SINTERED TITANIUM FILTER AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a titanium sintered filter with a small pressure loss and an excellent filter performance by sintering a titanium material of spherical granules at a lower temperature area than its melting point under no pressure. SOLUTION: The sintered titanium filter the percentage of void of which is 35-55% is obtained by sintering a spherical granule obtained by a gas- atomizing method of titanium or a titanium alloy at 850-1,200 deg.C under no pressure in an inert gas atmosphere or a vacuum. In the sintered titanium filter, an average diameter of particles constituting the sintered filter is 10-150μm or the maximum bore diameter of the sintered body is 3-70μm.