RU2015111777A - The method of applying a ceramic black coating on valve metals by the method of microarc oxidation and the coating obtained by this method - Google Patents

The method of applying a ceramic black coating on valve metals by the method of microarc oxidation and the coating obtained by this method Download PDF

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RU2015111777A
RU2015111777A RU2015111777A RU2015111777A RU2015111777A RU 2015111777 A RU2015111777 A RU 2015111777A RU 2015111777 A RU2015111777 A RU 2015111777A RU 2015111777 A RU2015111777 A RU 2015111777A RU 2015111777 A RU2015111777 A RU 2015111777A
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ceramic coating
product
sodium
microarc oxidation
alloy
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RU2015111777A
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Russian (ru)
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RU2607875C2 (en
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Павел Игоревич Бутягин
Антон Владимирович Большанин
Светлана Сергеевна Сафронова
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Закрытое акционерное общество "МАНЭЛ"
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/14—Producing integrally coloured layers

Abstract

1. Способ нанесения керамического покрытия оптически черного цвета на изделие из вентильного металла и его сплава, включающий микродуговое оксидирование изделия в импульсном анодно-катодном режиме в водном растворе электролита на основе дигидрофосфата натрия, отличающийся тем, что электролит дополнительно содержит ферроцианид калия, молибдат и силикат натрия при следующем соотношении компонентов, г/л:2. Способ по п. 1, отличающийся тем, что микродуговое оксидирование осуществляют в импульсном анодно-катодном режиме при частоте следования импульсов 10-50 Гц, длительности импульса 100-500 мкс, напряжении 100-700 В и длительности процесса оксидирования 3-50 мин.3. Способ по п. 1, отличающийся тем, что керамическое покрытие черного цвета наносят на изделия из деформируемых и литейных сплавов алюминия с высоким содержанием кремния и сплавы титана.4. Керамическое покрытие оптически черного цвета, нанесенное на изделие из вентильного металла и его сплава способом по любому из пп. 1-3 в виде железосодержащего слоя толщиной 5-60 мкм, который дополнительно содержит Si в количестве 0,2-13,0 мас.% и Мо 0,1-7,0 мас.%.1. The method of applying a ceramic coating of optically black on a valve metal product and its alloy, including microarc oxidation of the product in a pulsed anode-cathode mode in an aqueous solution of sodium dihydrogen phosphate electrolyte, characterized in that the electrolyte further comprises potassium ferrocyanide, molybdate and silicate sodium in the following ratio of components, g / l: 2. The method according to claim 1, characterized in that the microarc oxidation is carried out in a pulsed anode-cathode mode at a pulse repetition rate of 10-50 Hz, a pulse duration of 100-500 μs, a voltage of 100-700 V and an oxidation process of 3-50 min. 3 . The method according to claim 1, characterized in that the black ceramic coating is applied to products from wrought and cast aluminum alloys with a high silicon content and titanium alloys. A ceramic coating of optically black color deposited on a valve metal and its alloy product by the method according to any one of claims. 1-3 in the form of an iron-containing layer with a thickness of 5-60 μm, which additionally contains Si in an amount of 0.2-13.0 wt.% And Mo 0.1-7.0 wt.%.

Claims (4)

1. Способ нанесения керамического покрытия оптически черного цвета на изделие из вентильного металла и его сплава, включающий микродуговое оксидирование изделия в импульсном анодно-катодном режиме в водном растворе электролита на основе дигидрофосфата натрия, отличающийся тем, что электролит дополнительно содержит ферроцианид калия, молибдат и силикат натрия при следующем соотношении компонентов, г/л:1. The method of applying a ceramic coating of optically black on a valve metal product and its alloy, including microarc oxidation of the product in a pulsed anode-cathode mode in an aqueous solution of sodium dihydrogen phosphate electrolyte, characterized in that the electrolyte further comprises potassium ferrocyanide, molybdate and silicate sodium in the following ratio of components, g / l: дигидрофосфат натрияsodium dihydrogen phosphate 10-3010-30 силикат натрияsodium silicate 1-101-10 ферроцианид калияpotassium ferrocyanide 5-155-15 молибдат натрияsodium molybdate 1-101-10
2. Способ по п. 1, отличающийся тем, что микродуговое оксидирование осуществляют в импульсном анодно-катодном режиме при частоте следования импульсов 10-50 Гц, длительности импульса 100-500 мкс, напряжении 100-700 В и длительности процесса оксидирования 3-50 мин.2. The method according to p. 1, characterized in that the microarc oxidation is carried out in a pulsed anode-cathode mode with a pulse repetition rate of 10-50 Hz, a pulse duration of 100-500 μs, a voltage of 100-700 V and an oxidation process of 3-50 minutes . 3. Способ по п. 1, отличающийся тем, что керамическое покрытие черного цвета наносят на изделия из деформируемых и литейных сплавов алюминия с высоким содержанием кремния и сплавы титана.3. The method according to p. 1, characterized in that the black ceramic coating is applied to products from wrought and cast aluminum alloys with a high silicon content and titanium alloys. 4. Керамическое покрытие оптически черного цвета, нанесенное на изделие из вентильного металла и его сплава способом по любому из пп. 1-3 в виде железосодержащего слоя толщиной 5-60 мкм, который дополнительно содержит Si в количестве 0,2-13,0 мас.% и Мо 0,1-7,0 мас.%. 4. A ceramic coating of optically black color deposited on a product of valve metal and its alloy by the method according to any one of paragraphs. 1-3 in the form of an iron-containing layer with a thickness of 5-60 μm, which additionally contains Si in an amount of 0.2-13.0 wt.% And Mo 0.1-7.0 wt.%.
RU2015111777A 2015-03-31 2015-03-31 Method for application of ceramic black coating on valve metals by microarc oxidation and coating obtained using said method RU2607875C2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106757267A (en) * 2017-01-19 2017-05-31 山西平阳重工机械有限责任公司 A kind of preparation method of cast aluminum base composite material surface green black colour micro-arc oxidation films
CN106757262A (en) * 2016-12-13 2017-05-31 安徽省煜灿新型材料科技有限公司 A kind of preparation method of wear-resistant soleplate
CN110629268A (en) * 2019-10-29 2019-12-31 长沙新材料产业研究院有限公司 Surface protection process for high-precision light alloy part

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2096534C1 (en) * 1996-07-18 1997-11-20 Институт химии Дальневосточного отделения РАН Method of applying optically black protective coatings onto valve metals
RU2285066C1 (en) * 2005-05-14 2006-10-10 Анатолий Иванович Мамаев Electrolyte for forming black ceramic coat on rectifying metals and their alloys; method of forming such coat and coat formed by this method
CN101570875B (en) * 2009-06-03 2011-03-16 哈尔滨工程大学 Method for forming brown ceramic membrane on surface of Mg-Li alloy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106757262A (en) * 2016-12-13 2017-05-31 安徽省煜灿新型材料科技有限公司 A kind of preparation method of wear-resistant soleplate
CN106757262B (en) * 2016-12-13 2018-10-09 安徽省煜灿新型材料科技有限公司 A kind of preparation method of wear-resistant soleplate
CN106757267A (en) * 2017-01-19 2017-05-31 山西平阳重工机械有限责任公司 A kind of preparation method of cast aluminum base composite material surface green black colour micro-arc oxidation films
CN110629268A (en) * 2019-10-29 2019-12-31 长沙新材料产业研究院有限公司 Surface protection process for high-precision light alloy part

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