摘要:
Process for treating a body of steel to promote its adherence to a composition which includes at least a rubber, containing the following points: a body at least the surface of which is of stainless steel is used, this steel containing at least 0.02% and at most 0.2% carbon, at least 3% and at most 20% nickel, at least 12% and at most 28% chromium, the sum of the nickel and the chromium being at least equal to 20% and at most equal to 35%, all of these percentage values being by weight; the structure of the steel includes at least 20% by volume of martensite and is without austenite or it comprises less than 80% thereof by volume; the surface of the body is activated and then treated with at least one starting silane so that it is covered with a film constituted only, or substantially only, of one or more silanes, in such a manner that this surface treated in this way can be placed directly in contact with the composition. Articles comprising a rubber composition and a metal body which has been treated in accordance with the process of the invention, such articles being for instance tires.
摘要:
Process for treating a body of steel to promote its adherence to a composition which includes at least a rubber, containing the following points:a body at least the surface of which is of stainless steel is used, this steel containing at least 0.02% and at most 0.2% carbon, at least 3% and at most 20% nickel, at least 12% and at most 28% chromium, the sum of the nickel and the chromium being at least equal to 20% and at most equal to 35%, all of these percentage values being by weight; the structure of the steel includes at least 20% by volume of martensite and is without austenite or it comprises less than 80% thereof by volume;the surface of the body is activated and then treated with at least one starting silane so that it is covered with a film constituted only, or substantially only, of one or more silanes, in such a manner that this surface treated in this way can be placed directly in contact with the composition.Articles comprising a rubber composition and a metal body which has been treated in accordance with the process of the invention, such articles being for instance tires.
摘要:
Process for treating a body of steel to promote its adherence to a composition which includes at least a rubber, containing the following points:a body at least the surface of which is of stainless steel is used, this steel containing at least 0.02% and at most 0.2% carbon, at least 3% and at most 20% nickel, at least 12% and at most 28% chromium, the sum of the nickel and the chromium being at least equal to 20% and at most equal to 35%, all of these percentage values being by weight; the structure of the steel includes at least 20% by volume of martensite and is without austenite or it comprises less than 80% thereof by volume;the surface of the body is activated and then treated with at least one starting silane so that it is covered with a film constituted only, or substantially only, of one or more silanes, in such a manner that this surface treated in this way can be placed directly in contact with the composition.Articles comprising a rubber composition and a metal body which has been treated in accordance with the process of the invention, such articles being for instance tires.
摘要:
An elongated steel element (12) with a martensite, tempered martensite, bainite or sorbite structure has a polymer coating (16) with a thickness lower than 20 μm immediately upon the elongated steel element (14). The friction coefficient and corrosion resistance are both improved by the polymer coating at a lower cost.
摘要:
The present invention provides a stainless steel wire for a carcass of a tire and a process for making such a wire. The wire comprises at least 0.02% and at most 0.2% carbon, at least 3% and at most 20% nickel, at least 12% and at most 28% chromium, the sum of the nickel and chromium being at least equal to 20% and at most 35% (% in weight). The structure of the steel comprises at least 20% in volume of martensite and it is devoid of austenite or it comprises less than 80% of it in volume.
摘要:
This invention relates to high carbon steel wire or cord suitable for use as a reinforcement for vehicle tires. By "high carbon steel" is meant here a steel of at least 0.2% C.
摘要:
A hybrid steel cord and method of making such cord which includes, in contact with one or more carbon steel wire(s), at least one stainless steel wire whose microstructure contains less than 20% of martensite (% by volume). Articles made of plastic and/or rubber, in particular tire envelopes or the carcass reinforcement plies of such envelopes embodying such cords.
摘要:
A stainless steel wire for reinforcing the crown (1) of tires (100), comping at least 0.02% and at most 0.2% carbon, at least 6% and at most 10% nickel, at least 16% and at most 20% chromium, the content of molybdenum of the steel being zero or at most equal to 5%, the total of the nickel, chromium and molybdenum being at least 23% and at most 28.5%, all these percentages being % by weight; the structure of the steel comprises at least 50% by volume martensite and it is without austenite or comprises less than 50% by volume thereof. Assemblies (620), reinforcement plies (62) and tires (100) comprising this wire. Process for preparing this wire.
摘要:
Steel ribbons and wires having quenched martensite or bainite microstructure are disclosed having an organic adhesive coating which is degraded at the steel-adhesive interface. The products are useful as steel tire reinforcements.
摘要:
A steel member, essentially rectangular in cross-section, having an aspect ratio greater than 2 having an adhesive coating on the surface thereof, wherein the reinforcing member is characterized by a tensile strength greater than 200 ksi and a microstructure of tempered martensite, bainite and mixtures thereof.A method is disclosed for making a steel member comprising the steps of slitting in coil form steel stock containing more than about 0.40% carbon, continuously heat treating the stock so as to obtain a microstructure of tempered martensite, bainite or mixtures thereof and then applying an adhesive coating to the stock.