There are also many different formulations of ultrasonic cleaning solvents. Its main components are detergent, reactant, energy storage element and surfactant. Various types and quantities of these ingredients are combined into various types of ultrasonic cleaning solutions. Therefore, it is very important to select appropriate ultrasonic cleaning solvent when using ultrasonic cleaning machine.
Ultrasonic cleaners can be used to clean different types of objects. For each type of object, a corresponding type of ultrasonic cleaning fluid is available. To ensure proper cleaning and avoid damage to objects, only use the appropriate type of cleaning fluid.
Not all contaminants can be removed by all detergents, even in ultrasonic cleaners. The type of part will also be an important factor. For example, 70% sulfuric acid can easily remove oxide scale, but it can also corrode carbon steel. Therefore, a compromise must be made between removing contaminants and protecting components.
The pH value of ultrasonic cleaning solution will vary. The pH of the solution shall be considered when selecting the cleaning solution for cleaning specific items. For example, when cleaning soft metals, a low pH cleaning solution should be used. Soft metals are easily damaged by cavitation.
Alkaline solution: the pH value of alkaline solution is 10 or higher. The higher the pH value, the more corrosive the solution is. They may or may not contain caustic soda, depending on the strength of the detergent. Medium alkaline solution (ph11.0 to 12.5), suitable for almost all metals, including cast iron, steel, stainless steel, aluminum, zinc, copper, brass and tin. They are also effective in cleaning glass, ceramics and most plastic materials.
High alkali solution: high alkali solution is a special case of alkaline solution. They can be used in special cases; However, we should always try to use a mild alkaline ultrasonic cleaner first. Strong corrosive cleaner containing hydroxide and silicate is suitable for removing heavy grease, oil and wax from cast iron, steel and stainless steel. When placing magnesium in our ultrasonic cleaning machine, if we want to avoid damaging parts, we must use a low corrosive solution.
Acid solution: the pH value of the acid solution is about 5.0 or lower, and the cleaner with lower pH value is more corrosive. The use of acid solutions usually varies from material to material, as some acids damage the substrate while others do not. As long as solutions contain inhibitors that protect base metals, they are well suited to remove oxides from most metals.
Deionized water: Deionized water can be safely used for any material that can be safely put into water, which means that it can be used for almost all materials. Metal, fabric, glass, plastic, epoxy resin and hard rubber materials are acceptable. When using deionized water as the ultrasonic cleaning solution, the type of parts should be considered, because many parts will oxidize rapidly when taken out of the solution, unless they are subsequently put into the wetting solution and dried immediately. Friction free bearings, small servo motors, switches, and printed circuit boards are some examples that require special post cleaning.
The manufacturer of ultrasonic cleaning machine believes that it is very important to analyze the pollutants and select the correct cleaning solvent according to the different products.
The above is the relevant content of the question answer. I hope it can help you. If you have any questions about this problem, you are welcome to follow our website and consult our staff. We will serve you wholeheartedly.