D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
D01D 4/02 (2006.01)
Patent
CA 2492760
The invention relates to spinnerets for forming chemical threads from solutions, in particular to spinnerets made of zirconium based material. The aim of the invention is to develop a spinneret which excludes the adhesion of material thereof to a cutting tool during the embodiment of a small calibrated hole having a perfect shape, thereby increasing the operating life of said spinneret, the stability of a moulding process and the quality of the such produced threads and fibres without degrading the corrosion stability of the spinneret. To that effect, said spinneret is made of a zirconium alloy containing: 0.05-1.1 mass % of niobium; 0.001-0.2 mass % of oxygen; 0.001- 0.006 mass % of nitrogen; 0.001-0.02 mass % of silicium; 0.001-0.05 mass % of iron; 0.001-0.005 mass % of molybdenum; 0.005-0.26 mass % of impurities; the rest being zirconium. Said invention makes it possible to increase the operating time of the spinneret by 8-27 %, the stability of moulding process and improve the quality of threads and fibres.
L'invention appartient au domaine des filières de formation de fils et fibres chimiques à partir de solutions, et notamment de filières faites d'un matériau à base de zircone. L'invention permet de créer une filière qui exclut toute possibilité de collage aux outils de coupe lors de la création d'un orifice d'étalonnage de forme idéale, de faible diamètre, qui permet une plus grande durée de vie de la filière, un processus de formage plus stable et une meilleure qualité des fils et fibres obtenus, et ce sans affecter négativement la résistance de la filière à la corrosion. Selon l'invention, la filière est faite d'un alliage à base de zircone, qui comprend ce qui suit, en % en masse: - niobium - 0,05 - 1,1 - oxygène - 0,001 - 0,2 - azote - 0,001 - 0,006 - silicium - 0,001 - 0,02 - fer - 0,001 - 0,05 - molybdène - 0,001 - 0,005 - impuretés - 0,005 - 0,26 le reste étant constitué de zircone. L'invention permet d'augmenter la durée de vie de la filière de 8 à 27 %, de rendre plus stable le processus de formage et d'améliorer la qualité des fils et fibres.
Beliaev Anatoliy Leonidovich
Kurushin Boris Leonidovich
Lositskiy Anatoliy Frantsevich
Nozdrin Igor Viktorovich
Philippov Vladimir Borisovich
Joint Stock Company "chepetskiy Mechanical Plant"
Macrae & Co.
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