COMPOSITE BILLET FOR HOT SHAPING

WIPO Patent Application WO/2003/066252

A1

The protective coating for the inventive composite billet used for hot shaping is embodied such that it is multi-component and comprises a base metallic layer having a specified continuous porosity, compacting materials in the form of the mixture of fine metallic and ceramic powders whose fraction is less than 50 mkm, and chemical reagents. Said protective coating being applied is compacted by plastic deformation at a reduction rate equal to or less than 5 %. Said composite billet exhibits a high quality and reliability level as a result of high heat-protective and gas-protective properties of the coating, thereby reducing the cost and extending the technological possibilities of the use thereof.

TETYUKHIN VLADISLAV VALENTINOV (RU)
ALTMAN PETR SEMENOVICH (RU)
POLYANSKIY SERGEY NIKOLAEVICH (RU)
SMIRNOV VLADIMIR GRIGORYEVICH (RU)

PCT/RU2003/000032

August 14, 2003

February 04, 2003

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OTKRYTOE AKTSIONERNOE OBSCHEST (RU)
TETYUKHIN VLADISLAV VALENTINOV (RU)
ALTMAN PETR SEMENOVICH (RU)
POLYANSKIY SERGEY NIKOLAEVICH (RU)
SMIRNOV VLADIMIR GRIGORYEVICH (RU)

B32B15/00; B21C23/00; C23C4/04; C23C4/18; C23C30/00; B21B1/38; B21B3/00; (IPC1-7): B21J1/00; C23C4/04; C23C4/18

WO2000014293A1

2000-03-16

SU1791461A1
RU2006518C1	1994-01-30

SHVEDKOV E.L. ET AL.: "Slovar-spravochnik po poroshkovoi metallurgii", KIEV, NAUKOVA DUMKA, 1982, pages 220

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