发明名称 METHOD FOR PRODUCTION OF HOLLOW PUMP ROD (VERSIONS)
摘要 FIELD: technological processes. ^ SUBSTANCE: in the first version of method hollow tubular billet is deformed on burnisher by cold radial forging with molding of rod body and head, with deformation degree of 2-20% during deformation of head, and 2-40% during body deformation. In the second version of method hollow tubular billet is deformed, and its external diameter corresponds to the largest diameter of finished rod head, by cold radial forging with molding of body, deformation degree makes 2-40%, after deformation internal surface of rod heads is honed. ^ EFFECT: higher strength characteristics, smaller weight and high quality of internal surface. ^ 2 cl
申请公布号 RU2342217(C2) 申请公布日期 2008.12.27
申请号 RU20060145619 申请日期 2006.12.20
申请人 ZAKRYTOE AKTSIONERNOE OBSHCHESTVO "EHLKAM-NEFTEMASH" 发明人 ALEKSEEV MIKHAIL ALEKSANDROVICH;BYCHKOV NIKOLAJ ALEKSANDROVICH;KARTEL' GEORGIJ ALEKSANDROVICH
分类号 B21K21/00;B23P15/00 主分类号 B21K21/00
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