Titanium pump is removed by heat treatment method other substances

When excessive hydrogen content of titanium pump, become brittle leaving notched impact toughness and tensile strength of a sharp decline in the general provisions of the hydrogen content of titanium bars shall not exceed 0.015% . To reduce the amount of hydrogen absorption , parts should be removed prior to heat treatment fingerprints, rolling mill mark , grease and other residue , no vapor heat treatment furnace atmosphere . If the hydrogen content of  titanium casting process tube exceeds the allowable value , must be removed by vacuum annealing . Dehydrogenase is generally vacuum annealing at 538-760 ℃, maintained under a pressure lower than 0.066Pa 2-4h.