What kind of hydraulic oil is used in the universal material testing machine

The hydraulic testing machine depends on the quality of the machine, the technical experience of the manufacturer and other aspects, and is affected by many factors, especially the configuration is not the same, the size is different, and the quality is much worse. Generally, ** ranges from 10,000 to 100,000, it is recommended to buy a tensile machine or find a professional and reliable old factory, and the quality of large companies is guaranteed! Suzhou Tuobo Machinery & Equipment, a well-known universal testing machine manufacturer in China!

Specializing in more than 10 years of research and development and production of tensile machines, universal material testing machines, and German CADIS cooperation, exquisite technology, excellent quality! And according to customer requirements can customize a variety of non-standard physical property testing equipment, all products are in line with ISO, ASTM, DIN, JIS, GB, CNS and other national standards. It is widely used in wire and cable, hardware electroplating, packaging and printing, auto parts, textile and leather, clothing and footwear, plastic products...

Hello landlord. It is recommended that you use No. 46 anti-wear hydraulic fluid.

The general oil used in the pressure testing machine, No. 46 and No. 68.

The viscosity of No. 46 is lower than that of No. 68, and it is commonly used and used at room temperature.

No. 68 is suitable for pressure testing machines with large tonnage in hot environments.

Hope it helps.

Have fun.

Generally, the universal material testing machine is divided into 30 tons, 60 tons, 100 tons of conventional models, in the control mode is divided into digital display and microcomputer screen display and servo type, the conventional oil film gap seal hydraulic cylinder generally uses 68 anti-wear hydraulic oil, if it is a sealing ring seal 46 can be, because the cylinder has a sealing ring does not need to consider the viscosity and temperature change of the hydraulic oil, the general digital display type of the oil tank is a small cube, the amount of oil is in the range of 350mm hydraulic cylinder stroke 200mm, and the amount of oil is enough for 25L, The microcomputer screen display or electro-hydraulic servo control oil tank is slightly larger than the digital display, generally between 40-50L, and many oil standards outside the oil tank can be seen when the hydraulic oil is injected into the oil mark scale.

1.Plug in the power supply and wait for the system to enter the standby interface.

2.Press"Detect keys", and select the appropriate test type according to the system display.

3.Press the corresponding number button, and then press the confirmation button to enter the universal material testing machine test system; Enter the specimen label in the current dialog box, confirm and save the specimen number; Then enter the selection interface of the variety number, enter the number of specimens according to the system display, confirm and save; Enter the test variety number, select the test material variety, press the confirm button, and the system will display"Test System dialog box"Enter the material variety and number in the current dialog box, press the confirm button, enter the diameter of the specimen (or the area of the specimen) in the dialog box displayed by the system, confirm, and enter the detection interface.

4.Turn on the motor switch, start loading, observe the force value (or displacement, peak) and rate at the same time, and press the range button to switch the force value range.

5.When the specimen is broken, the test is completed and the test data is automatically printed.

The hydraulic universal materials testing machine is an instrument and equipment used to test and evaluate the mechanical properties of various materials and components. The components include the main engine, the hydraulic system, the control system, and the data acquisition and processing system.

1.The main machine part includes the frame power and measurement system, the sensing round type device and the specimen fixture, etc. The disadvantage is that the cost is high, and the maintenance and use are difficult.

2.Hydraulic system: including oil tank, oil pump, valve, etc. Provide the push-pull force or torque required for the test, the disadvantage is that the noise is high, and all the hydraulic oil needs to be replaced when the oil is needed, which seriously pollutes the environment.

3.Control system: including orange guess hydraulic control valve, electronic control system, computer, etc. It is used to control the load of the test sample during the test, and the disadvantages are high system complexity and high hardware and software costs.

4.Data acquisition and processing system: used to collect and process test data. The disadvantage is that it needs to collect a large amount of data for a long time, which requires high computer performance and storage space.

To sum up, it is necessary to fully consider the needs of users and the actual situation to choose the appropriate hydraulic universal material testing machine, and at the same time, it is also very important for equipment maintenance, maintenance and safe operation.

Remove the test bench and change it, and if you can change it, see where you live, and you can leave me a message.

The hydraulic universal testing machine is mainly composed of the main engine part, the hydraulic control part, the detection part, the data acquisition processing and control part, the electrical part, the accessories, etc.

1.The main engine part is composed of oil cylinder, working piston, base, workbench, column, up and down moving measurement, specimen clamping and movable beam, etc., and the main function is to tighten and fix the specimen by the specimen clamping mechanism and load the specimen.

2.Data acquisition, processing and control part: mainly composed of data acquisition, processing, control circuits, computer software and hardware systems, printers, manual control devices, etc., the main function is to complete the control of the whole system, the setting of various parameters, display, test process and test knot.

Recording of results, processing and storage of test data, output of test results and other functions.

3.Hydraulic control part: mainly by the oil tank. It is composed of high-pressure oil pump, oil supply valve, oil return valve, electro-hydraulic proportional valve, globe valve, force measuring cylinder piston, main engine working cylinder, working piston and so on. The main function is to control the tightening of the specimen and the loading of the specimen.

4.Detection part: mainly composed of load sensor (pressure sensor), electronic extensometer, photoelectric encoder, etc., the main function is to detect the test force and deformation of the test object and measure the displacement of the movement.

5.Electrical part: its basic components include all kinds of relays, AC contactors, switch buttons, etc., the main function is the switch of the oil pump motor, the action of the control beam lifting mechanism and various limits, overload protection, etc.

6.Accessories: Mainly composed of tensile and compression test fixtures, flexure test accessories and other special test accessories (various jaws, chucks) and so on. Its basic function is to complete a variety of specific tests by changing the fixtures.

Even drops, this problem is more complicated, depending on the experimental rules of your laboratory.

The first step is to turn on the power of the universal testing machine, and at the same time open the control software connected to the testing machineThe second step is to click on the start of the control software.

In the third step, there are up and down arrows in the control software to control the movement of the loading beam, and use that thing to control the position of the beam to reach the space suitable for you to clamp the sample.

Step 4: Load the specimen and record the output load of the machine without loading the natural specimenStep 5: Set the experimental conditions, such as the type of experiment (tension, compression?). In the sixth step, such as loading speed, preloading eliminates the gap, generally has to go back and forth several times, until the loading curve and the unloading curve coincide, and finally unload to the output load of the machine under the condition of unloaded specimen recorded in the fourth step.

Step 7, click on the arrow to the right, start the experiment, pull to the specimen destruction?

Step 8, end the experiment, click Data Valid, and store the data.

Step 9, click brake in the previous starting position in the software, then close the software, and turn off the power of the testing machineStep 10, please tidy up the laboratory equipment and clean up.

The hydraulic universal testing machine adopts the upper host of the oil cylinder, and the pendulum force measurement and degree plate display the test force and peak value. It is mainly used for tensile, compression and bending tests of metals and non-metals. It is suitable for metallurgy, construction, light industry, aviation, aerospace, materials, colleges and universities, scientific research units and other fields.

The hydraulic universal testing machine is a very popular testing machine with hydraulic loading, convenient operation and accurate accuracy.

For specific parameters, please consult professional universal testing machine manufacturers, Zhongnuo Instrument, Dongsheng Testing Machine and other manufacturers.

The hydraulic pressure testing machine is based on high-pressure oil pressure as the power source, the force is relatively large, generally most of the testing machines above 200KN are hydraulic, of course, there are also electronic all-round, but the highest is higher. The universal material testing machine you are talking about includes electronic universal testing machine, hydraulic universal testing machine, electro-hydraulic servo testing machine, which can do tensile, compression, shear, bending test, etc., equipped with different attachments, you can change the test method. Therefore, back to the question, hydraulic pressure test is a special kind of compressive strength testing equipment, and universal material is a testing machine that integrates a variety of test methods.

Functions and uses:

1.The testing machine adopts a microcomputer control all-digital broadband electro-hydraulic digital valve, drives a precision hydraulic cylinder, and automatically controls the test force, displacement and deformation in various modes to complete the tensile, compression and bending tests of the sample, which meets the requirements of the national standard GB T228-2002 "Tensile Test Method for Metal Materials at Room Temperature" and other standards.

2.The main engine of the testing machine adopts the hydraulic cylinder underneath; The power and transmission device for adjusting the test space are installed at the bottom of the testing machine, and the transmission is stable; The upper and lower jaw seats are fully open structure, automatic hydraulic tightening system, convenient for clamping specimens, and good stability.

3.The Lenovo brand microcomputer is used to complete the setting of test parameters, control, data collection, processing, analysis, storage and display of the test process (test data include: material tensile strength, elastic modulus, elongation, yield strength, specified non-proportional elongation strength, etc.).

Precise and accurate control and measurement.

4.Control part of the technical parameters:

1> Using high-precision amplifier and 24-bit high-precision AD converter, effective internal code: 120000;The force resolution is 1 120000.

2> PID control is used to realize the constant speed control of the load, and the speed range: with the function of holding the load.

3. > adopts PID control to achieve constant speed control of displacement, speed range: with displacement holding function.

4. PID control is used > to achieve constant speed control of strain, and the speed range: with strain holding function.

Main specifications: WAW 1000D

Maximum load 1000kN

Measurement range 2%-100%FS (optional).

The relative error of the indication value is better than 1% of the indication value

The force resolution is 1 120000.

The maximum distance between the stretching jaws is 750mm

The maximum clamping width of the flat specimen is 75mm

Flat specimen clamping thickness 0-40mm

Round specimen clamping diameter 13-60mm

Oil pump motor speed.

The beam moves the motor power up and down.

Main configuration: 1 host.

Control oil source 1 set.

Lenovo computer 1 pc.

1 displacement sensor.

Extensometer 1 pcs.

1 set of control software.

A set of cold-formed fixtures.

2 pairs of round jaws and 1 pair of flat jaws.

1 set of pressure plates.

The hydraulic universal testing machine is to drive the hydraulic master cylinder to test the tensile compression and bending of the specimen, and has a double test space for tension and compression, so as to realize the multi-purpose of one machine. And the test space can be adjusted.

Main parameters of hydraulic universal testing machine:

Taking the 600KN testing machine in the conventional equipment as an example, the common equipment with grade 1 accuracy can meet the requirements of relevant national standards, and several other manufacturers may need a higher level, such as grade accuracy. Other customized products are not examples here due to the different requirements of various industries.

1. Maximum test force: 600kN;

2. Test force measurement range: 2%-100%FS;

3. Test force indication accuracy: 1%;

4. Maximum stretching space: 500mm;

5. Maximum compression space: 400mm;

6. Clamping thickness of flat specimen: 0-15;

7. Clamping diameter of round specimen: 13- 40;

8. The maximum spacing of bending bearings: 400mm;

9. Column spacing: 460mm;

10. Piston displacement indication accuracy: ;

11. Deformation measurement resolution:

12. Deformation measurement accuracy: 1%;

13. Sensor: oil pressure sensor, photoelectric sensor, extensometer;

14. Control mode: electro-hydraulic servo closed-loop control, the control mode can be switched smoothly;

15. Display mode: the computer screen displays the measured values of test force, piston displacement and sample deformation, the screen displays the test curve, and the screen is adjusted and calibrated;

16. Host size: about 730mm 570mm 1845mm;

17. Control cabinet size: 620mm 480mm 1135mm;

18. Weight of the main engine: about 2200kg;

19. Total power: 3kw.

The main configuration of the hydraulic universal testing machine:

1. One main engine of hydraulic universal testing machine.

2. A set of standard oil source for hydraulic universal testing machine.

3. One electro-hydraulic servo all-digital PC controller (including computer).

4. A special PC measurement and control card for the testing machine.

5. A printer.

6. One electro-hydraulic servo valve.

7. A set of electrical control box (integrated with the oil source).

8. A pressure sensor.

9. One extensometer with a gauge distance of 50mm.

10. A set of cylinder piston displacement sensor and connectors.

11. A set of all-digital servo control software.

12. A set of multi-functional test data processing software package (including common test software for tension and compression).

13. A set of pipelines.

14. A set of attachments (spare parts for tension, compression, bending and installation).