Developer: Saint Petersburg Mining University
Industry
Mechanical Engineering, Machine Building, Metalworking, Metallurgy, Construction, Material Processing Technologies, Chemical Production
Project Research Team
Head: Evgeny Ivanovich Pryakhin Scientific Team: Vladimir Aleksandrovich Azarov
Scientific novelty
For the first time, a sequential combined treatment for carbon and low-alloy steel surfaces has been proposed: first, the surface is laser-treated according to a specific pattern, followed by the application of an additional phosphate layer. This combination has not been used previously and ensures stable adhesion quality of the paint coating to the treated surface, leading to increased service life and quality of the applied paintwork.
Advantages
The developed method ensures high adhesion (bonding to metal) of the applied polymer paint coating due to the micro-relief formed as a result of preliminary laser treatment and "cold" phosphating. Preliminary laser treatment eliminates local defects (sharp protrusions, depressions) that often occur after sandblasting, while "cold" phosphating takes place at room temperature and does not require additional heating. Furthermore, the formed phosphate film itself protects the steel surface.
Commercial implementation
The application of this method provides commercial benefits by ensuring stable adhesion of the paint coating to the surface, which extends the product's service life and reduces costs for its routine repair and maintenance. The method can be applied at enterprises specializing in: - preliminary preparation of steel parts before painting, applying primers, or polymer coatings; - processing of steel structures, profiles, and pipes before applying protective coatings; - preparation of containers, tanks, and apparatuses made of carbon steels for durable polymer coatings; - local surface preparation during the restoration of painted products.
Development stage
Laboratory testing
Required investment
0.00 RUB
Investor's share in the project
70%
Security documents
Patent No.2828891
Attachments
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