Hot Distortion Tester

A typical hot distortion test involves four steps:

Sample description
Sand Grain description
Testing
Evaluation of test results

From the hot distortion curve, valuable conclusions may be determined. Readings from the curve can be used to provide an indication of the thermal expansion, hot brittleness, burn out rate and thermo-plasticity. The time required to break the specimen is an indication of the binder’s hot strength.

The deformation is measured during the entire test and is shown on a color monitor. The distortion curve can be printed or stored in the internal memory of the machine and data can be downloaded into Microsoft® Excel for further statistical evaluation. The instrument also has the capability to accept user defined process control curves entered from the keyboard.

The test specimen, AFS (American Foundry Society) sand testing standard of 1 x 1/4 x 4-1/2 inches or the metric specimen from the Metric Sand Testing Standard of 115mm x 25mm x 6mm must be prepared by blowing under steady conditions so as to secure dimensional accuracy and compaction grade with no variation.

COMPONENTS INCLUDED:

1. Cabinet Housing

• Flame control pack with Flow Meters
• Frame supporting probes and burner
• Deformation measurement unit
• Data acquisition and display system (IBM PC AT compatible)
• Displacement transducer

2. Printer

Cable with serial connections

• Universal power cord
• PS/2 type keyboard
• CD-Rom printer software disk
• Printer Manual

3. Calibration Kit

• Metallic dummy probe
• 2.5mm thickness calibration gauge

4. Debris Collecting Tray

5. Air Regulator/Filter

• Air Gauge
• Quick disconnect fitting
• Adapter fitting
• Pneumatic tubing

6. Two Flash Drives

• HD-Service (Operating System Back-up)
• HD-Data (export data)

ADDITIONAL DOWNLOADS

Adapting Hot Distortion Curves to Process Control

MANUAL

Get the guidance you need to optimize your sand testing process with ease and confidence.

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