Member postings for Harry Wilkes

All suffer from dezincification !

I think you will find that if the 'fitting' come into contact with the boiler water then gun metal or bronze if required and I personal would not use stainless fasteners on a boiler.

Like it

Roger now that's a hard question I'm talking of the automatic plating plans the length of time the load would have spent in the cleaning station would have depended on the surface condition let's say 5-6 mins so from this I would suggest it would have been around a minute, just try it give it so long have a look give it more in you think it needs it.

Anodic cleaning will not hard the work other than you remove the surface of the part but in saying that you would have to leave it in for hours to remove a few microns ! The plating plating I work on if they didn't have a PR then the cleaning would alway be 'anodic' and at home I clean parts in a small probably like you but I always use the anodic setup. You might find this link of interest

H

In my case I was able to block off one end leaving the other open for expansion this was then sealed before any bending took place

H

Try using 'anodic' cleaning just before removing the piece from the bath ! Why ! I vaguely remember from my time in the plating shop the electro cleaning was done by using periodic reverser these changed the cleaning bath from anodic to cathodic several times while the work was in the bath but it was only removed from the bath in the anodic state this I think was done to remove such film the parts was then only be wash in hot water.

H

I have in a past life (when working) needed to make some tight bends on copper pipe too make induction coils I tried various method and found I got the best results filling the tube with water and putting in a freezer in fact this method worked so well I purchased a chest freezer, which also proved very useful in the maintenance dept in the summer moths

There was a video on youtube of a company making trombones by freezing the pipework.

5/32 is very close to 4mm you can get 5/32 elbows here also Macc Model eng supplies and Live Steam Models do them

H

I do use an optivisor over varifocals and have to say I find I struggle to see in focus maybe this being down to the size of my lenses and frames.

H

Hi John I have some small wedges fitted to my PVC doors never really took much notice of them other than they are left loose to slide on the bottom trim so now you have made the point about the door dropping how far if from the edge of the door do you recommend I fix them ?

H

Hello and welcome.

H

Hello and welcome.

H

Merry Christmas to one and all

H

Mike never tried oil but saw it done on a youtube vid once and the guy demonstrated the process but he did it with used motor oil !

H

Mike like the sound of the chip shop but not the fire bit

H

Steve dont know about a Big Mac on Christmas but my local pizza house is open on Christmas day

H

College Engineering do cast blanks link sizes but no prices and overall naff website

H

Ok this requires some heat but worth taking a look link

Merry Christmas to All

H

I was given some a couple of years back the pink coating was the flux and I used them without any problems on brass and copper just wish I had more due to their easy use

H