Welding Shield Coating to Prevent Spatter Buildup

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Solution Overview

Problem

Welding quality is compromised due to spatters adhering to the protective apparatus during the welding process, leading to poor welding performance and reduced device performance.

Innovation Solution

A protective apparatus with a thermally conductive coating on its surface to rapidly cool and solidify spatters, allowing them to slide down and be reused as welding materials, and a movable protective body for precise alignment and protection of the welding region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a protective apparatus is used during welding, then the welding region is protected from spatters, but the spatters adhere to the protective apparatus surface reducing its service life and welding quality

Engineering Contradiction:
Improvewelding qualityVSAvoidservice life of protective apparatus
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The surface properties of the protective apparatus are changed by applying a thermally conductive coating, which fundamentally alters how the surface interacts with welding spatters. This parameter change enables the surface to rapidly cool and solidify spatters, preventing adherence and extending service life while maintaining welding quality

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The protective apparatus uses a composite structure with a base material and a thermally conductive coating layer. This composite material design combines the protective function of the base structure with the thermal management properties of the coating, creating a surface that can handle high-temperature spatters without degrading

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If the protective apparatus surface is made smooth, then spatters can slide down easily, but the surface area for heat transfer is reduced

Engineering Contradiction:
Improvespatter slidingVSAvoidheat transfer efficiency
Core Design Contradiction:
Ease of operationVSTemperature

Solution Approach 1:

The thermally conductive coating changes the thermal parameters of the surface, enabling rapid heat transfer that compensates for the reduced surface area. The high thermal conductivity ensures that even with a smooth surface, enough heat is transferred to quickly solidify spatters and enable them to slide down

Inventive Principle:
Principle #35Parameter changes

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

Improves welding quality by reducing spatter adherence, prolonging apparatus life, and enhancing welding accuracy and efficiency.

Implementation Method 1

a surface of the protective mechanism facing the welding hole is provided with a thermally conductive coating, where the thermally conductive coating is configured to guide substances formed in welding the to-be-welded part to slide down along the surface of the thermally conductive coating

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

under the action of gravity, the cooled and solidified substances can slide down the heat-conducting coating with smooth surface

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP4234157B1Protective apparatus
Publication Date: 2025.10.29 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • EP4234157B1 patent drawingFigure 1~2
  • EP4234157B1 patent drawingFigure 3
  • EP4234157B1 patent drawingFigure 4~5

AI summary

This application relates to a protective apparatus (1). The protective apparatus (1) is configured to protect a to-be-welded part, the to-be-welded part includes a welding region, and the protective apparatus (1) includes a base (10) and a protective mechanism (20). The base (10) is configured for embedding the to-be-welded part. The protective mechanism (20) is connected to the base (10). The protective mechanism (20) includes a welding hole (201), where the welding hole (201) is provided corresponding to the welding region; and a surface of the protective mechanism (20) facing the welding hole (201) is provided with a thermally conductive coating (21), where the thermally conductive coating (21) is configured to guide substances formed in welding the to-be-welded part to slide down along the surface of the thermally conductive coating (21). The protective apparatus (1) in this application can improve welding quality of the welding region, thereby enhancing performance of the to-be-welded part.