘要： Apparatus and method for forming a reinforcing cage for a prestressed concrete pile, in which the cage includes a set of main steel bars arranged in a circular pattern and an auxiliary wire which is helically wound around and welded at its crossings with the steel bars, that prevents any crossings from being welded when the current for welding is either insufficient in magnitude or not present and that prevents any unwelded crossings from being subsequently tempered.
摘要翻译： 用于形成用于预应力混凝土桩的加强笼的装置和方法，其中保持架包括一组以圆形图案布置的主钢筋和在其与钢筋的交叉处螺旋缠绕并焊接的辅助线， 当焊接电流的大小不足或不存在时，防止任何交叉焊接，并防止任何未焊接的交叉点随后回火。
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6.发明授权
公开(公告)号：US4822969A
公开(公告)日：1989-04-18
申请号：US184614
申请日：1988-04-21
申请人： Yugo Yao
发明人： Yugo Yao
CPC分类号： H05B3/0009 , H05B3/0023
摘要： The present invention relates to an apparatus for continuous-direct-resistance heating of long-length articles wherein the travelling long-length article is made to contact with roll electrodes disposed in a specified spacing, then made to pass through an annular transformer disposed between the roll electrodes.Conductive members with sufficiently less electrical resistance than that of the long-length article located between the both electrodes are disposed on the periphery of the transformer with the both ends thereof connected to the roll electrode through a slider, thereby a current being induced in the long-length article with the conductive member as the retrace, which heats the long-length article having a higher resistance very efficiently, neither resulting in an external voltage, nor causing electrically any obstacle to the production line in which the apparatus is installed.The apparatus comprises three roll electrodes, two transformers and conductive members being disposed on the periphery of the transformer connected to the neighboring roll electrode, the power being fed to each transformer from two single-phase transformers in the Scott connection with a three-phase power supply, thus providing heating without developing imbalance in the three-phase voltage.
摘要翻译： 本发明涉及一种长型物品的连续直接电阻加热装置，其特征在于，使行进的长型物品与以规定间隔配置的辊电极接触，然后通过设置在 辊电极。 具有比位于两个电极之间的长度物品的电阻更小的电阻的导电构件设置在变压器的周边上，其两端通过滑块连接到辊电极，从而在长时间内引起电流 具有导电构件作为回扫的长度物品，其非常有效地加热具有更高电阻的长度物品，既不会导致外部电压，也不会对安装设备的生产线造成任何障碍。 该装置包括三个辊电极，两个变压器和导电构件设置在连接到相邻辊电极的变压器的周边上，该功率从具有三相功率的斯科特连接中的两个单相变压器馈送到每个变压器 供应，从而提供加热，而不会在三相电压中发展不平衡。
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7.发明授权
公开(公告)号：US4987281A
公开(公告)日：1991-01-22
申请号：US312056
申请日：1989-02-17
申请人： Yugo Yao
发明人： Yugo Yao
CPC分类号： C21D9/62 , C21D9/60 , H05B3/0009 , Y02P10/253
摘要： The present invention relates to an apparatus for continuous-direct-resistance heating of long-length articles wherein the travelling long-length article is made to contact with roll electrodes disposed in a specified spacing, then made to pass through an annular transformer disposed between the roll electrodes.Conductive members with sufficiently less electrical resistance than that of the long-length article located between the both electrodes are disposed on the periphery of the transformer with the both ends thereof connected to the roll electrode through a slider, thereby a current being induced in the long-length article with the conductive member as the retrace, which heats the long-length article having a higher resistance very efficiently, but does not result in an external voltage nor any electrical hazards along the production line in which the apparatus is installed.One embodiment of the apparatus comprises three roll electrodes, two transformers and conductive members being disposed on the periphery of the transformer connected to the neighboring roll electrode, the power being fed to each transformer from two single-phase transformer in a Scott connection with a three-phase power supply, thus providing heating without developing imbalance in the three-phase voltage.
摘要翻译： 本发明涉及一种长型物品的连续直接电阻加热装置，其特征在于，使行进的长型物品与以规定间隔配置的辊电极接触，然后通过设置在 辊电极。 具有比位于两个电极之间的长度物品的电阻更小的电阻的导电构件设置在变压器的周边上，其两端通过滑块连接到辊电极，从而在长时间内引起电流 具有导电构件作为回扫的长度制品，其高效地加热具有较高阻力的长度制品，但不会导致外部电压以及沿着装置安装的生产线的任何电气危险。 该装置的一个实施例包括三个辊电极，两个变压器和导电构件设置在连接到相邻辊电极的变压器的周边上，该功率由两个单相变压器以三连接的方式馈送到每个变压器 相电源，从而提供加热，而不会导致三相电压不平衡。
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