See how professionals can distinguish the quality of a hose crimping machine in three steps?
Everyone in the hydraulic industry knows that the hydraulic fluid of the hose crimping machine is the hydraulic medium used in the hydraulic system using the pressure energy of the liquid. It plays the role of energy transmission, system lubrication, anticorrosion, rust prevention, cooling, etc. The big drawback of the hydraulic fluid of the hose crimping machine is its low cleanliness, which easily causes environmental pollution.
See how professionals can distinguish the quality of a pipe locker in three steps?
To identify the advantages and disadvantages of the hose crimping machine, we can use one-view, two-listen, and three-measurement methods for screening:
1. Look: Observe whether the hydraulic accessories and electrical components selected by the hose crimping machine are brand-name products or produced by regular manufacturers; whether the circuit configuration is regular; whether the petrol station pipeline design is reasonable; whether there is oil leakage at the connection. After passing the visual inspection as above, the next test can be carried out.
2. Listen: Turn on the device after it is powered on, and listen to whether the device is operating normally. If there is abnormal noise, it is often caused by the inconsistency of the coaxiality of the installation of the motor and the oil pump, the other may be caused by the irrational choice of the displacement and diameter of the oil pump, and the quality of the selected motor or oil pump Not well caused.
3. Measurement: finally measure the main parameters of the equipment
3.1 Keep the equipment in the dry running state, and touch each mold block with your hands. There should be no jitter in the hand, otherwise it will be regarded as unqualified product.
3.2 Put the equipment on the mold, withhold a sample joint, and measure the withhold joint with a caliper or micrometer. The roundness and taper should be restrained within 0.1mm, which is considered excellent.
3.3 Mold base hardness and mold hardness are also the key to the normal use of the equipment in the future. Customers can require manufacturers to test the mold base or mold with a benchtop or portable hardness tester. When the hardness of the mold base is lower than Rockwell HRC60, the hardness of the hose will be affected.
3.4 Finally, check the eight-lobe average division of the mold base of the equipment and the evenness of the mold. Good equipment will make special control adjustments for these two items, while some low-quality equipment will not control the above two parameters.
The hydraulic oil is very important when the hose crimping machine is used. It is generally believed that the new oil must be clean, but the survey results often exceed the requirements of the actual use of the system. The general grade is 10-14. The causes of new oil pollution are various. , Including pollution from refining, packaging, transportation to storage, etc. According to China ’s petroleum product performance indicators, if the solid particle pollution content is below 0.005%, there is no mechanical impurity, and when the mechanical impurity in the oil is 0.005, the degree of pollution is equivalent to NAS12 level. In this way, the degree of pollution of the oil from the refinery It may exceed the allowable pollution degree of the system oil. Therefore, the oil supplier is required to provide a certificate of conformity, and the unit must also perform an oil product test. New oil that does not meet the requirements of cleanliness must be carefully filtered and purified before use. The cleanliness of new oil is generally 1-2 grades higher than that required by hydraulic systems. Cleanliness Description of the possible jams caused by components.
