The lubrication system of the fire-rated stainless steel flag door hinge plays a key role in ensuring that it maintains smoothness during long-term use, which is directly related to the normal opening and closing of the door and the user's experience.
First of all, the selection of grease for the lubrication system is crucial. Lubricating grease with good high temperature resistance should be selected, because the fire door hinge may be exposed to high temperature environment when a fire occurs. This grease can maintain appropriate viscosity at room temperature, ensure the lubrication effect between the hinge components, and reduce friction and wear. For example, specially formulated synthetic grease has a stable molecular structure and is not easy to decompose or volatilize at high temperatures. It can continuously provide lubrication for the hinge, making the door easy and smooth to open and close in daily use.
Secondly, the oil filling method and position of the lubrication system need to be carefully designed. The precise oil filling hole position setting can make the grease evenly distributed to the key friction parts of the hinge, such as between the shaft pin and the shaft sleeve, and the joint of the hinge. For example, multiple small and angled oil filling holes are set near the shaft pin. When the oil is filled by pressure, the grease can flow along these holes to the various areas that need lubrication to avoid the situation of local insufficient lubrication.
Furthermore, the loss and replenishment of grease during long-term use should be considered. Design a structure that is convenient for users to add grease by themselves, such as a simple oiling channel with a sealing cover. After the hinge has been used for a period of time, the user can easily open the cover and use a special oiler to add an appropriate amount of grease without disassembling the hinge, saving maintenance costs and time, and ensuring the long-term smoothness of the hinge.
In addition, the lubrication system should also have the function of preventing dust and impurities from entering. Sealing gaskets or dust covers can be used to form a relatively closed space around the active part of the hinge to prevent external dust, sand and other impurities from entering the lubrication area. Because once these impurities are mixed into the grease, they will increase the friction coefficient, accelerate the wear of the hinge parts, affect the smoothness, and may even cause the hinge to jam or damage.
From the perspective of material compatibility, the lubricating grease must be compatible with the metal material of the fire-rated stainless steel flag door hinge. It will not corrode the stainless steel surface, and will not change its own lubrication properties due to chemical reactions. After strict material compatibility testing, it is ensured that the selected grease can protect the metal surface and stably play a lubricating role during long-term contact with stainless steel.
During the design and development of the hinge, the lubrication system was optimized by combining simulation analysis with actual testing. Computer simulation software was used to analyze the stress, wear and grease distribution of the hinge under different lubrication schemes. Then, actual samples were made and tested based on the simulation results. The design parameters of the lubrication system were further adjusted based on the test data. Finally, the lubrication system was used to reliably guarantee the long-term smoothness of the fire-rated stainless steel flag door hinge and meet the needs of various actual application scenarios.
