DE301923C - - Google Patents
Info
- Publication number
- DE301923C DE301923C DENDAT301923D DE301923DA DE301923C DE 301923 C DE301923 C DE 301923C DE NDAT301923 D DENDAT301923 D DE NDAT301923D DE 301923D A DE301923D A DE 301923DA DE 301923 C DE301923 C DE 301923C
- Authority
- DE
- Germany
- Prior art keywords
- sheet metal
- cut
- sheet
- cutting sheet
- line
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000866 electrolytic etching Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229910000990 Ni alloy Inorganic materials 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Description
KAISERLICHES..IMPERIAL ..
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft ein Verfahren, Bleche nach Linienzügen zu durchschneiden und ist besonders geeignet, die spiral- und zickzackförmigen Bänder für elektrische Heizwiderstände auszuschneiden, was sonst wegen der großen Härte und Sprödigkeit mancher Widerstandsmetalle schwierig ist.The invention relates to a method of cutting through metal sheets according to lines and is Particularly suitable, the spiral and zigzag strips for electrical heating resistors cut out what else because of the great hardness and brittleness of some resistance metals is difficult.
Das Verfahren besteht in der Anwendung der an sich bekannten elektrolytischen Ätzung.The method consists in the use of electrolytic etching, which is known per se.
ip Dieselbe wird aber nicht nur bis zur Einätzung eines Musters, sondern bis zum Durchschneiden des Bleches durchgeführt. Im übrigen verfährt man, wie es bei der elektrolytischen Ätzung üblich ist. Das Blech wird mitip The same is not just up to the assessment of a pattern, but carried out until the sheet metal was cut through. Furthermore proceed as is customary with electrolytic etching. The sheet is with
!5 einem nichtleitenden Überzug versehen, und in diesen wird die einzuschneidende Linie eingezeichnet, so daß das Blech längs'dieses Linienzuges freiliegt. Das Blech wird dann als Elektrode in ein elektrolytisches Bad eingehängt und die elektrischen Verhältnisse so gewählt, daß das Metall des Bleches in Lösung geht, und zwar, da nur längs des eingezeichneten Linienzuges eine Berührung zwischen Blech und Bad stattfindet, ausschließlich längs dieser Linie. Auf die Weise wird das Blech entsprechend der eingezeichneten Linie durchschnitten. Zu den brauchbarsten metallischen Widerständen gehören Legierungen aus Chrom und Nickel. Durch Versuche hat sich ergeben, daß bei dieser Legierung das Verfahren keine scharfen, glatten Schnitte ergibt. Solche gelingen aber in hinreichendem Grade bei Anwendung von Wechselstrom geeigneter Periodenzahl. Ein Bad aus Schwefelsäure von i,2o° Be hat sich hierbei als am besten geeignet erwiesen.! 5 provided with a non-conductive coating, and in The line to be cut is drawn in so that the sheet metal runs along this line of lines exposed. The sheet is then hung in an electrolytic bath as an electrode and the electrical conditions are chosen so that the metal of the sheet is in solution goes, namely, because there is only a contact between the drawn lines Sheet metal and bath takes place exclusively along this line. That way the sheet becomes cut through according to the drawn line. Among the most useful metallic ones Resistors include alloys of chrome and nickel. Experiments have shown that with this alloy the process does not produce sharp, smooth cuts. Such succeed but to a sufficient degree when using alternating current of a suitable number of periods. A bath of sulfuric acid at 120 ° Be has proven to be the most suitable proven.
Claims (3)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE301923C true DE301923C (en) |
Family
ID=555761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT301923D Active DE301923C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE301923C (en) |
-
0
- DE DENDAT301923D patent/DE301923C/de active Active
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