METHOD FOR MANUFACTURING RODS WITH DIAMETER OF 8-60 mm FROM LOW-ALLOYED HEAT-RESISTANT COPPER-BASED ALLOYS Russian patent published in 2023 - IPC C22F1/08 B21B3/00 B21B1/16 

FIELD: rolling mill.

SUBSTANCE: used for hot rolled section of rods with a diameter of 8-60 mm from low-alloy heat-resistant copper-based alloys, subject to turning and suitable for the manufacture of products used at elevated temperatures. The method includes multi-pass hot rolling of a previously obtained pressed blank with a diameter of 95-100 mm, to pre-finishing sizes in the temperature range 950-700°C on calibration “circle-oval-circle” with reductions per pass of 5-40% and a total degree of reduction of 50-99%, followed by cutting to final dimensions.

EFFECT: possibility of expanding the range of rods, increasing productivity, reducing the production cycle of rods, reducing metal consumption and increasing the environmental friendliness of the process.

3 cl, 1 tbl, 1 ex