Abstract
The possibility of using secondary raw materials from waste mandrels of the continuous TPA mill 159-426 mm of the pipe rolling shop TPP-3 in the manufacture of matrix rings (matrices) for the press lines of the pipe-pressing shop TPP-2 of VTZ «JSC» has been confirmed. The approach used allows us to reduce costs, and the development of the metal structure with subsequent heat treatment increases hardness and further increases the durability of pressing tools for pipe production.
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