Cold Retread Pneumatic Buffing Machine For Tire Recapping Machine
Retread process
1, cleanness and dry of casing
Before retreading, outer and inner surface should be cleaned for
good adhesion strength. Drying is also essential because the water
in casing would affect the retreading quality.
2, tyre inspection
Not all the used tyres can be retreaded, different standard for
different conditions. Some defects can be found directly by the
experienced operator, but some inner ones can only depend on the
inspection of equipment and devices.
3, buffing
Obtained tire surface with a certain profile and adhesion after
buffing. It should be stressed that this is a crucial process,
because unqualified tire size, roughness, or roundness would affect
the quality of retread tires.
4, skiving
Buffer can not grind the pattern grooves and the concave parts
caused by using, so can only use hand-held pneumatic or power tools
with special grinding wheel. In addition, the uncertain damage can
be confirmed exactly and remarked.
5, cement
In order to prevent the grinding tread surface to be oxidized in
the long-time exposure, and to provide operating viscosity to next
adhesion step, the operator paint a thin cement layer on the
polished surface. Spray cement has been eliminated in some advanced
plant, because the wet cement would affect the adhesive property
and has flammable risk.
6, repairs
Cuts repair, fill, paste patch liner depend upon complete tools in
this station. By scientific design, high strength, light weight,
resistance to flex, the patch liner can be prefabricated into a
variety of models. Right models with correct operation lead to
reliable quality. And it should be noted that all the work is
operated manually, so need the operator have proficient skills and
responsibility.
