公开(公告)号：US06486432B1

公开(公告)日：2002-11-26

申请号：US09448329

申请日：1999-11-23

申请人： Paul N. Colby ,  Joeo M. Gatti ,  Shawn P. Bodnar ,  Paul T. Colby

发明人： Paul N. Colby ,  Joeo M. Gatti ,  Shawn P. Bodnar ,  Paul T. Colby

IPC分类号： B23K2600

CPC分类号： B23K26/302 ,  B23K2101/06

摘要： A system and process is provided for cladding the interior of plasticating barrels or any other interior surface. The cladding operation uses a laser head that carries out a spiral welding operation to create a smoother lining than is capable with conventional welding techniques. A number of different techniques can be used, including the use of feeding laser energy at one end of a tube to be reflected from laser aiming optics inserted through a second end of the tube. Unidirectional welding can be used to facilitate gravity as a smoothing agent. In another embodiment omnidirectional welding can be carried out using a shaped mirror and a donut-shaped laser pattern. The cladding operation can be simplified by baking a coating of the welding matrix and anti-abrasive material onto the interior of the surface to be clad prior to the welding operation.

摘要翻译： 提供了用于包覆塑化桶的内部或任何其它内表面的系统和工艺。 包层操作使用执行螺旋焊接操作的激光头，以产生比通常的焊接技术能够更平滑的衬里。 可以使用许多不同的技术，包括使用在管的一端馈送激光能量以从穿过管的第二端的激光瞄准光学器件反射。 可以使用单向焊接来促进重力作为平滑剂。 在另一个实施例中，可以使用成形镜和环形激光图案来执行全方向焊接。 可以通过在焊接操作之前将焊接基体和抗磨料材料的涂层烘烤到要包层的表面的内部来简化包层操作。

公开(公告)号：US5439633A

公开(公告)日：1995-08-08

申请号：US281230

申请日：1994-07-27

申请人： Michael F. Durina ,  Shawn P. Bodnar ,  Timothy W. Womer

发明人： Michael F. Durina ,  Shawn P. Bodnar ,  Timothy W. Womer

IPC分类号： B29C45/52 ,  B29C45/60 ,  B29C47/64 ,  B29B7/14

CPC分类号： B29C47/60 ,  B29B7/428 ,  B29C45/52 ,  B29C45/60 ,  B29C2045/528 ,  B29C47/0009

摘要： An apparatus and method for controlling thermoplastic mixing in a plastic extrusion machines used for injection molding, blow molding or other reciprocating molding process. The plastic extruder having a rotating helical screw within a cylindrical shell with an automatic shut-off and mixing valve secured to the helical screw at the downstream end of the screw. The automatic shut-off and mixing valve includes a unitary valve body with a poppet. A plurality of mixing groove pairs are arranged extending substantially longitudinally on the surface of the valve body. Select angular bores extend from the groove pairs to the poppet. The poppet is axially movable within and rotatable relative the valve body. The poppet has an axial stem extending into a longitudinal axial bore within the valve body. An elastic means is positioned on the rearward end of the poppet maintaining the valve in a normally closed position against a seating surface of the valve body when there is no rotation of the helical screw.

摘要翻译： 一种用于在用于注射成型，吹塑或其它往复模塑工艺的塑料挤出机中控制热塑性混合的装置和方法。 该塑料挤出机在圆柱形壳体内具有旋转的螺旋螺旋，其中自动关闭和混合阀固定在螺杆的下游端处的螺旋螺杆上。 自动关闭和混合阀包括具有提升阀的单体阀体。 在阀体的表面上大致纵向地设置有多个混合槽对。 选择角孔从槽对延伸到提升阀。 提升阀可在阀体内轴向移动并相对于阀体可转动。 提升阀具有延伸到阀体内的纵向轴向孔的轴向杆。 当不存在螺旋形螺杆的旋转时，弹性装置位于提升阀的后端上，将阀保持在常闭状态，抵靠阀体的阀座表面。

公开(公告)号：US5318357A

公开(公告)日：1994-06-07

申请号：US899347

申请日：1992-06-16

申请人： Paul N. Colby ,  Bradley P. Smith ,  Shawn P. Bodnar

发明人： Paul N. Colby ,  Bradley P. Smith ,  Shawn P. Bodnar

IPC分类号： B29C47/60 ,  B01F7/08 ,  B29B7/42

CPC分类号： B29C47/60 ,  B29C47/6075 ,  B29C47/0009

摘要： A screw for use in an plasticating injection apparatus includes a plurality of interrupted primary flights. An outer surface of a primary valley is formed by the primary flights and features a plurality of plateaus. The plateaus span adjacent sections of the primary flights and define shallow levels between deeper levels of the primary valleys. This depth differential contributes to a turbulent mixing action which, along with the primary and secondary valleys, contributes to improve mixing action within a metering section of the screw. The primary flights are interrupted by secondary valleys which are of opposite hand to the primary valleys.

摘要翻译： 用于塑化注射装置的螺钉包括多个中断的一次航行。 主谷的外表面由主飞行形成并且具有多个平台。 高原跨越主要航段的相邻部分，并定义较深层次的主要峡谷之间的浅层。 该深度差异有助于湍流混合作用，其与主要和次要谷一起有助于改善螺杆的计量部分内的混合作用。 主要航班由与主要山谷相反的次级峡谷中断。