Method and system for closing a receptacle
The method addresses the issue of heat-affected zones in welding by using hot working and plastic deformation to create a gastight seal in thin-walled tubes and containers, ensuring long-term integrity.
US20260131921A1Pending Publication Date: 2026-05-14CHENG PAUL PO
0 Cites 0 Cited by
Patent Information
- Application Number
- US19/442242
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- Priority Date
- 2023-04-26
- Filing Date
- 2026-01-07
- Publication Date
- 2026-05-14
AI Technical Summary
Technical Problem
Conventional welding methods for closing the ends of thin-walled tubes and containers used in nuclear reactors and waste storage containers result in heat-affected zones and residual stress patterns, leading to potential leaks and degradation over time.
Method used
A method involving heating an engagement part of an end element to a hot working temperature in an inert atmosphere, followed by plastic deformation to bond the end element with the receptacle wall, forming a gastight seal without heat-affected zones.
Benefits of technology
The method creates a gastight seal with a uniform crystalline microstructure, preventing leaks and degradation, ensuring long-term integrity of the closure.
✦ Generated by Eureka AI based on patent content.
Abstract
A method of closing an open end of a receptacle having a wall with an inner wall surface. The method includes providing an end element including an internal portion thereof formed for at least partial engagement thereof with the wall. One or more heating elements are provided, for heating a heated layer of the internal portion to a hot working temperature in an inert atmosphere. When the heated layer is at the hot working temperature, an engagement part of the heated layer is engaged with a preselected part of the wall. One or both of the receptacle and the end element are subjected to an engagement motion relative to the other while the engagement part and the preselected part are engaged for plastic deformation thereof, to at least partially bond the heated layer and the wall of the receptacle together to form a gastight container assembly.
Need to check novelty before this filing date? Find Prior Art