【発明の名称】アルミニウム合金製強化シリンダヘッド

Title:

【発明の名称】アルミニウム合金製強化シリンダヘッド

Document Type and Number:

Japanese Patent JP2811882

Kind Code:

B2

Abstract:

PURPOSE:To reinforce a spot of generating a heat crack by forming a recessed part in a wall surface, opposed to a combustion chamber, and filling the recessed part with a sintered material of aluminum dust grain, whose surface is coated with a metal for improving heat resistance, to form a heat resisting reinforced layer. CONSTITUTION:Suction and exhaust ports 2, 3 are formed and also a communication port 4, by which a combustion chamber communicates with a subcombustion chamber 6, is provided, in an aluminum alloy-made cylinder head 1. Here is provided a reinforced layer 5 mutually between the suction and exhaust ports 2, 3 and the communication port 4 which are spots where a heat crack is generated. This reinforced layer 5 is formed by first coating aluminum dust grain surfaces with nickel. A plasma discharge is generated between aluminum dust grains to remove an oxidized film or the like from a nickel surface by applying pulse voltage by a pulse power supply 8 in a press condition, and the dust grain is sintered by generating mutual contact with the fellow activated nickels.

Inventors:

Uemura Tadashi
Akira Tsujimura

Application Number:

JP7113390A

Publication Date:

October 15, 1998

Filing Date:

March 20, 1990

Export Citation:

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