Multi-Reactor Surface Modification to Prevent Media Contamination

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Solution Overview

Problem

Existing surface modification methods for components, such as burnishing and phosphating, often lead to contamination between media in reactors, resulting in early media replacement and inefficiencies in resource usage.

Innovation Solution

A method utilizing separate reactors for main and auxiliary processes, ensuring consistent separation of media to prevent contamination, allowing for longer media life and economical use, with a reactor device featuring heated reactors and transport systems for efficient media handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single reactor is used for sequential surface treatment processes, then device complexity is reduced, but media contamination occurs leading to early media replacement and resource waste

Engineering Contradiction:
Improvereactor configurationVSAvoidmedia contamination
Core Design Contradiction:
Device complexityVSLoss of substance

Solution Approach 1:

The treatment system is divided into multiple separate reactors, each dedicated to a specific treatment process (e.g., phosphating, burnishing, rinsing). This segmentation prevents cross-contamination between different treatment media while maintaining manageable device complexity through modular configuration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A transport device acts as an intermediary between reactors, transferring components between treatment stages without direct contact between different treatment media. This mediator prevents contamination while enabling sequential processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If media are frequently replaced due to contamination, then treatment quality is maintained, but productivity decreases and resource consumption increases

Engineering Contradiction:
Improvetreatment qualityVSAvoidproduction efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By segmenting the treatment process into separate reactors, each medium maintains its purity throughout the treatment cycle, eliminating the need for frequent replacements and ensuring consistent treatment quality without interrupting production flow.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple reactors enable continuous processing where components move through different treatment stages without waiting for media replacement. The system maintains continuous useful action across all treatment processes simultaneously.

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If reactors are emptied and refilled with different media, then versatile treatment is achieved, but heat loss increases and energy consumption rises

Engineering Contradiction:
Improvetreatment flexibilityVSAvoidheat loss
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

Each reactor is configured for a specific treatment process with optimized thermal conditions. By segmenting the system, each reactor maintains its thermal state independently, avoiding the energy loss associated with emptying and refilling with different temperature media.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transport device provides universal functionality by transferring components between various treatment reactors, enabling versatile treatment sequences without requiring each reactor to handle multiple media types, thus preserving thermal efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 minimizes heat loss, reduces process times, and extends media lifespan, enabling more efficient and resource-saving surface modification processes, particularly for ring-shaped components with diameters between 0.5m to 12m.

Implementation Method 1

the at least one main medium causing a chemical change in the surface of the at least one annular component

Methodology Applied
Scientific EffectChemical change: Chemical Bonding

Implementation Method 2

the surface modification being carried out in the form of a burnishing or a phosphating, with a conversion coating being formed

Methodology Applied
Scientific EffectPhosphating:

Implementation Method 3

the surface of the at least one ring-shaped component being treated by the auxiliary medium

Methodology Applied
Scientific EffectSurface treatment:

Implementation Method 4

at least one heated first reactor

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP3625378B1Method for the surface modification of at least one component and reactor device for carrying out the method
Publication Date: 2023.07.12 SCHAEFFLER TECHNOLOGIES AG & CO KG
  • EP3625378B1 patent drawingFigure 1
  • EP3625378B1 patent drawingFigure 2
  • EP3625378B1 patent drawingFigure 3

AI summary

The invention relates to a method for the surface modification of at least one component (3), which has a diameter or dimensions in the range of 0.5 m to 12 m, wherein in at least one first reactor (2, 2') at least one main process (400) is carried out and in at least one second reactor (2a, 2b) at least one auxiliary process (100) is carried out. The invention further relates to a reactor device (1, 1') for carrying out the method.