Technology
Production technology: The production technology of expanded metal involves simultaneous slitting and stretching of the sheet metal, resulting in a lattice monolithic structure with a three-dimensional surface. From one linear meter of input material, a significantly larger amount of mesh is produced without any waste, with adjustable parameters such as stretch, bridge thickness, and opening. The rhomboidal or hexagonal openings have no joints or movable connections, which guarantees dimensional stability even under pressure. During production, no losses or waste occur, making Ledóchowski mesh advantageous in terms of material efficiency.
History: The inventor and patent holder of expanded metal is British inventor John French Golding. He patented his invention in 1884 and later collaborated with Mathew Gray, Christopher Furness, and Robert Irving Jr., along with WB Close, to introduce the production of wire mesh in Hartlepool.
In Poland, Count Stanisław Ledóchowski is considered a precursor in the production of this type of mesh, hence the material is also known as Ledóchowski mesh. The beginnings of production date back to 1921 when it started in the Polish Factory of Uniform Mesh, named after Count Stanisław Ledóchowski SA, located at Przemysłowa Street 24 in Warsaw.
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