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2 139 156

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IPC

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Application

98119036/02, 1998-10-19

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Start date

1998-10-19

(22)

Actual filing date

1998-10-19

(45)

Published

1999-10-10

(72)

Inventor

Abramenko V.I.Kochi G.L.Lukanin Ju.V.Komorin O.A.Maslov A.A.Veter V.V.Tjapaev O.V.Trajno A.I.Titov V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD FOR RESTORING ROLLING ROLLS Russian patent published in 1999 - IPC

Abstract RU 2139156 C1

FIELD: restoration of steel rolling rolls with damaged necking portions. SUBSTANCE: method comprises steps of mechanically removing damaged layer of material from roll necking portion; heating necking portion up to 380-440 C for fusion at rate 50-80 C/hour; performing subsequent fusion at rate 20-40 m/h and electric current density 25-35 A/ sq.mm; performing heat treatment of fused necking portion at heating it up to 430-470 C and soaking at such temperature for 0.5-1.5 hours. EFFECT: enhanced strength of rolls. 1 tbl, 1 ex

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RU 2 139 156 C1

Authors

Abramenko V.I.

Kochi G.L.

Lukanin Ju.V.

Komorin O.A.

Maslov A.A.

Veter V.V.

Tjapaev O.V.

Trajno A.I.

Titov V.A.

Dates

1999-10-10—Published

1998-10-19—Filed