Tilt Casting Vessel Leveling for Laminar Metal Flow

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Solution Overview

Problem

Existing tilt casting methods often result in turbulence during the pouring of molten metal, which can impair the microstructure of the cast part.

Innovation Solution

A method where the molten metal is poured into the mold with minimal turbulence by ensuring the calm level of the metal is at the same height as the mold at the start, using a gate that extends over the mold cavity, and positioning the casting container and mold to allow a smooth, laminar flow, with optional pendulum movement and sensor-controlled leveling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the casting container is positioned higher than the casting mold to enable pouring, then the pouring process can be initiated, but turbulence occurs in the melt and the microstructure of the cast part is impaired

Engineering Contradiction:
Improvepouring process initiationVSAvoidmicrostructure quality
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The casting container is pre-positioned at the same level as the casting mold before pouring begins, and the melt surface is allowed to calm down in advance. This preliminary positioning eliminates the height difference that causes turbulence, allowing the melt to be poured quietly while maintaining ease of operation

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention positions the casting container and casting mold at the same gravitational potential level (same height), eliminating the height difference that drives turbulent flow. This equipotential positioning allows the melt to flow calmly from the container into the mold without the kinetic energy surge that occurs when pouring from a elevated position

Inventive Principle:
Principle #12Equipotentiality

2Productivity

If the casting container is tilted to start pouring, then the molten metal enters the mold, but the melt enters with high kinetic energy causing turbulence

Engineering Contradiction:
Improvepouring speedVSAvoidmelt flow stability
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The system pre-positions the casting container at the same level as the mold and allows the melt surface to calm down before pouring begins. This preliminary preparation enables the melt to be transferred at controlled speed without the kinetic energy surge that occurs with traditional tilting from an elevated position

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention employs dynamic control of the casting container positioning, using sensors to detect melt level and automatically adjusting the container position to maintain optimal pouring conditions. This dynamic adjustment ensures stable laminar flow while maintaining efficient pouring speed

Inventive Principle:
Principle #15Dynamics

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 prevents turbulence and irregularities in the casting process, ensuring a smooth and calm melt front, thereby improving the quality of the cast part.

Implementation Method 1

the molten metal is poured into a casting mold (3) with a mold cavity (4) depicting the cast part in accordance with the tilting casting principle

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

the casting container filled with the molten metal is moved towards the casting mold in a pendulum movement, with the pendulum movements taking place in the opposite direction to fluctuations in the molten metal

Methodology Applied
Scientific EffectPendulum motion: Pendulum

Data Source

PatentEP3003604B1Method and device for casting a cast part
Publication Date: 2018.10.03 NEMAK SAB DE CV
  • EP3003604B1 patent drawingFigure 1~2
  • EP3003604B1 patent drawingFigure 3~4
  • EP3003604B1 patent drawingFigure 5~7

AI summary

The invention relates to a method for casting a cast part according to tilt casting principles, wherein metal melt (1) is poured from at least one tiltable casting vessel (2) into a casting mould (3) having a mould cavity (4) that forms the cast part. In one step, the at least one casting vessel (2) and the casting mould (3) are arranged next to each other, and in a subsequent step the metal melt (1) is settled. The at least one casting vessel (2) and the casting mould are positioned in such a way that, before pouring the metal melt (1) from the at least one casting vessel (2) into the casting mould (3), a settled level (a) of the metal melt (1) in the at least one casting vessel (2) is at the same height as one section of an inner surface of the casting mould (3).