摘要:
The present invention provides a spreader assembly (2) suitable for opening and spreading a fiber strand into smaller strands or individual filaments. The spreader assembly (2) comprises at least one passageway (21) having an inlet opening (211) for receiving said fiber strand and having an outlet opening (232) through which said fiber strand exits said passageway (21), a divergent zone (23) within the passageway (21) having an entrance end (231) and an exit end (232), and at least one through hole (242) connected to the passageway (21) at an angle and suitable for introducing the air flow thereto. In order to increase the efficacy of opening a fiber strand, the angle of through hole (242) is substantially perpendicular with respect to the longitudinal direction of the passageway (21). In order to increase efficacy of spreading the opened fibers, the divergent zone has a flat cross-section and the area of said exit end (232) is larger than the one of the entrance end (231).
摘要:
The present invention concerns an assembly and a kit of parts comprising: (a) An oxy-burner (1) comprising a body extending along a burner body axis, Xb, and comprising a downstream end ending at a free end of the downstream end, said body enclosing a fuel line (1F) and an oxygen line (1Ox) separate from the fuel line, both fuel line and oxygen line having a separate outlet at or adjacent to the free end of the downstream end (1 D) of the oxy-burner, wherein a cross-sectional area normal to Xb of said downstream end of the oxy-burner body decreases towards the free end of the downstream end; (b) A cooling unit (3) comprising: • a cooling plate (5) made of a thermally conductive material, defined by a first and a second main surfaces separated by a thickness of said cooling plate, and an aperture extending from a large opening at the first main surface to a narrow opening to the second main surface, wherein the aperture is defined by an aperture wall which geometry matches the geometry of the downstream end of the oxy-burner to form a thermal contact therewith when the downstream end is inserted in the aperture; • a cooling channel (3C) defined by walls and comprising an inlet (3U) and an outlet (3D) for circulating a refrigerating fluid, wherein a cooling wall (5W) of said cooling channel is formed by a portion of the cooling plate.
摘要:
The present invention concerns a bushing assembly comprising: (a) a liquid glass feeding unit arranged upstream of, and in fluid communication with, (b) a first and second tip plate assemblies (1A, 1 B) extending along a longitudinal direction, arranged side by side, and each surrounded by side walls and end walls and, the first and second tip plate assemblies being separated from one another by a stiffening rib structure (21) extending along said longitudinal direction,
characterized in that, the feeding unit comprises a glass distribution manifold (2), which defines two separate fluid communication paths to the first and second tip plate assemblies (1A, 1 B), and in that, the stiffening rib structure (21) forms an integral part of the floor of the manifold (2).
摘要:
The present invention concerns a sizing composition for glass fibres comprising: (a) A silane based coupling agent mixture, (b) A film former, (c) Additives, Characterized in that, the silane based coupling agent mixture comprises (d) At least 15 wt.% of at least one dialkoxysilane, and (e) At least 20 wt.% of at least one (meth)acryloxysilane, wherein the wt.% are measured with respect to the total active solid weight of silane based coupling agent. The present invention also concerns a polymeric composite reinforced with such glass fibres.
摘要:
The present invention concerns a sizing composition for glass fibres comprising the following components: (a) A silane based coupling agent which is not an aminosilane; (b) A film former; (c) A borate; (d) A lubricant
Characterized in that, at least 75 wt.% of the silane coupling agent present in the composition is dialkoxylated. It also concerns a glass fibre sized with the reaction product of said sizing composition, as well as a polymeric composite reinforced with such glass fibres.
摘要:
The present invention concerns Glass fibre of quaternary composition comprising SiO 2 , Al 2 O 3 , CaO, and MgO as major components, characterized by: €¢ 21,0
摘要:
An impregnation system (1) suitable for impregnating filaments continuously with an impregnating substance (8), the system (1) comprising an impregnation assembly (3) comprising: (c) at least one passageway (30) for the filaments having an entrance end (301) and an exit end (302); and (d) at least one passageway (323) for the impregnating substance having at least one inlet (325) for the impregnating substance and at least two outlets (324) for the impregnating substance,
wherein: - the passageway (323) for the impregnating substance is connected to the passageway (30) for filaments via the outlets (324) for the impregnating substance ; and - the at least two outlets (324) for the impregnating substance have an oblong shape disposed across the flow (A) of filaments and oppose to each other; and - the passageway (30) has a flat cross section.
摘要:
The present invention concerns a glass fibre manufacturing plant comprising a front end or forehearth forming a passage for conveying molten glass and defined by a first and second opposite longitudinal walls, wherein each longitudinal wall is made of a refractory masonry comprising a cavity of width, Wc, and height, H1c, formed by a floor defined by a base wall, by lateral walls defined by two spacer bricks and by a ceiling defined by a lintel resting on each of the two spacer bricks, and further comprising a support block (20) comprising a hot cuboid portion of width, w, and height, h, wherein w