Heat Build-up Analyser

The Coesfeld Heat Build-Up Analyser is the ideal instrument for calibrating and validating dissipative and exothermic material behavior for use in steady state and transient heat build up simulations.  Also, it is the ideal rubber compound development lab test for applications exhibiting significant temperature rise and / or thermal runaway or “blowout”.  The HBU Analyser utilizes a cylindrical beam specimen deformed in bending to apply strain.  The specimen rotates, producing dynamic tension/compression strain cycles.  The effects of viscoelastic heating are observed through the temperature rise at two locations: the test specimen centerline, and the external surface.

Exothermic thermal runaway conditions can also be observed when rapid oxidation and/or volatilization produces internal pressurization and specimen “blow out”.  The animation below, recorded with an infrared camera, shows the final moments of a test on the HBU Analyser.  The animation clearly shows the typical elevated temperatures, internal pressure rise and ultimate thermal runaway failure.

Benefits

• Leverage the latest thermal modeling features of modern durability simulation codes
• Accurately measure viscoelastic and exothermic components of self heating behavior
• Reliably discriminate between rubber compounds with sensitive, repeatable control and measurement
• Operate efficiently with intuitive user interface, automated control, data acquisition and reporting
• Get ahead with support from the world’s leading experts in elastomer durability and in testing instrumentation for the rubber industry

Key Features:

• Maximum bending angle: 80°
• Maximum rotation speed: 25 Hz (1500 rpm)
• Approximate strain range at maximum bending angle: -10% to 10%
• Specimen dimensions: Length = 100 mm, Diameter = 20 mm
• Thermocouple for internal temperature measurement
• Infrared sensor for external temperature measurement