Cold Tire Retread Tyre Casing Buffing Machine Used Tyre Retreading
Machine
section name: casing tread rubber
Conformable tire: The sidewall rubber still very good but tread rubber was worn down
and damage the steel belt.
Section process: rubber cutting machine remove the tread rubber with steel belt,
named casing, and cover a new casing, at last put the tire on
curing chamber heating and vulcanizing.
First—Select tyres
Selected the suitable tyres from the waste tyres for retreading.
Manual work
Using tyre checking machine
Second—Buffing tyres
After selected, using tyre buffing machine grind the tyres, buffing
to the distance from rubber line only 3-2mm, it can automatic
control the distance.
Please note there is no stones and other sundry on the tyre.
Third—Repair tyre crown(the tyre tread after buffing)
Repair the tyre on the tyre repair stand, using repair tools clean
the holes, rubdown the thread residue of TBR, processing the steel
wire of wire bead.
Fourth—Tyre cavity repair
Using tyre checking machine, expend the tyre cavity, repair the
holes, different sizes holes use different strengthening layers.
Fifth—Brush coating
After repairing, brush the glue (cushion rubber and 120#gasoline
mixer), dry it in the air about 30mins.
Sixth—Extrude rubber strips
The tyres was sharped in the high speed way, after the above
repairing, there will be a few mm sag, which need to fill in some
rubber strip. If not, the empty parts will foam concrete pavement
when the tyre in the high speed running.
Seventh—Stick the middle rubber
After extruded the rubber strips, stick the middle rubber, to
ensure curing the buffing tread and rubber tread rubber.
Eighth—Stick tyre tread
When finished the above process, stick one layer tread rubber, it
is the main material for tyre retreading. Select the best quality
tread rubber, make a high quality renew tyre.
Ninth—Install the envelop
Using envelop spreader machine install the envelops. It will create
a good physical condition for tyre curing, inflate the envelops to
keep a balance pressure.
Tenth—Install inner tube, flap and rim
The rim can support the inner tube, when the chamber pressure and
inner tube extrusion pressure.
Eleventh—Put tyres on the multi-function tyre frame
Put the packed tyres on the frame, then put them into curing
chamber.
Twelfth—Curing
Mould curing machine with half-part mold, segment mold or cone mold
Thirteenth—Final inspection
After vulcanizing the tyres, using the high pressure inspection
machine test the tyres strictly.
