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US 12,350,751 B2Granted
Welded, laminated apparatus, methods of making, and methods of using the apparatus
AssigneeVelocys, Inc.
InventorsThomas Yuschak, Anna Lee Tonkovich
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Abstract
The invention describes methods of welding onto laminated devices using a low temperature welding process. Also described are laminated devices with welds that do not disrupt a brazed core block of sheets in the laminated devices. Novel laminated devices with welded features for servicing the devices are also described.
Claims4
A method of conducting a unit operation in a laminated apparatus comprising:
- the laminated apparatus comprising:
- a core block comprising sheets of metal bonded together, at least in part, by a braze composition disposed between the sheets;
- a welding composition disposed on the core block and adhering to the braze composition;
- wherein the welding composition has a composition that differs from the composition of the braze composition;
- and
- wherein the welding composition is diffused 2 mm or less into the core block;
- passing a fluid into a channel in the core block and conducting a unit operation on the fluid in the core block.
4 more elements
Dependencies are inferred from the claim text.