Specific Maintenance Operation Of The Horizontal Tensile Testing Machine For Electric Hardware

1.distribution line hardware Check the connection wires on the back panel of the controller regularly to see if they are in good contact. If they are loose, tighten them in time.

2.overhead line connectors If the machine is not used for a long time after the test, turn off the controller and computer;

3.overhead line hardware The interfaces on the controller are one by one. Inserting the wrong interface may cause damage to the machine.

. Microcomputer-controlled electronic testing machine Electronic tensile testing machine Tensile testing machine Tensile testing machine. . 1 Introduction to the sale of microcomputer-controlled electronic testing machines. . UH series microcomputer-controlled electronic testing machine is a new type of material testing machine that separates electronic technology from mechanical equipment transmission. This machine is used for static mechanical performance test analysis and research of metal and non-metal materials (including composite materials and new materials) under normal temperature environment, such as tension, compression, bending, shearing, peeling, tearing, and load holding. It can automatically obtain the maximum force, maximum deformation, tensile strength, bending strength, and compression strength ReHReLR

Fourth, overhead power line connectors The interface on the plug-in controller must be turned off when plugging in the controller.

Five, overhead power line hardware According to the use of the machine and the service life of the oil, regularly replace the oil suction filter and filter element, replace the hydraulic oil, and regularly check whether there is any oil leakage at the main engine and oil source. If oil leakage is found, the sealing ring or combined pad should be replaced in time.

The tensile performance test of thermoplastics is greatly affected by temperature. Often, the higher the temperature, the lower the tensile strength, and the larger the elongation, and vice versa. With the gradual increase of temperature, the tensile properties of thermoplastics will gradually change from hard and brittle to sticky and strong, and the tensile strength and tensile elastic modulus will decrease accordingly, while the elongation at break will increase synchronously.

Purchase matters

1. transmission line hardware First, consider the tensile range of the material to be tested

Different tensile ranges determine the different sensors used, and also determine the structure of the tensile machine, but this item has little effect on the price (excluding the gate type). For general soft packaging manufacturers, a tensile range of 100 Newtons is sufficient. Therefore, it is also decided to accept the single-arm type. The corresponding structure to the single-arm type is the gate structure, which is used to relatively large tensile forces, such as one or more. Therefore, soft packaging manufacturers do not need it at all.

2. electrical transmission line hardware fittings The problem of test stroke

According to the performance and requirements of the soft packaging film to be tested, the stroke can be 600-1500mm. For materials with elongation exceeding 1000%, a stroke of 1000 or 1200mm can be selected.

Rubber or elastomer elongation is relatively large, and a large point elongation device is required. At the same time, the fixture design should take into account the characteristics of the rubber and cannot slip. O-ring fixtures and tire professional disassembly fixtures can be added

3. hardware fittings for transmission lines standard configuration issues

Three basic configurations of intelligence: host, microcomputer, and printer. If the microcomputer is powerful, it can print directly. Others can also be equipped with ordinary computers. With a computer, complex data analysis can be performed, such as data editing, partial amplification, adjustable presentation format, and group-based calculation and analysis. If equipped with a computer, the manufacturer should provide a corresponding control system.

Rubber machinery and equipment is machinery and equipment used to manufacture various rubber products such as tires, including three categories: general rubber machinery and equipment, tire machinery and equipment, and other rubber products machinery and equipment. With the continuous development of the rubber industry in China, the quality awareness of the whole people has been continuously improved, and the improvement of rubber quality has become a trend. The emergence of rubber testing machines can effectively detect rubber quality and help realize the measurement of rubber quality.

4. Output results

Test results The output results can be set arbitrarily: 8 items of great force value, elongation, tensile strength, constant force elongation, constant elongation force value, yield strength, elastic modulus, and maximum test force. This can be said to be the comprehensive results output when controlled by a microcomputer. The products sold by some foreign manufacturers can generally output these 8 items. Some domestic manufacturers can output 5-6 items, and some manufacturers can only output three items: great force value, average value, and minimum value. During the test of the tensile testing machine, the microcomputer collects force and deformation in real time, and the software displays the "force-displacement" curve. After the test is completed, it automatically calculates and saves the parameters, and can print out the report form required by the user.

5. In the test items that can be done

Soft packaging requires the tensile machine to be multi-purpose, that is, on the basis of equipping different fixtures, it can do stretching, compression, bending, tearing, shearing, 180-degree peeling, and 90-degree peeling tests. In addition to the above items, some high-end tensile machines on the market can also test the friction coefficient because of their high sensor accuracy (some reach one in three hundred and fifty thousand). Power supply ACVHZ, %, KW to KW;

6. The first configuration of the selling machine equipment

Transmission, there are screw transmission and rack transmission, the former is noble, used for high precision, high test repeatability; the latter is cheap, used for low precision, low test repeatability. The lead screw plays a decisive role in the measurement of tension accuracy. Main features of the microcomputer controlled ring stiffness test machine.

Generally, there are ball screws, trapezoidal lead screws, and general lead screws. Among them, the ball screw has a high degree of accuracy, but its performance depends on the control ability of the computer servo system, and the price of the whole set is also relatively expensive. The use of general lead screws and trapezoidal lead screws can achieve the accuracy required by soft packaging, that is, 0.1-1% accuracy. Transmission, there are gear transmission and chain transmission, the former is expensive and used for high precision; the latter is cheap and used for low precision. Sensors, the first cost lies in life, photoelectric induction is a more advanced technology, generally can be used more than 100,000 times. Indoor relative humidity is not more than %.

7. Test speed

Some of the mechanical tools on the market are 10~500mm/min, and some are 0.001~500mm/min. The former generally uses a common speed regulation system, which is low in cost and affects the accuracy; the latter uses a servo system, which is expensive and has high precision. For soft packaging companies, it is enough to use a servo system with a speed regulation range of 1~500mm/min, which does not affect the accuracy and is within a reasonable range. The main products are digital tensile testing machine, electronic torsion testing machine, tensile strength tester, micro Vickers hardness tester, plastic tensile testing machine, electronic tensile testing machine, etc.

8. Measurement accuracy

Accuracy issues include force measurement accuracy, speed accuracy, deformation accuracy, and displacement accuracy. Those high precision values ​​can offset Reach plus or minus 0.5. But for general manufacturers, reaching 1% accuracy is enough. When draining the oil, just open the oil nozzle at the bottom left of the dynamometer. The service life of the oil depends on the climate of each region. If the oil is found to be deteriorating or dirty and cannot be used, it should be replaced with new oil.

Accuracy alignment

1) Initial alignment of the main body;

2) Accuracy alignment of the tensile testing machine.

After the anchor nut is poured, the anchor nut must not be tightened and the testing machine must not be started before the cement is dry. (The cement drying time is generally no more than 10-15 days) After the cement is completely dry, tighten the foot nut and recheck the installation accuracy of the test machine to see if it is consistent with the alignment accuracy. If not, re-align it. For outdoor lines, if conditions permit, you can also install a special line anti-rat net for the power cable, or use armored cables to lay the lines.

During the use of the tensile test machine, due to the vibration during the test, it is easy to loosen, so the relevant parts of the tensile test machine should be tightened after a period of use. Its quality has been recognized by our laboratory operators.