EP1292725A1 - Verfahren zur herstellung von erzeugnissen - Google Patents
Verfahren zur herstellung von erzeugnissenInfo
- Publication number
- EP1292725A1 EP1292725A1 EP01984036A EP01984036A EP1292725A1 EP 1292725 A1 EP1292725 A1 EP 1292725A1 EP 01984036 A EP01984036 A EP 01984036A EP 01984036 A EP01984036 A EP 01984036A EP 1292725 A1 EP1292725 A1 EP 1292725A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- coating
- nozzle
- workpieces
- nozzle element
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title description 7
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims abstract description 10
- 239000012670 alkaline solution Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 150000002739 metals Chemical class 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001962 electrophoresis Methods 0.000 claims abstract description 4
- 238000007745 plasma electrolytic oxidation reaction Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 230000000996 additive effect Effects 0.000 claims abstract 2
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 229910000737 Duralumin Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- HIMLGVIQSDVUJQ-UHFFFAOYSA-N aluminum vanadium Chemical compound [Al].[V] HIMLGVIQSDVUJQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 2
- -1 aluminum manganese Chemical compound 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 230000004927 fusion Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000012799 electrically-conductive coating Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- C25D11/26—Anodisation of refractory metals or alloys based thereon
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
Definitions
- the invention relates to a process for the manufacture of products, in particular decorative and others, with a coating applied to them.
- a method for manufacturing products e.g. Workpieces consisting of valve metals or their alloys and the subsequent application of a coating by means of micro-arc oxidation or electrophoresis in alkaline solution with the addition of additives (SU 9260084, 07.05.82).
- This method has the following disadvantages: 1. When machining the workpieces in the trough, the uneven distribution of the electromagnetic force field on the surface of a workpiece with a complicated shape has a negative effect on the quality of the coating. For this reason, the process of applying the coating to the hidden and shaded, i.e. poorly accessible parts of the workpieces very slowly or not at all. 2.
- the process control in the tub is associated with an unproductively large expenditure of electrical energy, especially in the case of machining local parts of the workpieces.
- the processing of workpieces with complex technology requires protection of the parts that are not subject to processing. It is also necessary to constantly mix the solution, which leads to a disorderly penetration of the particles into the burning zone of the micro arc.
- the invention has for its object to provide a method with which an increase in the quality of the products and an increase in productivity of the work can be achieved.
- This object is achieved by placing a nozzle element at a distance of 5-15 mm from the zone of the surface of the workpiece to be machined before the coating is applied. is brought, the nozzle cross section is selected depending on the nature of the part of the workpiece surface to be machined.
- By feeding the alkaline solution through the nozzle element it is possible to close the cathode-anode electrical circuit by means of the uninterrupted and positively targeted and / or self-draining solution jet to avoid additional cooling of the workpieces and to ensure that the coating melts through all its depth.
- the powdery components and / or the ultra-disperse powders necessary with regard to the chemical composition are used as additives.
- the nozzle element is moved continuously along the entire surface to be machined at a speed of not more than 25 mm / min with a temporary isolation of individual parts of the workpiece.
- Aluminum and titanium or their alloys such as e.g. Duraluminium 1, duraluminium hard, aluminum magnesium, AlMn (aluminum manganese) alloy rods based on titanium, A1V (aluminum vanadium) alloys based on titanium can be used.
- Disperse powder - AI, Ti and Mg can be used.
- a nozzle element When machining surface areas of workpieces with a rectangular shape, a nozzle element is preferably used, the nozzle cross section of which has a rectangular shape.
- the formation process of the coating is not intensified by means of a random (accidental) impact of the powder particles of the powder in the micro-arc. Burning zone, but by means of the targeted electricity.
- Micro-arc discharge causes a large increase in the current, by increasing the electron conductivity.
- Example 1 The workpiece is installed and started on an electromechanical lathe (not shown).
- the alkaline solution is automatically (or inevitably) directed onto the surface of the workpiece to be machined by the nozzle element.
- Voltage is applied between the workpiece and the nozzle.
- the end of the cathode-anode electrical circuit passes through the emerging beam of the solution.
- the solution can be given simultaneously through one or more nozzles, depending on the
- the solution can contain the ultra-disperse powders necessary with regard to the chemical composition.
- the constant concentration of the powder in the solution is maintained in that powder through the Powder dosing device can be added.
- Example 2 It is required to get a wear-resistant decorative coating on the right-angled part on a flat workpiece (plate) made of the alloy AlMg 2 .
- the insulating conductor (conductor) with the opening with respect to the rectangular part was manufactured.
- the nozzle element for the supply of the alkaline solution is placed at a distance of 10 mm from the surface to be machined and firmly anchored on the mechanism for the displacement of the nozzle element.
- the adjustment was made parallel to the processing surface with different speeds, which were given in table 2.
- the diameter of the outlet opening of the nozzle is significantly less than the width of the part to be machined. Therefore, the nozzle is moved in one pass along the length of the part, then across the width at a distance of 0.9 from the diameter of the nozzle, again offset across the length of the part.
- the example in question shows the possibility of obtaining the coating on a single one
- the method of manufacturing the products in this way increases the quality of the products and the labor productivity.
- the method according to the invention can of course also be applied to other materials, e.g. Metals or alloys in general, provided that a circuit can be closed between them and the nozzle. If necessary, this can be done by an electrically conductive coating of the workpiece.
- the invention can be used, for example, in the manufacture of products made from valve metals and their alloys. Table 1:
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Formation And Processing Of Food Products (AREA)
- Powder Metallurgy (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2000115910 | 2000-06-21 | ||
RU2000115910/12A RU2166434C1 (ru) | 2000-06-21 | 2000-06-21 | Способ изготовления изделий |
PCT/AT2001/000015 WO2001098562A1 (de) | 2000-06-21 | 2001-01-22 | Verfahren zur herstellung von erzeugnissen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1292725A1 true EP1292725A1 (de) | 2003-03-19 |
EP1292725B1 EP1292725B1 (de) | 2007-03-07 |
Family
ID=20236443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01984036A Expired - Lifetime EP1292725B1 (de) | 2000-06-21 | 2001-01-22 | Verfahren zur herstellung von erzeugnissen |
Country Status (10)
Country | Link |
---|---|
US (1) | US20040026247A1 (de) |
EP (1) | EP1292725B1 (de) |
AT (1) | ATE356232T1 (de) |
AU (1) | AU2001228172A1 (de) |
CA (1) | CA2411825A1 (de) |
DE (1) | DE50112162D1 (de) |
HU (1) | HUP0301662A2 (de) |
RU (1) | RU2166434C1 (de) |
SK (1) | SK18202002A3 (de) |
WO (1) | WO2001098562A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8277626B2 (en) * | 2010-06-11 | 2012-10-02 | Ppg Industries Ohio, Inc. | Method for depositing an electrodepositable coating composition onto a substrate using a plurality of liquid streams |
CN103233219B (zh) * | 2013-03-22 | 2015-06-03 | 常州大学 | 一种制备金属TiN陶瓷涂层的工艺方法 |
CN110904488B (zh) * | 2019-12-09 | 2021-08-10 | 湖南湘投金天科技集团有限责任公司 | 一种微弧氧化方法及采用此方法所得钛合金结构件 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7001486A (de) * | 1970-02-03 | 1971-08-05 | ||
BR7608760A (pt) * | 1976-06-07 | 1978-07-25 | Standard Chem Co Inc | Processo e aparelho para revestir eletroforeticamente um superficie de uma peca |
US5720866A (en) * | 1996-06-14 | 1998-02-24 | Ara Coating, Inc. | Method for forming coatings by electrolyte discharge and coatings formed thereby |
-
2000
- 2000-06-21 RU RU2000115910/12A patent/RU2166434C1/ru not_active IP Right Cessation
-
2001
- 2001-01-22 CA CA002411825A patent/CA2411825A1/en not_active Abandoned
- 2001-01-22 HU HU0301662A patent/HUP0301662A2/hu unknown
- 2001-01-22 SK SK1820-2002A patent/SK18202002A3/sk unknown
- 2001-01-22 DE DE50112162T patent/DE50112162D1/de not_active Expired - Fee Related
- 2001-01-22 US US10/311,809 patent/US20040026247A1/en not_active Abandoned
- 2001-01-22 EP EP01984036A patent/EP1292725B1/de not_active Expired - Lifetime
- 2001-01-22 WO PCT/AT2001/000015 patent/WO2001098562A1/de active IP Right Grant
- 2001-01-22 AT AT01984036T patent/ATE356232T1/de not_active IP Right Cessation
- 2001-01-22 AU AU2001228172A patent/AU2001228172A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0198562A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2001228172A1 (en) | 2002-01-02 |
RU2166434C1 (ru) | 2001-05-10 |
CA2411825A1 (en) | 2001-12-27 |
ATE356232T1 (de) | 2007-03-15 |
HUP0301662A2 (en) | 2003-08-28 |
WO2001098562A1 (de) | 2001-12-27 |
EP1292725B1 (de) | 2007-03-07 |
SK18202002A3 (sk) | 2003-09-11 |
US20040026247A1 (en) | 2004-02-12 |
DE50112162D1 (de) | 2007-04-19 |
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