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Highly malleable, ductile zinc strip

Pending Publication Date: 2019-12-12
GRILLO-WERKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent aims to provide a lead-free zinc strip that is highly malleable and ductile, but not toxic. By alloying zinc with low amounts of titanium and aluminium, a highly effective material was created for applications such as roofing.

Problems solved by technology

Lead is getting less and less accepted by the public due to its toxicity for humans.
None of the alternative materials shows sufficient malleability and ductility for the above-mentioned applications.

Method used

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Examples

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Embodiment Construction

[0004]Thus, in a first embodiment the present invention is solved by a zinc strip comprising zinc as main component and further comprising titanium as well as aluminium. The amount of titanium is 500 ppm or less and the amount of aluminium is 100 ppm or less. In another embodiment, the present invention refers to the use of a respective zinc strip in the field of roofing. In another embodiment, the present invention refers to a method to produce a zinc strip with defined low amounts of titanium and aluminium.

[0005]Surprisingly it was found that a zinc strip with a defined low amount of titanium and aluminium, which are alloyed with the zinc, enables to produce a highly malleable, ductile zinc strip. Further surprisingly it was found that when producing a zinc strip, quite low temperatures of about 100° C. are sufficient together with a high number of rolling passes to increase the malleability and ductility of the zinc strip.

[0006]The zinc strip of the present invention is obtained ...

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Abstract

The present invention refers to a zinc strip comprising zinc as main component, wherein titanium and aluminium are alloyed together with the zinc. The obtained zinc strip is highly malleable and at the same time ductile. The zinc strip is free of lead.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to European patent application 18176438.2 filed Jun. 7, 2018 which is incorporated herein by reference.TECHNICAL FIELD[0002]The present invention refers to a zinc strip comprising zinc as main component, wherein titanium and aluminium are alloyed together with the zinc. The obtained zinc strip is highly malleable and at the same time ductile. The zinc strip is free of lead. The zinc strip according to the present invention is ductile and the therefrom resulting high formability enables the skilled artisan to use the zinc strip especially in roofing applications.INTRODUCTION AND SUMMARY OF THE INVENTION[0003]Until today, usually lead is used in roofing applications, i.e. ceilings of dormers on a roof, transitions on a roof area etc. Lead is getting less and less accepted by the public due to its toxicity for humans. None of the alternative materials shows sufficient malleability and ductility for the above-...

Claims

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Application Information

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IPC IPC(8): C22C18/00C22F1/16
CPCC22F1/165C22C18/00
Inventor KROSS, UWEKASPROWICZ, BERNDGOODEY, TREVOR
Owner GRILLO-WERKE
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