Remelting Plant Guide Column Tilting for Electrode Centering

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Solution Overview

Problem

Existing remelting plants face challenges in centering electrodes within crucibles due to large plant height and electrode rod diameter, as well as limitations in precise weight measurement and process control, leading to inefficiencies and potential impurity deposition.

Innovation Solution

A remelting plant design featuring a guide column articulatedly connected to a rotary column, allowing for tilting and rotation of the furnace and electrode rod system, with a weighing device integrated at the guide column's end to ensure precise weight measurement and centering of the electrode within the crucible, while maintaining a low plant height and small electrode rod diameter.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional electrode rod arrangements with outer sheath and inner part are used for centering, then electrode centering in crucible is achieved, but plant height and electrode rod diameter increase significantly

Engineering Contradiction:
Improveelectrode centering precisionVSAvoidplant height
Core Design Contradiction:
Manufacturing precisionVSLength of stationary object

Solution Approach 1:

The invention extracts and eliminates the outer sheath from the traditional electrode rod arrangement. Instead of using a complex two-part structure (inner part and outer sheath), the patent employs a single solid electrode rod that is directly guided by the guide column, removing the unnecessary outer sheath component and its associated space requirements

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The guide column acts as an intermediary element between the electrode rod and the crucible. It provides direct guidance and centering functionality, eliminating the need for the electrode rod's own centering mechanism (outer sheath). The guide column mediates the positioning function, allowing the electrode rod to be simpler and more compact

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If traditional electrode rod arrangements with outer sheath and inner part are used for centering, then electrode centering in crucible is achieved, but electrode rod diameter increases

Engineering Contradiction:
Improveelectrode centering precisionVSAvoidelectrode rod diameter
Core Design Contradiction:
Manufacturing precisionVSLength of moving object

Solution Approach 1:

The outer sheath is extracted and removed from the electrode rod structure. The centering function is transferred to the guide column, allowing the electrode rod to have a smaller diameter without compromising centering precision

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The guide column serves as an intermediary that provides the centering guidance, freeing the electrode rod from needing to incorporate its own centering mechanism. This reduces the electrode rod diameter to only what is necessary for structural integrity and electrical conduction

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If weighing device is positioned to measure electrode weight during remelting, then process control is enabled, but impurity deposition occurs in free space between sheath and inner part

Engineering Contradiction:
Improveelectrode weight measurementVSAvoidimpurity deposition
Core Design Contradiction:
Measurement precisionVSObject-generated harmful factors

Solution Approach 1:

The harmful free space between the outer sheath and inner part is eliminated by removing the outer sheath entirely. This prevents impurity deposition in the annular space while maintaining the weighing function through the guide column integration

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The guide column serves as an intermediary structure that integrates both the weighing function and the guidance function. By positioning the weighing device at the top of the guide column, the system measures electrode weight without creating harmful spaces where impurities could deposit

Inventive Principle:
Principle #24Intermediary (Mediator)

4Strength

If large electrode rod diameter is used for structural stability, then mechanical strength is improved, but plant height and installation space increase

Engineering Contradiction:
Improveelectrode rod structural strengthVSAvoidplant height
Core Design Contradiction:
StrengthVSLength of stationary object

Solution Approach 1:

The guide column acts as an intermediary support structure that provides mechanical stability and guidance for the electrode rod. This allows the electrode rod to have a smaller diameter while maintaining structural stability through the guide column's support, thereby reducing plant height and installation space requirements

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables precise process control and efficient electrode centering, reducing impurity deposition and plant height, while maintaining a compact design and accurate weight measurement, thereby improving the remelting process.

Implementation Method 1

a weighing device (26) arranged in the region of the first end of the guide column (30)

Methodology Applied
Scientific EffectWeight measurement:

Implementation Method 2

The guide column (30) is articulatedly connected at a first end to a rotary column (18) such that the guide column (30) can be tilted in relation to the rotary column (18) and can be rotated together with the rotary column (18)

Methodology Applied
Scientific EffectArticulated connection enabling tilting and rotation:

Data Source

PatentUS11952644B2Remelting plant and method for operating a remelting plant
Publication Date: 2024.04.09 ALD VACUUM TECH GMBH
  • US11952644B2 patent drawing

AI summary

The invention relates to a remelting plant comprising a furnace chamber (50), which can be positioned over a crucible (60) of a melting station, an electrode rod (48), which by way of a lead-through (52) can be inserted or is inserted in the furnace chamber (50), in order to contact a consumable electrode (58), and a guide column (30), on which an electrode rod carriage (40) that is fixed-ly connected to the electrode rod (48) is guided in an axially movable manner, in order to move the electrode rod (48) in relation to the furnace chamber (50), and on which a chamber carriage (38), which is connected or can be connected to the furnace chamber (50), is guided in an axially movable manner, in order to move the furnace chamber (50). The guide column (30) is articulatedly connected at a first end to a rotary column (18) such that the guide column (30) can be inclined in re-lation to the rotary column (18) and can be rotated together with the rotary column (18) about the axis of rotation (24) of the rotary column (18). The guide column (30) has in the region of the first end a weighing device (36), which is preferably attached to the rotary column (18).