The shoe material heat resistance tester is primarily used to test the high-temperature resistance of shoe sole materials. After reaching the required test temperature, the specimen is pressed against the tester at a fixed pressure for a specified period of time (approximately 60 seconds). The specimen's surface damage, such as softening, melting, or cracking, is observed, and the specimen is then judged to be qualified according to the standard.

Usage Environment:

Note that during testing, some shoes may release harmful fumes, so the device must be placed in a well-ventilated area.

Heat Resistance Tester Structure:

Drill

A cylindrical copper body with a mass of (200 ± 20) g and a square bottom with a side length of (25.5 ± 0.1) mm. It should have a central longitudinal cavity with a diameter of 6.5 mm, extending 4 mm from the outer working surface of the drill's square bottom end to accommodate the temperature measurement device.

Metal heating block

Mass (530 ± 50) g, surrounding the cylindrical portion of the drill bit. The heating block shall contain a resistance heating element and a device capable of controlling the preheating of the drill bit to any desired temperature within a maximum of 400°C (an on/off switch is sufficient).

Measuring device

Measures the internal temperature near the square bottom end of the drill bit.

Drill bit raising and lowering device

Integrated with the heating block, ensures uniform contact between the drill bit surface and the specimen under a uniformly distributed pressure of (20 ± 2) kPa in a horizontal plane.

Self-adjusting platform

Has a suitable diameter for supporting the specimen and uniformly distributes pressure across the specimen.

Hinged support with thermally insulated surface

The drill bit surface rests on the support during heating and can be moved aside to allow the drill bit to be lowered onto the specimen.

Round Mandrel

Diameter (10 ± 1) mm

Specimen Preparation

Cut a specimen with a width of (30 ± 2) mm and a minimum length of 70 mm from the sole, removing the tread where necessary.

Testing can be performed on the waist area of the shoe, which is normally devoid of tread. However, if removing the tread would result in the removal of the wear layer, the specimen must be removed from the waist area.