Patenton — panteon of patents

(19)

RU

(11)

2 195 514

(13)

C2

(51)

IPC

(21) (22)

Application

2000129016/02, 2000-11-22

(24)

Start date

2000-11-22

(22)

Actual filing date

2000-11-22

(45)

Published

2002-12-27

(72)

Inventor

Gusarov V.I.Prozorov V.V.Lysenko A.A.Slepokon' Ju.I.Rjakhin V.M.Pavlenko V.I.

(73)

Holder

Gosudarstvennoe Predprijatie Kurskaja Atomnaja Ehlektrostantsija

METHOD FOR PASSIVATING OF POWER EQUIPMENT MANUFACTURED FROM PEARLITIC STEELS Russian patent published in 2002 - IPC

Abstract RU 2195514 C2

FIELD: corrosion protection of power equipment. SUBSTANCE: method involves treating steel with solution comprising hydrazine in an amount of 0.01-0.03 g/l and further comprising nitric acid added to provide for pH value of 3.0-4.5. Treatment process is performed for 1-5 hours at temperature of 80-100 C. Method allows corrosion rate of pearlitic steels in desalinized water to be reduced by 2-3 times and concentration of chemical agents in solution under treatment to be reduced by 80-100 times. Method is preferably used for passivating of nuclear power unit equipment, for example, condensate-supplying tract of nuclear power station, secondary coolant circuit of nuclear power station with water cooled power reactor. EFFECT: increased efficiency in protecting steel surfaces and simplified method. 5 tbl, 5 ex

Similar patents RU2195514C2

Title Year Author Number
PROCESS FOR WASTE-FREE PASSIVATION AND CONSERVATION OF POWER EQUIPMENT OF PEARLITE STEELS 2000
  • Gusarov V.I.
  • Slepokon' Ju.I.
  • Lysenko A.A.
  • Prozorov V.V.
  • Perminov I.A.
 RU2182193C1
METHOD OF OXIDATION OF POWER-GENERATING EQUIPMENT FROM PEARLITIC STEEL 2000
  • Gusarov V.I.
  • Slepokon' Ju.I.
  • Lysenko A.A.
  • Prozorov V.V.
  • Rjakhin V.M.
 RU2181790C1
METHOD OF PASSIVATION OF EQUIPMENT AND ARTICLES MADE FROM PEARLITE STEELS 2000
  • Gusarov V.I.
  • Prozorov V.V.
  • Lysenko A.A.
  • Slepokon' Ju.I.
  • Doil'Nitsyn V.A.
  • Oblogin A.V.
  • Bukreev A.N.
 RU2228388C2
METHOD FOR PROTECTING PEARLITE STEELS AGAINST CORROSION 2000
  • Gusarov V.I.
  • Slepokon' Ju.I.
  • Lysenko A.A.
  • Prozorov V.V.
  • Rjakhin V.M.
 RU2182192C1
METHOD OF DETERMINING THROUGH POROSITY OF OXIDE COATS OF STEELS 2000
  • Gusarov V.I.
  • Slepokon' Ju.I.
  • Prozorov V.V.
  • Lysenko A.A.
  • Rjakhin V.M.
  • Pavlenko V.I.
 RU2196975C2
METHOD FOR DECONTAMINATING WATER-COOLED REACTOR CIRCUITS 1999
  • Lebedev V.I.
  • Garusov Ju.V.
  • Prozorov V.V.
  • Moskovskij V.P.
  • Karrask M.P.
  • Tishkov V.M.
  • Cheremiskin V.I.
 RU2169957C2
METHOD FOR DECONTAMINATING INNER SURFACES OF NUCLEAR REACTOR EQUIPMENT 1998
  • Lebedev V.I.
  • Prozorov V.V.
  • Garusov Ju.V.
  • Shmakov L.V.
  • Nesterenko A.P.
  • Tishkov V.M.
  • Chvatov V.N.
  • Busyrev V.L.
 RU2126182C1
METHOD OF OXIDATION OF METALS AND ALLOYS AND DEVICE FOR METHOD EMBODIMENT 2000
  • Feofanov V.N.
  • Shmakov L.V.
  • Lebedev V.I.
  • Mochalov N.A.
  • Brusakov V.P.
  • Kozlov V.A.
  • Cheremiskin V.I.
 RU2189400C2
STEAM GENERATOR WASHING METHOD 1999
  • Ermolaev N.P.
  • Smykov V.B.
  • Ignatov V.I.
  • Kol'Zhanov V.F.
  • Ivanov V.N.
 RU2153644C1
METHOD FOR SPENT NUCLEAR FUEL STORAGE IN REACTOR COOLING PONDS 1994
  • Lebedev V.I.
  • Garusov Ju.V.
  • Kritskij V.G.
  • Shmakov L.V.
  • Simanovskij V.M.
  • Stjazhkin P.S.
  • Tishkov V.M.
 RU2065212C1

RU 2 195 514 C2

Authors

Gusarov V.I.

Prozorov V.V.

Lysenko A.A.

Slepokon' Ju.I.

Rjakhin V.M.

Pavlenko V.I.

Dates

2002-12-27—Published

2000-11-22—Filed

download Download PDF read Similar patents