Replacement Period of Filter Core of Quenched Oil Filter
2019/8/1??????view:
Characteristic of quenching oil: The cooling capacity of oil is insufficient in the range of 550-650 C. The average cooling rate is only 60-100 C/s. But in the range of 200-300 C, slow cooling rate is very suitable for quenching. Oil used for quenching alloy steel and small section carbon steel can not only obtain satisfactory hardenability and hardenability, but also prevent cracking and reduce deformation. In order to meet the technological requirements of heat treatment, quenching oil should have the following characteristics: 1) higher flash point to reduce the risk of fire; 2) lower viscosity to reduce the loss caused by oil attachment to the workpiece; 3) not easy to oxidize, stable performance, in order to slow down aging and prolong service life.
Good cooling performance
Cooling performance is an important performance of quenching medium, which directly affects the quality of quenched parts. Good cooling performance can ensure that quenched parts have a certain degree of hardness and qualified metallographic structure, and can prevent parts from deformation and cracking.
When high flash point and ignition point are quenched, the temperature of oil will rise instantaneously. If the flash point and ignition point of oil are low, ignition may occur. Therefore, quenching oil should have high flash point and ignition point. Usually the flash point should be 60 - 80 C higher than the oil temperature used.
Good thermal oxidation stability
Quenching oil has been used for a long time under the harsh conditions of high temperature and continuous operation. It is required that the oil has good antioxidant, thermal decomposition and aging resistance to ensure the cooling performance and service life of the oil.
low viscosity
The viscosity of oil is related to its adhesion, carrying loss and cooling performance. On the premise of guaranteeing the cooling performance and flash point of oil products, the viscosity of oil products should be as small as possible, which can not only reduce the carrying loss, but also facilitate the cleaning of workpieces.
Low moisture content
Excess moisture in oil products will affect the heat treatment quality of parts, resulting in soft spots, quenching or deformation of parts, and may also cause oil splashing and accidents. Therefore, it is generally stipulated that the water content in quenching oil should not exceed 0.05%.
The function of quenching oil filter is introduced: using vacuum negative pressure principle, infrared carbon fiber heating, Germany's latest three-dimensional flash technology, film evaporation technology, and multi-stage precision filtration, it can quickly and effectively remove water, gas, magazines and volatiles (such as alcohol, gasoline, ammonia, etc.). Recovery oil viscosity, flash point and service performance. Rapid recovery of oil properties to meet oil standards. The lubricating oil treated by lubricating oil filter has low emulsification value, little water content and high impurity precision, which can be reused in high precision hydraulic lubrication equipment at home and abroad. It is suitable for the purification and regeneration of various lubricants in petroleum, chemical, mining, metallurgy, power, transportation, machinery manufacturing, railway and other industries.
Replacement period of filter element of quenched oil filter:
Quenched oil stainless steel filter element has good filtration performance, and can play a uniform surface filtration performance with 2-200 micron filtration particle size. The main filter material is made of multi-layer stainless steel sintered mesh with filtering accuracy of 0.5-200 micron, and its shape and size can be processed according to user's requirements.
Characteristics of stainless steel filter element:
1. Good filtration performance and 2-200 micron filtration particle size can play a uniform surface filtration performance.
2. Good corrosion resistance, heat resistance, pressure resistance and wear resistance.
3. Stainless steel filter element with uniform pore and accurate filtering accuracy;
4. The flow rate per unit area of stainless steel filter element is large.
Stainless steel filter element is suitable for low temperature and high temperature environment; it can be reused after cleaning, and no replacement is required.
Applications: Pipeline filtration in petrochemical industry and oil field; Fuel filtration in refueling equipment and engineering machinery; Equipment filtration in water treatment industry; Pharmaceutical and food processing fields; Filtration area of 1.5-2.5pa with rated flow rate of 80-200l/min (m2) 0.01-0.20 (micron); Stainless steel punching in stainless steel braided mesh of filter material of 2-200 micron The mesh is used for dewatering in the front stage of heavy oil combustion system and for filtering chemical liquids with a precision of 100 um. The material of the filter element is stainless steel circular microporous mesh.
It is suitable for pretreatment and post-treatment systems in electronic, petroleum, chemical, pharmaceutical, food and other industrial sectors. Further purification of water containing lower suspended impurities (less than 2-5 mg/L) was carried out.
The replacement cycle of the filter element of quenched oil filter is usually monthly when the equipment is being repaired, you can check whether there is pressure on the pressure gauge on the equipment first. If there is pressure, it indicates that the filter element is blocked by impurities and needs to be replaced. If there is no pressure, you can ignore it first. Refer to the above indicators the next time you repair the equipment. Net Filter Equipment Manufacturing Co., Ltd. in the replacement cycle recommends that the filter element be replaced once a quarter. Because long filtration time will cause impurities to accumulate on the surface of the filter element, it needs to be replaced and cleaned up.
- Pre：Start-up procedure of gear oil 2019/8/1
- Next：Common Faults of Gear Oil Pump 2019/8/1