METHOD FOR MANUFACTURING Ti COMPACT

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a Ti compact used in such a personal ornament as the band of a wristwatch or the frame of a pair of spectacles, etc. SOLUTION: A sponge Ti powder is warm-extracted at <=700 deg.C in >=1.5 extraction ratio and formed to manufacture the Ti compact with >=20% of the full length of the grain boundary in contact with a metal.