[modeleng] Re: new post

There are a number of problems.
Some are technical, but the main one is that you will NEVER get a valid 
boiler test certificate in the UK, and without that will be unable to get 
insurance.

On the technical side, there are many good reasons why people stick to steel 
or copper for boilers.
Gor a start, to get the boiler tested and certified, unless you use a 
standard published design, you will need to submit drawings with full 
technical calculations.
Not an easy task unless you have experience in that field.

Then, the joining method (welding or silver soldering) will have to be 
checked and tested.

I could go on, but, for simplicity, stick to a published design at first.
Later, with experience you may wish to make changes in some areas, although 
the boiler is probably the one that should not be changed.

Alan Stepney

http://www.alanstepney.info
Model Engineering & steam engine information pages
----- Original Message ----- 
From: "JULIAN HARRISON" <julianharrison7@xxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Tuesday, October 24, 2006 2:55 PM
Subject: [modeleng] new post


Hi,

  I am new to model engineering and have a question re boilers. Is there any 
problem building a working steam boiler for a 2" or 3" scale traction engine 
completely from Aluminium. I have a good supply of all sizes for very little 
money. I am hoping to build the complete model almost entirely from ali and 
not paint it. Not using prototype just building from scratch. I can solder 
and weld ali so the joints are not a problem. Ali can withstand high 
pressures so is there any problen doing it and getting a boiler test 
certificate? All help and comments gratefully received

  Julian Harrison.


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