Global Patent Index - EP 0747494 A1

EP 0747494 A1 19961211 - A1-based composite material having adhesion resistance property and process for producing the same

Title (en)

A1-based composite material having adhesion resistance property and process for producing the same

Title (de)

Verbundwerkstoff auf Aluminiumbasis mit Klebrigbeständigkeit und das Herstellungsverfahren

Title (fr)

Matériau composite à base d'aluminium, ayant une propriété de résistance à l'adhésion, et procédé pour sa production

Publication

EP 0747494 A1 19961211 (EN)

Application

EP 96108948 A 19960604

Priority

JP 13974095 A 19950606

Abstract (en)

An Al alloy piston comprises a piston body and a reinforced portion forming a piston groove. The reinforced portion is composed of Al-based composite material. Namely, Al molten metal (AC8A) forming the piston body was impregnated to the powder compact which is non-sintered compact so as to be solidified so that the reinforced portion was formed. The powder compact is made by compressing atomized powder having the primary crystal Si particles whose mean particle diameter is 10 mu m (microns). To the powder compact Fe-Cr powder particles may be added. Accordingly, the present invention provide Al-based composite material whose adhesion resistance property is improved and the process for producing the same. <IMAGE>

IPC 1-7

C22C 21/02

IPC 8 full level

C22C 47/08 (2006.01); B22F 3/26 (2006.01); C22C 21/02 (2006.01)

CPC (source: EP)

B22F 3/26 (2013.01); C22C 21/02 (2013.01)

Citation (search report)

  • [A] EP 0141501 A1 19850515 - SHOWA ALUMINUM CORP [JP]
  • [A] US 3895941 A 19750722 - BOLLING GUSTAF FREDERIC, et al
  • [A] US 5234514 A 19930810 - DONAHUE RAYMOND J [US], et al
  • [XA] DATABASE WPI Section Ch Week 8707, Derwent World Patents Index; Class M26, AN 87-045608, XP002011236
  • [Y] DATABASE WPI Section Ch Week 9201, Derwent World Patents Index; Class M22, AN 92-003616, XP002011237
  • [Y] DATABASE WPI Section Ch Week 8531, Derwent World Patents Index; Class M22, AN 85-188088, XP002011238

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0747494 A1 19961211; EP 0747494 B1 20020313; EP 0747494 B2 20050824; DE 69619731 D1 20020418; DE 69619731 T2 20020808; DE 69619731 T3 20060316; JP H08333645 A 19961217

DOCDB simple family (application)

EP 96108948 A 19960604; DE 69619731 T 19960604; JP 13974095 A 19950606