| 摘要 |
1,142,990. Sinterings comprising P.T.F.E. and titanium. MONTECATINI EDISON S.p.A. 2 Feb., 1968 [7 Feb., 1967], No. 5333/68. Heading B5A. [Also in Division C3] Sinterings are prepared by preliminary mixing of a mixture comprising polytetrafluoroethylene powder loaded with titanium micropowder, preforming of the mixture in a compression mould at from 4000 to 6000 kg. per sq. cm., sintering of the compacted mixture by slow heating to between 300‹ C. and 450‹ C. for from 1 to 3 hours, and gradual cooling of the sintering. |
