WO1995018250A1 - Procede de production d'un revetement sur des metaux a conductivite unipolaire - Google Patents

Procede de production d'un revetement sur des metaux a conductivite unipolaire Download PDF

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Publication number
WO1995018250A1
WO1995018250A1 PCT/RU1993/000324 RU9300324W WO9518250A1 WO 1995018250 A1 WO1995018250 A1 WO 1995018250A1 RU 9300324 W RU9300324 W RU 9300324W WO 9518250 A1 WO9518250 A1 WO 9518250A1
Authority
WO
WIPO (PCT)
Prior art keywords
meτalla
universal
πρi
ποveρχnοsτi
uniποlyaρnοy
Prior art date
Application number
PCT/RU1993/000324
Other languages
English (en)
Russian (ru)
Inventor
Vladimir Alexeevich Fedorov
Original Assignee
Nauchno-Issledovatelsky Inzhenerny Tsentr 'agromet'
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 Nauchno-Issledovatelsky Inzhenerny Tsentr 'agromet' filed Critical Nauchno-Issledovatelsky Inzhenerny Tsentr 'agromet'
Priority to RU96111550A priority Critical patent/RU2110623C1/ru
Priority to PCT/RU1993/000324 priority patent/WO1995018250A1/fr
Publication of WO1995018250A1 publication Critical patent/WO1995018250A1/fr

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Classifications

    • 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
    • C25D11/024—Anodisation under pulsed or modulated current or potential
    • 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
    • C25D11/026—Anodisation with spark discharge

Definitions

  • variable rate 20 alterations of the variable rate.
  • the electrical method for applying glass is known.
  • the bath itself made from an electrically insoluble metal, may also be used.
  • Electric products are offered with a variety of potentials, the size of which is quickly increased;
  • the basic task of the present invention is to open the task. s ⁇ s ⁇ ba ⁇ lucheniya ⁇ y ⁇ iya on me ⁇ alla ⁇ with uni- ⁇ lya ⁇ n ⁇ y ⁇ v ⁇ dim ⁇ s ⁇ yu, ⁇ i ⁇ m vyb ⁇ s ⁇ s ⁇ ava ele ⁇ - li ⁇ a and ⁇ my na ⁇ yazheniya, ⁇ davaem ⁇ g ⁇ on ele ⁇ dy in ⁇ tses- se ⁇ vedeniya ele ⁇ liza would s ⁇ s ⁇ bs ⁇ v ⁇ vali s ⁇ zdaniyu usl ⁇ -
  • ⁇ y is ⁇ lzuyu ⁇ in ⁇ aches ⁇ ve ⁇ dn ⁇ g ⁇ of ele ⁇ d ⁇ v
  • v ⁇ zni ⁇ ayu ⁇ is ⁇ vye ⁇ az ⁇ yady
  • s ⁇ - glasn ⁇ iz ⁇ b ⁇ e ⁇ eniyu in ⁇ aches ⁇ ve ele ⁇ li ⁇ a is ⁇ lzuyu ⁇ v ⁇ d- 0 ny ⁇ as ⁇ v ⁇ schel ⁇ chi.
  • Ts ⁇ i is ⁇ lz ⁇ vanii in ⁇ aches ⁇ ve me ⁇ alla with uni ⁇ lya ⁇ n ⁇ y ⁇ v ⁇ dim ⁇ s ⁇ yu s ⁇ lava, s ⁇ de ⁇ zhascheg ⁇ ⁇ emni ⁇ , ele ⁇ liz tse- les ⁇ b ⁇ azn ⁇ ⁇ v ⁇ di ⁇ ⁇ echenie in 150 minutes the d ⁇ ⁇ mi ⁇ vaniya on eg ⁇ ⁇ ve ⁇ n ⁇ s ⁇ i ⁇ e ⁇ ami ⁇ i, s ⁇ de ⁇ zhaschey (w #): ⁇ S- ⁇ 1 2 0 3 - 4-0 -50; y- ⁇ 2 0 3 - 5 - 37; Z ' ⁇ ⁇ ⁇ ⁇ -8YU 2 -15-13 ⁇ a ⁇ e ⁇ isanie che ⁇ ezhey ⁇ further ⁇ edlagaem ⁇ e iz ⁇ b ⁇ e ⁇ enie ⁇ yasnyae ⁇ sya ⁇ n- ⁇ e ⁇ n
  • the metal being processed such as aluminum-containing ⁇
  • Other electrodes can be served by an electrically irreplaceable metal immersed in the bath, such as iron, or the bath itself, if it is made from the same metal.
  • an electrolyte they use an aqueous mixture of hemp 1-6 g / l (0.1-0.6 wt or an aqueous solution of alkali (0.1 - 0.6 bar,% ⁇ 0 ⁇ ) and silica (0.2 - 1.5 wt ⁇ a ⁇ sic).
  • ⁇ ⁇ - contrast ⁇ is ⁇ mi ⁇ dug ⁇ vye ⁇ az ⁇ yady ts ⁇ iv ⁇ dya ⁇ ⁇ ⁇ s ⁇ u n ⁇ v ⁇ - g ⁇ ⁇ ⁇ aches ⁇ vu ⁇ y ⁇ iya.
  • the process of its discharge is available throughout the entire voltage range before the weekly discharge of the microcircuit discharge: from 300 to 800V.
  • Aromatic oxidation for each combination of metal and electric is carried out in a separate range of voltage and current.
  • the modified layer of income is made up of two: external - soft, soft, internal and internal - not large, without a load.
  • the thickness of the internal layer changes due to a change in the frequency of the amplitude values of either the one or the other. With a decrease in the amplitude of the by-pass, the quantity of catalytic discharges and the thickness of the internal layer decrease.
  • the process is carried out for 30-300 minutes and with a pulsating positive and negative charge with a frequency of 50 Hz and a voltage of 300 pounds at a voltage of at least 300 times.
  • the density of the circuit is 3–100 ⁇ / d.
  • the optimum current density is 10-40 ⁇ / dm.
  • the thickness of the accredited layer depends on the operational density and time of processing.
  • the elec- tric control unit in the bath during the process may change from 20 to 90 ° C, the preferred temperature mode is 30-70 ° C. With a ratio of 1.3 ⁇ 3 - / ⁇ -. ⁇ 0.9
  • Anodic metal processing of metal makes sense. With a voltage of less than 300V and a circuit current of less than 3 ⁇ / d, there is only a mode of distortions, no arcing and arcing. ⁇ case, when the voltage is higher
  • the electric bathtub contained 1000 g of distilled water and 2 g of ⁇ 0 ⁇ .
  • the brothers were locked down below the level of the factory with the well-worn aluminum chip.
  • the process of modifying the production process lasted 120 minutes.
  • the sample with a modifiable accessory was washed and tapped in the process of air inlet.
  • the current loose layer was cleaned with abrasive paper.
  • the modified standardized black color makes for a special ceramic with a thickness of 200 microns. For example, 2.
  • Example 4 The method of amendment described in Example I is also used in the current method, except that an electric power consumption of 2 g / d was suspended. Example 4.
  • Example I The method of amendment described in Example I is also used in the current method, except that an electric power supply of 1000 g / d is not available. A higher concentration of electricity is available on a low-level external basis.
  • the outermost is the best-to-be-used layer.
  • - 9 The processing time is possible if you change the ratio of the amplitudes of the one and the other.
  • Example 5 it was only the case that they processed for 60 minutes a plate of aluminum alloy containing 4-6 $ of copper. Processes are indicated in the process indicated.
  • ⁇ a ⁇ ve ⁇ n ⁇ s ⁇ i ⁇ b ⁇ ab ⁇ ann ⁇ y ⁇ las ⁇ iny was s ⁇ - mi ⁇ vayaa ⁇ n ⁇ sl ⁇ ynaya ⁇ e ⁇ ami ⁇ a, s ⁇ de ⁇ zhaschaya (by weight): ⁇ (, - ⁇ 1 2 0 3 _ 60-85; ⁇ - ⁇ ⁇ ⁇ ⁇ - 27-13; Z ⁇ ⁇ ⁇ ⁇ • SiO 2 - 13 2.
  • the modified ceramics layer contains (mass $): ⁇ - ⁇ 1 2 0 3 - 0-50; ⁇ - ⁇ 1 2 0 3 - 45-37 ; ⁇ 1 2 0 3 * 310 2 _ -13-. Value 7.
  • a plate from an aluminum alloy containing $ 5-7 of magnesium was processed within 30 minutes, just as in the case of I.
  • the result of the processing was; the tokyo ceramics layer containing (mass) is formed: ⁇ . ⁇ ⁇ - 5 - 8 ; y - ⁇ 1 2 0 3 - 80 - 85; ⁇ ⁇ - 15 - 7.
  • Example 8 The following is an illustrative example of the effect of a change in the rate of the increase in the amplitude and output values on the processing time of the sample.
  • Example 8 The following is an illustrative example of the effect of a change in the rate of the increase in the amplitude and output values on the processing time of the sample.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

L'invention concerne un procédé consistant à produire par électrolyse un revêtement sur des métaux à conductivité unipolaire. A cet effet, une tension alternative asymétrique est appliquée aux électrodes, selon une séquence continue d'impulsions de courant électrique négatives et positives. L'électrolyte utilisée est une solution aqueuse d'un alcali ou d'un mélange d'alcali et de silicate de métal alcalin. Le choix de ces conditions d'électrolyse permet que les décharges à étincelles, créées par une tension particulière à la surface du métal, deviennent des décharges en micro-arcs et en arcs favorisant la formation d'un revêtement sous forme d'un matériau composite basé sur des phases solides d'oxyde céramique.
PCT/RU1993/000324 1993-12-29 1993-12-29 Procede de production d'un revetement sur des metaux a conductivite unipolaire WO1995018250A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RU96111550A RU2110623C1 (ru) 1993-12-29 1993-12-29 Способ получения покрытия на металлах с униполярной проводимостью
PCT/RU1993/000324 WO1995018250A1 (fr) 1993-12-29 1993-12-29 Procede de production d'un revetement sur des metaux a conductivite unipolaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU1993/000324 WO1995018250A1 (fr) 1993-12-29 1993-12-29 Procede de production d'un revetement sur des metaux a conductivite unipolaire

Publications (1)

Publication Number Publication Date
WO1995018250A1 true WO1995018250A1 (fr) 1995-07-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1993/000324 WO1995018250A1 (fr) 1993-12-29 1993-12-29 Procede de production d'un revetement sur des metaux a conductivite unipolaire

Country Status (2)

Country Link
RU (1) RU2110623C1 (fr)
WO (1) WO1995018250A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031303A1 (fr) * 1997-12-17 1999-06-24 Isle Coat Limited Procede permettant d'obtenir des revetements de protection durs sur des articles faits d'alliages d'aluminium
WO2001053570A1 (fr) * 2000-01-17 2001-07-26 Jury Removich Zalygin Enrobage ceramique a couches minces et procede de fabrication associe, surface de frottement formee sur l'enrobage ceramique a couches minces et procede de realisation de cette derniere
WO2001081658A1 (fr) * 2000-04-26 2001-11-01 Jacques Beauvir Procede electrolytique d'oxydation pour l'obtention d'un revêtement ceramique a la surface d'un metal
US6919012B1 (en) 2003-03-25 2005-07-19 Olimex Group, Inc. Method of making a composite article comprising a ceramic coating
KR100524045B1 (ko) * 2002-06-26 2005-10-27 주식회사 알파크린테크 마이크로 아크 산화 코팅용 자동 제어장치 및 그 방법

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2459890C1 (ru) * 2011-07-22 2012-08-27 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский технический университет (Новочеркасский политехнический институт)" Способ получения оптически черного оксидно-керамического покрытия на поверхности алюминия и его сплавах
RU2541246C1 (ru) * 2013-11-21 2015-02-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" Способ получения толстослойных износостойких покрытий методом микродугового оксидирования

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1200591A1 (ru) * 1982-07-07 1989-04-07 Институт Неорганической Химии Со Ан Ссср Способ нанесени покрытий на металлы и сплавы
SU1713990A2 (ru) * 1989-04-05 1992-02-23 Институт Неорганической Химии Со Ан Ссср Способ микродугового анодировани металлов и сплавов

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1200591A1 (ru) * 1982-07-07 1989-04-07 Институт Неорганической Химии Со Ан Ссср Способ нанесени покрытий на металлы и сплавы
SU1713990A2 (ru) * 1989-04-05 1992-02-23 Институт Неорганической Химии Со Ан Ссср Способ микродугового анодировани металлов и сплавов

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHERNENKO et al., "Poluchenie Pokrytii Anodro-iskrovym Elektrolizom", 1991, Khimiya, (Leningrad), pages 86, 102. *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031303A1 (fr) * 1997-12-17 1999-06-24 Isle Coat Limited Procede permettant d'obtenir des revetements de protection durs sur des articles faits d'alliages d'aluminium
US6365028B1 (en) 1997-12-17 2002-04-02 Isle Coat Limited Method for producing hard protection coatings on articles made of aluminum alloys
WO2001053570A1 (fr) * 2000-01-17 2001-07-26 Jury Removich Zalygin Enrobage ceramique a couches minces et procede de fabrication associe, surface de frottement formee sur l'enrobage ceramique a couches minces et procede de realisation de cette derniere
WO2001081658A1 (fr) * 2000-04-26 2001-11-01 Jacques Beauvir Procede electrolytique d'oxydation pour l'obtention d'un revêtement ceramique a la surface d'un metal
FR2808291A1 (fr) * 2000-04-26 2001-11-02 Mofratech Procede electrolytique d'oxydation pour l'obtention d'un revetement ceramique a la surface d'un metal
KR100524045B1 (ko) * 2002-06-26 2005-10-27 주식회사 알파크린테크 마이크로 아크 산화 코팅용 자동 제어장치 및 그 방법
US6919012B1 (en) 2003-03-25 2005-07-19 Olimex Group, Inc. Method of making a composite article comprising a ceramic coating

Also Published As

Publication number Publication date
RU2110623C1 (ru) 1998-05-10

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