EA200501610A1 - METHOD OF DRAWING TWO-LAYER GALVANIC COATING ON COPPER SLEEVES AND CRYSTALLIZER PLATES - Google Patents

METHOD OF DRAWING TWO-LAYER GALVANIC COATING ON COPPER SLEEVES AND CRYSTALLIZER PLATES

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Publication number
EA200501610A1
EA200501610A1 EA200501610A EA200501610A EA200501610A1 EA 200501610 A1 EA200501610 A1 EA 200501610A1 EA 200501610 A EA200501610 A EA 200501610A EA 200501610 A EA200501610 A EA 200501610A EA 200501610 A1 EA200501610 A1 EA 200501610A1
Authority
EA
Eurasian Patent Office
Prior art keywords
coating
molds
electrochemical
protective coating
plates
Prior art date
Application number
EA200501610A
Other languages
Russian (ru)
Other versions
EA008676B1 (en
Inventor
Николай Викторович Андрианов
Виктор Аркадьевич Маточкин
Валентин Юрьевич Гуненков
Сергей Михайлович Борщов
Владимир Викторович Жуков
Владимир Александрович Николаев
Александр Владимирович Демин
Original Assignee
Республиканское Унитарное Предприятие "Белорусский Металлургический Завод"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Республиканское Унитарное Предприятие "Белорусский Металлургический Завод" filed Critical Республиканское Унитарное Предприятие "Белорусский Металлургический Завод"
Priority to EA200501610A priority Critical patent/EA008676B1/en
Publication of EA200501610A1 publication Critical patent/EA200501610A1/en
Publication of EA008676B1 publication Critical patent/EA008676B1/en

Links

Abstract

Изобретение относится к области металлургии, в частности к машинам непрерывного литья заготовок (МНЛЗ), а точнее к технологии нанесения защитного покрытия при изготовлении плит и гильз кристаллизаторов. Задача, решаемая изобретением, состоит в разработке создания защитного покрытия, обеспечивающего высокую износостойкость и твердость покрытия, увеличении срока службы кристаллизаторов и повышении качества разливаемых заготовок. Технический результат, достигаемый при использовании изобретения, заключается в получении защитного покрытия, обеспечивающего улучшенную смазываемость поверхности жидкой сталью, высокую адгезию покрытия с медной основой, разницу в коэффициентах теплового расширения покрытий и основы в процессе эксплуатации кристаллизаторов, снижение термической деформации кристаллизаторов в процессе эксплуатации, увеличение стойкости плит и гильз кристаллизаторов. Решение поставленной задачи обеспечивается тем, что способ электрохимического нанесения двухслойного защитного покрытия включает следующие операции: промывку поверхности изделия и двухслойное электрохимическое покрытие в ванне с электролитами. По изобретению перед нанесением покрытия изделия предварительно обрабатывают в электролите, содержащем гидроксид натрия, затем производят промывку поверхности изделия моющими средствами, пемзой, растворителем и подготовительную операцию промывания раствором соляной кислоты и раствором сульфаминовой кислоты, а электрохимическое покрытие наносят в два слоя: сначала осуществляют электрохимическое никелирование в сульфаматном электролите. Для получения покрытия толщиной 845 мкмThe invention relates to the field of metallurgy, in particular to continuous casting machines (CCM), and more specifically to the technology of applying a protective coating in the manufacture of plates and sleeves of crystallizers. The problem solved by the invention is to develop a protective coating that provides high wear resistance and hardness of the coating, increasing the service life of the molds and improving the quality of cast billets. The technical result achieved with the use of the invention is to obtain a protective coating that provides improved surface lubricity with liquid steel, high adhesion of the coating to the copper base, the difference in the thermal expansion coefficients of the coatings and the base during the operation of the molds, reduction of the thermal deformation of the molds during the operation, increase resistance plates and sleeves molds. The solution of the problem is ensured by the fact that the method of electrochemical deposition of a two-layer protective coating includes the following operations: washing the surface of the product and a two-layer electrochemical coating in a bath with electrolytes. According to the invention, prior to coating, the products are pretreated in an electrolyte containing sodium hydroxide, then the product is washed with detergents, pumice, solvent and a preparatory washing operation with a solution of hydrochloric acid and sulfamic acid solution, and the electrochemical coating is applied in two layers: first, electrochemical nickel plating is performed in sulphamate electrolyte. To obtain a coating thickness of 845 microns

EA200501610A 2005-08-22 2005-08-22 Method for applying two-layer galvanic coating on copper sleeve and crystallizer plate EA008676B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EA200501610A EA008676B1 (en) 2005-08-22 2005-08-22 Method for applying two-layer galvanic coating on copper sleeve and crystallizer plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EA200501610A EA008676B1 (en) 2005-08-22 2005-08-22 Method for applying two-layer galvanic coating on copper sleeve and crystallizer plate

Publications (2)

Publication Number Publication Date
EA200501610A1 true EA200501610A1 (en) 2007-04-27
EA008676B1 EA008676B1 (en) 2007-06-29

Family

ID=41263931

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200501610A EA008676B1 (en) 2005-08-22 2005-08-22 Method for applying two-layer galvanic coating on copper sleeve and crystallizer plate

Country Status (1)

Country Link
EA (1) EA008676B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108856661A (en) * 2018-08-09 2018-11-23 辽宁科技大学 Conticaster trench wall crystallizer copper plate producing process and the electroplating tank structure of use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2750731C1 (en) * 2020-09-04 2021-07-01 Федеральное государственное бюджетное образовательное учреждение высшего образования Иркутский государственный университет путей сообщения (ФГБОУ ВО ИрГУПС) Method for pre-processing of small-sized parts made of alloys based on copper with internal holes and grooves for electrodeposition of coatings on them

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383934B1 (en) * 1988-07-22 1993-09-29 Satosen Co., Ltd. Mold for continuously casting steel
RU2094167C1 (en) * 1995-08-31 1997-10-27 Акционерное общество "Новолипецкий металлургический комбинат" Method of strengthening working slabs of molds in continuous steel casting installation
FR2750903B1 (en) * 1996-07-11 1998-09-18 Usinor Sacilor ELEMENT OF A LINGOTIERE FOR THE CONTINUOUS CASTING OF METALS, COMPRISING A COOLED WALL IN COPPER OR COPPER ALLOY HAVING A METAL COATING ON ITS EXTERNAL SURFACE AND METHOD FOR COATING THE SAME
RU2318631C2 (en) * 2002-05-27 2008-03-10 Конкаст Аг Electroplating method on mold of continuous casting plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108856661A (en) * 2018-08-09 2018-11-23 辽宁科技大学 Conticaster trench wall crystallizer copper plate producing process and the electroplating tank structure of use
CN108856661B (en) * 2018-08-09 2023-11-03 辽宁科技大学 Production method of crystallizer copper plate on inner wall of groove of continuous casting machine and electroplating bath structure adopted by production method

Also Published As

Publication number Publication date
EA008676B1 (en) 2007-06-29

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): BY RU