The Function Of Anti-hanging Coating On Tuning Fork Liquid Level Switch

The tuning fork level switch plays a crucial role in automated production, especially in the chemical, pharmaceutical, and petroleum industries. In practical applications, the difficulty of measurement varies due to differences in working conditions and material characteristics across different industries. For example, the chlor alkali industry extensively uses alcohol-based raw materials, which have good fluidity and low viscosity. A tuning fork-level switch is an ideal choice. However, some chemical raw materials in the washing industry have high viscosity and weak flowability, which can easily adhere to the fork body of the tuning fork level switch after long-term use.

The fork body of the tuning fork liquid level switch is precisely tuned and usually has good anti-hanging ability, with a vibration frequency of about 1200 Hz. Even if there is a slight hanging, it usually does not affect the use in the short term. But in special working conditions where hanging materials is easy, hanging materials can have a serious impact on the vibration of the fork body. To solve this problem, on-site personnel often use detergents for cleaning.

In order to further enhance the anti-hanging ability of the fork body in measuring viscous materials and reduce cleaning frequency, the fork body lining coating method was adopted for automation. Coating materials such as PTFE and ceramics can effectively reduce the adhesion of materials on the fork, making it easier for materials to slip off. This coating not only does not affect the resonance of the fork but also significantly enhances the anti-hanging ability.

In the spray rolling machine industry, the tuning fork liquid level switch is commonly used to measure sticky materials, such as the inner hole surface of automotive shock absorbers and metal rubber parts. After long-term use, these materials are prone to hanging on the measuring device. By adopting the fork outer lining coating technology, the frequency of user cleaning has been effectively reduced, and the service life of the product has been greatly improved, which has been recognized by customers.

However, please note that the need to use anti-hanging coatings depends on the specific working conditions. For example, asphalt has a high viscosity, and when the temperature is around 200 degrees Celsius, the tuning fork level switch can be used normally. However, when the temperature drops to room temperature, the asphalt will adhere very thickly to the probe, which exceeds the anti-hanging ability of the coating.

In summary, for materials with high viscosity, whether to add anti-hanging coatings to meet on-site measurement needs needs needs to be comprehensively judged based on actual working conditions.