Low-temperature brittleness tester for evaluating the low-temperature resistance of materials, rubber, or plastics according to standards. JIS C3005, K6261, K6723, K7216, ASTM D746, D2137, ISO 812, 974
The workpiece is clamped and immersed in a cold medium. (Ethanol) Store at the specified temperature in a frozen state for the specified duration. 5 Then, strike the test piece with a speed hammer for one minute. 2 ± 0.2 m/s Then, inspect the fractured test specimens. Subsequently, increase or decrease the medium temperature until the specimen either does not fracture at all or fractures completely. Create a graph to determine the critical temperature and the brittle fracture impact temperature (50%) of the plastic or rubber, in order to estimate the service temperature of the component before fracture occurs.
The image shows the evaluation of the workpiece after testing to create a graph of temperature sensitivity and fracture.
Plot graph TB
After recording the data for each broken specimen at each temperature, remove the test data where all test specimens broke and the data where none of the test specimens broke. Then, draw the best-fitting line through the plotted points, and the brittle fracture temperature will be at the point where the specimen is expected to break. 50% The piece may break. TB
Testing Machines Yasuda It comes with a refrigerator-style cooling system. The tester can set the temperature, and the machine will maintain the temperature in the middle tank through the touchscreen. The lowest test temperature is -70 Degree Celsius or -100 Degrees Celsius, with adjustable temperature accuracy. ± 1 Degrees Celsius. Users can record the number of broken pieces from hammering at various temperatures and create graphs to effectively estimate critical temperature values.
The device has a built-in program on the touch screen that can play empty drum beats. To calibrate the speed of the hammer, a test can be conducted.
The machine comes with a rotating workpiece holder and operates automatically, capable of continuous testing up to 4 times. 20 The workpiece can be configured for testing conditions (test temperature and immersion time) via the touchscreen. The machine will automatically strike the hammer, and the user can record the number of broken workpieces and create graphs to estimate the critical temperature efficiently.
Automated System Tester The machine features an automatic workpiece feeding system operated by a robotic arm. Users input the test conditions into the computer software, enabling continuous testing of the workpieces. 40 Once200 Example)
Hangings: 5 Hangings × 40 Holders (Total 200 Hangings)
Sample: W6.0 ± 0.4 mm, L38 ± 2 mm, T2.0 ± 0.2 mm (Type A)
Striking Edge: Top 1.6 ± 0.1 mm, Distance to Chuck 6.4 ± 0.2 mm, Distance to Striking Point 8.0 ± 0.2 mm
Striking Speed: 2.0 ± 0.2 m/s
Temperature Range: Room Temperature to -70 °C (Refrigerator & Refrigeration Medium)
Refrigerant Medium Quantity: Approximately 15 liters
Software: Windows Compatible
Accessories: Tightening Rod, Torque Driver
Option: Sample Holder (Type B)
Power Source: AC 200 V, 3-Phase, 30 A, 50/60 Hz
Air Source: 0.5 MPa or greater
Dimensions/ Weight (Approximate): W1,160 × D1,030 × H2,150 mm/ 612 kg
Reference Standards
JIS C3005, K6261, K6723, K7216, ASTM D746, D2137, ISO 812, 974
