Technical Information
Fine Cleaning Technologies

Precision Component Cleaning Using Spontaneous Emulsification

1. Precision Equipment Cleaning Trends

image:Precision Equipment Cleaning TrendsAuto part

The need for a high level of cleaning quality for precision components has been rising in line with the increasing miniaturization and precision of components. In addition, we have been developing low environmental burden cleaning systems to meet the demands of companies that are tackling environmental issues. In the automotive industry, for example, we are promoting the construction of high-detergency, low-environmental burden cleaning systems to meet the need for parts that are more precise accompanying the progress of automotive ITS (intelligent transport systems) as well as to help prevent recalls by improving component reliability.

2. Cleaning Technology Utilizing Spontaneous Emulsification

Through its efforts to promote development of high-detergency, low-environmental burden cleaning technology, Lion has developed cleaning technology that utilizes spontaneous emulsification.

image:Cleaning Technology Utilizing Spontaneous Emulsification

Process of removing machining oil clinging to a metal sheet through the “rolling-up effect”

image:Cleaning Technology Utilizing Spontaneous Emulsification

Removal process involving the spontaneous emulsification of machining oil clinging to a metal sheet

When a metal sheet on which oily grime clings is immersed in standard aqueous detergent, although a portion of the oil naturally balls up (the “rolling-up effect”), such grime cannot be completely removed. In contrast, if the metal is immersed in a detergent containing a spontaneous emulsifying detergent, which almost completely emulsifies oil at the microscopic level, the oil is easily removed.

3. Lineup and Applications of Lion Precision Component Detergents

List of Lion’s typical precision component detergents
  FM-20 FM-50 FM-1550 FM-100
Properties Neutral precision detergent Mildly alkaline general-purpose spray detergent Mildly alkaline general-purpose metal component detergent Alkaline precision detergent
External view Colorless transparent liquid Colorless transparent liquid Pale yellow transparent liquid Colorless or pale yellow liquid
pH 7.0 (as is) 12.5 (as is) 10.5 (as is) 13.2 (as is)
Viscosity
(mPa・s / 25°C)
30 (as is) 50 (as is) 7 (as is) 12 (as is)
Recommended dilution concentration (%) 5 to 20 1 to 5 3 to 5 5 to 10
Recommended washing method Ultrasonic immersion Ultrasonic immersion, spray Ultrasonic immersion, spray Ultrasonic immersion