Evaluation device and method for monitoring a vulcanization process of a vehicle tire in a tire heating press, wherein at least one sensor value and/or at least one control variable of the tire heating press is acquired, where the sensor value and/or the control variable is fed to an evaluation device that includes an ML model, and the evaluation device and/or the ML model outputs a warning notification when an evaluation of the at least one sensor value and/or the at least one control variable by the evaluation device reveals that there is a defect or an anomaly with the tire heating press or at least part of the tire heating press, or that there will be a defect or an anomaly with the tire heating press or at least part of the tire heating press in the foreseeable future.

A method is described for vulcanizing a green tire using an organopolysiloxane-based mold release agent lubricant composition. Also described, is an organopolysiloxane-based mold release agent lubricant composition.

Provided are a vulcanization device for a pneumatic tire and a method for vulcanizing a pneumatic tire. A pressurizing medium having a relatively low pressure is supplied through a pressurizing medium low-pressurization/supply line into a vulcanization bladder having a tube-like shape inserted into a green tire in a vulcanization mold to inflate the vulcanization bladder. Thereafter, a heating medium is supplied through a heating medium supply line into the vulcanization bladder (2). Then, a pressurizing medium having a relatively high pressure is supplied through a pressurizing medium supply line into the vulcanization bladder to increase internal pressure of the vulcanization bladder while the media in the vulcanization bladder are circulated through a circulation line extending outside the vulcanization bladder, thereby vulcanizing the green tire.

Provided is a pneumatic tire vulcanizing method which includes the steps of setting a green tire in a mold, inserting a bladder inside the green tire, and expanding the bladder to press the bladder to an outer side in the tire radial direction and perform vulcanization molding. The bladder is expanded with a rigidity reinforcement ring interposed between an inner circumferential surface of a region of the green tire corresponding to a tread portion and an outer circumferential surface of a region of the bladder corresponding to the tread portion.

Disclosed herein are automated systems and methods utilizing a plurality of specialized RFID tags incorporated within various tire manufacturing components (e.g., mold segments, mold container, bladder plates, tire presses, and extrusion dies) that are able to readily track tire manufacture and identify defect source(s) while concurrently being configured to the harsh processes and temperatures of tire manufacture.

Disclosed herein are automated systems and methods utilizing a plurality of specialized RFID tags incorporated within various tire manufacturing components (e.g., mold segments, mold container, bladder plates, tire presses, and extrusion dies) that are able to readily track tire manufacture and identify defect source(s) while concurrently being configured to the harsh processes and temperatures of tire manufacture.

Disclosed herein are automated systems and methods utilizing a plurality of specialized RFID tags incorporated within various tire manufacturing components (e.g., mold segments, mold container, bladder plates, tire presses, and extrusion dies) that are able to readily track tire manufacture and identify defect source(s) while concurrently being configured to the harsh processes and temperatures of tire manufacture.

Disclosed herein are automated systems and methods utilizing a plurality of specialized RFID tags incorporated within various tire manufacturing components (e.g., mold segments, mold container, bladder plates, tire presses, and extrusion dies) that are able to readily track tire manufacture and identify defect source(s) while concurrently being configured to the harsh processes and temperatures of tire manufacture.

A release agent composition for tire-molding contains: (A) 100 parts by mass of an organopolysiloxane containing at least two hydroxy groups bonded to a silicon atom in one molecule and having a viscosity at 25° C. of 10,000 mPa.Math.s or higher; (B) 10 to 100 parts by mass of an organohydrogenpolysiloxane containing at least two hydrogen atoms bonded to a silicon atom in one molecule relative to 100 parts by mass of the component (A); (C) 10 to 10,000 parts by mass of water relative to 100 parts by mass of the component (A); and (D) 2 to 70 parts by mass of a polyvinyl alcohol relative to 100 parts by mass of the component (A). The release agent composition for tire-molding is excellent in release. Molding and vulcanizing tires repeatedly in succession a larger number of times without applying a release agent after once applying a release agent is realized.

A method for detecting a puncture in a tire curing bladder during a curing process of heating and pressurizing an uncured tire set in a curing mold from an inside with the bladder, the curing process has the steps of heating the tire with the bladder having a first internal pressure applied by feed of a first curing medium, and pressurizing the tire with the bladder having a second internal pressure applied by feed of a second curing medium after the heating step. The second internal pressure is higher than the first internal pressure. In the pressurizing step, the bladder having the second internal pressure is depressurized at least temporarily, and a sensor detects leakage of the first curing medium to detect a puncture.