RU2003133085A - METHOD FOR PRODUCING SURFACE COATINGS ON SURFACE - Google Patents

METHOD FOR PRODUCING SURFACE COATINGS ON SURFACE Download PDF

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RU2003133085A
RU2003133085A RU2003133085/02A RU2003133085A RU2003133085A RU 2003133085 A RU2003133085 A RU 2003133085A RU 2003133085/02 A RU2003133085/02 A RU 2003133085/02A RU 2003133085 A RU2003133085 A RU 2003133085A RU 2003133085 A RU2003133085 A RU 2003133085A
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Russia
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electrolyte
screen
air
treated
section
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RU2003133085/02A
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Russian (ru)
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RU2263728C2 (en
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Валерий Константинович Шаталов (RU)
Валерий Константинович Шаталов
Леонид Васильевич Лысенко (RU)
Леонид Васильевич Лысенко
Сергей Леонидович Лысенко (RU)
Сергей Леонидович Лысенко
Original Assignee
Валерий Константинович Шаталов (RU)
Валерий Константинович Шаталов
Леонид Васильевич Лысенко (RU)
Леонид Васильевич Лысенко
Сергей Леонидович Лысенко (RU)
Сергей Леонидович Лысенко
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Priority to RU2003133085/02A priority Critical patent/RU2263728C2/en
Publication of RU2003133085A publication Critical patent/RU2003133085A/en
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  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Claims (2)

Способ получения защитных покрытий на поверхности металлов и сплавов путем микродугового оксидирования с помощью устройства, снабженного электродом и пористым экраном, через который подается жидкий электролит и приложением напряжения между обрабатываемым участком поверхности и пористым экраном с переменной толщиной сечения, через который подается электролит при нарастающем напряжении до 190 В, причем процесс оксидирования осуществляют путем перемещения устройства по обрабатываемой поверхности, при этом вектор скорости перемещения и вектор максимального градиента толщины сечения пористого экрана взаимно перпендикулярны и находятся в зависимости от следующего соотношения:A method of producing protective coatings on the surface of metals and alloys by microarc oxidation using a device equipped with an electrode and a porous screen through which a liquid electrolyte is supplied and voltage is applied between the treated surface and a porous screen with a variable section thickness through which the electrolyte is supplied with increasing voltage up to 190 V, and the oxidation process is carried out by moving the device along the surface to be treated, with the vector of the speed of movement and the vector of the maximum gradient of the thickness of the cross section of the porous screen is mutually perpendicular and depends on the following ratio:
Figure 00000001
Figure 00000001
где V - скорость перемещения пористого экрана, м/с;where V is the velocity of the porous screen, m / s; Hmax - максимальная толщина сечения экрана, м;H max - the maximum thickness of the cross section of the screen, m; Hmin - минимальная толщина сечения экрана, м;H min - the minimum thickness of the cross section of the screen, m; U - напряжение электрического тока между экраном и обрабатываемой поверхностью, В,U is the voltage of the electric current between the screen and the workpiece, V, отличающийся тем, что установка снабжена системой отсоса электролита с воздухом с обрабатываемой поверхности, причем соотношение расходов воздуха и электролита находится в следующей зависимости:characterized in that the installation is equipped with an electrolyte suction system with air from the surface to be treated, and the ratio of air to electrolyte consumption is in the following relationship:
Figure 00000002
,
Figure 00000002
,
где Qвозд - расход воздуха, л/мин;where Q air - air flow, l / min; Qэлект - расход электролита, л/мин,Q electron - electrolyte flow, l / min а соотношение силы тока оксидирования и расхода электролита находятся в интервале по формуле:and the ratio of the oxidation current to the electrolyte consumption are in the range according to the formula:
Figure 00000003
,
Figure 00000003
,
где i - сила тока оксидирования А/дм2.where i is the oxidation current strength A / dm 2 .
2. Способ по п.1, отличающийся тем, что при откачке электролита с воздухом с обрабатываемой поверхности происходит локализация активной зоны микродугового разряда со стабилизацией кинетического слоя химических превращений и формирование более однородного и более качественного покрытия.2. The method according to claim 1, characterized in that when pumping the electrolyte with air from the surface to be treated, the active zone of the microarc discharge is localized with the stabilization of the kinetic layer of chemical transformations and the formation of a more uniform and better coating.
RU2003133085/02A 2003-11-11 2003-11-11 Method for providing of protective coatings on metal or alloy surface RU2263728C2 (en)

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Effective date: 20061112