Different processes in optical lens processing have different cleaning processes, and from the overall process, they can be divided into four processes: cleaning, rinsing, liquid cutting, and drying.
in the processing of optical lenses, different processes h**e different cleaning processes. from the overall process, it can be divided into four steps: cleaning, rinsing, liquid cutting, and drying.
Washing mainly uses organic solvents such as trichloroethylene to achieve the purpose of pre-washing, and then uses detergent to moisten, penetrate and emulsify the surface of the lens to form a comprehensive decontamination effect.
washing mainly uses organic solvents such as trichloroethylene to highly dissolve the upper plate adhesive, wax, mold inhibitors, etc. to achieve the pre washing purpose, and then uses detergents to wet, penetrate, and emulsify the surface of the lens, forming a comprehensive cleaning effect.
Rinsing, the surface of the lens is rinsed with an ultrasonic cleaner so that the detergent that is loose on the surface of the lens after washing is removed from the surface of the lens.
rinsing, using an ultrasonic cleaning machine to rinse the surface of the lens, to remove the detergent that is loose on the surface of the lens after washing.
Dehydration: The rinsed lens surface contains a large amount of water, which enters the dehydrating agent for dehydration, which is mostly an organic solvent and can be fully miscible with water.
dehydration: after rinsing, the surface of the lens contains a large amount of water, which enters the dehydrating agent for dehydration. the dehydrating agent is mostly an organic solvent that can be fully mixed with water.
Drying: The desiccant should be similar to the boiling point of the dehydrator, with good mutual miscibility, and the drying process is roughly as follows
drying: the boiling point of the desiccant should be similar to that of the dehydrating agent, with good mutual solubility. the drying process is roughly as follows:
1) The desiccant vapor condenses into a liquid on the surface of the lens;
1) desiccant vapor condenses into liquid on the surface of the lens;
2) The desiccant liquid and the dehydrating agent on the surface of the lens form an azeotrope;
2) the desiccant liquid and the dehydrating agent on the surface of the lens form an azeotrope;
3) A part of the azeotrope forms a vapor that leaves the lens surface;
3) part of the azeotrope forms vapor and le**es the surface of the lens;
4) A part of the azeotrope flows through the surface of the lens in a liquid state, which has a rinsing effect on the lens. After these processes, the surface of the lens is clean and dry.
4) a portion of the azeotrope flows through the surface of the lens in a liquid state, exerting a flushing effect on the lens. after these processes, the surface of the lens is made clean and dry.
In order to avoid these effects, modern ultrasonic cleaning technology has improved the drying process, using pure water to rinse, and omitting dehydration, the surface of the lens after rinsing is pure water, and then dried by filtered hot air, which can not only dry the lens quickly and effectively, but also avoid the impact of organic solvents on the environment and staff.
due to the use of organic solvents as both dehydrating and drying agents, they h**e a greater or lesser impact on the environment and operators. in order to **oid these effects, modern ultrasonic cleaning technology has improved the drying process by using pure water rinsing instead of dehydration. after rinsing, the surface of the lens is in a pure water state, and then dried by filtered hot air, which can quickly and effectively dry the lens, it can also **oid the impact of organic solvents on the environment and workers.