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131.发明授权
公开(公告)号：US5529747A
公开(公告)日：1996-06-25
申请号：US351510
申请日：1994-12-07
申请人： Thomas J. Learman
发明人： Thomas J. Learman
摘要： A formable composite magnetic flux concentrator material is composed of about 65% to 90% ferromagnetic material, such as iron powder, and about 35% to 10% binder, the binder being a mixture of an epoxy and one or more catalysts. The concentrator material is provided in a formable state as a putty-like body which can be worked into any desired shape dictated by the configuration of the induction heating coil used in a particular application. In one form, the density of the concentrator material is increased by application of vibration, compression and vacuum to de-air the material and to reduce voids therein. In another form, the iron powder comprises spherical-shaped particles and non-spherical shaped powders chosen in a ratio to maximize the density of material available.
摘要翻译： 可成形的复合磁集中器材料由约65％至90％的铁磁材料（例如铁粉）和约35％至10％的粘合剂组成，粘合剂是环氧树脂和一种或多种催化剂的混合物。 集中器材料以可形状的状态设置为油灰状体，其可以被加工成由特定应用中使用的感应加热线圈的构造所规定的任何期望的形状。 在一种形式中，通过施加振动，压缩和真空来增加浓缩器材料的密度以使材料脱气并减少其中的空隙。 在另一种形式中，铁粉包括球形颗粒和非球形粉末，其比例以使可用材料的密度最大化。
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公开(公告)号：US5486684A
公开(公告)日：1996-01-23
申请号：US367546
申请日：1995-01-03
IPC分类号： B23K13/01 , B29C65/00 , B29C65/36 , B29K79/00 , B29K105/08 , B29L31/30 , H05B6/02 , H05B6/10
CPC分类号： B29C66/721 , B29C65/3644 , B29C66/0342 , B29C66/1122 , B29C66/301 , B29C66/524 , B29C66/5326 , B29C66/73921 , B29C66/80 , B29C66/81241 , B29C66/836 , B29C66/91641 , B29C66/91645 , B29C66/91651 , B29C66/91655 , B29C65/3668 , B29C66/71 , B29C66/7212 , B29C66/7394 , B29C66/91221 , B29C66/91411 , B29C66/961 , B29L2007/002 , B29L2024/00 , B29L2031/3076
摘要： An induction coil is passed over an interface between two resinous parts to be welded and an alternating magnetic field generated by the coil induces eddy currents in a foraminous susceptor positioned in the interface between the two parts. Pressure is applied to squeeze the two parts together while the induction heating of the susceptor raises the temperature of the resin in the faying surfaces of the two parts to the softening temperature so that resin flows through the interstices in the susceptor and bonds the two parts together. The induction heating and pressure application passes are repeated four or more times, increasing the power to the induction coil in the later passes to increase the heat input. The strength and continuity of the weld improves with each pass, although the incremental improvement diminishes after about four passes.
摘要翻译： 感应线圈通过待焊接的两个树脂部件之间的界面，并且由线圈产生的交变磁场在位于两部分之间的界面中的有孔基座中引起涡流。 施加压力以将两部分挤压在一起，同时感受器的感应加热将两部分的接合表面中的树脂的温度升高到软化温度，使得树脂流过基座中的间隙并将两部分结合在一起 。 感应加热和压力施加通过重复四次或更多次，增加后续通过中的感应线圈的功率以增加热量输入。 焊接的强度和连续性随着每次通过而提高，尽管增量改进在大约四次通过后减小。
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公开(公告)号：US5483042A
公开(公告)日：1996-01-09
申请号：US984174
申请日：1992-11-20
申请人： Robert A. Sprenger , Ray C. Raffa
发明人： Robert A. Sprenger , Ray C. Raffa
CPC分类号： H05B6/103 , B03C1/253 , H01F7/0247 , H05B6/36 , H05B6/44
摘要： Apparatus for spacing a plurality of substantially plate-like ferromagnetic workpieces such as can lids, in face-to-face relationship along a row, comprises a plurality of magnetic elements, each extending longitudinally along the row and different ones of the elements being disposed at different angular positions around the row, each of the magnetic elements being disposed and oriented to prevent the workpieces from pivoting about a distal edge of the workpiece due to the combined magnetic attraction of the workpiece by all others of the magnetic elements.
摘要翻译： 用于沿着一排以面对面的关系间隔多个基本上板状的铁磁性工件（例如罐盖）的装置包括多个磁性元件，每个磁性元件沿着该行纵向地延伸并且不同的元件被设置在 围绕该行的不同角度位置，每个磁性元件被设置和定向以防止工件围绕工件的远端边缘枢转，这是由于工件被所有其它磁性元件组合的磁吸引。
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公开(公告)号：US5451275A
公开(公告)日：1995-09-19
申请号：US285883
申请日：1994-08-04
申请人： Maurice F. Amateau , Nagesh Sonti
发明人： Maurice F. Amateau , Nagesh Sonti
IPC分类号： H05B6/10 , B21H5/02 , B21H9/00 , C21D1/10 , C21D8/00 , C21D9/32 , H05B6/02 , H05B6/14 , H05B6/40
CPC分类号： H05B6/405 , B21H5/022 , C21D8/00 , C21D9/32 , B21H9/00 , C21D1/10 , Y02P10/253 , Y10T29/49471
摘要： An apparatus and method are provided for the thermomechanical net shape finishing of precision gear tooth surfaces by controlled deformation into metastable austenitic condition. To this end, an arrangement of a fixed axis through-feed motion of workpiece and moving axes in-feed motion of two opposed rolling dies are utilized. By means of process control methods and architecture for accomplishing precision mechanical motions, thermal and environmental control and timely and automatic transfer of workpiece, high strength and high accuracy gear tooth contact surfaces are produced.
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公开(公告)号：US5427846A
公开(公告)日：1995-06-27
申请号：US214666
申请日：1994-03-18
申请人： Thomas H. McGaffigan
发明人： Thomas H. McGaffigan
IPC分类号： B29C61/06 , B29C65/00 , B29C65/36 , H01R4/72 , H01R43/02 , H05B6/00 , H05B6/02 , H05B6/10 , B32B5/16
CPC分类号： B29C65/366 , B29C61/0625 , B29C66/91411 , B29C66/91431 , B29C66/91651 , B29C66/91655 , B29C66/919 , B29C66/91921 , H01R4/723 , B29C65/3668 , B29C65/3676 , B29C66/526 , B29C66/53245 , B29C66/73921 , B29C66/91218 , B29C66/91221 , B29C66/94 , B29C66/961 , H01R43/0207 , Y10T428/257
摘要： This invention provides a system for providing heating in an alternating magnetic field using lossy heat producing magnetic particles. This invention discloses a system comprising a combination of particles wherein the first particles are lossy heat producing particles, which have a preselected Curie temperature to provide self-regulating heating in the alternating magnetic field, and the second particles are nonlossy particles which have high permeability which are not heat producing particles but which maintain the coupling of the magnetic circuit and maintain the desired magnetic field focus and intensity through the area in which the first lossy heat producing particles are positioned. Thus, in this invention, when the first lossy heating particles approach or are at their Curie temperature and have declining permeability and would otherwise lose the desired coupling with the magnetic circuit, the second nonlossy high permeability particles maintain the coupling of the magnetic circuit as well as the desired intensity of the magnetic field through the first lossy heating particles to provide the desired field strength throughout the heating period. This invention prevents premature loss of heating due to loss of coupling of the magnetic circuit with the lossy heating particles and provide other advantages. This invention also provides magnetic particles coated with an electrically resistive coating, which coated particles exhibit useful properties in the above particle systems.
摘要翻译： 本发明提供一种使用有损热产生磁性颗粒在交变磁场中提供加热的系统。 本发明公开了一种包括颗粒组合的系统，其中第一颗粒是有损热产生颗粒，其具有预选的居里温度以在交变磁场中提供自调节加热，第二颗粒是具有高磁导率的非磁性颗粒， 不是发热颗粒，而是保持磁路的耦合并且通过第一有损热产生颗粒所在的区域保持期望的磁场聚焦和强度。 因此，在本发明中，当第一有损加热颗粒接近或处于居里温度并且具有下降的磁导率并且否则将失去与磁路的期望耦合时，第二非磁性高磁导率颗粒也保持磁路的耦合 作为通过第一有损加热颗粒的磁场的期望强度，以在整个加热期间提供期望的场强。 本发明可以防止由于磁路与有损加热颗粒的耦合失去而引起的过早的加热损失，并提供其他优点。 本发明还提供涂覆有电阻涂层的磁性颗粒，该涂覆的颗粒在上述颗粒体系中显示有用的性质。
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公开(公告)号：US5425048A
公开(公告)日：1995-06-13
申请号：US19921
申请日：1993-02-19
申请人： Hans G. Heine , Nicolas P. Cignetti
发明人： Hans G. Heine , Nicolas P. Cignetti
IPC分类号： F27B14/06 , B22D41/015 , F27B3/08 , F27D11/06 , H05B6/02 , H05B6/20 , H05B6/24 , H05B6/36 , H05B6/22
CPC分类号： H05B6/102 , B22D41/015 , H05B6/20 , H05B6/24 , H05B6/36
摘要： An induction heating furnace is disclosed comprising an induction coil assembly and a ladle having a metallic shell that supports a crucible holding metal to be heated by the furnace. The ladle is readily separated from the induction coil assembly so that the heated metal may be conveniently and reliably moved among operational stations. The induction coil assembly has a preselected length which is less than the length of the shell. The induction coil assembly surrounds, but does not touch the shell and generates an electromagnetic induction field. The induction coil assembly comprises a coil, upper and lower yokes and an intermediate yoke coextensive with the coil. The upper and lower yokes are separated from each other and electromagnetically coupled together by the intermediate yoke. The upper, lower and intermediate yokes each comprise stacked laminates formed of sheets of ferrous material.
摘要翻译： 公开了一种感应加热炉，它包括一个感应线圈组件和一个钢包，该钢包具有一个金属壳体，该金属壳体支撑待加热的炉子的坩埚。 钢包容易从感应线圈组件分离，使得加热的金属可以在操作台之间方便可靠地移动。 感应线圈组件具有小于壳体长度的预选长度。 感应线圈组件包围但不接触壳体并产生电磁感应场。 感应线圈组件包括线圈，上下轭和与线圈共同延伸的中间轭。 上磁轭和下磁轭彼此分离并通过中间磁轭电磁耦合在一起。 上，下和中间轭都包括由铁质材料片形成的堆叠层压板。
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公开(公告)号：US5406055A
公开(公告)日：1995-04-11
申请号：US70944
申请日：1993-06-04
申请人： Thomas H. McGaffigan
发明人： Thomas H. McGaffigan
IPC分类号： H05B6/00 , B29C35/02 , B29C35/08 , B29C55/22 , B29C61/06 , B29C61/08 , B29L23/00 , H05B6/02 , H05B6/10
CPC分类号： B29C61/08 , B29C35/0272 , B29C35/08 , B29C55/22 , H05B6/106 , B29C2035/0816 , B29K2105/16 , B29K2995/0008
摘要： An apparatus for producing a heat recoverable plastic article such as a tube by deforming the article from a heat-stable configuration to a heat-unstable configuration. The heat-unstable configuration will return to the heat-stable configuration when the article is heated to above the heat recovery temperature. The article is heated such that the article is at a temperature no lower than the heat recovery temperature during the deforming step by lossy particles dispersed in the article or in a tool used in the deforming step. The lossy particles allow auto-regulated heating of the article since the particles cannot be heated beyond their Curie transition temperature when subjected to an alternating magnetic field. These particles are preferably ferrites. Alternatively, the tool can include a braided mesh tubing of a ferromagnetic alloy wire. The article is cooled in the heat-unstable configuration to a temperature below the heat recovery temperature while preventing the article from returning to the heat-stable configuration. The tool can be a mandrel, expandable tube or caterpillar.
摘要翻译： 一种用于通过使制品从热稳定构型变形成热不稳定构造来制造诸如管的可热回收塑料制品的装置。 当制品被加热到高于热回收温度时，热不稳定构型将返回到热稳定构型。 将制品加热使得制品在变形步骤期间的温度不低于分散在制品中的有害颗粒或变形步骤中使用的工具中的热回收温度。 有损的颗粒允许自动调节制品的加热，因为当经受交变磁场时，颗粒不能被加热到超过其居里转变温度。 这些颗粒优选为铁氧体。 或者，该工具可以包括铁磁合金线的编织网管。 制品在热不稳定构型下冷却到低于热回收温度的温度，同时防止制品返回到热稳定构型。 该工具可以是心轴，可扩张管或毛虫。
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公开(公告)号：US5403994A
公开(公告)日：1995-04-04
申请号：US195254
申请日：1994-02-14
CPC分类号： H05B6/362 , C21D9/60 , Y02P10/253
摘要： Transverse flux heating assembly for inductively heating a moving strip includes opposite spaced J-shaped conductors to form an inductive heating coil. The coils define a middle spacing therebetween which is unobstructed by flux guides to permit free translation movement between the conductors in a direction parallel to the strip width. The inductors provide a fully adjustable coil width to accommodate different strip widths in the heating operation.
摘要翻译： 用于感应加热移动条的横向通量加热组件包括相对隔开的J形导体以形成感应加热线圈。 线圈之间形成中间间隔，其通过磁通引导件不受阻碍，以允许导体之间沿平行于带宽度的方向自由平移运动。 电感器提供完全可调的线圈宽度，以适应加热操作中的不同条带宽度。
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公开(公告)号：US5401941A
公开(公告)日：1995-03-28
申请号：US136441
申请日：1993-10-13
申请人： Hans W. Mauve , Wolfgang Andree
发明人： Hans W. Mauve , Wolfgang Andree
CPC分类号： F27D99/0006 , C21D9/60 , H05B6/365 , F27D2099/0015 , F27D2099/0058 , F27M2001/1552 , Y02P10/253
摘要： An apparatus for the inductive cross-field heating of flat material includes a plurality of mutually opposite induction loops being disposed above and below the flat material. At least one pair of induction modules is formed of two induction modules being adjustable independently of one another in their position relative to the flat material. Each induction module has two mutually opposite U-shaped induction loops having geometries and dimensions which are invariable, base legs which can be positioned in such a way that they terminate at least a predeterminable distance in front of one edge of the flat material and within the width of the flat material, and two side legs which can be positioned in such a way that they project at least a predeterminable distance beyond the other edge of the flat material. The induction loops of the two induction modules of a pair of induction modules are open towards oppositely directed sides, with the result that the side legs of only one induction loop project beyond each edge of the flat material.
摘要翻译： 用于平面材料的感应交叉场加热的装置包括多个相互相对的感应线圈，其设置在平坦材料的上方和下方。 至少一对感应模块由两个感应模块形成，两个感应模块在它们相对于扁平材料的位置上彼此独立地可调节。 每个感应模块具有两个相互相对的U形感应环，其具有几何形状和尺寸，其是不变的基部腿，其可以以这样的方式定位，使得它们在平坦材料的一个边缘的前面终止至少可预定的距离， 扁平材料的宽度和两个侧腿，其可以以这样的方式定位，使得它们至少突出超过平坦材料的另一边缘的可预定距离。 一对感应模块的两个感应模块的感应回路朝相反方向打开，结果是只有一个感应环的侧腿突出超过扁平材料的每个边缘。
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公开(公告)号：US5376774A
公开(公告)日：1994-12-27
申请号：US1616
申请日：1993-01-08
CPC分类号： H05B6/362 , H05B6/065 , H05B6/1245 , Y02B40/126
摘要： Solenoid coils are provided that produce relatively low irradiation of electromagnetic fields with intense fields internally thereof for purposes of heating a metallic element, preferably a ferromagnetic element having a Curie temperature selected for the purpose for which the coil structure is to be employed, the coil structure in one embodiment comprising two coaxial coils of substantially equal diameter interconnected to produce in response to an alternating current being applied thereto out of phase magnetic fields that do not substantially interfere with one another as a result of the spacing between the coils. In a second embodiment the two coils are located between two additional coils that buck axial fields thereby together with fall off of the fields as the cube of the distance from the main coils provide a structure with low external radiation. The method of forming the first coil structure includes winding a pancake coil in the form of a spiral, rotating out of the plane of the coil the innermost leg of the spiral to provide the desired spacing of the coils, forming the pancake into a cylindrical shape with the cross members of the pancake being laid one over the other to provide cancellation of the fields produced by these members.
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