DE453010C - Process for detaching electrolytically deposited metal from molds made of ferrochrome or chrome steel alloy - Google Patents
Process for detaching electrolytically deposited metal from molds made of ferrochrome or chrome steel alloyInfo
- Publication number
- DE453010C DE453010C DEH102294D DEH0102294D DE453010C DE 453010 C DE453010 C DE 453010C DE H102294 D DEH102294 D DE H102294D DE H0102294 D DEH0102294 D DE H0102294D DE 453010 C DE453010 C DE 453010C
- Authority
- DE
- Germany
- Prior art keywords
- ferrochrome
- deposited metal
- detaching
- steel alloy
- molds made
- 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.)
- Expired
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
- C25D1/00—Electroforming
- C25D1/20—Separation of the formed objects from the electrodes with no destruction of said electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Electrolytic Production Of Metals (AREA)
Description
Bei der elektrischen Niederschlagung von Metallen in Gestalt von Röhren oder Blechen ist es üblich, auf dem Dorn oder auf der Form, auf welcher das niedergeschlagene Metall anwachsen soll, einen Überzug vorzusehen, welcher leicht durch Schmelzen von der Unterlage abgehoben werden kann. Gewöhnlich benutzt man als Überzug Blei oder mit Graphit imprägniertes Wachs, und nachIn the electrical deposition of metals in the form of tubes or sheets it is customary on the mandrel or on the mold on which the deposited metal to grow to provide a coating which can easily be melted by the document can be lifted off. Usually lead or lead is used as a coating wax impregnated with graphite, and after
ίο Beendigung der Niederschlagung wird der Dorn oder die Form in einem Ofen erhitzt, um den Überzug zu schmelzen, so daß das Rohr oder das Blech vom Dorn oder der Form abgezogen werden kann. Diese Arbeitsweise verursacht jedoch Kosten und ist nicht selten auch die Ursache für Fehlergebnisse. ίο termination of the crackdown will be the The mandrel or mold is heated in an oven to melt the coating so that the Pipe or sheet metal can be pulled off the mandrel or the mold. This way of working However, it causes costs and is not infrequently also the cause of error results.
Auch im allgemeinen ist bereits die Erhitzung vorgeschlagen, um die Loslösung eines elektrolytischen Niederschlages von der Unterlage zu erleichtern. In vielen Fällen reicht jedoch die Erhitzung allein noch nicht aus, ein glattes und schnelles Loslösen zu bewirken.In general, too, heating has already been suggested for the purpose of detachment to facilitate electrolytic deposition from the substrate. In many cases however, the heating alone is not enough for a smooth and quick release cause.
Man hat auch schon vorgeschlagen, den Dorn oder die Form aus gut poliertem Ferrochrom herzustellen, welches als Kathode für das niederzuschlagende Metall dient. Indessen verursacht das Abstreifen des Nieder-Schlages von einem Dorn, bei welchem ein röhrenförmiger Niederschlag entsteht, große Schwierigkeiten. Die Beseitigung dieses Übelstandes bildet den Gegenstand der Erfindung.It has also been suggested that the mandrel or the mold be made of well-polished ferrochrome to produce, which serves as a cathode for the metal to be deposited. In the meantime causes large amounts of precipitate to be stripped off a mandrel, which forms a tubular precipitate Trouble. The elimination of this drawback forms the subject of the invention.
Es wurde gefunden, daß, wenn man nach beendigter Niederschlagung des Metalls auf der Ferrochromunterlage das Werkstück in einem Glühofen einige Zeit bei hoher Temperatur erhitzt und alsdann das Werkstück plötzlich durch Eintauchen in kaltes Wasser oder eine andere Kühlflüssigkeit abschreckt, das niedergeschlagene Metall sich leicht von der Form ablöst. Durch die Erhitzung dehnt sich der niedergeschlagene Formling etwas aus, ohne sich durch die plötzliche Abschrekkung wieder zusammenzuziehen, wodurch sich die leichte Ablösung des niedergeschlagenen Formlings erklärt.It has been found that when after the precipitation of the metal has ended the ferrochrome base the workpiece in an annealing furnace for some time at a high temperature heated and then suddenly the workpiece by immersion in cold water or another coolant deterrent, the deposited metal is easily removed from the Form. As a result of the heating, the knocked down molding stretches a little without contracting again due to the sudden deterrent, whereby the easy detachment of the knocked-down molding explains.
Die Gestalt der Formen kann natürlich beliebig sein und hängt von den Erfordernissen ab.The shape of the forms can of course be any and depends on the requirements away.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17715/24A GB239977A (en) | 1924-07-24 | 1924-07-24 | Improvements relating to the electro deposition of metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE453010C true DE453010C (en) | 1927-11-26 |
Family
ID=10099935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEH102294D Expired DE453010C (en) | 1924-07-24 | 1925-06-16 | Process for detaching electrolytically deposited metal from molds made of ferrochrome or chrome steel alloy |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1709268A (en) |
| DE (1) | DE453010C (en) |
| FR (1) | FR599777A (en) |
| GB (1) | GB239977A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433441A (en) * | 1947-12-30 | Electrolytic production of thin | ||
| US2443756A (en) * | 1942-12-26 | 1948-06-22 | Brush Dev Co | Magnetic material |
| US2425919A (en) * | 1943-07-28 | 1947-08-19 | Cutler Hammer Inc | Method of making metal molding material |
| US2613178A (en) * | 1946-01-19 | 1952-10-07 | Us Rubber Co | Method of electroforming seamless tubes |
| US2636849A (en) * | 1946-12-13 | 1953-04-28 | Us Sec War | Method of electroforming gun barrels and liners |
| US2646396A (en) * | 1949-03-17 | 1953-07-21 | Reginald S Dean | Method of making electroformed articles |
| US2758950A (en) * | 1953-06-29 | 1956-08-14 | John F Lakner | Process for producing steel by electro-forming and carburization |
| US2879209A (en) * | 1955-08-02 | 1959-03-24 | Camin Lab Inc | Electroforming system |
| US3954568A (en) * | 1970-01-30 | 1976-05-04 | Xerox Corporation | Electroforming an endless flexible seamless xerographic belt |
| EP0009360B2 (en) * | 1978-09-13 | 1991-03-20 | Drg (Uk) Limited | Manufacture of printing sleeves |
| US4501646A (en) * | 1984-06-25 | 1985-02-26 | Xerox Corporation | Electroforming process |
-
1924
- 1924-07-24 GB GB17715/24A patent/GB239977A/en not_active Expired
-
1925
- 1925-06-16 DE DEH102294D patent/DE453010C/en not_active Expired
- 1925-06-18 FR FR599777D patent/FR599777A/en not_active Expired
- 1925-06-30 US US40695A patent/US1709268A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB239977A (en) | 1925-09-24 |
| US1709268A (en) | 1929-04-16 |
| FR599777A (en) | 1926-01-20 |
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