Wear Test Device and Method
    75.
    发明申请

    公开(公告)号:US20170284915A1

    公开(公告)日:2017-10-05

    申请号:US15512049

    申请日:2015-08-26

    Inventor: Gang Hou

    Abstract: A wear testing method includes setting a rotational speed of a rotary drum with a rubber sample attached to an outer surface thereof to a desired speed; setting a pressing load imparted by a contact member to a desired pressing load via a weight member; selecting as the contact member a desired contact member from a plurality of contact members with varying specifications for a contact surface that comes into contact with the surface of the rubber sample; attaching an arm portion that composes a pressing mechanism; rotating the rotary drum; and pressing the contact member against the surface of the rubber sample with the contact member being moveable in a tangent line direction of a rotation direction of the rotary drum, and detecting an amount of displacement in a pressing direction of the contact member pressing against the surface of the rubber sample via a displacement sensor.

    Flow test machine and an associated measurement method, as well as an associated cleaning process

    公开(公告)号:US09746406B2

    公开(公告)日:2017-08-29

    申请号:US14868230

    申请日:2015-09-28

    CPC classification number: G01N11/02 B08B9/04 G01N3/10 G01N11/04 G01N33/442

    Abstract: A flow test machine 2 which, for example, is able to be used for viscosity tests on plastics, comprises a test piston 4, a test channel 38, at least one test weight 72 and a drive unit 92. The test piston 4 is able to move through the test channel 38 by means of a weight force 79 of the test weight 72. The test weight 72 is able to be loaded by an actuating additional force 108, 108′ by means of the drive unit 92 between a starting position 151 and an end position. The actuating additional force 108 enables a movement of the test piston 4 in the direction of the weight force 79, said movement being accelerated in comparison with an effect of the weight force 79. In a melt viscosity test, after a heating step, a thermoplastic plastic is pressed through a test channel 38 by a test piston 4. In a measurement preparation step and/or a cleaning step, the test mass is lowered along a weight force direction 79 under the influence of an actuating additional force 108, 108′. In a method for cleaning, a cleaning step is undertaken by means of an actuating additional force 108, 108′ from the drive unit 92, said drive unit 92 serving to drive a test piston movement during a melt viscosity test.

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