TYRE CURING BLADDER

Curing Bladder Production Processing Technology : Currently, there are two processing technologies for curing bladder production, one is molded type curing bladder and the other is injection type curing bladder.1. Characteristics of molded type and injection type curing bladder : Production Processing Technology Characteristics Molded Type Curing Bladder The semi-finished curing bladder are placed in the seam between the upper and lower molds.,when the mold is installed, the upper core mold rises and the lower core mold drops.                          The upper and lower core molds run rubber material seriously, so the quality of semi-finished curing bladder cannot be controlled, which is easy to cause the phenomenon of non-compactness and uneven thickness of rubber materials. Injection Type Curing Bladder Through a serious of automatic control steps of the machine , the injection type curing bladder has advantage of compactness and even thickness of rubber materials. 2. The advantages of injection type curing bladder:The heat transfer of injection-type curing bladder is faster than that of molede type curing bladder, which can shorten the curing time of tire production, so as to improve production capacity and reduce energy consumption.At the same time, the injection type curing bladder has better aging resistance and long service life.

How to improve the service life of curing bladder： Tire curing bladder is used for tire vulcanization, whose life has been concerned by the tire manufacturers , not only with the tire quality and tire production costs but also the tire production efficiency are closely related.From the beginnig of the curing bladder replacement, to the replacement of the first stove production, its consumption of time at least 30 minutes.In this paper, the usage management of curing bladder ( storage conditions, operation sepcifications, pre-treatment before use, deoxygenation of vulcanized media ), as well as the selection of curing bladder specifications, curing bladder surface patterns and other measures are taken to describe how to improve the service life of curing bladder.1. Choose the curing bladder with injection processing technology2. Choose the right size of curing bladder3. Curing bladder surface pattern selection4. Strengthen curing bladder use management5. Standardize curing bladder replacement operation

General Information： Curing is the process of applying pressure to the green tire in a mold in order to give it its final shape, and applying heat energy to stimulate the chemical reaction between the rubber compounds and other materials.  In this process the green tire is automatically transferred onto the lower mold bead seat, a curing bladder is inserted into the green tire, and the mold closes while the bladder inflates. As the mold closes and is locked the bladder pressure increases so as to make the green tire flow into the mold, taking on the tread pattern and sidewall lettering engraved into the mold. The curing bladder is filled with a recirculating heat transfer medium, such as steam, hot water, or inert gas.At the end of cure the pressure is bled down, the mold opened, and the tire stripped out of the mold.