High temperature outdoor weathering chamber

摘要

A high temperature outdoor weathering chamber approximating the passenger compartment of an automobile body for testing the effect of natural sunlight on material fibers and colors. The chamber comprises a box having insulated side and end walls and a hinged closure of standard automobile glass. The hinged glass closure provides access through the top of the box to a sample rack that is positioned below the glass closure to support samples for exposure to solar radiation.P PAn aluminum heat shield is positioned below the sample rack. The chamber is constructed and arranged so that air enters an air intake at the bottom of the box, flows through thermostatically controlled heater strips, then beneath the heat shield and out an exhaust outlet at the opposite end of the box above the level of the heat shield. Airflow is solely by convection.