Induction Shield for Amorphous Alloy Melting

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Solution Overview

Problem

In the process of melting materials using induction heating, energy dissipates and heat is not fully utilized, leading to inefficiencies and unwanted heating of surrounding parts due to the emission of radiofrequency waves in multiple directions from the induction coil.

Innovation Solution

An induction shield is positioned adjacent to the induction heat source and vessel to absorb and redirect emissions, reducing stray electromagnetic fields and improving energy efficiency by containing heat within the melting area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If an induction heater or coil is used to heat a boat, then the material within the boat can be melted, but radiofrequency (RF) waves are released in many directions from the coil causing heat loss and heating of surrounding parts

Engineering Contradiction:
Improvemelting temperature of materialVSAvoidheat loss from RF waves
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

An induction shield is introduced as an intermediary component between the induction coil and the surrounding environment. The shield is positioned adjacent to the boat and configured to intercept and redirect RF waves that would otherwise dissipate in multiple directions, thereby reducing energy loss while maintaining the heating effect on the material.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention converts the harmful stray RF emissions into a beneficial concentrated heating effect. The induction shield captures RF waves that would normally represent energy loss and redirects them toward the boat, transforming waste energy into useful heating that improves melting efficiency.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Temperature

If an induction heater or coil is used to heat a boat, then the material within the boat can be melted, but surrounding parts in the machine or device are heated

Engineering Contradiction:
Improvemelting temperature of materialVSAvoidheating of surrounding parts
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The induction shield serves as a protective intermediary that blocks and redirects RF waves before they can reach surrounding machine parts. By positioning the shield adjacent to the boat, it creates a barrier that confines the electromagnetic energy to the intended heating zone, preventing unwanted heating of adjacent components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention extracts and isolates the harmful RF emissions from the useful heating function. The shield separates the directed heating effect on the boat from the stray emissions, effectively removing the harmful aspect while preserving the beneficial melting process.

Inventive Principle:
Principle #2Taking out (Extraction)

3Use of energy by moving object

If heat is not fully utilized by the material to be melted, then energy is wasted, but reducing heat loss requires additional components

Engineering Contradiction:
Improveenergy utilization by materialVSAvoidaddition of shield component
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

A relatively simple intermediary component (the induction shield) is added to dramatically improve energy utilization. The shield's straightforward design and positioning adjacent to the boat provide substantial energy savings by redirecting RF waves, demonstrating that a minimal addition can yield significant efficiency improvements.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the spatial distribution parameter of the RF energy field by introducing the shield. This geometric modification redirects energy flow patterns, concentrating heat where needed and reducing waste, thereby improving energy utilization without complex system redesign.

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

The induction shield significantly reduces heat loss and improves the efficiency of the melting process by minimizing unwanted heating of surrounding parts and optimizing energy use, resulting in a more uniform and efficient melting of materials.

Implementation Method 1

an induction source positioned adjacent the vessel and configured to melt the meltable material received in the melting portion

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The shield is configured to substantially reduce emissions emitted from the induction heat source during use

Methodology Applied
Scientific EffectElectromagnetic radiation absorption: Absorption (EM radiation)

Data Source

PatentUS9955533B2Induction shield and its method of use in a system
Publication Date: 2018.04.24 CRUCIBLE INTPROP LLC
  • US9955533B2 patent drawing
  • US9955533B2 patent drawing
  • US9955533B2 patent drawing

AI summary

An induction shield is configured to substantially reduce emissions emitted from an induction heat source (e.g., coil) during use. The shield is positioned adjacent to a vessel (e.g., in an injection system) having a melting portion configured to receive meltable material to be melted therein and an induction heat source positioned adjacent the vessel configured to melt the meltable material received in the melting portion of the vessel. The shield may include a tube configuration configured to flow liquid therein to absorb heat emitted from the heat source. The tube configuration can comprise a single tube or multiple tubes. The shield can be positioned adjacent the induction source in a helical manner, for example, or at ends of the vessel. The shield can be used during melting of amorphous alloy and for forming a part.