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Process for producing a glass-metal connection

  • US 5,004,489 A
  • Filed: 02/22/1990
  • Issued: 04/02/1991
  • Est. Priority Date: 02/22/1989
  • Status: Expired due to Fees
First Claim
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1. A method of bonding together a glass part and a metal alloy part, said metal alloy part comprising iron and nickel, comprising the following successive steps:

  • subjecting said glass part and said metal alloy part to an oxidation phase under a first atmosphere which is substantially inert and contains from 2 to 8% of water vapor and less than 1% of hydrogen at a first temperature of from 600°

    to 800°

    C.;

    bonding said glass part and said metal alloy part together under a second atmosphere at a second temperature greater than the first temperature,wherein at least said first atmosphere is obtained by a catalytic reaction of a mixture of hydrogen and oxygen in proportions selected so as to obtain the desired content of water vapor and hydrogen.

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