REPAIR & SUPPLIES - Auto-Mecanique
REPAIR & SUPPLIES - Auto-Mecanique
REPAIR & SUPPLIES - Auto-Mecanique
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Curing Tube – Special, heavy duty tube placed<br />
within the tire while curing.<br />
Cushion Gum – A tacky rubber compound used for<br />
adhesion, undertread repair, and build-up. (Also See<br />
Precured Tread Cushion Gum).<br />
Cut-off Rib – An indentation molded into a retreaded<br />
tire to produce a sharp ending at the edge of the new<br />
retread rubber.<br />
Debagger – A device for inserting and removing<br />
curing tubes.<br />
Delugger – A machine used to cut the lugs from<br />
tires prior to buffing.<br />
Detreader – A machine that delugs and buffs a<br />
used tire.<br />
Die Size – A coded description of the dimensions<br />
of tread rubber.<br />
Extruder – A machine that shapes a rubber<br />
compound, by the process of extruding, into a usable<br />
form (i.e. strip or die size).<br />
Fabric Fatigue – Fabric degradation and resultant<br />
tire cord breakdown due to repeated flexing.<br />
Filler Strip – A free flowing rubber used under the<br />
tread when added thickness is needed.<br />
Flow Stop – An indentation molded into a retreaded<br />
tire to produce a sharp ending at the edge of the<br />
new retread rubber.<br />
Full Capping – Application of new rubber to the<br />
tread area and some distance down the sidewall<br />
of a used tire. Gives the appearance of a new tire.<br />
Groove – Space between two adjacent tread ribs.<br />
Groove Cracking – Cracking which occurs at the<br />
bottom of a tread groove.<br />
Heat Booster – An electric heating unit, which,<br />
when placed between the airbag and the casing of<br />
the tire, provides internal heat and aids in the curing<br />
of the tire.<br />
Kettle Cure – Cure method employing steam and air<br />
for the heat and pressure required in vulcanizing.<br />
Liner – The tubeless tire inner surface used to retain<br />
the inflation media.<br />
Lug Tearing - Rupture of the lug, sometimes<br />
resulting in removal, resulting from violent operation<br />
or mechanical interference.<br />
Mandrel – A curved support inserted in a tire to<br />
prevent the casing from collapsing while building<br />
a repair.<br />
Matrix – Aluminum or steel rings or segments<br />
which form the cavity in which the tire is actually<br />
cured and from which the tread design is formed.<br />
Matrix Skirt – The sidewall flange of the matrix.<br />
In a short skirt matrix the flange extends from the<br />
shoulder to the flow stop and in a long skirt matrix<br />
it extends below the flow stop.<br />
Moisture Blows – Ply separations caused by the<br />
presence of moisture in the carcass which, when<br />
subjected to heat, becomes steam and expands.<br />
Mold – Equipment in which the new tread is cured<br />
to the worn tire. Mold includes the steam chamber,<br />
matrix, and adjusting devices.<br />
Mold Lubricant – Material used as a mold release<br />
to facilitate removal of the tire from the mold after<br />
curing.<br />
Non-Fill – Failure of the tread rubber to properly fill<br />
the matrix during cure, resulting in imperfectly formed<br />
tread elements and rounded lug edges.<br />
Open Splice – A retreaded tire defect caused by<br />
failure of the rubber to knit together properly at the<br />
tread splice during cure.<br />
Optimum Cure – That state of cure at which the<br />
rubber compound exhibits the most satisfactory<br />
physical properties. Usually expressed in minutes<br />
curing time at a specified temperature.<br />
Orbitread Machine – A combined tuber-builder<br />
that applies tread rubber in ribbon form, and in a<br />
spiral configuration.<br />
Overall Diameter (O.D.) – A measurement used to<br />
size a buffed tire. Usually made on an inflated tire<br />
using calipers or a diameter type rule.<br />
Overcure – Vulcanizing longer than necessary.<br />
Can result in the deterioration of certain physical<br />
properties.<br />
Overflow – Spew-out of tread compound at the mold<br />
parting line or at the edge of the matrix skirt which<br />
should be trimmed or buffed off the finished product.<br />
Padding Gum – Heat resistant rubber used under<br />
tread rubber to build up its size for mold fit.<br />
Peaking – A condition, usually in the cushion,<br />
resulting from local material starvation and<br />
excessive flow from adjacent areas.<br />
Ply – A layer of rubber coated parallel cords.<br />
Ply Separation – A parting of rubber compound<br />
between adjacent plies.<br />
Potentiometer – A milivoltmeter calibrated to<br />
sense temperature in a desired range. (Usually direct<br />
reading.)<br />
Precured Tread – Tread which is vulcanized with<br />
the tread configuration molded into it prior to being<br />
placed on the buffed casing.<br />
Precured Tread Cushion Gum – A tacky rubber<br />
compound used to bond the precured tread to the<br />
buffed surface.<br />
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