PROCESS OF HEAT TREATMENT OF TRAM TYRES Russian patent published in 1999 - IPC

Abstract RU 2134306 C1

FIELD: thermal treatment of ferrous metals, manufacture of tyres from carbon steel for tram rolling stock. SUBSTANCE: process includes rolling and stamping of tyres in hot condition, isothermal holding in unheated pits, slowed-down cooling in air. Temperature of metal of tyres is kept in interval between 840-880 C between rolling and stamping. Process of isothermal holding is carried out in the course of 0.8-1.1 h at temperature 500-650 C with subsequent slowed-down cooling to temperature of 250 C. EFFECT: provision for conditions of antiflake treatment of tram tyres in unheated pits and narrowing of temperature interval between rolling and stamping of tyres.

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RU 2 134 306 C1

Authors

Kuzovkov A.Ja.

Polushin A.A.

Shegusov A.M.

D'Jakov A.M.

Petrenko Ju.P.

Egorov V.D.

Oparina A.A.

Dvojnikov V.A.

Flatov G.I.

Nemchinov V.A.

Parshin V.A.

Paryshev Ju.M.

Valetov M.S.

Dates

1999-08-10Published

1998-04-14Filed