Coated Wire Resin Separation by Low-Temperature Alkali Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for separating metal wires from coated wires often result in poor metal quality due to oxidation, generation of corrosive gases, and inefficient processing, with issues such as fine cutting damaging equipment and incomplete carbonization of resin.
Innovation Solution
A method involving low-temperature heat treatment in a non-combustion atmosphere with an alkali to embrittle the coating resin, allowing for simultaneous heating and crushing of coated wires, which effectively separates the resin from the metal wire without oxidation and reduces gas generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the coated wire is finely sheared to peel the coating resin from the copper wire, then the coating resin can be separated from the metal wire, but the metal wire quality deteriorates due to fine pieces of coating resin remaining on the metal wire and the mechanical pressure of shearing
Solution Approach 1:
The invention changes the physical-chemical parameters of the coating resin by heating it to 80-150°C, which modifies its mechanical properties and makes it brittle. This parameter change allows the resin to be removed without mechanical shearing, thus avoiding contamination of the metal wire with resin particles while maintaining separation quality
Solution Approach 2:
The invention replaces the mechanical shearing system with a thermal treatment system. Instead of using mechanical force to peel the resin, the patent uses heat to embrittle the resin, making it easy to remove. This substitution eliminates the harmful mechanical pressure that causes resin particles to remain on the metal wire
2Manufacturing precision
If the coated wire is combusted to remove the coating resin, then the coating resin can be completely removed, but the metal wire quality deteriorates due to oxidation and corrosive hydrogen chloride gas is generated
Solution Approach 1:
The invention uses an inert or controlled atmosphere during heating to prevent oxidation of the metal wire. By controlling the atmospheric environment, the patent achieves complete resin removal through embrittlement without causing metal oxidation or generating harmful corrosive gases, thus protecting both metal quality and equipment
Solution Approach 2:
The invention changes the thermal parameters from high-temperature combustion to low-temperature heating (80-150°C). This parameter change allows the resin to embrittle and be completely removed without reaching combustion temperatures, preventing metal oxidation and reducing harmful gas generation while maintaining removal completeness
3Manufacturing precision
If the coated wire is heat-treated at high temperature to carbonize the coating resin, then the resin can be separated from the metal wire, but the treatment time is lengthened and the process becomes less efficient
Solution Approach 1:
The invention optimizes the temperature parameter to a moderate range of 80-150°C, which is sufficient to embrittle the coating resin and enable separation. This parameter optimization achieves effective resin separation without requiring prolonged high-temperature treatment, thus maintaining treatment efficiency and productivity
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 method efficiently recovers metal wires with improved quality, reduces gas treatment complexity, and lowers fuel costs by minimizing gas generation and enabling the reuse of resin as a fuel substitute.
Implementation Method 1
subjecting a coated wire, in which a metal wire is coated with a resin, to low-temperature heating in a non-combustion atmosphere in coexistence with an alkali to embrittle the coating resin
Implementation Method 2
it is possible to suppress the generation of corrosive hydrogen chloride gas and dioxins by a heat treatment in coexistence with an alkali
Data Source
AI summary
In this treatment method of a coated wire, a coated wire, which is a metal wire coated with a resin, is subjected to low-temperature heating in a non-combustion atmosphere in coexistence with an alkali to embrittle the coating resin, the embrittled coating resin is crushed, and the coating resin and the metal wire are separated.