| 摘要 |
A T-section profile (1) is passed between two spaced rollers (6, 7) so that the stem (4) of the profile lies in an annular groove (8) in the second roller. The rollers are then rotated to elongate the flange (3) of the T and thus elongate the stem. - Upon emerging from between the rollers, the stem adopts the curvature of the grooved roller. Before rolling, the angular connection area between the flange and stem is of oversized curvature. The grooved roller dia. is equal to the dia. of the lower face of a flange (5) of a brake shoe to be mfd.
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