
1、 Introduction:
The DKZ-5000 cement electric flexural machine is mainly used for testing the flexural strength of cement soft sand in cement plants, construction units, government institutions, and research units. It can also be used for testing the flexural strength of other non-metallic brittle materials. This testing machine can be used with both single and double levers. When using a single lever, the maximum output is 1000N, and when using a double lever, the maximum output is 5000N. The testing machine scale has a conversion scale specifically for the flexural strength and resistance of cement soft sand. When the maximum output is 1000N, the reading accuracy is 1N and 0.02Mpa, and when the maximum output is 5000N, the reading accuracy is 2N and 0.01Mpa 2. Application: Used for testing the flexural strength of cement soft sandIII. Parameters:
1. Horizontal bar test force ratio (upper beam arm distance ratio) 10:1
2. Parallel bar test force ratio (lower beam arm distance ratio) 50:1
3. Large force value:
Horizontal bar 1000N
Parallel bar 5000N
4. Loading speed:
Single lever (10 ± 1) N/s
Double lever (50 ± 5) N/s
5. Anti bending fixture:
Loading roller and support roller diameter Φ 10mm
Support roller spacing 100mm
Pulling plate spacing 46mm
6. Relative indication error:
± 1%7. Sensitivity:
When using parallel bars, adjust the balance by adding a load of 1g at a horizontal distance of 500mm from the fulcrumLeverage tilt angle>1/50
8. Dimensions: 1075mm × 250mm × 760mm
9. Net weight: approximately 85kg
III. Operation
1. Operating room temperature: 20 ± 2 ℃, relative humidity>50%.
2、 Connect the power and adjust the zero point (adjust the zero balance weight so that the balance weight is in the "0" position and the main lever is horizontal)
3、 Remove debris from the fixture, place the specimen into the anti bending fixture, adjust the fixture to clamp the specimen, and create an elevation angle on the main lever
4、 Start button, read the flexural strength value after the specimen breaks
5、 Press the button on the weight and push the weight back to the "0" position
6、 Keep the instrument clean and dry. There should be no lubricating oil between the blade and the blade support to prevent dust from sticking

