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2 342 216

(13)

(51)

IPC

B21K1/76(2006-01-01)

B21K21/12(2006-01-01)

B21J5/08(2006-01-01)

(21) (22)

Application

2007105455/02, 2007-02-13

(24)

Start date

2007-02-13

(22)

Actual filing date

2007-02-13

(45)

Published

2008-12-27

(72)

Inventor

Shrajbman Vladimir MoiseevichKolupaev Aleksandr MikhajlovichDolmatov Vjacheslav PavlovichPonurovskaja Aleksandra Georgievna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Spetsial'Nogo Mashinostroenija I Metallurgii Zavody"

METHOD FOR PRODUCTION OF PUMP ROD Russian patent published in 2008 - IPC B21K1/76 B21K21/12 B21J5/08

Abstract RU 2342216 C2

FIELD: technological processes.

SUBSTANCE: end section of billet is heated and deformed in die block. At that at first metal is accumulated for molding of rod head. Accumulation is done in at least three stages in puncheon cavity. Volume of this cavity is selected provided that its value is reduced from the first stage of deformation to the last one in interval that makes 1.2÷1.1 from volume of finished rod head. Then nipple part of head is molded in puncheon cavity with provision of its profile and geometric dimensions. Remaining part of rod head external surface is molded in matrix cavity.

EFFECT: higher quality of produced items with simultaneous simplification of production and reduction of expenses.

2 dwg

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RU 2 342 216 C2

Authors

Shrajbman Vladimir Moiseevich

Kolupaev Aleksandr Mikhajlovich

Dolmatov Vjacheslav Pavlovich

Ponurovskaja Aleksandra Georgievna

Dates

2008-12-27—Published

2007-02-13—Filed