公开(公告)号：US5622562A

公开(公告)日：1997-04-22

申请号：US449418

申请日：1995-05-24

申请人： Robert A. Innes ,  Neil L. Brockman

发明人： Robert A. Innes ,  Neil L. Brockman

IPC分类号： B05C5/00 ,  B05C5/02 ,  B05C9/04 ,  B05C11/10

CPC分类号： B05C5/0295 ,  B05C11/1042 ,  B05C5/001 ,  B05C5/0254 ,  B05C5/0266 ,  B05C9/04

摘要： A process and apparatus for coating a surface of an elongated strip article, e.g. aluminum sheet, with a layer of solid polymer material. The process involves heating the polymer to produce a melt having a viscosity of at least 1000 centipoise when measured according to ASTM D4449 at 1 radian per second, extruding the melt onto a moving surface of the strip article through an elongated slot in a coating head having an extended surface adjacent to the slot arranged at an angle to the moving surface to form a coating gap converging in the direction of movement, thereby forming a coating on the strip article, and pushing the coating head towards the surface of the strip article as the melt is extruded as the coating onto the surface from the slot to reduce the coating thickness to a desired range by pressing the extended surface of the coating head onto the coating as the coating is formed. The apparatus includes coating heat, provided with a heater to maintain the viscosity of the melt, and load application device for the coating head, as well as equipment for melting the polymer and supplying the melt under pressure and at the desired temperature to the coating head. The process and apparatus allows strip articles to be coated with thin (1-100 microns) coatings of polymer materials without employing liquids as solvents or the like that cause atmospheric pollution problems.

摘要翻译： 用于涂覆细长带状物品的表面的方法和设备，例如。 铝板，具有一层固体聚合物材料。 该方法包括加热聚合物以产生具有至少1000厘泊的粘度的熔体，当根据ASTM D4449以每秒1弧度的速度测量时，将熔体挤出到带材制品的移动表面上，该细长的槽在涂覆头中具有 与所述槽相邻的延伸表面，所述延伸表面与所述移动表面成一定角度设置，以形成在所述移动方向上收敛的涂层间隙，从而在所述带状物品上形成涂层，并且将所述涂覆头朝所述带状物品的表面推压， 熔融物作为涂层从槽挤出到表面上，以通过在涂层形成时将涂覆头的延伸表面压到涂层上将涂层厚度减小到所需范围。 该设备包括涂覆热量，设置有加热器以保持熔体的粘度，以及用于涂覆头的负载施加装置，以及用于熔化聚合物并在压力和期望温度下将熔体供应到涂覆头的设备 。 该方法和设备允许带状制品涂覆聚合物材料的薄（1-100微米）涂层，而不使用引起大气污染问题的液体作为溶剂等。