Electric Welding Process for Radiator Pipe Isolation
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Solution Overview
Problem
The existing methods for manufacturing radiators with closely spaced heating pipes are inefficient due to the need for manual gas-shielded welding, which complicates series production and prevents automated processes, as direct welding between heating pipes is not feasible.
Innovation Solution
The method involves using electrically insulating pads made of high-resistance materials like paper or plastic between metal elements to prevent unwanted welding connections, allowing for targeted electrical current flow during welding by applying electrodes to metal profiles, enabling the welding of metal elements at any angle while maintaining isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual gas-shielded welding is used to weld closely spaced heating pipes to collecting pipes, then welding connection is achieved, but production efficiency is low and automation is prevented
Solution Approach 1:
The patent replaces manual gas-shielded welding (mechanical/manual process) with electric resistance welding (electrical process). By applying electrical current through the heating pipes and collecting pipes, weld points are created automatically at spaced intervals without manual intervention, enabling automation and significantly improving production efficiency.
Solution Approach 2:
The patent divides the continuous welding process into discrete weld points spaced at specific intervals (e.g., 5-10 cm). Insulating material is placed between adjacent heating pipes to electrically isolate them, allowing individual weld points to be created sequentially along the pipe length, enabling automated point-by-point welding rather than continuous manual welding.
2Shape
If heating pipes are welded very close together, then structural compactness is achieved, but electrical insulation between pipes becomes difficult
Solution Approach 1:
The patent introduces insulating material (such as plastic coating, paper, or ceramic) as an intermediary substance placed between adjacent heating pipes. This insulating layer prevents electrical current from jumping between closely spaced pipes, maintaining electrical isolation while allowing the pipes to be positioned very close together for compact structural design.
Solution Approach 2:
The patent employs thin film insulating coatings (such as plastic layers) applied directly to the surface of heating pipes. These thin films provide effective electrical insulation between closely spaced pipes while occupying minimal space, thus maintaining the compact structural arrangement of the radiator components.
3Reliability
If insulating material is placed between metal elements, then electrical separation is achieved, but device complexity increases
Solution Approach 1:
The patent applies insulating material to heating pipes in advance during the manufacturing process, before assembly into the final product. This preliminary insulation step simplifies the overall manufacturing process by pre-preparing components with their insulation already in place, rather than attempting to install insulation during final assembly.
Solution Approach 2:
The patent changes the surface properties of heating pipes by applying insulating coatings or layers, fundamentally altering their electrical parameters. This transformation allows the pipes to maintain both their conductive function (when in contact with collecting pipes at weld points) and insulating function (when adjacent to other heating pipes), resolving the electrical separation requirement without adding complex isolation mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies and automates the production of radiators by ensuring precise electrical separation between metal elements, allowing for efficient welding of closely spaced heating tubes to metal profiles, enhancing production efficiency and preventing shunt connections.
Implementation Method 1
the insulation areas are formed by an electrically insulating material which has a high electrical resistance
Implementation Method 2
electric welding process... during electrical welding, one electrical pole is applied to a metal element and the other electrical pole is applied to the metal profile
Data Source
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AI summary
Method for electrically welding adjacent metal elements (2) to at least one metal profile (1), wherein insulating areas (3) are arranged between the metal elements (2), thereby electrically separating the metal elements (2) from each other and directing the electric current during welding through the arrangement of the insulating areas (3).