Provided is a tire vulcanizing bladder comprising fluororubber, wherein a plurality of grooves extending in a width direction are formed on a circumference of an outer surface of the tire vulcanizing bladder, and a plurality of recesses connecting the grooves to each other are formed between the grooves. Also provided is a pneumatic tire comprising one or more fluorine-containing particles having a maximum diameter of 1.0 μm or more per area of 100 μm.sup.2 of a tire inner surface, wherein a plurality of bladder ridges extending in a tire width direction are formed on a circumference of the tire inner surface, and a plurality of protrusions connecting the bladder ridges to each other are formed between the bladder ridges.

A method for obtaining carbon-containing material from recyclable tires and rubber products, by mechanically crushing a raw material, from recycled tires in a shredder, supplying a charge to a reactor at temperature, removing gaseous pyrolysis products from the reactor, followed by condensing liquid products, unloading solid residue from the reactor and cooling it, feeding the cooled residue into a crusher, coarsely crushing the solid residue, removing metal from the crushed solid residue in a magnetic separator.

The tire of the present disclosure includes an inner surface layer that forms a tire inner surface and is formed of a thermoplastic resin or contains a thermoplastic resin, and a porous body that is partially embedded in the inner surface layer.

A system for maintaining low pressure within a tire press bladder when the press is open and controlling pressure by using an orifice on the supply line side of the tire press bladder. The supply line runs from a high-pressure supply media to a tire press bladder. A three-way valve alternates in directing high pressure directly through the supply line and directing high pressure to an orifice. Simultaneously the pressure in the bladder is controlled by a regulating valve on the drain side piping. When the press is closed on a tire, the three-way valve supplies high pressure from the supply line directly to the tire press bladder.

A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The built tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tyre is engaged by means of a transfer member (31) comprising a gripping device (30) which retains it at the radially outer surface (2b) so as to maintain said cross-sectional convex profile in a radially outer direction.

A tire vulcanizing system (100) is provided that optimizes the service life of guidance means and preserves the thermal stability of the vulcanization.

A profiling calender includes an intermediate roll, a lower roll, and a pair of intermediate lugs. The intermediate and lower rolls are separated by a distance defining a height of a second profiling nip. The intermediate lugs are situated at ends of the intermediate and lower rolls and include two quarter-circle bearing surfaces that meet at the second profiling nip. Each end of the intermediate roll or each end of the lower roll is equipped with a collar fastened to the roll and positioned between the roll and a quarter-circle bearing surface of a corresponding intermediate lug. The collar enables a radius of the roll to be increased by a height equal to the separation distance in order to improve an appearance of edges of a profiled element produced by the calender.

A calender is provided for profiling a rubber mixture intended for the manufacture of tire casings, the calender having three rotating rolls, the intermediate roll and the lower roll being separated by a second distance in the vertical plane, this second distance defining the height of a second profiling nip, wherein the calender includes a table for separating the profiled mixture that is positioned downstream of the second profiling nip, making it possible to avoid cohesion defects manifested by the appearance of cracks and fissures in the profiled element leaving the calender.

A method for installing a sensor onto an inner surface of a tire is generally disclosed. The method includes robotically deglazing at least a portion of the inner surface of the tire, defining a preconditioned surface. The sensor is robotically selected and a target surface of the sensor is cleaned. An adhesive is applied to at least a portion of the target surface of the sensor. In some embodiments, the adhesive is applied to a portion of the preconditioned surface. The sensor is robotically positioned, wherein the target surface of the sensor abuts the preconditioned surface. A wet-out operation is performed, wherein a predetermined pressure is applied to the sensor for a predetermined period of time to affix the sensor to the preconditioned surface.

A method of recycling a thermosetting polymer object of arbitrary shape includes: operating a fixture device to hold and rotate the thermosetting polymer object; operating a smart and modularized water jet cutter device to shatter the thermosetting polymer object outside-in into a wet polymer powder; drying the wet polymer powder; flattening the partially dried wet polymer powder; completely drying the flattened wet polymer powder; and separating the dried polymer powder into first and second groups, the particle size of the first group dried polymer powder being greater than a predetermined value, the particle size of the second group fried polymer powder being not greater than the predetermined value.