Dual-Material Heating Head for High-Temperature Soldering Durability
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Solution Overview
Problem
Existing electric soldering irons with copper wire heating elements are prone to damage due to the high temperature of the heated metal tip, which causes the copper wire to break and fail.
Innovation Solution
An electric heating device with a heating head comprising a first section of pure nickel and a second section of ferrochrome, both connected by a porcelain clay heat storage member, allowing for efficient heat generation and distribution without excessive heat damage to the nickel section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If copper wire is used as the heating element, then electrical conductivity is good, but the wire breaks easily due to thermal damage from high temperature
Solution Approach 1:
The heating element is divided into two distinct sections: a first section made of pure nickel and a second section made of ferrochrome. This segmentation allows each material to perform its optimal function - nickel provides electrical conductivity while ferrochrome withstands high temperature, thereby resolving the contradiction between electrical conductivity and thermal resistance.
Solution Approach 2:
The patent uses composite materials by combining pure nickel and ferrochrome in a single heating element structure. This composite approach leverages the advantages of both materials - the excellent electrical conductivity of nickel and the high-temperature resistance of ferrochrome - to create a heating element that is both conductive and thermally durable.
2Productivity
If high temperature is applied to generate heat, then heating efficiency is improved, but the copper wire is easily broken and damaged
Solution Approach 1:
Different sections of the heating element are assigned different material properties: the first section uses pure nickel for electrical conductivity while the second section uses ferrochrome for high-temperature resistance. This local differentiation of material quality allows the element to withstand high temperatures for efficient heating without suffering from the thermal damage that would affect a uniform copper wire structure.
3Power
If pure nickel is used for the first section, then electrical conductivity is maintained, but heat storage capability is insufficient
Solution Approach 1:
The patent merges two functional sections into one heating element: the pure nickel first section provides electrical conductivity while the ferrochrome second section provides heat storage capability. By combining these two materials in series, the heating element achieves both excellent electrical conductivity and sufficient heat storage capacity, resolving the contradiction between these two properties.
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 device achieves high heat generation efficiency and durability by using ferrochrome for heat conversion and porcelain clay for heat storage, preventing damage to the pure nickel section and ensuring the heating device operates effectively at high temperatures without failure.
Implementation Method 1
Heating is often achieved electrically, by passing an electric current through a resistive heating element via a metal wire
Implementation Method 2
The heat storage member is mounted around an outer radial periphery of the second section, and the heat storage member is made of porcelain clay
Data Source
AI summary
An electric heating device includes a body and a heating head connected to the body. The heating head includes an electric heating wire and a heat storage member. The electric heating wire includes a first section and a second section connected to the first section. The first section is made of pure nickel. The second section is made of ferrochrome. The heat storage member is mounted around an outer radial periphery of the second section. The heat storage member is made of porcelain clay. The electric heating wire is connected by sections of three different materials so that the heating head can be raised to a very high temperature with extremely high heat generation efficiency, and the electric heating device is not easily damaged by high temperature.