Method of coating small workpieces with plastic material
    1.
    发明授权
    Method of coating small workpieces with plastic material 失效
    用塑料材料涂抹小工件的方法

    公开(公告)号:US4000338A

    公开(公告)日:1976-12-28

    申请号:US381439

    申请日:1973-07-23

    摘要: Small workpieces to be coated with plastic material are preheated and dropped onto a fluidized bed of plastic powder subjected to compound vibratory motion which causes the powder and the workpieces to move along a helical ramp onto a screen overlying the point of entry, with some of the particles fusing onto the workpiece surfaces to form a film. The remainder of the powder, on reaching the screen, drops back onto the bed as the coated workpieces move on to a receptacle. Fresh workpieces are deposited on the bed through one or more chutes traversing the screen; to prevent the rise of any particles through the chutes, a downward airflow is created therein.

    摘要翻译: 将要用塑料材料涂覆的小工件预热并滴落到经过复合振动运动的塑料粉末流化床上,这导致粉末和工件沿着螺旋斜坡移动到覆盖入口点的屏幕上,其中一些 颗粒融合到工件表面上以形成膜。 当涂覆的工件移动到容器时,剩余的粉末在到达屏幕时落回到床上。 新鲜的工件通过穿过屏幕的一个或多个斜槽沉积在床上; 为了防止任何颗粒通过滑槽的上升,在其中产生向下的气流。

    Apparatus for applying plastic coatings to small bodies
    2.
    发明授权
    Apparatus for applying plastic coatings to small bodies 失效
    塑料涂料应用于小体的设备

    公开(公告)号:US3965858A

    公开(公告)日:1976-06-29

    申请号:US496586

    申请日:1974-08-12

    摘要: Small workpieces to be coated with plastic material are preheated and dropped onto a fluidized bed of plastic powder subjected to compound vibratory motion which causes the powder and the workpieces to move along a helical ramp onto a screen overlying the point of entry, with some of the particles fusing onto the workpiece surfaces to form a film. The remainder of the powder, on reaching the screen, drops back onto the bed as the coated workpieces move on to a receptable. Fresh workpieces are deposited on the bed through one or more chutes traversing the screen; to prevent the rise of any particles through the chutes, a downward airflow is created therein.

    摘要翻译: 将要用塑料材料涂覆的小工件预热并滴落到经过复合振动运动的塑料粉末流化床上,这导致粉末和工件沿螺旋斜坡移动到覆盖进入点的屏幕上,其中一些 颗粒融合到工件表面上以形成膜。 当涂层的工件移动到可接收的位置时,剩余的粉末在达到屏幕时下降到床上。 新鲜的工件通过穿过屏幕的一个或多个斜槽沉积在床上; 为了防止任何颗粒通过滑槽的上升,在其中产生向下的气流。