PROCESS FOR WASTE-FREE PASSIVATION AND CONSERVATION OF POWER EQUIPMENT OF PEARLITE STEELS Russian patent published in 2002 - IPC

Abstract RU 2182193 C1

FIELD: processes for providing corrosion-proof oxide coating on pearlite steels, possibly protection of power equipment against corrosion in idle, transition and stationary modes. SUBSTANCE: process comprises steps of creating oxide coating onto surfaces of pearlite steels by treating them with ammonium nitride in aqueous or steam medium at (95-140)C for 1.5-3 hours at concentration (60-150)mg/kg. It enhances efficiency of protecting equipment against corrosion and prevents waste formation as at operation of power equipment in nominal mode ammonium nitride is decomposed to nitrogen and water. EFFECT: enhanced efficiency of protection. 4 tbl

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RU 2 182 193 C1

Authors

Gusarov V.I.

Slepokon' Ju.I.

Lysenko A.A.

Prozorov V.V.

Perminov I.A.

Dates

2002-05-10Published

2000-11-22Filed