DE438357C - Manufacture of molds for cutting sheet metal - Google Patents

Manufacture of molds for cutting sheet metal

Info

Publication number
DE438357C
DE438357C DEV20045D DEV0020045D DE438357C DE 438357 C DE438357 C DE 438357C DE V20045 D DEV20045 D DE V20045D DE V0020045 D DEV0020045 D DE V0020045D DE 438357 C DE438357 C DE 438357C
Authority
DE
Germany
Prior art keywords
molds
manufacture
sheet metal
cutting sheet
leaf
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
DEV20045D
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.)
CHEM PHARM FABRIK GmbH
VIVIDA CIE
Original Assignee
CHEM PHARM FABRIK GmbH
VIVIDA CIE
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 CHEM PHARM FABRIK GmbH, VIVIDA CIE filed Critical CHEM PHARM FABRIK GmbH
Priority to DEV20045D priority Critical patent/DE438357C/en
Application granted granted Critical
Publication of DE438357C publication Critical patent/DE438357C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Description

Herstellung von Formen zum Dünnschlagen von Blattmetallen. In der Blattgold- und Blattmetallschlägerei spielen die Formen eine bedeutende Rolle, denn nur mit ihrer Hilfe ist es möglich, die Metalle zti der erforderlichen Dünne auszuschlagen.Manufacture of molds for thinning sheet metals. In the Gold leaf and metal leaf brawls, shapes play an important role, because only with their help is it possible to knock out the metals to the required thinness.

Diese Formen bestehen aus Lagen von etwa i3oo bis i5oo Blättern, meist 13 bis 17 cm im Quadrat, aus Pergament, Goldschlägerhäutchen oder Papier; zwischen je zwei solcher Blätter wird ein bereits ausgewalztes oder vorgeschlagenes Metallblatt oder Gold gelegt und mit Hand- oder Federhaminer dünn geschlagen.These forms consist of layers of about 130 to 150 leaves, usually 13 to 17 cm square, made of parchment, gold bat skin or paper; Between every two such sheets an already rolled out or proposed metal sheet or gold is placed and beaten thin with a hand or feather hammer.

Als Material zu diesen Formen wurden früher neben dünnem Pergament, das nur geringen Ansprüchen genügen konnte, ausschließlich Goldschlägerhäutchen benutzt.As a material for these forms, in addition to thin parchment, that could only meet minor requirements, exclusively gold bat skin used.

Die Verarbeitung dieser schleim- und fetthaltigen hygroskopischen ungleich dicken, oft durchlöcherten und verschieden langen Häutchen ist ungemein umständlich und wegen des nahezu 5oprozentigen Abfalles auch recht kostspielig.The processing of these mucous and fatty hygroscopic Skin of unequal thickness, often perforated and of different lengths, is uncommon cumbersome and also quite expensive because of the almost 5% waste.

Man hat deshalb vielfach nach Ersatzmaterialien gesucht, die aber bisher in bezog auf Dünne, Zähigkeit und Festigkeit nicht entsprachen. Das als Ersatz verwandte Papier, das zur Erreichung .einer glatten Oberfläche noch grundiert wird, muß wegen der erforderlichen Festigkeit eine Dicke erreichen, die solche Formen zum Dünnschlagen, insbesondere von Gold, ungeeignet machen.For this reason, people have often looked for substitute materials, but they are heretofore not met in terms of thinness, toughness and strength. That as a replacement related paper that is primed to achieve a smooth surface, must reach a thickness because of the required strength that such shapes unsuitable for thinning, especially gold.

Es wurde nun gefunden daß o,oa mm dicke Cellulos.ehydratfolien nach Art der aus Viskose gewonnenen sogenannten Cellophaneallen an ein Formblatt zu stellenden Anforderungen gerecht werden.It has now been found that Cellulos.ehydratfolien o, oa mm thick Type of so-called cellophane made from viscose to be placed on a form To fit in requirements.

Sie sind dünner als Goldschlägerhäutchen, besitzen einen hohen Grad von Dichte, Zähigkeit und Festigkeit sowie Hochglanz und lassen sich leicht mit einem Grundierungsüherzug versehen.They are thinner than gold bat skin and have a high degree of density, toughness and strength as well as high gloss and can be easily combined with apply a primer coat.

Claims (1)

PATENTANSPRUCH: Herstellung von Formen zum Dünnschlagen von Blattgold, Blattsilber, Blattaluminium und anderen Blattmetallen, dadurch gekennzeichnet, daß man hierzu dünne Cellulosehydratfolien, insbesondere solche nach Art der Cellophane, mit oder ohne Grundi.erungsaufstrich 'benutzt.PATENT CLAIM: Manufacture of molds for thinning gold leaf, Silver leaf, aluminum leaf and other metal leaf, characterized in that to do this, thin cellulose hydrate films, especially those of the cellophane type, used with or without a foundation spread.
DEV20045D 1925-03-17 1925-03-17 Manufacture of molds for cutting sheet metal Expired DE438357C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV20045D DE438357C (en) 1925-03-17 1925-03-17 Manufacture of molds for cutting sheet metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV20045D DE438357C (en) 1925-03-17 1925-03-17 Manufacture of molds for cutting sheet metal

Publications (1)

Publication Number Publication Date
DE438357C true DE438357C (en) 1926-12-13

Family

ID=7578276

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV20045D Expired DE438357C (en) 1925-03-17 1925-03-17 Manufacture of molds for cutting sheet metal

Country Status (1)

Country Link
DE (1) DE438357C (en)

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