GLAND PACKING MADE OF EXPANDED GRAPHITE AND FORMING CORD FOR USE IN THE SAME

摘要

PROBLEM TO BE SOLVED: To ensure a stable friction reducing effect for a long period. SOLUTION: A core 4 comprising a lamination of a plurality of expanded graphite tapes 1 is covered over the surface with yarn 5 of an ultrafine fluoro- resin fiber of braid-over-braid construction to form a bar 6. The bar is cut into a prescribed length and press-molded into a ring, which forms expanded graphite gland packing 8.