Q & A

A： Simply put, it is a cleaning solvent developed with hydrocarbon molecules as its structure. It is generally refined from petroleum.

A：

• Good cleaning performance: Hydrocarbon solvents are non-polar petroleum fractions like most lubricating oils, anti-rust oils, and machining oils. Therefore, based on the principle of similarity and compatibility, hydrocarbon solvents are better than water-based solvents in cleaning mineral oils.

• Good permeability: low surface tension, can clean threads or micropores that water-based detergents cannot reach.

• Low toxicity: According to toxicological tests, the absorption and release toxicity, oral toxicity and skin contact toxicity of hydrocarbon solvents are ultra-low, and they are not carcinogens, making it safer for cleaning operators to use.

• Good material compatibility: Hydrocarbon solvents do not contain moisture, chlorine, sulfur and other substances, and are pH-free, so they will not react chemically to various metal materials.

• Can be completely volatilized without any residue: Hydrocarbon solvents are very pure refined solvents that can be completely volatilized at room temperature and under heating without any residue.

• Environmental protection: Hydrocarbon solvents can be naturally degraded and will decompose quickly when buried in the soil; they do not contain chloride ions and have zero damage coefficient to ozone.

• A：

  Cleaning solvent	Hydrocarbon solvent	Gasoline, diesel, kerosene	Water-based degreasing agent
  Ingredients	Generally composed of carbon and hydrogen elements	It is composed of elements such as carbon, hydrogen and oxygen, but contains a large number of other substances, such as: S.P., aromatic and metal ions, etc.	Surfactants and additives (alkaline cleaning effect is better, neutrality is worse)
  Toxicity	Extremely low. (The ratio to trichlorethylene is about one thousandth)	High. Also a carcinogen	High. Great impact on the environment (environmental hormone substances)
  Controlled substances	None	None	Standard substances specified by laws and regulations
  Odor	Extremely low	High	Low
  Effect on metal surface	None. Does not participate in metal surface reactions	The ingredients are unstable and often remain on the surface (sometimes it cannot be determined by visual inspection)	It is possible to produce unnecessary surface changes, such as hydroxides, etc.
  Oxidation phenomenon	None	None	Prone to oxidation
  Recycling	Recyclable, recycled by vacuum distillation	Requires special waste disposal methods	Wastewater treatment equipment
  PH value	None	Should be neutral	Alkaline, Neutral, Acidic
  Anti-rust properties	Since the surface will be temporarily polarized after cleaning, it can temporarily prevent rust.	Maybe, not sure	none. Rust prevention is required after cleaning (easy to rust)

• A：

  1. Improve the intensity of ultrasound: Use vacuum degassing technology to expel the air in the hydrocarbon solvent, strengthen the "cavitation effect" of ultrasound and enhance the ultrasound effect.

  2. Cleaning effect without blind spots: The application of vacuum technology can eliminate the air in the blind holes, allowing the lotion to be completely immersed in them, achieving a cleaning effect without blind spots.

  3. Safety/Energy Saving/Emission Reduction: Implementing ultrasonic cleaning, steam bath washing, vacuum drying and decompression recycling and regeneration in a vacuum and decompressed closed environment can achieve safety (blocking oxygen and ignition points) and energy saving ( Lower boiling point), emission reduction (less detergent consumption for recycling and reuse).

  4. Vacuum distillation recovery: The characteristics of hydrocarbon solvents are high boiling point and low flash point. Distillation regeneration under normal pressure is impossible. Using vacuum distillation technology, the boiling point can be greatly lowered and oxygen and ignition points can be blocked from entering the distillation kettle, thereby enhancing the recovery of the solvent and the safety of use.      

  5. Vacuum steam bath + vacuum drying:

     1. Steam bath cleaning: In a closed vacuum environment, the hydrocarbon solvent is heated to produce pure steam for gas phase cleaning of the workpiece, and then the residual oil and particles remaining on the surface of the workpiece are washed away to achieve a very clean effect.

     2. Vacuum drying: After steam cleaning, the temperature of the object being washed increases; then it quickly enters a higher vacuum state. At this time, the remaining detergent on the object will suddenly boil (vacuum bumping effect), achieving 100% drying effect.

     3. Recycling: The vaporized steam is converted into pure liquid through the condenser and then recycled. The loss of detergent is reduced, which leads to considerable emission reduction and energy saving.

• A:

1. Solvent recovery machine (vacuum distillation recovery machine): The cleaning of hydrocarbon solvents must be equipped with a solvent recovery machine. As mentioned above, because it has a flash point, it needs to be operated in a reduced pressure environment to ensure its safety. Therefore, it is also called "vacuum distillation recovery machine". During the ongoing cleaning process, a continuous flow of regeneration fluid must be injected into the system to ensure the purity of the cleaning fluid; the larger the amount of regeneration fluid injected, the easier it is to control the cleanliness of the components.

2. Degasser (vacuum degasser): Hydrocarbon solvents contain a lot of air, so the intensity of ultrasound cannot be used normally. Therefore, a vacuum degasser is needed to extract the air dissolved in the lotion. Enhance the effect of ultrasound. As shown in the picture