Hi Maurice,
until I get clear explanations from an expert, I will probably experiment around a bit. Just not on antique toy steam engine. That is too risky for me and, in case of damage, unforgivable.
"Stoomwereld" is by the way an interesting side, about which I am about a year ago times gestopert.
I wonder what recipes Josef,Jean,Ernst,Georges and Ignaz were using, maybe these are lost secrets.
I have also often asked myself the question of which bruisers the old guys from Nuremberg and Göppingen used at the time. Someone should have asked 60 -70 years ago. At that time, some employees of the Great Nuremberg 8 and Märklin from Goeppingen were still alive. But that obviously did not happen. The interest was not there. Too bad!
Regards
The book is
Henley’s Twentieth century
book of
Formulas , Processes
and
Trade secrets
Nearly 900 pages of info
Let me know if these photos work as there are more to come
Hi Scorpion2nz,
Thats nice lecture, thanks for sharing !
Maurice
Hello KNO3,
also from me a thank you for your contribution. I am familiar with the Bruennier agent from Regner. I have not used it so far because the blueing effect of the antique machines is not achieved so well with it in my opinion.
The Regner kettles are usually all blackened. A trademark of the company. The blackened boilers and the machines look very good. I like it. But with the old machines, the effect looks different.
But my thoughts are also very theoretical and I am happy to be proven wrong by practice.
Stay Healthy
Hi Jurgen,
The oxide layer is so incredibly thin that I really doubt that is does any harm to the boiler.
In fact, if you are not careful it can be wiped of just by rough handling.
It actually happend to me and I have re-done some various times, never noticed any damage by the chemical agents.
I did noticed that the soldered parts do show some reaction with the chemicals, preventing proper oxidation of the brass, but no damage.
Regards,
Maurice.
Hi KN03,
Great, that's the recipe:
Steel blue is achieved by "Boiling solution chloride of arsenic"
Sounds bad, very 1900's
Maurice.
Hello Maurice,
there must be a reason why there are different Bruennier agents for ferrous/steel metals and non-ferrous metals. Perhaps the difference lies in the different effects on the metals. The durability/longevity of the bruennier layer may depend on this.
We should consult the all-knowing Internet on this, or try to find technical literature similar to that of Dennis. Experimenting is expensive and costs a lot of time. Searching for literature may be too. Staring into a crystal ball will not bring us any further...
Many greetings
PS: I just saw, ScorpioNZ seems to explain us with contributions from his book. Many thanks for that Dennis.
I make no comment or recommendation as to suitability of procssses .
But rather what i have found
There are various options we could try
Hello Scorpion2NZ, Hello Maurice,
maybe we should stare into the crystal ball. The book seems to lead us straight into the witch's kitchen. What are we brewing together? I'm in!
Thanks for the info Maurice!
No, only this colour. But if you leave it for just a short time, it gets less intense.
In the book of thing mentioned above the brass section starts on page 127