产品介绍

Manufacturer：Beijing Naijiu Weiye Technology Co., Ltd

1. Introduction:

This testing machine is a new product designed and manufactured in accordance with the requirements of the standard GB/T50082-2009 single-side freeze-thaw method (or salt freezing method). The testing machine is mainly used to determine the concrete anti-freezing performance of concrete specimens in atmospheric environment and in contact with salt, in order to withstand the number of freeze-thaw cycles, or the surface peeling mass, or the ultrasonic relative dynamic elastic modulus.

The refrigeration system of the testing machine is composed of imported fully closed compressor unit and efficient plate heat exchanger. Antifreeze is used as the refrigerant, and the temperature in the test box is cooled by stable and reliable cryogenic pump. The heating adopts PID control, the temperature fluctuation is small in the whole test process, the cooling and heating rate is uniform, the curve is smooth, the interface is clean and intuitive, and it is a special ideal equipment for testing the anti-freezing performance of ordinary concrete in engineering construction.

2. Main parameters:

1). Temperature range: +20℃ ~ -20℃;

2). Temperature control precision:±0.5℃;

3). Specimen size: 150×110×70 (mm) 3 groups (15specimens)

4). Freeze-thaw cycle: 4hours cooling ~ 3hours constant temperature ~ 4hours Heat up ~ 1hour constant temperature

5). The maximum temperature difference between the points in the freeze-thaw box shall not exceed ±1℃ during full load operation

6). Power supply: 3N 380V 50Hz

7). Maximum power: 4Kw

8). Overall size: 1900×800×1200mm