DE504725C - Process for the production of sheet-shaped multiple metal bodies - Google Patents

Description

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1530

ISSUED ON
AUGUST 9, 1930

REICH PATENT OFFICE

PATENT LETTERING

M 504725 CLASS 491 GROUP 5

# 101655 l \ 4Ql Date of publication of the patent grant: July 24, 1930

Fried. Krupp Akt-Ges. in Essen, Ruhr *)

Process for the production of sheet metal multiple metal bodies

Patented in the German Empire on November 12, 1926

The invention relates to processes for the production of sheet-metal multiple metal bodies from blanks, in particular for the simultaneous production of at least two iron sheets with a support from are coated with corrosion-proof steel. The invention aims to provide a method of this To create a way that is easier and safer to implement in the company than others .ip process and is also characterized by that the sheet-like multiple metal bodies produced according to him are consistently of perfect condition. This purpose is achieved according to the invention in that the by heating and Rolling out to sheet-shaped multiple metal bodies to be combined into one Package can be summarized in which two boards protruding from the edge Boards are enclosed, and with ■ only the protruding boards are welded together by strips.

In the following, on the basis of Fig. 1

to 4 three exemplary embodiments of the method forming the subject matter of the invention are explained Figs. r and 2 serve to explain the first, Fig. 3 to explain the second and Fig. 4 the explanation of the third embodiment

example.

In Fig. 1 and 2 it is a question of producing two sheet-metal double metal bodies, each of which consists of a sheet of fluoro iron and a one-sided support made of corrosion-resistant chrome-nickel steel (ζ. Β. V2A steel). For this purpose, first, two rectangular Flußeisenplatinen A and A ¹ as well as two rather small also rectangular Chromnickqlstahlplatinen B and manufactured B ¹ and each side - and a- on the side surfaces, "·", b, b ³ - welding finished (blank ), while their other side surfaces a ¹ , a ^b , 6 ¹ , b ^{h are left} in a condition that is not ready for welding (e.g. covered with scale) the Flußeisenplatinen A, A ^x are on the outside and its welding ready-made sides a-, ³ ß against the welding ready-made sides b-, b * create the stainless steel blanks B, B '. between which b with their non-welded finished pages ^l, b ^'J contacting stainless steel blanks B and B ¹ is further (eg. kaolin) a welding preventing spread fabric. Then, in the flußeiserne formed by the projecting edges of the Flußeisenplatinen a, a ¹ channel bars C, D, E, F inserted, which protrude slightly over the edges of the boards A, A ^1. These strips are welded with the help of a welding torch to the edges of the blanks A, A ¹ by melting, so that the blanks A, B, B ¹ , A ^{1 form} a closed package, the parts of which are rigidly connected to one another along the edges.

*) Fon iem patent seeker has been named as the inventor:

Wilhelm Lenncki in Essen.

This package is warmed up in a warming compartment and, when warmed up, rolled out into a sheet-like body. During the rolling process, the blank .4 welds together with the blank B and the blank .4 ¹ with the blank B ^L , while the blanks B and B ¹ . between which the welding preventing intermediate layer i_ /. B. made of kaolin) ίο remain separate from each other. After rolling, the edges of the sheet metal body that were welded together before rolling are cut off, whereupon the body falls apart into two double metal bodies, each of which consists of a sheet metal coated on one side with a chrome-nickel steel layer .4. B or A ¹ , B ¹ . In the second embodiment illustrated by Fig. 3, it is a question of rolling a double-sided with a chrome-nickel steel! V 2A-Stahl-1 overlay and two fluent iron plates with a chrome-nickel steel (V2A steel) overlay on each side. For this purpose, three cast iron blanks A, A ¹ , G and four chrome-nickel steel blanks B, B ¹ . H. J put together a package of the kind shown in Fig. 3. In the case of the fluids A, A \ G are the ones before. Chrome-nickel steel plates B, B ¹ , H, J touching sides a-, ^a3 > S ¹ 'S' ² have been made ready for welding (blank), and vice versa with the chrome-nickel steel plates the sides b-, b ^z , k ¹ , ϊ ¹ ; the other sides of the blanks have been left in their non-weldable state, and a welding-preventing substance (e.g. kaolin) has also been spread between the touching sides of the chromium-nickel steel blanks B, H or B ¹ , J. The thus prepared package is then along its edges welded together in the direction indicated in the first embodiment example, by means of flußeiserner strips, then warmed up, rolled out and cut lengthwise of the edges, whereupon it falls apart into three plate-shaped body., Of which one, G. H , J, made of a thin chrome-nickel steel sheet on both sides and the other two, A, B and “4 ¹ , B ¹ . consist of a sheet of fluoro iron coated on one side with a thin chrome-nickel steel layer.

In the exemplary embodiment according to FIG. 4, two blanks K. M of different composition, but the same thickness, are to be rolled out to form a so-called bimetal strip. For this purpose, the mutually touching sides k ¹ , m ^{l of} the blanks K-M are first made ready for welding (blank); Then the plates K- A1 are combined with two iron plates N, P to form a package, the parts of which are welded together along the edges by means of strips in the manner described earlier. The package is then warmed up, rolled out and cut open at the edges, whereupon it falls apart into three sheet-metal bodies, namely two sheet metal sheets N, P and a so-called bimetallic sheet K, M.

Claims (4)

PATENT CLAIMS! 1. Process: for the production of sheet-shaped multiple metal bodies from blanks, in particular iron sheets, which are coated with a layer of corrosion-proof steel, characterized in that the blanks (A, B and B ¹ , A ¹ or A, B and H, G, J and B ¹ , A ¹ or K, Ai) can be combined into a package in which two boards (B, S ¹ or B. H and /, B ¹ or \ v . K- Λί) are enclosed by boards (.4, A ¹ or A. G, A ¹ or N, P) protruding at the edge, and in which only the protruding boards (A, A ¹ or A, G , A ^x or N, P) by strips (C, £>, ^e, F) are welded together. 2. The method according to claim r, characterized in that two thin plates \ B, B ¹ ) made of corrosion-resistant steel are enclosed by two plates (A, A ¹ ) made of iron protruding at the edge, and that the protruding plates (A, A ¹ ) are welded together using strips (C, D. E, F) (Fig. 2). 3. A method according to claim 1, characterized i _O o in that two thin, secured against welding together plates (B, H /, B ¹ and) are surrounded by projecting at the edge boards (A, G, A ^1), and in that the protruding platins (.4, G, A ¹ ) are welded together with strips (Fig. 3). 4. The method according to claim 1 for preparing a so-called bimetal, characterized in that two particular for welding together plates (K M) of the different metal from protruding at the edge boards ^(Λ;, P) are enclosed, and that the projecting sinkers by strips are welded together. 1 sheet of drawings