The low-temperature brittleness testing machine is used to detect the brittleness characteristics of vulcanized rubber and plastic materials in low-temperature environments. Soak the sample fixed on the testing device in a low-temperature medium for 5 minutes, then use an impact head to impact the sample at a linear velocity of 2 ± 0.2m/s, and finally check whether there are cracks, fissures, small holes, and overall damage at the lowest temperature of the sample. Adopting a two-stage compressor for rapid cooling and refrigeration, the minimum temperature can reach -70 ° C (if the temperature needs to be lower than -70 ° C, liquid nitrogen can be connected to the backup heat exchanger interface, and the minimum temperature can reach -120 ° C). The temperature controllability is high, and the liquid heat transfer medium in the low-temperature tank can use a stirring motor to achieve better temperature uniformity. Each test can test 4 sets of samples, and the automatic rotating positioning fixture performs impact testing on each set of samples to check the lowest temperature at which brittle failure occurs.

ASTM-D746: Type A, ASTM-D746: Type B, GB/T15256, GB/T5470 (Type B), ISO 812, ISO 974, JIS C3005, JIS K 6723, JIS K7216A, JIS K7216 (Type B), ASTM D2137, etc

Adopting a large-sized color LCD touch screen integrated control, simple operation, integrated control, automatic timing, and real-time temperature display. Program automatic control.
Adopting high-precision temperature control module and PID intelligent temperature control.
The box has a test medium discharge port and is equipped with a manual valve. The experimental medium is easy to add and remove.
The temperature uniform mixing system is equipped with an electric motor and mixing fan to ensure temperature uniformity.
Ethanol (provided by the customer) is used as the thermal conductive medium, with good temperature uniformity.
Adopting French Taikang two-stage fully enclosed compressor, air-cooled. Advanced multi-channel, environmentally friendly and energy-saving (low-noise) mechanical compression refrigeration system. R404A and R23 are environmentally friendly refrigerants that can quickly cool down to -70 ℃.
security system
Overcurrent protection
Temperature over temperature protection
High and low voltage protection

Test temperature: normal temperature~-70 ℃
Cooling method: Double stage fully enclosed compressor refrigeration
Cooling medium: Alcohol (to be provided by the customer)
Control mode: PLC programmable controller+HMI color LCD touch screen control
Temperature resolution: 0.1 ℃
Inner box material: SUS304 stainless steel
Impact head radius: R1.6 ± 0.1mm
Impact velocity: 2.0 ± 0.2/s
Temperature fluctuation: ± 0.5 ℃
Inner box size (W * D * H) (approximately): 255mm × 600mm × 160mm
Machine size (W * D * H) (approximately): 915mm × 905mm × 1530mm
Weight: Approximately 450kg
Power supply: 1 ∧, AC220V, 50/60HZ

Rubber, plastic.