STRENGTHENING OF PIPE TOOLS FOR COLD ROLLER ROLLING OF CORROSION-RESISTANT PIPES BY APPLICATION OF AMORPHOUS ALLOYS

In the production of pipes from corrosion-resistant steels on pipe rolling plants, current problem is low stability tool. Therefore, creation high-performance and durable tools associated primarily with processing materials that could withstand harsh working conditions. The technology heat hardening tool for cold roller (rollers support laths HPTR mills) 4Х5МФ1С steel which excludes third holiday uses drawing a covering powders amorphous alloys 100…150 µm thick offered in work. As result durability, wear resistance, also hardness to HV0.1 950–1050 (in comparison HV 587–690 existing treatment factory conditions) increases. A wide range studies structure coating industrial tests rollers bars. It shown gas-plasma alloy based Fe–Si–B system increases surface by 1.3–1.6 times their ~ 30…50%.