| 摘要 |
pulp-and-paper industry. SUBSTANCE: chemical fiber has profile of section composed of rhombs interconnected with their apexes along line of their smaller diagonals or spaced one from the other. Ratio of heights of projections of central rhombs and projections of marginal rhombs is 1.15-1.45. Ratio of distance from axis of symmetry to projection on larger diagonal of rhombs and distance from axis of symmetry to rhomb connecting slot is 3.20-3.40. Ratio of smaller diagonal of rhombs and distance between apexes of rhombs located on axis of symmetry is 0-0.25. Number of rhombs may be 1-2. EFFECT: improved quality of chemical fibers. 2 cl, 1 dwg |
