ISO 8094:2013 pdf free
ISO 8094:2013 pdf free.Steel cord conveyor belts一Adhesion strength test of the cover to the core layer
ISO 8094 specifies a test method for determining the adhesion strength of the cover to the core layer.It applies exclusively to steel cord conveyor belts.
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 36, Rubber; vulcanized or thermoplastic一Determination of adhesion to textile fabrics
ISO 6133, Rubber and plastics一Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength
ISO 18573, Conveyor belts一Test atmospheres and conditioning periods
Measurement of the force required to separate the covers from the core layer by stripping.
Tensile test machine with jaws, in accordance with the equipment described in ISO 36.
Take six specimens with the following dimensions:
a) belts without weft, with or without textile reinforcement:
1) length (in the longitudinal direction of the belt): 150 mm min;
2) width: 25 mm min. and containing at least two steel cords;
3) thickness: full thickness of the belt;
b) belts with metallic weft:
1) length (in the direction of the cord layer): 150 mm min,;
2) width: 25 mm±0,5 mm;
3) thickness: full thickness of the belt.
Cut the specimens parallel to the axis of the belt and at least 50 mm from the belt edge.
Using a knife, cut the cover rubber on either side of the specimen along the upper and lower edges of the cords along a length sufficient for a safe grip in the jaws of the test machine.
Carry out the test in accordance with ISO 36, at least five days after manufacture of the belt.
Unless otherwise specified, and so indicated in the test report, carry out the test at 23 °C±2 °C and 50 %±5 % relative humidity in accordance with ISO 18573, Atmosphere B.
From the first three specimens, fix the top cover in one jaw of the test machine and the core layer including the cords (without the bottom cover) in the other jaw.
Start the test machine, with the gap widening speed of the jaws maintained constant at 100 mm/min土10 mm/min.
From the remaining three specimens, fix the bottom cover in one jaw and the core layer, including the cords in the other jaw, and repeat the test in accordance with 6.3 and 6.4.
If the adhesion strength of the cover to the core layer is greater than the tear strength of the core layer, the maximum force obtained is recorded together with the mode of failure.ISO 8094 pdf download.
