摘要:
This wire stock is made of a microalloyed steel having a carbon content of between 0.2% and 0.6% by weight and furthermore containing at least one alloying element selected from the group consisting of vanadium, molybdenum and chromium, in a proportion, by weight, of at least 0.05% and at most 0.5% of said alloying element or of the combination of said alloying elements. Such wire stocks are manufactured in order to produce, by deformation and heat treatment, a ready-to-use wire which is used, for example, to reinforce articles made of plastics or made of rubber, especially tire covers, plies, belts, hoses.
摘要:
A ready-to-use metal wire comprising microalloyed steel with a structure almost entirely made up of a cold-hammered annealed martensite is disclosed. The wire diameter is of at least 0.10 mm and at most 0.50 mm, and the ultimate tensile strength of the wire is of at least 2800 MPa. The method of producing said wire comprises deforming a wire rod, performing a hardening heat treatment on the deformed wire and heating it to an annealing temperature to cause the formation of a structure almost entirely made up of annealed martensite. The wire is then cooled and deformed. Assemblies comprising at least one such wire, and wire or assemblies used in particular for reinforcing pneumatic tires, are also disclosed.
摘要:
A metal wire having a substrate and a coating. The substrate is a steel the carbon content of which is equal to at least 0.05% and at most 0.6%, this steel having a structure comprising more than 90% work-hardened tempered martensite. The substrate is coated with a metal alloy other than steel. Method of obtaining this wire. A steel machine wire comprising 28% to 96% proeutectoid ferrite and 72% to 4% pearlite is work hardened. A hardening treatment is carried out in order to obtain a structure comprising more than 90% martensite. A depositing of metals is then effected, the wire is heated to cause the formation of an alloy and the formation of a structure comprising more than 90% tempered martensite. The wire is cooled and work hardened. This wire is used, for instance, to reinforce tires.
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:
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:
The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate Af=Ae+Ap of more than 4%. This operational elongation rate does not include the specific elongation As of the “cable” effect. The maximum stress Rm of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.
摘要:
A novel keratinic polymeric product is described which can be used for cosmetic purposes. This product comprises keratin peptide chains of different molecular weights, formed of amino acids bonded to one another by amide groups with more than 75 percent of the cystine linkages being in the form of S-sulphocysteine, the said peptide chains terminating at one end in a free carboxyl group and at their other end in a free amine group, the major part of said chains having a molecular weight of 1,100 to 7,500.
摘要:
The subject of the invention is a novel pharmaceutical composition, especially having an anti-ischaemic action, containing, in combination, a high dosage (within the range of from 20 to 80 mg) of the dihydrochloride (or another mineral or organic salt) of 1-(2,3,4-trimethoxybenzyl)piperazine and a disintegrating agent, such as mannitol or sodium carboxymethyl starch, that has the effect of liberating the salt of 1-(2,3,4-trimethoxybenzyl)piperazine virtually instantaneously in the organism, this composition being, furthermore, advantageously enclosed in a thin coating film or held together by a binder that is itself readily disintegrated in situ in the organism in such a manner that it makes possible a "flash" action, that is to say a virtually instantaneous action, of the above-mentioned salt in situ. This composition is administered to the patient at a dosage of from 20 to 80 mg/day.
摘要:
The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate Af=Ae+Ap of more than 4%. This operational elongation rate does not include the specific elongation As of the “cable” effect. The maximum stress Rm of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.
摘要:
A deodorant composition which prevents the formation of unpleasant odors due to bacterial decomposition of perspiration comprises a cosmetic carrier and, as the active component, a mixture of at least one weak organic acid and at least one salt of a weak organic acid and an aminated organic compound. The composition on application to the desired area of the body maintains the pH of the perspiration at a value of about 3 to 6.