WO2004029334A1 - Anodized frame comprising parts made of titanium materials - Google Patents
Anodized frame comprising parts made of titanium materials Download PDFInfo
- Publication number
- WO2004029334A1 WO2004029334A1 PCT/DE2003/003209 DE0303209W WO2004029334A1 WO 2004029334 A1 WO2004029334 A1 WO 2004029334A1 DE 0303209 W DE0303209 W DE 0303209W WO 2004029334 A1 WO2004029334 A1 WO 2004029334A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rivet
- clamping element
- din
- holding element
- titanium
- Prior art date
Links
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
-
- 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
- C25D11/005—Apparatus specially adapted for electrolytic conversion coating
Definitions
- Anodizing frame with components made of titanium materials is anodizing frame with components made of titanium materials
- the invention relates to an anodizing frame with components made of titanium materials and a 'method for producing or repairing such anodizing frames. Furthermore, the invention relates to clamping elements for such anodizing frames.
- anodizing frames are shown in a catalog of the applicant from summer 2002, the disclosure of which is referred to with regard to the design of anodizing frames.
- the procedure for use in anodizing objects is as follows. An object to be anodized is clamped between two resilient clamping elements. In this position, it is conductively connected to a central holding element, which in turn is connected to an electrode of a voltage source. The holding element with the object to be anodized is then introduced into an immersion bath, the other electrode of the voltage source being provided on the conductive pool material in which the immersion bath is located. By maintaining a current, metal ions are deposited on the surface of the object to be anodized.
- the known anodizing frames have the disadvantage that they have to be replaced regularly because the clamping elements show signs of fatigue. This results in high costs because the material required to replace the anodizing frame is very expensive. It is an object of the invention to provide an anodizing frame with which anodizing processes can be carried out more economically.
- an improved anodizing frame in which the clamping element is connected to the holding element via at least one thermally deformed rivet.
- the provision of a rivet connection makes it easy to replace individual clamping elements when they are tired or destroyed. All that is required is to remove the rivet, after which a new clamping element is riveted on.
- an integral or, for the most part, closed, positive connection is provided in the transition area between the rivet, the clamping element and the holding element.
- Such a connection ensures that no aggressive chemicals can penetrate into the transition area between the rivet, clamping element and holding element.
- dadurc 'a particularly long durability of the anodizing frame is achieved, in particular also after a repair in which a new clamping element is attached to the holding element.
- the holding element can have titanium of grade DIN 37.025, which is very economical. In deviation from this, the holding element can also have titanium of the DIN 37.035 type if higher costs are accepted.
- the clamping element is preferably made from high-strength titanium of the DIN 37.055 or DIN 37.065 type. Rapid fatigue of the clamping element can thereby be avoided. Titanium of grade DIN 37.065 is preferred because it makes it special Have well resilient clamping elements made that have elasticity.
- Titanium of the DIN 37.035 grade which has sufficient strength, is preferably used for the rivet.
- This titanium material can also be processed well in a hot riveting process, whereby there is a high resistance to unwanted burning during processing.
- titanium of other types such as e.g. B. DIN 37.025 can be used.
- DIN 37.055 or DIN 37.065 type is used for the rivet, there is increased strength, but there is an increased risk that the rivet burns when processed with a hot riveting process. This can be countered with a shorter warming time.
- the anodizing frame produced with a method according to the invention has a microsection in the transition area between the shaft of the rivet and the rivet hole in the holding element and in the clamping element macroscopically a cohesive connection.
- the naked eye has the impression that there is a uniform connection between the holding element, rivet and clamping element, which looks almost like a welded connection.
- a microstructural difference can be found between the shaft of the rivet, the rivet hole and / or the clamping element.
- an anodizing frame produced using the method according to the invention can be easily recognized, especially since both sides of the rivet have a rivet head.
- the clamping element or the holding element Around each rivet head, the clamping element or the holding element has an essentially circular impression in the Surface that comes from the head tool or rivet iron used to make the riveted joint.
- the clamping element has at least one rivet hole with a diameter of less than 5 mm and in particular from 2.5 mm to 4 mm.
- Such small holes in clamping elements were previously unknown.
- Clamping elements with holes larger than 5 mm are known in the prior art, which are provided for central welding with a titanium welding process.
- a particularly economical and sufficiently durable rivet connection can be produced with a rivet hole with a diameter of approx. 3.2 mm.
- the rivet is heated to a temperature of approximately 300 ° C. to 600 ° C., preferably to approximately 400 ° C. to 480 ° C., during the hot riveting.
- a particularly firm and reliable connection is obtained when the rivet is heated to a temperature of approx. 410 ° C to 450 ° C.
- the compressive stress in the longitudinal direction of the rivet is approximately 100 N / mm 2 to 200 N / mm 2 at least for a short period of time. A pressure of approximately 150 N / mm 2 is preferably generated.
- the pressure is advantageously maintained for a holding time of approximately 3 to 10 seconds Maintain a hold time of approximately 6 to 7 seconds in particular.
- the method according to the invention can be carried out particularly easily with an electric hot riveting method.
- the single figure shows a cross section through a portion 1 of an anodizing frame according to the invention.
- the anodizing frame 1 is divided into a central holding element 2, which in the present case is made up of a first holding element plate 3 and a second holding element plate 4.
- a first clamping element 5, a second clamping element 6, a third clamping element 7 and a fourth clamping element 8 are fastened to the holding element 2.
- a rivet hole 9 with a diameter of approximately 3.2 mm running through the components 3 to 7 is provided.
- a rivet 10 is inserted in the rivet hole 9 and has a lower rivet head 11 and an upper rivet head 12.
- a head tool 13 is attached in the area of the upper rivet head 12.
- a rivet 14 is provided in the area of the lower rivet head 11.
- the rivet 10 is made of grade 2 titanium.
- the first holding element plate 3 and the second holding element plate 4 are made of grade 1 titanium.
- the clamping elements 5-8 are made of grade 4 titanium.
- a metal socket 15 is clamped between the third clamping element 7 and the first clamping element 5, which is connected in this way for galvanization to the holding element 2, which in turn is connected to a pole in this source, not shown, is connected.
- the procedure for producing the anodizing frame ' 1 is as follows. First, the two holding element plates 3, 4 and the clamping elements 5 to 8 are arranged to one another as shown in the figure, the rivet 10 being inserted into the rivet hole 9. Between the rivet hole 9 and the rivet 10, a gap of approximately 0.1 mm to 0.3 mm, primarily due to production, is provided.
- the rivet 10 can have an already finished upper rivet head 12 when inserted into the rivet hole 9. In this state, the still undeformed shaft of the rivet 10 projects beyond the third clamping element 7 on the underside, the lower rivet head 11 shown in the figure not yet being produced. In deviation from this, the rivet 10 can also consist exclusively of the rivet shank in the state of insertion.
- the head tool 13 is then attached to the location of the upper rivet head 12.
- the rivet 14 is placed on the rivet shaft at the opposite end of the rivet 10.
- the head tool 13 and the rivet iron 14 are now subjected to an electrical voltage, as a result of which there is a current flow between the head tool 13, the rivet 10 and the rivet iron 14, which first rivets 10 and thereby the area of the anodizing frame 1 around the rivet 10 warmed around.
- the resulting current is adjusted so that the rivet 10 heats up to a temperature of approx. 410 ° C. to 450 ° C., a temperature of up to 480 ° C. being able to arise in the area of the rivet 10.
- the current flow can then be switched on a second time, the outer edge regions of the head tool 13 and the rivet iron 14 preferably touching the third clamping element 7 and the first clamping element 5.
- the electrical voltage between head tool 13 and rivet iron 14 is then switched off. After the rivet 10 has cooled, the head tool 13 and the rivet iron 14 are moved away from the holding element 2 and the rivet connection is established.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03770889A EP1546440A1 (en) | 2002-09-26 | 2003-09-26 | Anodized frame comprising parts made of titanium materials |
DE10393899T DE10393899D2 (en) | 2002-09-26 | 2003-09-26 | Anodizing frame with components made of titanium materials |
AU2003280294A AU2003280294A1 (en) | 2002-09-26 | 2003-09-26 | Anodized frame comprising parts made of titanium materials |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20214939.0 | 2002-09-26 | ||
DE20214939U DE20214939U1 (en) | 2002-09-26 | 2002-09-26 | Anodizing frame with components made of titanium materials |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004029334A1 true WO2004029334A1 (en) | 2004-04-08 |
Family
ID=29414412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/003209 WO2004029334A1 (en) | 2002-09-26 | 2003-09-26 | Anodized frame comprising parts made of titanium materials |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1546440A1 (en) |
AU (1) | AU2003280294A1 (en) |
DE (2) | DE20214939U1 (en) |
WO (1) | WO2004029334A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016103224U1 (en) | 2016-02-02 | 2017-05-03 | Frank Fischer | Holding device for anodizing workpieces |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110561308A (en) * | 2019-10-12 | 2019-12-13 | 三能器具(无锡)有限公司 | Special auxiliary fixture for cake mould titanium plating |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3878356A (en) * | 1973-09-27 | 1975-04-15 | Cleveland E Roye | Diffusion band riveting method |
US4233149A (en) * | 1979-02-14 | 1980-11-11 | Mitsubishi Kinzoku Kabushiki Kaisha | Anode support member |
US4522696A (en) * | 1982-04-14 | 1985-06-11 | Alcan International Limited | Carrier for material during electrolytic finishing |
EP0564151A2 (en) * | 1992-04-01 | 1993-10-06 | Gould Electronics Inc. | Drum cathode for use in the production of metal foils and a method of producing the same |
JPH10226900A (en) * | 1997-02-14 | 1998-08-25 | Nippon Light Metal Co Ltd | Pretreatment of titanium jig and method for electrolytically coloring aluminum |
-
2002
- 2002-09-26 DE DE20214939U patent/DE20214939U1/en not_active Expired - Lifetime
-
2003
- 2003-09-26 AU AU2003280294A patent/AU2003280294A1/en not_active Abandoned
- 2003-09-26 WO PCT/DE2003/003209 patent/WO2004029334A1/en not_active Application Discontinuation
- 2003-09-26 DE DE10393899T patent/DE10393899D2/en not_active Expired - Fee Related
- 2003-09-26 EP EP03770889A patent/EP1546440A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3878356A (en) * | 1973-09-27 | 1975-04-15 | Cleveland E Roye | Diffusion band riveting method |
US4233149A (en) * | 1979-02-14 | 1980-11-11 | Mitsubishi Kinzoku Kabushiki Kaisha | Anode support member |
US4522696A (en) * | 1982-04-14 | 1985-06-11 | Alcan International Limited | Carrier for material during electrolytic finishing |
EP0564151A2 (en) * | 1992-04-01 | 1993-10-06 | Gould Electronics Inc. | Drum cathode for use in the production of metal foils and a method of producing the same |
JPH10226900A (en) * | 1997-02-14 | 1998-08-25 | Nippon Light Metal Co Ltd | Pretreatment of titanium jig and method for electrolytically coloring aluminum |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13 30 November 1998 (1998-11-30) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016103224U1 (en) | 2016-02-02 | 2017-05-03 | Frank Fischer | Holding device for anodizing workpieces |
Also Published As
Publication number | Publication date |
---|---|
AU2003280294A1 (en) | 2004-04-19 |
EP1546440A1 (en) | 2005-06-29 |
DE10393899D2 (en) | 2005-08-25 |
DE20214939U1 (en) | 2003-10-30 |
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