Production and Quality Investigation of 20GML Steel Castings for Pipeline Fittings

摘要

The technology of OAO Izhorskie Zavody and OOO OMZ Liteinoe Proizvodstvo of OMZ Corporation for the production of 20GML steel castings is described. Quality analysis of cast pipeline parts is performed. In 2010-2011, OAO Izhorskie Zavody and OOO OMZ Liteinoe Proizvodstvo of OMZ Corporation worked on improving the process of casting of large-sized parts. Under an agreement with ZAO NPF TsKBA, a prototype of a DN1000 PN8.0 flat gate valve was fabricated for the oil main pipelines belonging to OAO AK Transneft'. NPO TsNIITMASH was a collaboration company with the participation of the OOO TK OMZ Izhora Research Center (RC).