High Temperature Air Permeability Tester

Description

The high-temperature permeability tester is primarily used to test the permeability of investment casting molds.  Considering the large size and weight of typical investment casting alloy samples, the instrument utilizes a robust structure to simultaneously heat and test four samples.  Custom-designed gas pipes ensure that the large-mass samples do not bend under high temperatures, thus preventing any impact on the test results.

The high-temperature permeability tester features an intelligent temperature control module for precise temperature measurement and control, PLC control for movement, and software for data acquisition and processing. A digital gas flow meter provides real-time monitoring and automatic data recording. It boasts advantages such as fast data acquisition, strong anti-interference capabilities, and low failure rate.

The high-temperature permeability tester meets testing standards such as HB5352.4-2004 (Investment Casting Mold Shell Performance Test Methods, Part 4: Permeability Measurement) and JB/T4153 (High-Temperature Permeability Test Method for Investment Casting Shells).

The testing principle of the high-temperature permeability tester is as follows: The sample is heated to the test temperature and maintained at the specified temperature distribution.  Simultaneously, gas is passed through the sample at a constant pressure, and the gas flow rate data is recorded in real time, generating a "flow rate-time-temperature" curve.

Specification