Corrugated Plate Forming with Correlated-Speed Extrusion

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Solution Overview

Problem

Existing processes for manufacturing corrugated plates for liquefied gas storage tanks, particularly for marine equipment, face challenges in achieving uniformity, fluency, and strength, especially at intersections of transverse and longitudinal corrugations, which affects the sealability and stability of the storage tanks.

Innovation Solution

A processing apparatus with a unique driving mechanism that correlates the speeds of slide plates and shaping blocks to form corrugated plates with improved uniformity and strength, featuring a pair of slide plates, press plates, and a shaping block with a predetermined forming profile, and nitrogen gas springs for precise movement and pressure control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If simple bending and punching dies are used to manufacture corrugated plates, then the manufacturing process is simple and easy to operate, but the material uniformity, fluency, and strength at corrugations and intersections are insufficient

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidmaterial uniformity and strength at corrugations
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent changes the forming method from simple bending and punching to a complex extrusion process using a shaping block with specific geometric parameters. The shaping block has a predetermined forming profile with rounded corners and specific curvature radii that control the material flow and distribution during forming, thereby improving material uniformity and strength at corrugation intersections while maintaining manufacturing feasibility

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces a dynamic speed correlation mechanism where the slide plate driving portion and shaping block driving portion are fixed relative to each other, creating a specific speed relationship between the moving components. This dynamic coordination ensures uniform material extrusion and prevents defects during the forming process, improving manufacturing precision without significantly complicating the manufacturing process

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If simple bending and punching dies are used to manufacture corrugated plates, then the manufacturing process is simple and easy to operate, but the strength at intersections of transverse and longitudinal corrugations is insufficient

Engineering Contradiction:
Improveoperation convenienceVSAvoidstrength at corrugation intersections
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The shaping block employs specific geometric parameters including rounded corners with defined curvature radii and a predetermined forming profile that optimizes stress distribution during extrusion. These parameter changes ensure uniform material flow and eliminate weak points at corrugation intersections, significantly improving structural strength while maintaining operational simplicity through automated driving mechanisms

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If a unique driving mechanism with correlated speeds is used, then material uniformity, fluency, and strength are improved, but the device complexity increases

Engineering Contradiction:
Improvematerial uniformity and fluencyVSAvoiddriving mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges the slide plate driving portion and shaping block driving portion into a fixed relative configuration, creating an integrated driving mechanism. This merging ensures automatic speed correlation between components without requiring complex independent control systems, thereby improving material uniformity and fluency while limiting the increase in device complexity through functional integration

Inventive Principle:
Principle #5Merging (Combining)

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

The apparatus produces corrugated plates with enhanced material uniformity, fluency, and strength at intersections, ensuring better sealability and stability for liquefied gas storage containers, particularly for marine equipment.

Implementation Method 1

a driving mechanism including: a slide plate driving portion in contact with the pair of slide plates; and a shaping block driving portion connected with the shaping block. The shaping block driving portion and the slide plate driving portion are fixed relative to each other, so that the slide plate driving portion drives the pair of slide plates to approach each other at a first predetermined speed, the shaping block driving portion drives the shaping block to move downward at a second predetermined speed

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12181105B2Processing apparatus, corrugated plate, and storage container
Publication Date: 2024.12.31 SINOTECH ENERGY CO LTD
  • US12181105B2 patent drawing
  • US12181105B2 patent drawing
  • US12181105B2 patent drawing

AI summary

Disclosed are a processing apparatus, a corrugated plate, and a storage container. The processing apparatus includes a pair of slide plates, a pair of press plates, a shaping block, and a driving mechanism. The driving mechanism includes a slide plate driving portion linked to a shaping block driving portion, allowing the slide plate driving portion drives the pair of slide plates to approach each other at a first predetermined speed, the shaping block driving portion moves the shaping block downward at a second predetermined speed, and the first and second predetermined speed are specifically correlated with respect to a predetermined forming profile of an intersection portion. The processing apparatus of the present disclosure causes running speeds of various portions that move in different directions to extrude a blank plate to be specifically associated, so that the formation process is particularly applicable to a corrugated plate having the predetermined corrugated shape.