| 摘要 |
A cutoff tool for severing a neck of a difficult-handling fluid material (a fluid material which is highly viscous, highly adhering, highly cohering, and/or shear thickening) includes a rotating whip, for example a string or a wire. The whip may be rotated at a sufficiently high rate, for example by a motor, so as to prevent adherence of the fluid material to the whip, for example by use of centrifugal forces to fling fluid material off of the whip. A system for filling containers includes a cutoff tool operatively coupled with a filling nozzle and a container clamp. A method of filling a container may include clamping the container, inserting a filling nozzle into the container, dispensing fluid material into the container, withdrawing the filling nozzle from the container during and/or after the filling, drawing back fluid material through the filling nozzle so as to thin a neck of fluid material between the filling nozzle and the filled container, and severing the neck, for example by using a cutoff tool.
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