CH122606A - Process for the production of printing types. - Google Patents
Process for the production of printing types.Info
- Publication number
- CH122606A CH122606A CH122606DA CH122606A CH 122606 A CH122606 A CH 122606A CH 122606D A CH122606D A CH 122606DA CH 122606 A CH122606 A CH 122606A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- die
- printing types
- way
- wear resistance
- Prior art date
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
Verfahren zur Herstellung von Druelitypeno Gemäss der Erfindung werden Drucktypen dadurch hergestellt, dass man ein Metall in eine Matrize derart einbringt, dass die feinsten Einzelheiten der Matrize ausgefüllt werden, und dass das Gefüge des so hergestellten Formstückes zur Erhöhung des Abnutzungs widerstandes durch Einpressen in die Form verdichtet wird.
Das Verfahren kommt mit Vorteil zur Anwendung bei der Herstellung von Druck stöcken, Typenrädern und Typentrommeln für Rechen- und ähnliche 1' asohinen, die ohne sich merklich abzunutzen, eine grosse Anzahl von Arbeitsgängen aushalten müssen. Die Herstellung derartiger Typen bereitete bisher Schwierigkeiten, da es mit dem bisher üblichen Verfahren nicht gelang, Typen mit grossem Abnutzungswiderstande anzufertigen.
Man kann zwar durch Spritzguss, auf galva nischem Wege oder durch eiri Kaltspritzver- fahren (Schoop, Metalisator) eine Type her stellen, in der sich alle Feinheiten der Matrize wiederfinden, aber die für .diese Ver- fahren verwendbaren Metalle sind verhältnis mässig weich, besitzen also nur einen geringen Abnutzungswiderstand.
Es ist zwar bereits vorgeschlagen worden, zur Herstellung von Stempeln die auf ge wöhnlichem Wege gegossene Type in die Matrize einzupressen, aber dieses Verfahren erfüllt wiederum nur eine Bedingung, nämlich die Erzielung eines hohen Abnutzungswider standes, während die andere Bedingung, nämlich die Herausarbeitung aller Feinheiten der Matrize, unerfüllt bleibt. Erst die Er füllung beider Bedingungen, nämlich der Abformung aller Feinheiten der Matrize im fertigen Stück, und der nachträglichen Ver festigung des Gefüges, zum Beispiel durch Einwalzen oder Einpressen des fertigen Stückes in die Matrize, ergibt eine Drucktype, die allen Anforderungen genügt.
Process for the production of Druelitypeno According to the invention, printing types are produced by inserting a metal into a die in such a way that the finest details of the die are filled, and that the structure of the molded piece produced in this way is pressed into the mold to increase the wear resistance is compressed.
The method is used with advantage in the production of printing blocks, type wheels and type drums for calculators and similar 1 'asohinen, which must withstand a large number of operations without noticeably wear. The production of such types has hitherto caused difficulties, since it was not possible to produce types with high wear resistance using the previously customary method.
It is possible to produce a type by injection molding, by electroplating or by a cold spray process (Schoop, Metalizer) in which all the fine details of the die can be found, but the metals that can be used for these processes are relatively soft, thus have only a low wear resistance.
It has already been proposed to press the type cast in the usual way into the die for the production of stamps, but this method again only fulfills one condition, namely achieving a high level of wear resistance, while the other condition, namely working out all the subtleties the die, remains unfulfilled. Only when both conditions are met, namely the molding of all the fineness of the die in the finished piece, and the subsequent consolidation of the structure, for example by rolling or pressing the finished piece into the die, results in a printing type that meets all requirements.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE122606X | 1925-12-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH122606A true CH122606A (en) | 1927-12-16 |
Family
ID=5657448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH122606D CH122606A (en) | 1925-12-04 | 1926-11-17 | Process for the production of printing types. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH122606A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2463679A1 (en) * | 1979-08-17 | 1981-02-27 | Pitney Bowes Gmbh | METHOD AND DEVICE FOR FORMING CHARACTERS FOR ESTAMPER MACHINES |
-
1926
- 1926-11-17 CH CH122606D patent/CH122606A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2463679A1 (en) * | 1979-08-17 | 1981-02-27 | Pitney Bowes Gmbh | METHOD AND DEVICE FOR FORMING CHARACTERS FOR ESTAMPER MACHINES |
DE2933390C2 (en) * | 1979-08-17 | 1981-09-17 | Pitney Bowes Deutschland Gmbh, 6148 Heppenheim | Method and apparatus for forming types for embossing machines or the like. |
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