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Abstract: The dynamic seal of spin shaft with magnetic fluid is
studied and a test unit for magnetic fluid seal is established .The new
method is presented for proof the theory . In the experiment, the
relationship between the seal capacity of magnetic fluid and the
different seal gap is determined. The result shows that the seal
capacity of magnetic fluid is raised with the increase of seal stage and
the decrease of seal gap at certain range . When the seal gap is between
0.05 mm and 0.20 mm, the result is better and the number of seal stage
has an optimum value. But it is known by investigating that the seal
capacity is not better when the gap smaller, that the capacity is worser
when the gap too smaller.
Key words: Magnetic fluid Magnetic fluid seal Seal gap Seal capacity
CLC No: TH
117.1 TQ 584.1
云南省教育厅科研基金项目(994207,
022Y123). Received 20011008, received in revised form 20020620
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