Sealing Cavity Outflow During Structure Cutting

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Solution Overview

Problem

Existing cutting methods for structures often result in outflows from cavities during cutting operations, which can lead to environmental contamination and structural damage.

Innovation Solution

A method involving the partitioning of cavities within structures using sealing materials like resin foam or balloons to prevent outflows, ensuring effective sealing and containment of residues before cutting, thereby suppressing leakage during the cutting process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If cutting work is performed on a structure, then the structure can be disassembled into elements, but outflow may flow out from a cavity in the structure during cutting

Engineering Contradiction:
Improvedisassembly capabilityVSAvoidoutflow leakage
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The cavity is sealed with a sealing material before the cutting work is performed. This preliminary sealing action prevents outflow from escaping during the subsequent cutting process, thereby resolving the contradiction between enabling disassembly and preventing harmful outflow leakage.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A sealing material is introduced as an intermediary substance between the outflow inside the cavity and the external environment. This sealing material acts as a barrier that allows the cutting work to proceed while preventing the outflow from reaching the outside, thus enabling both disassembly and leakage prevention.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-generated harmful factors

If a sealing material is used to partition the cavity, then outflow can be suppressed, but the complexity of the cutting process increases

Engineering Contradiction:
Improveoutflow leakageVSAvoidcutting process complexity
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The sealing operation is performed as a preliminary step before cutting, which simplifies the overall process management. By completing the sealing beforehand, the actual cutting process becomes more straightforward and less complex, as the hazard of outflow leakage is already controlled.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sealing material used is a simple, inexpensive, and easily applicable substance that can be quickly installed and removed. This approach adds minimal complexity to the process while effectively preventing outflow, making the sealing step a simple preliminary task rather than a complex operation.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP4230799A1Cutting method, disassembly method, repair method, and operation method
Publication Date: 2023.08.23 MITSUBISHI HEAVY IND LTD

AI summary

Object A cutting method, a disassembly method, a repair method, and an operation method that can suppress an outflow from a structure are provided. Solving Means The cutting method includes partitioning a cavity in a structure with a sealing material, and cutting the structure.