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+44(0)1822
613555 |
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+49(0)77
24 934 125 |
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info@aci-ecotec.co.uk |
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info@aci-ecotec.de |
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| Technical notes... |
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| 1.
Soldering Definition |
Soldering and welding are metallurgical
joining techniques. The terms denote a material connection that
is based upon molecular connective forces. When welding, the
parts to be connected are melted (welded) into another or connected
to each other while in a pliable, doe-like condition by the
use of force.
Electronics have pervaded practically all areas of our daily
lives and have thus become a supporting column and an essential
technology for technical progress. The creation of conducting
connections
between components or subassemblies is a central task in the
manufacturing of electronic devices. In this regard, soldering
acquires exceeding significance. It is therefore natural that
trained personnel
that are active in electronic development or production are
continually confronted with the topic of connecting technology.
In can be noted from experience, however, that the discipline
of soldering, in theory and in practice, is somewhat neglected
in the highly qualified training of electrical engineers. So
it’s no surprise that companies often experience a deficit
on know-how when it comes to specific questions about soldering
or soldering automation. Especially in the field of automatic
spot soldering, incomplete knowledge leads to unused rationalizing
potential, and expense-reducing resources
remain untapped. But questions on quality and the securing of
continuous production processes also demand detailed knowledge
and expert know-how.
This document should contribute to helping the production specialists
acquire the needed specific knowledge on the subject of automatic
spot soldering, along with the set-up and operation of the ecoSolder
– Soldering system. At the same time, unnecessary theoretical
ballast should be discarded and the main concentration should
be upon practical questions regarding the production technology
itself and the operation of the soldering system. |
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| Spot welding procedures
that can be automated: |
| Automatic iron soldering |
HF induction soldering |
| Mini wave |
Radiation soldering |
| Solder bath soldering |
Hot-gas soldering |
| Micro flame soldering |
Resistance soldering |
| Thermo compression soldering |
Stamp soldering |
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| Soldering
Basics |
The metallurgical soldering joining technology
follows strict physical laws. Just as a body only swims when
it displaces more water than its own body weighs, so can a good
soldering joint only come to be when the physical requirements
are fulfilled. These prerequisites can be subdivided into:
• metallurgical fundamentals
• thermodynamic
fundamentals
• chemical fundamentals
• geometrical
fundamentals
In addition, the requirements of the soldering tools and/or
processes as well as of the automation technology have to be
considered. Looked at this way, soldering is quite a complicated
matter. There are influences and specifications from all fields
to be considered and, at least partially, to be coordinated
in order to achieve the targeted result of a dependable connection.
As a rule, a soldering point must fulfill two requirements:
good electrical conductivity and sufficient, lasting mechanical
durability under the application conditions. The process itself
must ensure that the parts to be joined and the environment
are not damaged, and also no harmful consequences result. |
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| Soldering Points - Metallurgy |
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