Biopowered - vegetable oil and biodiesel forum

Biodiesel => Biodiesel equipment => Topic started by: Tony on July 13, 2012, 10:08:34 AM

Title: Steel immersion bosses
Post by: Tony on July 13, 2012, 10:08:34 AM
Mark pointed out to me that since they are so deep they can easily be cut in half to make two.  So mine are off with a mate for a bit of lathe work today :)  Two will become four!
Title: Re: Steel immersion bosses
Post by: Keef on July 13, 2012, 04:42:50 PM
:)  Two will become four!

Spice girls, 1996?
Title: Re: Steel immersion bosses
Post by: Tony on July 14, 2012, 09:43:29 AM
:)  Two will become four!

Spice girls, 1996?

Ah yes when Geri Halliwell was quite attractive - before she did the boney skinny thing!
Title: Re: Steel immersion bosses
Post by: Tony on July 16, 2012, 10:26:00 AM
Happy days :)

(https://lh6.googleusercontent.com/-A2qtecPr0aA/UAPL30lVb7I/AAAAAAAABCc/Rr4yyaVtnKc/s668/IMG_20120716_090707.jpg)

Will have a go at an inline heater using disposable gas bottle.
Title: Re: Steel immersion bosses
Post by: Julian on July 16, 2012, 03:13:01 PM
Nice job!

Don't forget to take lots of photos, we don't yet have a page on in-line heaters.

There's something I thought of a while back and never got round to trying.  It's for creating the shape of the hole where the inlet and outlet, tangentially intersect the body ... try setting up the pipe, just spaced above the body, and shine a light from directly above.  It may cast a shadow of the pipe on the body.

Be interesting to see if it works.
Title: Re: Steel immersion bosses
Post by: Tony on July 16, 2012, 05:00:27 PM
Hey that's a good idea.

I have a set of these HSS burrs to use making the odd port shapes prior to welding on the pipe:

http://www.ebay.co.uk/itm/HSS-Rotary-Burrs-5-piece-set-/120937802232

Cheap - will see how they perform vs the thick steel on those disposable argon bottles.
Title: Re: Steel immersion bosses
Post by: Julian on July 16, 2012, 07:59:56 PM
I used similar, but cheaper looking, ones on my (non)gas cylinder, after chain drilling the hole. 
Title: Re: Steel immersion bosses
Post by: Stumpy on July 22, 2012, 11:14:35 PM
Where can I get one from please chaps..   ::)
Title: Re: Steel immersion bosses
Post by: Tony on July 22, 2012, 11:18:06 PM
Mine were commissioned by Keith, but I think Steve (e3msb) sells them on VOD, £12 for one or £22 for two delivered.

I don't know if Steve's are big enough to machine down into two like Keith's were.
Title: Re: Steel immersion bosses
Post by: Stumpy on July 22, 2012, 11:24:58 PM
Cheers Tony Ill u2u them both and see ..
Title: Re: Steel immersion bosses
Post by: Julian on July 23, 2012, 09:54:59 AM
You could try the method shown at the bottom of this page ... http://www.biopowered.co.uk/wiki/Fitting_a_heater_flange
Title: Re: Steel immersion bosses
Post by: K.H on July 23, 2012, 07:06:53 PM
Cheers Tony Ill u2u them both and see ..
Sorry,all mine went a while ago and James has since had my tap,not sure if Steve has any and you would need to ask the size as the pic he uses is mine

This might be of interest
http://www.vegetableoildiesel.co.uk/forum/viewthread.php?tid=28278&page=1#pid368835
Title: Re: Steel immersion bosses
Post by: Julian on July 23, 2012, 07:58:15 PM
Keith, from your past experience, did you buy pipe the correct ID to be threaded with your tap?

I'm just wondering if they would be any more economical to produce by thread cutting on the lathe.
Title: Re: Steel immersion bosses
Post by: K.H on July 23, 2012, 08:19:24 PM
Keith, from your past experience, did you buy pipe the correct ID to be threaded with your tap?

I'm just wondering if they would be any more economical to produce by thread cutting on the lathe.
Yes i came across a short length (40") of 3" wide tube,internal diameter of 2 3/8 and walls of 8ml and they ended up been done on a lathe,thats why i let Jim have the tap,but as i dont have a lathe i was paying to have them made
Title: Re: Steel immersion bosses
Post by: Julian on July 23, 2012, 08:26:42 PM
Done on a lathe with your tap or with a thread cutting tool?
Title: Re: Steel immersion bosses
Post by: K.H on July 23, 2012, 09:24:30 PM
Thread cutting tool
Title: Re: Steel immersion bosses
Post by: Julian on July 23, 2012, 10:41:24 PM
Ho hum, yet another bright idea spirals down in flames to crash in the canyon of oblivion!
Title: Re: Steel immersion bosses
Post by: K.H on July 24, 2012, 07:32:53 AM
Ho hum, yet another bright idea spirals down in flames to crash in the canyon of oblivion!
Why?
I had to pay someone else to do it but you have a lathe if i remember correctly?
Title: Re: Steel immersion bosses
Post by: Tony on July 24, 2012, 07:43:55 AM
A chap at work was saying that some places sell pre-threaded pipe they'll cut to your specification - I wonder if Metal Supermarkets would do them?
Title: Re: Steel immersion bosses
Post by: Julian on July 24, 2012, 12:38:08 PM
Ho hum, yet another bright idea spirals down in flames to crash in the canyon of oblivion!
Why?
I had to pay someone else to do it but you have a lathe if i remember correctly?

I do, but the presumably the chap you paid knew what he was doing and had a far more substantial lathe than me.

I've not yet cut threads and the learning curve will be enormous, but I wouldn't mind giving it a go ...  don't suppose you've got any bits of pipe left, have you?

Title: Re: Steel immersion bosses
Post by: Julian on July 24, 2012, 12:47:22 PM
A chap at work was saying that some places sell pre-threaded pipe they'll cut to your specification - I wonder if Metal Supermarkets would do them?

I think he's probably referring to externally threaded pipe (not sure chow they would thread long lengths internally), but if they do 2¼" internal that would be great.  If the cutting charges are high, I've got a large mechanical hack saw which just needs a single phase motor fitting or a three phase supply, which would make light work of it!


Title: Re: Steel immersion bosses
Post by: Tony on July 24, 2012, 01:07:19 PM
No definitely talking about internally threaded pipe because he was the chap that lopped my bosses in half on his lathe.

My dad has a reciprocating mechanical hacksaw but it's nowhere near as impressive as FH Brundles hydraulically operated bandsaw that lops through even the big stuff as though it was cheese!
Title: Re: Steel immersion bosses
Post by: K.H on July 25, 2012, 06:31:48 PM
Ho hum, yet another bright idea spirals down in flames to crash in the canyon of oblivion!
Why?
I had to pay someone else to do it but you have a lathe if i remember correctly?

I do, but the presumably the chap you paid knew what he was doing and had a far more substantial lathe than me.

I've not yet cut threads and the learning curve will be enormous, but I wouldn't mind giving it a go ...  don't suppose you've got any bits of pipe left, have you?
Sorry all 40" of it was turned into flanges
Title: Re: Steel immersion bosses
Post by: K.H on July 29, 2012, 09:23:30 PM
Where can I get one from please chaps..   ::)

http://www.ebay.co.uk/itm/Stainless-Steel-316L-Immersion-Heater-Element-Flange-Backing-Nut-Bio-Fuel-/120943324386?pt=UK_BOI_FarmingEquipment_RL&hash=item1c28c8ace2#ht_500wt_1202
Title: Re: Steel immersion bosses
Post by: Tony on September 20, 2012, 02:01:28 PM
Also http://www.ebay.co.uk/itm/251151166555 but expensive