ELECTROLYTE BASED ON TRIVALENT CHROMIUM COMPOUNDS TO OBTAIN A COMPOSITE COATING Russian patent published in 2021 - IPC C25D15/00 

Abstract RU 2760141 C1

FIELD: electroplating technology.

SUBSTANCE: invention relates to the field of electroplating and can be used for deposition of corrosion-resistant coatings based on a chrome matrix to protect against corrosion and wear of parts operating in aggressive corrosive environments containing chlorides and under abrasion loads. The electrolyte contains, g/l: CrCl3 266-399; Cr2(SO4)3 125-188; Na2MoO4 9.7-12.0; NaH2PO2 8.8-13.2; B4C 1-5. The electrolyte is prepared on the basis of a mixture of dimethylformamide: water in a ratio of 1:1 by volume.

EFFECT: coatings have high corrosion resistance in chloride-containing media, the corrosion rate of the coating is 0.07-0.1 g/m2.h, the microhardness of the coating is 17-21 GPa.

1 cl, 3 ex

Similar patents RU2760141C1

Title Year Author Number
ELECTROLYTE FOR THE DEPOSITION OF MOLYBDENUM ALLOYED CHROMIUM PLATING 2022
  • Kruglikov Sergej Sergeevich
  • Telezhkina Alina Valerevna
  • Kuznetsov Vitalij Vladimirovich
  • Averina Yuliya Mikhajlovna
  • Aleksa Aleksandra Anatolevna
  • Zhulikov Vladimir Vladimirovich
  • Frolov Kirill Vladimirovich
RU2778529C1
PROTECTIVE COATING FOR MEDICAL INSTRUMENTS AND METHOD OF ITS APPLICATION 2017
  • Telezhkina Alina Valerevna
  • Kuznetsov Vitalij Vladimirovich
  • Kruglikov Sergej Sergeevich
RU2674694C1
METHOD OF ELECTROPLATING CHROMIUM COATINGS FROM ELECTROLYTE BASED ON HEXAHYDRATE OF CHROMIUM (III) SULPHATE AND SODIUM FORMATE 2023
  • Arshinova Irina Stanislavovna
  • Kuznetsov Vitalij Vladimirovich
  • Telezhkina Alina Valerevna
  • Sviridenkova Natalya Vasilevna
  • Zhulikov Vladimir Vladimirovich
  • Zheleznov Evgenij Valerevich
  • Balabanova Olga Alekseevna
RU2814771C1
CHROMIUM PLATING ELECTROLYTE 2009
  • Zhirnov Aleksandr Dmitrievich
  • Il'In Vjacheslav Aleksandrovich
  • Semenychev Valentin Vladimirovich
  • Salakhova Rozalija Kabirovna
  • Tjurikov Evgenij Vladimirovich
RU2409707C1
ELECTROLYTE FOR ELECTRO-CHEMICAL SEDIMENTATION OF COMPOSITE CHROMIUM COATING 2009
  • Tkachev Aleksej Grigor'Evich
  • Litovka Jurij Vladimirovich
  • D'Jakov Igor' Alekseevich
  • Kuznetsova Ol'Ga Aleksandrovna
RU2422563C1
METHOD FOR ELECTROCHEMICAL DEPOSITION OF CHROME COATINGS FROM SELF-REGULATING ELECTROLYTE BASED ON TRIVALENT CHROMIUM COMPOUNDS 2020
  • Vinokurov Evgenii Gennadevich
  • Skopintsev Vladimir Dmitrievich
  • Nevmiatullina Khaliia Abdrakhmanovna
RU2734986C1
ELECTROLYTE FOR DEPOSITING CHROMIUM-BASED COMPOSITE COATINGS 1996
  • Sysoev Gennadij Nikolaevich
RU2094545C1
METHOD FOR APPLYING IRON-NICKEL-CHROMIUM COATINGS ON WORN SURFACES OF PARTS USING REVERSE CURRENT 2021
  • Mamontova Yuliya Evgenevna
  • Stekolnikov Yurij Aleksandrovich
RU2775586C1
METHOD OF HARDENING SURFACE OF ROLLING-PRESS TOOL USING CHROMIUM-CADMIUM ELECTROLYTE 2022
  • Velichko Aleksandr Grigorevich
  • Sapronov Oleg Valerevich
  • Kryvyi Iurii Vladimirovich
RU2816966C2
METHOD OF MAKING PROTECTIVE COATINGS ON VALVE METALS AND ALLOYS THEREOF 2017
  • Gnedenkov Sergej Vasilevich
  • Sinebryukhov Sergej Leonidovich
  • Egorkin Vladimir Sergeevich
  • Vyalyj Igor Evgenevich
RU2677388C1

RU 2 760 141 C1

Authors

Kruglikov Sergej Sergeevich

Telezhkina Alina Valerevna

Kuznetsov Vitalij Vladimirovich

Dushik Vladimir Vladimirovich

Dates

2021-11-22Published

2021-03-05Filed