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 PLATESInfo
- 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
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
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)
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)
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)
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 |
-
2005
- 2005-08-22 EA EA200501610A patent/EA008676B1/en not_active IP Right Cessation
Cited By (2)
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 |
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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 |