DYE-300S fully automatic cement pressure testing machine press testing machine wholesale price

Fully automatic cement pressure testing machine press testing machine wholesale price
Product introduction
Fully automatic cement pressure testing machine is widely used to measure the compressive strength of cement, bricks and stones and other building materials. A variety of internal types and different models of presses. In the physical inspection of cement, the hard scouring method was used in the past, and the presses commonly used in cement plant laboratories are now implemented by the soft scouring method, and hydraulic presses are mostly used.
1. Working principle of the fully automatic cement pressure testing machine:
The oil cylinder of the fully automatic cement flexural and compressive testing machine is in a sealed container. When the liquid is subjected to pressure at any point, the pressure The liquid is transmitted to any part of the container, and the intensity of the pressure remains unchanged. The hydraulic pressure using machine is designed based on this principle. The hydraulic pressure using machine is composed of an oil pump, an oil cylinder and a force measuring mechanism. The oil pump, oil cylinder and The force measuring mechanisms are connected by pipelines to form a closed hydraulic system.
2. Technical parameters:
, maximum test force
, test force measurement range
, testing machine accuracy better than %
, applied test force error %
/> , loading speed standard. seconds (adjustable)
, distance between pressure plates
, upper and lower pressure plate sizes
, overall dimensions
, host weight
, Power supply.
3. Identification method of fully automatic cement pressure testing machine:
It should be carried out under room temperature conditions.
Before the load accuracy appraisal, the dynamometer should be placed in the center of the pressure plate of the pressure testing machine, start the machine and slowly add oil, adjust the pressure gauge pointer to zero, if it is a pendulum or spring for force measurement, replace the pendulum or spring. Finally, the pointer movement should not be greater than 1 division.
, identification tool, third-class standard dynamometer, the temperature of the dynamometer should be consistent with the temperature of the test. When identifying the mercury box type dynamometer, the room temperature change should not exceed the temperature during the identification process.
. The dynamometer should not be unloaded during the loading process on the testing machine, and should not be loaded during the unloading process. During the appraisal, the dynamometer should not be larger than one division after each unloading.
. The pressure testing machine usually starts from % of the maximum load of each level, and the inspection should not be less than five points in sequence (the five points should be consistent with %, %, %, %, and % of the maximum load). For example: the five-point sequence for pressure testing machine inspection is:,,,, and.
During inspection, the position of the working piston should be changed, and it should be carried out at approximately % and % of its working stroke.
The relative error of the indication value and the relative change degree value are tested three times continuously in the process with the driven needle, while the relative error of the indication value in the return journey is tested continuously once in the process and return journey without the driven needle.
This machine is a special test equipment used for cement mechanical properties testing and analysis and research. It fully meets the requirements of B "Cement Glue Sand Strength Test Method (Method)" and is widely used in the construction industry and cement production enterprises. .
4. Installation method of fully automatic cement pressure testing machine:
Installation: After unpacking, there is a lifting threaded hole covered with a nylon plug on the body. Open the nylon plug and remove the one that comes with it. Only screw the lifting screws into the threaded holes, and use a lifting machine to lift it to the preset place. (When transporting, pay attention to the protruding parts of the machine) For ease of operation, the machine can be placed on a prefabricated cement foundation that is elevated above the ground (see Figure 2). After the machine is adjusted to a horizontal installation, use clean cotton gauze soaked in kerosene to wipe off the anti-rust agent on the machine's processing surface, then wipe the surface clean and apply a thin layer of mechanical oil.
. Debugging: This debugging content only includes preparation work before operation. For other details, please see the Precautions section.
() Oil filling
Use a screwdriver to unscrew the fixing screws on the rear cover and remove the rear cover. Inject an appropriate amount of hydraulic oil into the hole on the fuel tank cover
Fill the amount to reach the middle of the oil mark. The location is appropriate
After the oil filling is completed, close the rear cover.
Note:
Use B when the ambient temperature is ℃
Use B when the ambient temperature is ℃
() Electrical connection
Plug the random power plug into the corresponding socket. The power supply is.
() Start the oil pump to exhaust
Open the oil return valve () and the oil delivery valve (). Turn on the power of the machine, and the display will be in a random state. Press the start button, start the motor, and the oil pump starts to work. After continuous operation for about one minute, close the oil return valve. At this time, you can find that the lower pressure plate rises slowly. When the lower pressure plate rises to about 10 seconds, close the oil delivery valve and open the oil return valve. The pressure plate is now in a lowered state. Repeat the above steps ~ times to completely eliminate the gas in the system.