Removal of cast iron sand and carbon using the power of chemistry.
This is a technology that uses chemical reactions to remove casting sand from the interior and carbon from the surface of cast iron with complex shapes. Developed 70 years ago, it is a highly reliable technology that is still in use today and has been adopted by many customers handling cast iron. Examples of its adoption are included in the catalog, so please refer to it. As this is a very niche treatment with low recognition, we are also exploring new applications. If you have any questions, please feel free to contact us.
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basic information
This is a technology that removes cast iron sand and improves cleanliness (contamination level) by utilizing chemical reactions with molten salt to dissolve and remove carbon from the surface of cast iron, which hinders surface treatments such as plating and welding. It is worth noting that while it is referred to as "Korin treatment" in some places, the official name is "Koleen treatment."
Price range
Delivery Time
※Basically, we will decide through discussions. (Approximately 1 week as a guideline)
Applications/Examples of results
Cleaning of oil passages in hydraulic valves Removal of casting sand from the water jacket of the turbocharger bearing housing Removal of casting sand from the vacuum pump casing Removal of casting sand from the surface of the oil cooler installed in the engine Removal of carbon from cast iron surfaces affecting electroless nickel plating Removal of carbon from cast iron surfaces affecting white metal (Babbitt metal) casting Removal of carbon from surfaces affecting brazing to pipes of cast iron parts
Detailed information
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Image diagram of the surface condition of cast iron due to colline processing.
Company information
Our company is one of the Parker Group companies that are adopted in various fields within the surface treatment industry. At the Ebina factory, we mainly undertake the "Colleen No. 4 treatment," which is used in the hydraulic equipment industry, as a technology to enhance the cleanliness of complex cast iron structures and remove carbon from the surface of cast iron.