DE25843C - Process for the production of compound armor plates and other objects made of harder and softer types of iron and steel - Google Patents

Description

IMPERIAL

PATENT OFFICE V ^

Those made up to now from harder and softer layers of steel and iron Compound plates all suffer from the defect that when joining the harder and softer ones Material and, in the further warm processing of the plates, a large part of the carbon the harder layers merges into the softer layers.

The purpose of making compound plates is thereby largely lost; There are also difficulties in manufacture because of the fact that, depending on the temperature conditions more or less carbon passes into the soft layers and therefore, in many cases, that in relation to the carbon content The requirements set are not met.

I now avoid this inconvenience by placing myself between the hard and soft Layers of the compound panels are a thin layer of such metals or metal alloys one-tails, which prevent the carbon from passing over from the harder to the prevent or prevent softer layers. strongly inhibit.

Such metals and metal alloys which, on the one hand, allow carbon to pass over strongly inhibit and, on the other hand, weld well with iron and steel or hard cast iron for example nickel, cobalt, highly siliconized iron, etc.

I preferably use nickel sheets as such an intermediate layer, which are on both sides with Iron sheets are welded, and thus reach with a comparatively thin Nickel layer my purpose.

This process is the same as with compound panels also with others, composed of harder and softer types of iron and steel Objects applicable and can be carried out in the most varied of ways. The rule here is always the temperature conditions of the layers to be connected to one another to be chosen so that the intermediate layer probably wears well with the iron and steel, but does not melt.

The simplest way of making such a plate is to make the plate in question Placing intermediate plate as a partition in one form and then at the same time on one Side of the intermediate plate steel, on the other side of the same flux iron embedded in the mold.

If you want to avoid the simultaneous casting of hard and soft metal, you pour first to one side of the intermediate plate set up firmly against one wall of a mold in this one material, and then the other on the other side of the intermediate plate Material after the solidified plate with the appropriate temperature in one for this second Gufs matching shape is set.

If the compound plate is to be made of curled iron and mild steel, then one sets For example, make the tail plate in such a way that one cover plate is used for the last weld is formed by a nickel sheet welded on both sides with iron sheets, and

then arm this side of the tail plate in some way with steel.

The manner in which my process is to be modified if those to be made Plates should consist of multiple, alternating layers of harder and softer material, according to what has been said by itself.

Claims (1)

Patent claim: In the production of all types of compound panels and others, from harder and softer Iron and steel types of objects twisted together to avoid or strength Inhibition of the migration of carbon from the harder to the softer layers by interwoven layers of such metals or metal alloys, which migrate over Prevent the carbon from the harder to the softer layers respectively. strongly inhibit z. B. by intermediate layers of nickel or cobalt, layers of highly siliconized Iron etc.