Device and method of correcting extrudate bow

Disclosed is an apparatus (200) and a method to extrude a honeycomb, providing correction in bowing of the extruded honeycomb structure, employs a deflector device (100) having a base plate (112) including an opening (134) aligned in a direction parallel to the extrusion axis (A) through which the plastic material is conveyed to the die (12). The deflector device (100) includes a bow plate (130) movably mounted to the downstream or upstream side of the base plate (112). The bow plate (130) includes a constant area aperture (134). The deflector device (100) positioned upstream of extrusion die (12) imparts a degree of bow reduction by the position of the constant area aperture (134) over the opening (132) imparting a pressure drop gradient on the flow stream entering the die (12). 披露了种挤压蜂窝的设备(200)和方法，该设备和方法提供对于所挤压蜂窝结构的弓曲的校正并采用偏转器装置(100)，该偏转器装置具有基板(112)，该基板包括在平行于挤压轴线(A)的方向上对准的开口(134)，且塑料材料穿过该开口传送至模具(12)。该偏转器装置(100)包括弓曲板(130)，该弓曲板可动地安装于基板(112)的下游侧或上游侧。该弓曲板(130)包括恒定面积的孔(134)。定位在挤压模具(12)上游的偏转器装置(100)通过将恒定面积的孔(134)