Abstract:
PROBLEM TO BE SOLVED: To provide a galvanized prestressing steel strand with low relaxation, of which the galvanized layer has no streak or unbalanced thickness peculiar to a strand, has strengthened adhesion to concrete and has resistance to drawing, and of which each strand and the whole strand has superior corrosion resistance, and provide a manufacturing method therefor, and a manufacturing apparatus. SOLUTION: This galvanized prestressing steel strand has a galvanized layer 3 with a coating weight of 70-700 g/m on each strand 2 having a desired strand shape, which is formed by electroplating, while the strand is slightly loosened and is tightened again into the above strand shape.
Abstract translation:要解决的问题:为了提供一种具有低松弛度的镀锌预应力钢丝绳,其中镀锌层没有条纹特有的条纹或不平衡的厚度,具有增强的对混凝土的粘附性,并且具有抗拉伸性,并且其中每股和 整股具有优异的耐腐蚀性,并提供其制造方法和制造装置。 解决方案:该镀锌预应力钢绞线具有镀锌层3,其镀层重量为70-700g / m 2,每根绞线2具有通过电镀形成的所需绞线形状,而绞合线略微松动,并且是 再次收紧到上述股线的形状。
Abstract:
The present invention concerns a rope (1) comprised of a band (2), mainly having a linear extension with flat faces and a substantially flattened straight cross-section, said rope (1) comprising two pins (11) spaced each other along an axis (y) passing between said pins (11), said band (2) being wound up on said two pins (11), in such a way to continuously form a plurality of overlapped coils, wherein the plurality of band portions (2) extending parallel to said axis (y) passing between a pin (1 1) and the other (11) realize two arms (1', 1") and a bending point (5, 6) in correspondence of each pin (11), said rope (1) comprising at least one clamping device (8; 10; 20; 30; 40; 50) near at least one of said bending points (5, 6), able to direct, from outside toward inside said rope (1), each of said arms (1', 1") in at least one counter-bending point (1 7, 18; 27; 37; 47; 57) in order to block the mutual sliding of said plurality of band (2) portions and the rotation of said rope (1) around at least one of said pins (11), as a result of a loss of balance of the load applied on said rope (1).
Abstract:
Hybrid rope (20) comprising a core element (22) containing high modulus fibers surrounded by at least one outer layer (24) containing wirelike metallic members (26). The core element (22) is coated (23) with a thermoplastic polyurethane or a copolyester elastomer, preferably the copolyester elastomer containing soft blocks in the range of 10 to 70 wt %. The coated material (23) on the inner core element (22) is inhibited to be pressed out in-between the wirelike members (26) of the hybrid rope (20) and the hybrid rope (20) has decreased elongation and diameter reduction after being in use.
Abstract:
Un câble métallique (10) multi-torons à deux couches comprend : - une couche interne (C1) du câble (10) constituée de K>1 torons internes (Tl) enroulés en hélice, - une couche externe (C2) du câble (10) insaturée et constituée de L>1 torons externes (TE) enroulés en hélice autour de la couche interne (C1) du câble (10). Chaque toron interne et externe (Tl, TE) du câble (10) comprend : - une couche interne du toron (Tl, TE) constituée de 2 fils internes, et - une couche externe du toron (Tl, TE) constituée de N fils externes enroulés en hélice autour de la couche interne du toron (Tl, TE).
Abstract:
Au cours du procédé de fabrication d'un câble métallique (10) multi-torons à deux couches: - on enroule en hélice N fils constituant une couche externe d'un toron (Tl, TE) autour de 2 fils constituant une couche interne du toron (Tl, TE) de façon à former le toron (Tl, TE); - on enroule en hélice L>1 torons externes (TE) formés précédemment et constituant une couche externe (C2) insaturée du câble (10) autour de K>1 torons internes (Tl) formés précédemment et constituant une couche interne (C1) du câble (10), - on réalise un surtordage du câble (Tl, TE) enroulé; - on réalise une étape d'équilibrage du câble (10) surtordu de façon à obtenir un couple résiduel nul dans le câble (10), et - on réalise une étape de détordage du câble (10) surtordu équilibré.
Abstract:
A steel cord (10) adapted for the reinforcement of elastomers, comprises a first group and a second group, the second group being helically twisted around the first group with a cord twisting step, the first group comprising a first number of first steel filaments (12), the first number ranging between three and eight, the second group comprising a second number of second steel filaments (14), the second number being equal to or greater than the first number, the first filaments having a twisting step greater than 300mm, both the first steel filaments (12) and the second steel filaments (14) being preformed. The steel cord has a PLE at a tensile tension of 50 Newton between 0.08% and 0.25%. This steel cord has measurable deformation to achieve full elastomer penetration, but also maintains the process-ability and functionality for elastomer reinforcement.
Abstract:
The invention relates to a method for producing a strand or cable (20), in which fibres (2) and/or wires are twisted on a twisting point (3) to form the strand or cable (20). According to the invention the fibres (2) and/or wires are coated with a liquefied matrix material (4) in front of and/or at the twisting point (3) and are embedded in the matrix material (4) during twisting. The fibres (2) and/or wires are immersed in the matrix material in front of and/or at the twisting point (3) and the formed strand or the formed cable (20) are cooled after the twisting in order for the matrix material (4) to solidify, preferably by air or in a cooling liquid, for example water. The invention further relates to a device for carrying out the method and to a cable which can be produced by means of the method.
Abstract:
Câble métallique multitorons de construction K x (L+M), utilisable notamment pour le renforcement de ceintures de pneumatiques pour véhicules industriels, constitué de K torons élémentaires assemblés en hélice selon un pas d' hélice P κ , chaque toron élémentaire : - consistant en un câble (10) à deux couches (Ci, Ce) de construction L+M, gommé in situ, comportant une couche interne (Ci) constituée de L fils (11) de diamètre d 1 , L variant de 1 à 4, et une couche externe (Ce) de M fils (12), M étant égal ou supérieur à 5, de diamètre d 2 assemblés en hélice selon un pas p 2 autour de la couche interne (Ci); - et présentant les caractéristiques suivantes (d 1 , d 2 et p 2 étant exprimés en mm) : - 0,10 1 2 2 κ , la gomme de remplissage est présente dans chacun des capillaires (15) délimités par les L fils (11) de la couche interne (Ci) et les M fils (12) de la couche externe (Ce), ainsi que, lorsque L est égal à 3 ou 4, dans le canal central (13) délimité par les L fils (11) de la couche interne (Ci); le taux de gomme de remplissage (14) dans ledit toron élémentaire (10) est compris entre 5 et 40 mg par g de toron élémentaire.