Author Topic: Developing a Small Steam Plant  (Read 3701 times)

Offline gary.a.ayres

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Re: Developing a Small Steam Plant
« Reply #75 on: December 07, 2019, 05:38:06 PM »
It appears to be green at this end of the planet too.



Duralac Green. Preventing Corrosion Between Dissimilar Metals. In a Shed. Near You. Now.

Another handy tip (one of many) from MJM460.

 :ThumbsUp:

Offline gary.a.ayres

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Re: Developing a Small Steam Plant
« Reply #76 on: December 08, 2019, 08:43:13 PM »
A bit of progress today.

Yesterday the original flat brass handle of the water pump was glued into the slot in the new steel shank with Loctite 638. Today, I drilled two cross holes and tapped them M5. Two M5 screws were then secured in these holes using Loctite 2400 Threadlocker (blue in colour):



Tomorrow or the day after, when all the adhesive has set, I will cut off the ends of the scews and grind them flush with the shank. After that the plan is to machine a brass sleeve just long enough to cover this joint and fix it in place witth 638.

A locating ring for the water reservoir was machined, and this was fixed to the base board, as was the steam separator/feedwater preheater. The undersides of these (which directly contact the board) were smeared with silicone to prevent water from being drawn under the parts by capillary action. All points of contact between dissimilar metals (aluminium, brass and stainless steel screws) were treated with the ghastly green goo. Where the part fixed to the baseboard is brass, stainless steel screws were used, and where the part  is aluminium, the screws are brass. Just for the contrasty look. Having a couple of the main elements fixed to the board feels like a real step forward:




Offline propforward

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Re: Developing a Small Steam Plant
« Reply #77 on: December 08, 2019, 09:21:46 PM »
Some beautiful work in this thread Gary. Nice job.
Stuart

Offline gary.a.ayres

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Re: Developing a Small Steam Plant
« Reply #78 on: December 08, 2019, 11:43:54 PM »
Thank you very much Stuart. Very kind of you.

gary