New Generation Curing Chamber Truck Tire Retreading Equipment
9, curing assembly
Encase the uncured, built tire in an elastic envelope in
preparation for curing. The envelope is a flexible rubber mold.
Under pressure, the envelope can adapt itself to the tire shape, so
there is no internal stress. While hot retreading use rigid mold.
But the used tyres are so different that they can not match with
the rigid mold completely, and produce a pressure. Therefore the
use of envelope is better than rigid mold.
Assembly methods
Traditional method is wrapped envelope, inner rube assembly and
curing rims. Now the bias tires still use above method. With the
development of radial tires, ARC central and dual-packet envelope
methods are more and more efficiently, saving time and energy.
10, vulcanization
A curing chamber applies heat and pressure, and over time, causing
the bonding layer to cure, permanently adhering the new tread to
the prepared casing. If there are any problems in vulcanizing, it
will make the retreading tyres to gap. The tyres for truck need
several hours to vulcanize, need the experienced and responsible
operators. Now the advanced plants adopt the curing chamber auto
controlled by computer, which can complete vulcanize automatically
and exactly.
11, final inspection
A final inspection is performed to ensure the tire in perfect
operating condition depending visual, hands-on inspection. In some
countries and regions, the finished product must be checked in high
gas-pressurized state, but special protective equipment is
necessary to reduce the operation risk. Laser non-destructive
checking equipment has been used in some advanced plants. By
spraying paint, the qualified production can be put into use after
24 hours.
