公开(公告)号：US5352871A

公开(公告)日：1994-10-04

申请号：US657996

申请日：1991-02-20

申请人： James B. Ross ,  Dexter C. Tight, Jr. ,  Charles W. Tinsley ,  Hideki Kasa

发明人： James B. Ross ,  Dexter C. Tight, Jr. ,  Charles W. Tinsley ,  Hideki Kasa

IPC分类号： F16L47/02 ,  B21F3/04 ,  B21F27/10 ,  B29C65/32 ,  B29C65/36 ,  B29C73/10 ,  B29L23/00 ,  B29L31/24 ,  H05B6/10 ,  H05B6/14 ,  H05B6/36 ,  H05B6/40 ,  H05B6/44

CPC分类号： H05B6/40 ,  B29C65/362 ,  B29C65/364 ,  B29C65/3668 ,  B29C66/1122 ,  B29C66/5221 ,  B29C66/52241 ,  B29C66/5229 ,  B29C66/52292 ,  B29C66/81423 ,  B29C66/8324 ,  B29C65/3676 ,  B29K2995/0008

摘要： The invention provides a system and method for joining plastic members including induction heaters fabricated from a conductive wire coated with a ferromagnetic material and providing ratios of at least 4 to 1 between the areas over the spaces between wires and the area of the wires surrounding the open spaces; the heaters being located preferably between plastic members to be joined. The heaters may be located adjacent the two ends of a plastic connector adapted to receive a pipe in at least one and probably two ends with the heaters being activated preferably by induction heating to produce welding of the plastics to one another. One form of heater is fabricated on a hollow cylindrical mandrel having helical grooves in which the wire is wound and having radial holes arranged in axially extending rows spaced circumferentially about the mandrel so the axially extending wires may be spot welded to the wires in the helical grooves at each hole. Rings of wire may also be held together by axially extending grooves. Saddle fittings and patches may also be applied to pipes or other plastic members employing such heaters. Induction coils in the form of clamshell and jaw-like structures may be employed as appropriate to energize such heaters and flexible coil structures may also be employed.

摘要翻译： 本发明提供了一种用于连接塑料构件的系统和方法，包括由涂覆有铁磁材料的导电线制成的感应加热器，并且在电线之间的空间之间的区域之间提供至少4比1的比率，以及围绕开口的电线的面积 空间; 加热器优选位于待接合的塑料构件之间。 加热器可以位于塑料连接器的两端附近，该塑料连接器的两端适于在至少一个可能的两个端部接收管，优选地通过感应加热来激活加热器，以产生塑料彼此的焊接。 一种形式的加热器制造在具有螺旋槽的中空圆柱形心轴上，其中线缠绕在其中，并且具有排列成沿着心轴周向间隔开的轴向延伸的排的径向孔，使得轴向延伸的线可以点焊到螺旋槽中的线 在每个洞。 线的环也可以通过轴向延伸的凹槽保持在一起。 马鞍配件和贴片也可以应用于使用这种加热器的管道或其他塑料构件。 可以适当地采用蛤壳式和颚式结构形式的感应线圈来激励这种加热器，并且还可以使用柔性线圈结构。