Process for producing a gas-tight soldered joint and use of the process in the production of components with a vacuum-tight casing
AssigneeSiemens Aktiengesellschaft
InventorKlaus Gessner
Life of this patent
Estimating the term…
Abstract
In order to simplify the soldering process in the production of a vacuum-tight soldered joint between a ceramic component and a copper component, a layer of silver is first applied galvanically to the copper component to form the soldering material together with the underlying surface layer of the copper component. During the heat treatment required for soldering metal components can also be soldered in the same manner to the copper component, e.g. the bellows or the screen of a vacuum switching tube.
Claims4
A process for producing a gas-tight soldered joint between a ceramic component and a copper component, comprising the steps of:
- a) applying metal-plating to the ceramic component in an area of the soldering location;
- b) placing the copper component on the ceramic component;
- c) joining the copper component to the ceramic component using a soldering material made of a copper-silver-eutectic through heat treatment;
- and
- d) applying galvanically to the copper component a silver layer in the area where the soldered joint is to be placed, as well as in surface areas bordering the actual location where the soldered joint is to be placed prior to the heat treatment.
A process for producing a gas-tight soldered joint between a ceramic component and a copper component, which has a vacuum-tight casing made of a copper component, said process comprising the steps of:
- a) applying metal-plating to the ceramic component in an area of the soldering location;
- b) placing the copper component on the ceramic component;
- c) joining the copper component to the ceramic component using a soldering material made of a copper-silver-eutectic through heat treatment;
- and
- d) applying galvanically to the copper component a silver layer in the area where the soldered joint is to be placed, as well as in surface areas bordering the actual location where the soldered joint is to be placed prior to the heat treatment.
Dependencies are inferred from the claim text.