Storage method of high pressure excavator seal
High-pressure excavator seals and supports are often stored in spare parts for extended periods of time. The physical properties of most rubber materials change during storage and can no longer be used, such as: excessive hardness, softness, cracks and cracks or other forms of surface aging. These changes are the result of a combination of specific factors or factors such as deformation, oxygen, ozone, light, heat, humidity or oils and solvents. If some simple measures are taken, the shelf life of these products can be greatly extended. The main points of storage, cleaning and maintenance of elastomeric sealing elements have been established in international standards. Recommended storage life for elastomers of different material grades in the standard.
In order to maintain the optimum physical and chemical properties of the components, the following rules should be observed:
Heat: The ideal storage temperature is between +5 ° C and +25 ° C. Avoid direct contact with heat sources such as boilers, radiators, and direct sunlight. If the temperature is lower than +5 °C, the excavator seal may be stiff. Care should be taken when handling. The temperature of the excavator seal should be raised to about 25 °C before use.
Oxygen and Ozone: If possible, the elastomer should be packaged and stored in a sealed container, free from air. Since ozone can damage the elastomer, equipment that may generate ozone should not be placed in the space where the elastomer is stored, such as ultraviolet lamps, high voltage equipment, electric motors, spark sources or static discharges. Combustion gases and organic vapors also produce ozone under photochemical action, so these gases are not available in the storage chamber.
Humidity: The relative humidity of the storage chamber should be less than 70%. Avoid being too moist or too dry.
Light: Seals like rubber excavators should be stored away from light, especially in sunlight or under artificial light containing UV components. The parts are individually packaged in UV-resistant packaging. It is recommended to cover the windows of the storage room with red or orange curtains.
Radiation: In the case of electronic radiation, special protection should be applied to parts to avoid damage to components.
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Application:
It is mainly used in many different constructions, such as oil extraction by layer, water injection, water exploration, plugging, squeezing, acidification, fracturing and so on.
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Usage: packing of target intervals, such as blocking off the high pressure water formation, preventing gas and watering coning, producing layer separating during oil extraction, thus realizing selectable layer mining; applied in the staged fracturing operation with the staged fracturing tools;used as the packer on the top of a tail pipe for packing the annuls inside an annular tube; solving the problem of the gas and water channeling in the micro-annuls after the well cementing operation, thus improving the cementing quality.
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