Electro-hydraulic servo universal testing machine has been widely used in the mechanical testing of building materials and metal materials due to its outstanding control function and test accuracy. In large iron and steel enterprises and laboratories of quality inspection units, many test machines are often used for high-load tasks. However, most of the experimenters lack protection and protection experience, so these problems often occur. Manufacturers and users are bothered. Some users and even complained that the equipment is too delicate and not as good as the old hydraulic press. As everyone knows, the electro-hydraulic servo universal testing machine is a high-precision instrument connected with light, machinery, and electricity, not a production equipment. How can it be used as an "old ox"? In fact, although the electro-hydraulic servo universal testing machine is fine but not delicate, you only need to grasp the following ten snacks, and the use will be satisfactory.
1. Cleaning and hygiene: During the test, some dust, such as oxide scale and metal debris, will inevitably occur. If it is not cleaned in time, it will not only cause abrasion and scratches on the appearance of some parts. The serious thing is that if these dust enter the hydraulic system of the electro-hydraulic servo universal testing machine, severe consequences such as blocking valve holes and scratching the appearance of the piston will occur. Therefore, cleaning after each use is very important, and the hygiene of the experimental machine must be adhered to;
2. Complete the corresponding test with a suitable fixture, otherwise the test will not be successful, and the fixture will be damaged: the electro-hydraulic servo universal testing machine is usually only equipped with a fixture for the standard sample, if it is to be a non-standard sample , Such as steel strands, overlapped steel, etc., it is necessary to add suitable fixtures; there are some ultra-hard materials, such as spring steel, etc., must use clips of special information, otherwise the fixture will be damaged;
3.Hydraulic oil: You must always check the tank level and fill it up in time; usually you need to change the oil every 2000 to 4000 hours of use; but the most important thing is that the oil temperature must not exceed 70 ° C, and it must be opened when the oil temperature exceeds 60 ° C. Cooling system
4. Filter: The filter without blocking indicator is usually replaced every 6 months. Regarding the filter with blocking indicator, it must be constantly monitored and must be replaced immediately after the indicator alarm;
5. Accumulators: Some electro-hydraulic servo universal testing machines are equipped with accumulators, which must ensure that the pressure of the accumulator is in a normal task condition. If it is found that the pressure is insufficient, it is necessary to make up for the pressure immediately; only charge the accumulator. Nitrogen
6. Periodic inspection of components: All pressure control valves, flow control valves, pump regulators, and signal devices such as pressure relays, stroke switches, and thermal relays must be checked regularly;
7. Cooler: The scale of the air-cooled cooler should be regularly sorted out; the water-cooled one should be regularly investigated for the cooling of copper pipes.
Break the appearance of a leak;
8. Lubricating oil: Lubricate the screw and transmission parts of the electro-hydraulic servo universal testing machine at regular intervals to avoid dry conflicts; 9. Lock the fasteners of the electro-hydraulic servo universal testing machine at regular intervals: oscillation after the sample is broken Frequently, some fasteners will be loosened, and regular inspections must be performed (about 30 task days of normal use) to avoid large losses due to loose fasteners.
10. Other inspections: Improve your vigilance and pay close attention to details, you can detect the early signs of incidents and avoid major incidents. This is especially true when the equipment starts to operate. Attention should always be paid to external leakage, contamination, component damage, and abnormal noise from pumps, couplings, etc.