RU2013100963A - CHROMATION ELECTROLYTE AND METHOD OF APPLYING CHROME COATING ON THE INTERNAL SURFACE OF CYLINDRICAL PRODUCTS - Google Patents

CHROMATION ELECTROLYTE AND METHOD OF APPLYING CHROME COATING ON THE INTERNAL SURFACE OF CYLINDRICAL PRODUCTS Download PDF

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RU2013100963A
RU2013100963A RU2013100963/02A RU2013100963A RU2013100963A RU 2013100963 A RU2013100963 A RU 2013100963A RU 2013100963/02 A RU2013100963/02 A RU 2013100963/02A RU 2013100963 A RU2013100963 A RU 2013100963A RU 2013100963 A RU2013100963 A RU 2013100963A
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Russia
Prior art keywords
electrolyte
chromium
cylindrical products
sulfuric acid
chromation
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RU2013100963/02A
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Russian (ru)
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RU2529602C2 (en
Inventor
Лев Константинович Чарушин
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Открытое акционерное общество "Ижевский завод нефтяного машиностроения" (ОАО "Ижнефтемаш")
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Priority to RU2013100963/02A priority Critical patent/RU2529602C2/en
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  • Electroplating Methods And Accessories (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

1. Электролит хромирования, содержащий хромовый ангидрид, серную кислоту, отличающийся тем, что он содержит указанные компоненты в следующем соотношении, г/л:Хромовый ангидрид 80-130Серная кислота 4-62. Способ нанесения хромового покрытия на внутреннюю поверхность цилиндрических изделий, включающий принудительную подачу хромсодержащего электролита при заданных параметрах процесса в пространство между поверхностями обрабатываемого изделия и анодом, установленным коаксиально изделия, отличающийся тем, что в качестве электролита используют заявляемый электролит по п.1, нанесение покрытия осуществляют при температуре электролита 60-65°C, плотности тока 60-80 А/дм, скорости протока электролита 120-200 см/с.1. The chromium electrolyte containing chromic anhydride, sulfuric acid, characterized in that it contains these components in the following ratio, g / l: Chromic anhydride 80-130 Sulfuric acid 4-62. The method of applying a chromium coating to the inner surface of cylindrical products, including the forced supply of a chromium-containing electrolyte at specified process parameters into the space between the surfaces of the workpiece and the anode mounted coaxially of the product, characterized in that the inventive electrolyte according to claim 1 is used as the electrolyte, coating is carried out at an electrolyte temperature of 60-65 ° C, a current density of 60-80 A / dm, an electrolyte flow rate of 120-200 cm / s.

Claims (2)

1. Электролит хромирования, содержащий хромовый ангидрид, серную кислоту, отличающийся тем, что он содержит указанные компоненты в следующем соотношении, г/л:1. The chromium electrolyte containing chromic anhydride, sulfuric acid, characterized in that it contains these components in the following ratio, g / l: Хромовый ангидрид 80-130Chromic Anhydride 80-130 Серная кислота 4-6Sulfuric acid 4-6 2. Способ нанесения хромового покрытия на внутреннюю поверхность цилиндрических изделий, включающий принудительную подачу хромсодержащего электролита при заданных параметрах процесса в пространство между поверхностями обрабатываемого изделия и анодом, установленным коаксиально изделия, отличающийся тем, что в качестве электролита используют заявляемый электролит по п.1, нанесение покрытия осуществляют при температуре электролита 60-65°C, плотности тока 60-80 А/дм2, скорости протока электролита 120-200 см/с. 2. The method of applying a chromium coating to the inner surface of cylindrical products, including the forced supply of a chromium-containing electrolyte at specified process parameters into the space between the surfaces of the workpiece and the anode mounted coaxially of the product, characterized in that the inventive electrolyte according to claim 1 is used as the electrolyte, deposition coatings are carried out at an electrolyte temperature of 60-65 ° C, a current density of 60-80 A / dm 2 , an electrolyte flow rate of 120-200 cm / s.
RU2013100963/02A 2013-01-09 2013-01-09 Method to apply chrome coating onto internal surface of cylindrical items RU2529602C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2013100963/02A RU2529602C2 (en) 2013-01-09 2013-01-09 Method to apply chrome coating onto internal surface of cylindrical items

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Application Number Priority Date Filing Date Title
RU2013100963/02A RU2529602C2 (en) 2013-01-09 2013-01-09 Method to apply chrome coating onto internal surface of cylindrical items

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RU2013100963A true RU2013100963A (en) 2014-07-20
RU2529602C2 RU2529602C2 (en) 2014-09-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114703516A (en) * 2021-12-14 2022-07-05 西安昆仑工业（集团）有限责任公司 Rapid chromium plating process method for artillery barrel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114703516A (en) * 2021-12-14 2022-07-05 西安昆仑工业（集团）有限责任公司 Rapid chromium plating process method for artillery barrel

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RU2529602C2 (en) 2014-09-27

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