摘要:
Ruban étroit en acier au carbone à très bas taux de carbone et haute résistance à l'état écroui, caractérisé par les points suivants: l'acier au carbone comprend (% en masse) entre 0,05% et 0,4% de carbone, entre 0,5% et 4% de manganese, entre 0,1% et 2,5% de silicium, optionnellement (i) moins de 1,5% d'aluminium, (ii) moins de 0,5% de chacun des métaux bore, chrome, cobalt, cuivre, molybdène,nickel, niobium, titane, tungstène, vanadium, zirconium, et (iii) moins de 0,05% de chacun des éléments phosphore, soufre, azote, ou de terre rare, le reste étant constitué de fer et d'impuretés inévitables résultant de l'élaboration; la microstructure de l'acier au carbone écroui est principalement martensitique ou ferrito-martensitique; la résistance notée Rm du ruban est supérieure à 1200 MPa et son allongement à la rupture noté At est compris entre 1% et 5%. Composite (métal/caoutchouc) comportant un tel ruban, utilisation d'un tel ruban ou tel composite pour le renforcement d'un article en caoutchouc tel qu'un pneu pour véhicule automobile.
摘要:
An elongated steel element adapted for the reinforcement of rubber products is covered with a ternary alloy or quaternary alloy coating of copper-M-zinc. M is one or two metals selected out of the group consisting of cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum. The copper content inside the coating ranges from 58 weight per cent to 75 weight per cent. The content of the one or two metals inside said coating ranges from 0.5 weight per cent to 10 weight per cent. The remainder is zinc and unavoidable impurities. The one or two metals are present throughout the coating. Phosphorus is present on and/or in the coating in an amount of more than 1 and less than 4 milligram per square meter of the coating. The coating further comprises one or,ore compounds which complex with the copper in the coating to form an insoluble film on its surface. Good results are obtained for steam ageing and cured humidity adhesion. Furthermore, a corresponding method for manufacturing such an elongated steel element is disclosed.
摘要:
Drawing stock made of microalloyed steel having a carbon content of 0.2-0.6 wt % and comprising at least one alloying element selected from the group which consists of vanadium, molybdenum and chromium, in a proportion by weight of at least 0.05 % and at most 0.5 % of the alloying element(s). Such drawing stock is manufactured with a view to producing a ready-to-use metal wire by shaping and heat treatment, said wire being useful for reinforcing plastic or rubber articles, particularly pipes, belts, plies and tyre casings.
摘要:
A high-strength ultrafine steel wire with excellent workability in stranding, which comprises, by weight, 0.85 to 1.10 % of carbon, 0.10 to 0.70 % of silicon, 0.20 to 0.60 % of manganese, 0.10 to 0.60 % of chromium, 0.005 % or less of aluminum, and further, if necessary, 0.10 to 2.00 % of nickel or/and 0.10 to 3.00 % of cobalt, and the balance of iron and inevitable impurities; is provided with a brass plating layer; and has a diameter of 0.1 to 0.4 mm, a tensile strength of 400 kgf/mm2 or above, a depth of an indentation on the surface of the brass plating layer of 2 νm or less, a distance between the indentations of 50 νm or less and an area rate of the indentations of 10 to 80 %. A process and an apparatus for producing said wire by subjecting the material of the steel wire to patenting, brass plating and drawing, followed by shot peening of air blasting type under tensions.
摘要:
Le fil d'acier présentant une microstructure intégralement ferritique, perlitique ou ferrito-perlitique présente un taux de carbone en masse C tel que 0,05 % ≤ C 1 - 400 m ) de tréfilage du fil d'un diamètre D vers un diamètre d', - au moins une deuxième série ininterrompue d'étapes (700 1 - 700 m ) de tréfilage du fil de diamètre d' vers un diamètre d, - une ou plusieurs étapes intermédiaires entre les première et deuxième séries ininterrompues d'étapes (400 1 - 400 m , 700 1 - 700 m ) de tréfilage du fil, le fil présentant une température inférieure ou égale à 300°C lors de la ou de chaque étape intermédiaire.
摘要:
Le fil d'acier de diamètre d exprimé en mm présente une microstructure intégralement ferritique, perlitique ou ferrito-perlitiqueetun taux de carbone en masse C tel que 0,05% ≤ C
摘要:
An elongated steel element adapted for the reinforcement of rubber products is covered with a ternary or quaternary alloy coating of copper-M-zinc. M is one or two metals selected from the group consisting of cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum. The copper content inside the coating ranges from 58 weight per cent to 75 weight per cent, the content of said one or two metals inside the coating ranges from 0.5 weight per cent to 10 weight per cent, the remainder is zinc and unavoidable impurities. The one or two metals are present throughout the coating. The phosphorus is present on and/or in the coating in an amount ranging from 0.3 milligram per square meter to 1 milligram per square meter of the coating. The coating further lacks triazole residues. Good results for under cure adhesion have been obtained. Furthermore, a corresponding method for manufacturing such an elongated steel element is disclosed.