At
GWN our production methods are monitored rigorously and our strict
quality control procedures guarantee that we meet the exacting specifications
our customers insist upon.
As
can be seen in the table below, GWN High Purity Solder meets or
exceeds in all respects, the requirements of the relevant European
Standard. (This standard does not demand the use of virgin materials.)
Extensive
research over many years has shown that even these permitted levels
of impurities can produce detrimental effects in soldering production
techniques. Put simply, purchase of inferior and initially cheaper
solder could result in the premature need to change your solder
bath.
Our
unique manufacturing process ensures that existing trace impurities
in the raw materials are significantly reduced in content. We then
ensure that these lower levels are consistently maintained giving
the following advantages:
*
Low operating temperatures
* Improved wetting giving consistency of performance
* Production of bright joints with low contact angle
* Reduction of tendency to icicling and bridging
* Reduced consumption
* Longcr bath Iife
* Reduced drossing (virtually none with initial melt) with low rate
of surface
oxidation
The
latest generation of Lead Free alloys are also available, &
are manufactured using metals of similar purity to give optimum
performance.
Specification
comparison for best quality High Purity Wave Solder Ingots |
Element |
|
BS EN 29453
Alloy No.1/1a
|
GWN
Typical Analysis |
|
|
|
% |
|
% |
Made
from best quality virgin Tin/Lead
Tin 99.965% Lead 99.999% purity.
Manufactured to surpass all standards
and quality specifications for this kind of product |
Tin
|
Sn |
62.5
to 63.5 |
Sn |
63
to 64 |
Antimony |
Sb |
0.05
max |
Sb |
<0.05 |
Cadmium |
Cd |
0.002
max |
Cd |
<0.001 |
Zinc |
Zn |
0.001
max |
Zn |
<0.001 |
Aluminium |
Al |
0.001
max |
Al |
<0.0001 |
Bismuth |
Bi |
0.05
max |
Bi |
<0.01 |
Arsenic |
As |
0.03
max |
As |
<0.001 |
Iron |
Fe |
0.02
max |
Fe |
<0.001 |
Copper |
Cu |
0.05
max |
Cu |
<0.001 |
Silver |
Ag |
) |
Ag |
<0.001 |
Gold |
Au |
)
others |
Au |
<0.001 |
Nickel |
Ni |
)
total |
Ni |
<0.001 |
Phosphorus |
P |
)
0.08% |
P |
<0.001 |
Sulphur |
S |
) |
S |
<0.0004 |
Recommendations
While
it is not usually recommended to mix solders of different origins,
it is often impractical to scrap solder baths for the sole purpose
of introducing a new High Purity Alloy however desirable the qualities
and advantages of our product may be. We therefore suggest that
the relative purity of your solder in use is determined, and if
it has been manufactured from virgin metals then High Purity Alloy
can be added immediately. Of course, not all of the superb benefits
of High Purity Alloy will result, but you will see an improvement
in the quality of your solder - and indeed the quality of your production.
In addition, it will prolong the life of your solder bath.
Analytical
service
The
purity of your solder can be most easily discovered by allowing
GWN to carry out a comprehensive analysis in our own fully equipped
laboratory.
We will then provide a complete report and make our recommendations,
In fact it has been our standard practice for many years to analyse
our customers solder at regular intervals free of charge. This is
not only to monitor the growth of impurities, but also to cheek
for tin depletion, a completely natural phenomenon. This way we
can keep you properly informed about the condition of your solder,
and ensure prompt action if needed. It goes without saying that
you can always call on full technical support either directly from
our head office, or our appointed distributor.
Your solder waste
The
safe and legal disposal of your waste solder will not be a problem
to us. We automatically supply existing and prospective customers
with free issue waste solder bins. These containers comply with
the Health & Safety Regulations and are leak-proof, have welded
seams and gasket seals in the lids. When delivering your order,
we collect the waste and credit your account in due course.
All waste material is recycled for use exclusively to the general
industrial market.
|