1.Fluorine rubber skeleton oil seal heat resistance Fluorine rubber (FPM) has good heat resistance, can be long-term work at 200-250 degrees Celsius, can also be short-term work at 300 degrees. The tensile strength and strength of fluorine adhesive decreased significantly with the increase of temperature. The transformation characteristics of tensile strength and strength are as follows: below 150 degrees, it decreases rapidly with the increase of temperature; In the middle of 150-260 degrees, with the temperature rising, the downward trend is slow.
2.Fluorine rubber skeleton oil seal corrosion resistance Fluorine rubber (FPM) has extraordinary corrosion resistance. It has excellent reliability against organic chemical liquids, different light fuel oils and greases, and excellent corrosion resistance against most citric acid, nitrogen oxides, benzene and xylene.
3.Fluorine rubber skeleton oil seal reducing permanent deformation performance Fluorine rubber (FKM) is used for sealing at high temperature, reducing deformation performance is its important. Weitong type fluorine adhesive is therefore widely used, which is inseparable from the improvement of its reduction deformation. In the 1960s and 1970s, a company in the United States focused on improving the resistance of fluorine rubber to shrinking deformation, and obtained obvious practical results.
4.Fluorine rubber skeleton oil seal cold resistance Fluorine rubber (FKM) can maintain the ductility limit temperature of -15 to -20 degrees, with the reduction of temperature, its tensile strength increases, and it looks tough at ultra-low temperatures. When the thickness is 2MM, the ductility temperature is -30 degrees; When the thickness is 1.87MM, the temperature is -45 degrees; When the thickness is 0.63MM, the temperature is -53 degrees; At 0.25, the temperature is -69 degrees. General fluorine adhesive application temperature can be slightly lower ductility temperature.
5. Fluorine rubber skeleton oil seal resistance to atmospheric embrittlement and resistance to active oxygen VITONA Of course, after ten years of storage performance is still relatively satisfactory. In the air with an ozone concentration of 0.01%, there was no significant cracking after 45 days.
Post time: Dec-14-2023
