Cleaning after Thermal Deburring with an Ultrasonic Cleaner - Case Study

Customers Criteria: Free from all contamination
Component: Production part
Material: Steel
Contamination prior to cleaning: Thermal deburring, soot
Total number off: 7
Number off per run: 1-4

Ultrasonic Cleaner Cleaning Agent Temperature(s) Concentration
Mi wash 40 Rodastel 30 40°C 5%
Mi wash 40 Galvex 17.30 50°C 2%
Mi rinse 40 De-ionised water 40°C 100%
Mi dryer 40 N/A 70°C N/A

Process for cleaning after Thermal Deburring:

Process: One part was cleaned individually initially to test if the Rodastel 30 cleaning fluid was compatible and efficient. Wash: Four parts were then placed in the basket and set for a cycle time of 5 minutes, after you can see the black contamination has been completely removed. Next the parts were cleaned in a second wash tank using Galvex 17.30, this fluid acts as a anti corrosion inhibitor and coats the parts with a hydrophobic layer as well as neutralize the part from the previous acid used. Rinse: The parts were then rinsed in de-ionized water for 2 minutes to remove any left on debris. Drying: Finally the parts were then dried in a hot air dryer for 10 minutes at 70°C.

Note: Depending on the size and the amount of parts you aim to clean process parameters may vary.

Before removing Thermal deburring & Soot

Before cleaning Thermal deburring

After removing Thermal deburring & Soot

after cleaning Thermal deburring

Customers Criteria: Free from all contamination
Component: Hydraulic blocks
Material: Cast Iron
Contamination prior to cleaning: Thermal deburring residue

Ultrasonic Cleaner Cleaning Agent Temperature(s) Concentration
Kemet 30 Wash Rodastel 30 45°C 4%
Kemet 30 Rinse Tap water 40°C 100%
Kemet 30 Rinse DI water +Korrostop 500 30°C 0.1%
Versa 120 Dry N/A 65°C N/A

Process for cleaning after Thermal Deburring:

Process: All tanks were allowed to reach the required temperature and degassed before cleaning.

The part was placed standing up in the basket then submerged in the Rodastel 30 wash tank for 5 minutes. You can see the combination of the ultrasonics and chemistry lifting off the contamination.

Next the part was rinsed in tap water for 1 minute; this is necessary to remove any residue cleaning agent which may cause staining. Note no ultrasonics was used in this stage but the basket was dunked manually to help flush any residue from the holes.

The part was then placed in an additional DI water rinse tank with a 0.1% dilution of Korrostop 5000 for 1 minute. Again the basket was manually dunking to flush out the holes. Due to the material of the part being cast iron the surface needs protecting from oxidation. Finally the part was dried in a hot air dryer set at 65°C for 10 minutes.

Before & After removing Thermal deburring residue

before and after removing Thermal deburring