DE438357C - Manufacture of molds for cutting sheet metal - Google Patents
Manufacture of molds for cutting sheet metalInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture 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)
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) |
-
1925
- 1925-03-17 DE DEV20045D patent/DE438357C/en not_active Expired
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