DEVICE FOR exact geometric dimensions during heat treatment RING steel thin-walled products with female corrugation

摘要

1. A device for obtaining precise geometric dimensions during the heat treatment of steel products with a thin internal annular corrugation, comprising a rack of interconnected hollow collapsible austenitic mandrels, each of which consists of two parts, forming a groove in the connector to accommodate the corrugation, characterized in that the connector is a hollow mandrel is designed as a flat surface, and each mandrel is provided with at least two fixing devices mounted circumferentially uneven in the planes razema.2 minute. The apparatus according to claim 1, characterized in that the locking device is a pin projecting beyond the parting plane, fixed in one part of the mandrel and the corresponding pin hole formed in the other part opravki.3. The apparatus according to claim 1, characterized in that, at least in one part of the mandrel is provided with through technological openings to facilitate disassembly of the mandrel.