Electro-hydraulic servo universal testing machine has been widely used in mechanical testing of building materials and metal materials because of its outstanding control function and test precision. In large iron and steel enterprises and laboratories of quality inspection units, test machines are often used for high-load tasks. Most of the experimenters lack protection and protection experience, so these problems often arise. Manufacturers and users are very annoyed. Some users even complain that the equipment is too delicate, not as old as the hydraulic press. As everyone knows, the electro-hydraulic servo universal testing machine is a high-precision instrument with optical, mechanical and electrical connections, not a production equipment, how can it be used as the "old cattle"? In fact, although the electro-hydraulic servo universal testing machine is fine but not delicate, just grasp the following ten points, the use will be satisfactory.

1. Sweeping and hygiene: some dust will inevitably occur in the test process, such as oxide scale, metal debris and so on. If not cleaned in time, it will not only abrasion and scratch on the surface of some parts, but also serious if these dust enters the hydraulic system of electro-hydraulic servo universal testing machine, it will occur resistance. Plug valve hole, scratch piston appearance and so on very stern result, so after each use sweeps extremely vital, must insist on the laboratory machine hygiene;

2. Complete the corresponding test with suitable fixture, otherwise not only the test will not be very successful, but also will damage the fixture: electro-hydraulic servo universal testing machine is generally equipped with clamps to do standard samples, if you want to do non-standard samples, such as steel strand, lapping steel fine, etc., it is necessary to increase the matching fixture; Super-hardness materials, such as spring steel, must use special clips, or it will damage the fixture;

3. Hydraulic oil: must always check the tank level and timely refueling; ordinary to use every 2000 to 4000 hours to change oil; but the most important thing is that the oil temperature must not exceed 70, in the oil temperature exceeding 60, must open the cooling system;

4, filter: about the filter without a blocking indicator, it is usually replaced every 6 months. With regard to filters with blocking indicators, they must be constantly monitored, and when indicators are alarms, they must be replaced immediately.

5. Accumulator: Some electro-hydraulic servo universal testing machines are equipped with accumulator, which must ensure that the pressure of accumulator is in normal working condition. If the pressure is not enough, the pressure should be compensated immediately.

6. Components regular patrol inspection: all pressure control valves, flow control valves, pump regulators and pressure relays, stroke switches, thermal relays and other signal equipment, should be checked regularly;

7. Cooler: Choose air-cooled cooler to regularly clean up the scale; Choose water-cooled to regularly investigate whether there is no cooling copper pipe

A breach of water;

8. Lubricating oil: electro-hydraulic servo universal testing machine screw and transmission parts to regularly coat lubricant to avoid dry conflict; 9. electro-hydraulic servo universal testing machine fasteners to regularly lock: sample tension after the oscillation often makes some fasteners loosen, must be regularly patrol inspection (normal operation of 30 task days left) Right) to avoid large loss due to loosening of fasteners.

10. Other checks: Be alert to progress and pay close attention to details, you can discover the foreboding of events early, to avoid causing major incidents. This is especially true when equipment begins to operate. Attention should always be paid to leakage, pollutants, damage to components and abnormal noise from pumps, couplings, etc.