Modified magnetic fluid and the grasping mechanism and gripping device with the use of this modified magnetic fluid

摘要

The invention relates to a modified magnetic fluid 11, whose adhesion to the time at which it is magnetized, by mixing a non-magnetic powder 26 in a magnetic fluid 27, comprising a base solution and ferromagnetic fine particles 25 has, is increased, and a gripping mechanism 10 and a gripping device 30, in which this modified magnetic fluid 11 is used, is provided, wherein the ferromagnetic fine particles 25 in a distributed state in the base solution are present, wherein the non-magnetic powder 26 a larger size and a lower specific weight than the ferromagnetic fine particles 25 has.