EP0135937A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of bonding alumina to metal
Assignee: Hitachi Ltd
•
Filing: 1984-09-27
•
Granted: —
•
Expires: 2004-09-27
Abstract
Abstract A method of bonding alumina to a metal characterized in that an aluminum or aluminum-base alloy sheet is inserted between the alumina and the metal when they are bonded together by being heated and pressed, thereby obtaining a product which has a high reliability in strength at the joint and a high dimensional accuracy.
Inventors
- 👤 Akiomi 7-503 Tsukuba-House Kohno
- 👤 Hideo Nakae
- 👤 Akihiko Yamamoto
- 👤 Hiroyuki Kawamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B2235/00; C04B2235/65; C04B2235/658; C04B2235/6581; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/121; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/402; C04B2237/405; C04B2237/406; C04B2237/50; C04B2237/60; C04B2237/72; C04B2237/76; C04B2237/765
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A method of bonding alumina to a metal wherein the alumina and the metal are bonded together by being heated and pressed with an interlayer being interposed between the respective surfaces of said alumina and said metal which are to be bonded, said method comprising: employing aluminum or an aluminum-base alloy as said interlayer.
Claim 2
Independent Claim
54 words
A method of bonding alumina to a metal wherein the alumina and the metal are bonded together by being heated and pressed with an interlayer being interposed between the respective surfaces of said alumina and said metal which are to be bonded, said method comprising: employing aluminum or an aluminum-base alloy as said interlayer.
Claim 3
Dependent Claim
41 words
A method of bonding alumina to a metal according to claim 1, wherein a sheet of an aluminum-silicon alloy is employed as said aluminum-base alloy, and heating is effected at a temperature higher than the solidus line of said aluminum-silicon alloy.
Claim 4
Dependent Claim
53 words
A method of bonding alumina to a metal according to claim 1, wherein a sheet constituted by a core sheet of an aluminum-base alloy and two skins of an aluminum-silicon alloy is employed as said aluminum-base alloy, and heating is effected at a temperature higher than the solidus line of said aluminum-silicon alloy.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.