DE473919C - Manufacture of a particularly strong metal leaf substitute - Google Patents

Manufacture of a particularly strong metal leaf substitute

Info

Publication number
DE473919C
DE473919C DEC34693D DEC0034693D DE473919C DE 473919 C DE473919 C DE 473919C DE C34693 D DEC34693 D DE C34693D DE C0034693 D DEC0034693 D DE C0034693D DE 473919 C DE473919 C DE 473919C
Authority
DE
Germany
Prior art keywords
particularly strong
manufacture
metal leaf
strong metal
substitute
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
Application number
DEC34693D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemische Fabrik Von Heyden AG
Original Assignee
Chemische Fabrik Von Heyden AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chemische Fabrik Von Heyden AG filed Critical Chemische Fabrik Von Heyden AG
Priority to DEC34693D priority Critical patent/DE473919C/en
Application granted granted Critical
Publication of DE473919C publication Critical patent/DE473919C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Description

Herstellung eines besonders festen Blattmetallersatzes Es ist bekannt, daß, man durch Aufsprühen oder Auftragen von Mischungen von Celluloseesterlösungen und Bronzepulver auf rotierende, beheizte Walzen, endlose Bänder oder ähnliche Vorrichtungen und gleichmäßiges Abziehen Blattmetallersatz; in Form beliebig langer Bänder herstellen kann. Es wurde gefunden, daß die Festigkeit solchen Blattmetallersatzes wesentlich erhöht wird, wenn man das Lösungsmittel möglichst langsam und bei niederer Temperatur verdunsten läßt. Dies wird dadurch erzielt, daß man die Temperatur der rotierenden Unterlage etwa 25' und mehr unter dem Siedepunkt des Celluloseesterlösungsmittels hält und die Ab- zugsgeschwindigkeit möglichst niedrig, d.h. unter etwa 5 5 m in der Stunde wählt.Production of a particularly strong leaf metal replacement It is known that, by spraying or applying mixtures of cellulose ester solutions and bronze powder onto rotating, heated rollers, endless belts or similar devices and uniformly pulling off, leaf metal replacement; in the form of ribbons of any length. It has been found that the strength of such leaf metal substitutes is substantially increased if the solvent is allowed to evaporate as slowly as possible and at a low temperature. This is achieved by maintaining the temperature of the rotating pad about 25 'and more below the boiling point of the Celluloseesterlösungsmittels and the waste zugsgeschwindigkeit as low as possible, that is, below about 5 m 5 selects an hour.

Das neue- Verfahren gestattet, einen im Aussehen besonders gleichmäßigen Blattmetallersatz herzustellen. Besonders gelingt es, eine bessere Bronzedeckung zu erzielen und den Bronzeverbrauch herabzusetzen. Der Blattmetallersatz gewinnt auth hierdurch an Festigkeit.The new process allows a particularly uniform in appearance Manufacture sheet metal substitutes. It is particularly possible to achieve a better bronze cover and reduce bronze consumption. The leaf metal replacement wins auth thereby in strength.

Beispiel Blattmetallersatz wurde hergestellt durch Auftragen eines Breies aus Bronzepulver und Acetyleelluloselösung auf eine bewegliche Unterlage, die sich mit einer Geschwindigkeit von 55 m in der Stunde fortbewegte. Die Temperatur dabei wurde auf 35' gehalten. In einem zweiten VeTsulch wurde die Geschwindigkeit der Unterlagen unter sonst gleichen Bedingungen auf iom in der Stunde und die Temperatur auf 2o' ermäßigt. Die Festigkeit des beim ersten Versuch erhaltenen Blattmetallersatzes verhielt sich zur Festigkeit des beim zweiten Versuch gewonnenen wie 5-6 zu 16-17.Example Leaf metal substitute was produced by applying a slurry of bronze powder and acetyl-cellulose solution to a movable surface that moved at a speed of 55 m per hour. The temperature was kept at 35 ' . In a second VeTsulch, the speed of the documents was reduced to 10 minutes per hour and the temperature to 20 minutes, all other things being equal. The strength of the leaf metal substitute obtained in the first attempt was related to the strength of that obtained in the second attempt as 5-6 to 16-17.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines besonders festen Blattmetallersatzes durch Aufsprühen oder Auftragen von Mischungen von Celluloseesterlösungen und Bronzepulver in äußenst dünner Schicht auf bewegliche Unterlagen, dadurch gekennzeichnet, daß das Aufbringen der Masse und Verdunsten11assen. des Lösungsmittels bei Temperaturen, die mindestens 250 unter dem Siedepunkt desselben liegen, und bei Abzugsgeschwindigkeiten, geringer als 55m in der Stunde, vorgenommen wird. PATENT CLAIM: Process for the production of a particularly strong leaf metal substitute by spraying or applying mixtures of cellulose ester solutions and bronze powder in an extremely thin layer on movable substrates, characterized in that the mass can be applied and evaporated. of the solvent at temperatures which are at least 250 below its boiling point and at take-off speeds of less than 55 m per hour.
DEC34693D 1924-04-03 1924-04-03 Manufacture of a particularly strong metal leaf substitute Expired DE473919C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC34693D DE473919C (en) 1924-04-03 1924-04-03 Manufacture of a particularly strong metal leaf substitute

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC34693D DE473919C (en) 1924-04-03 1924-04-03 Manufacture of a particularly strong metal leaf substitute

Publications (1)

Publication Number Publication Date
DE473919C true DE473919C (en) 1929-03-23

Family

ID=7021443

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC34693D Expired DE473919C (en) 1924-04-03 1924-04-03 Manufacture of a particularly strong metal leaf substitute

Country Status (1)

Country Link
DE (1) DE473919C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885800C (en) * 1948-10-02 1953-08-06 Ver Korkindustrie Ag Process for the production of insulating bodies from foils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885800C (en) * 1948-10-02 1953-08-06 Ver Korkindustrie Ag Process for the production of insulating bodies from foils

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