In order to work out the problem of high air leakage rate of sintering machine at iron and steel works
a simulated magnetic seal device for sintering machine has been manufactured and the magnetic seal test to simulate slit status of sintering machine was carried out by using permanent magnetic alloy NdFeB as seal magnetic source.Results showed that under the action of magnetism
the seal medium was kept within slit to form a dense uniform seal shield so the seal negative pressure arrived 50 kPa at 15~300 ℃.If this magnetic seal technique is used to actual sintering machine the air leakage rate will reduce to “0".