Method of manufacture of a profiled segment

Details Method of manufacture of a profiled segment Method of manufacture of a profiled segment

1993-07-30

1994-09-20

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

29416, 425 47, 425812, B23H 900, B29C 3300

Patent

active

053491505

ABSTRACT:
In order to assure a safe gas discharge from the cavity formed in the tire-vulcanizing mold during the forming of the tire blanks, the profiled segment (1) be divided along at least one separating line (2) into at least two partial segments (3 to 8), that the separating line (2) extends substantially radially in relationship to the tire mold, and that the separating line (2) cuts the areas of the tire-vulcanizing mold to be vented. Manufacture of the segments is done such that the profiled segment (1) is first manufactured in one piece and is thereafter divided into the partial segments by means of a cutting operation, such as a wire cutting spark-erosion cutting operation, leaving behind a narrow cutting line (FIG. 1).

REFERENCES:
patent: 2756460 (1956-07-01), Heintz, Jr.
patent: 4411175 (1983-10-01), Takahashi et al.
patent: 4543050 (1985-09-01), Takahashi et al.
patent: 4691431 (1987-09-01), Hayata
patent: 4708609 (1987-11-01), Yoda et al.
patent: 4760762 (1988-08-01), Rudneu et al.
patent: 5234326 (1993-08-01), Galli et al.

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