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Member

Join Date: Apr 2009
Posts: 6

HHO WELDER

04/05/2009 6:18 AM

Where can I get plans to built a HHO welder DIY that will actually work with a blowtorch? Do you have a list of members that live in South Africa that I could contact? My email: sheikh@global.co.za

Thx

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Guru

Join Date: Mar 2008
Location: Sebring, Florida
Posts: 923
Good Answers: 25
#1

Re: HHO WELDER

04/06/2009 10:13 AM

In the USA these things are called water torches. There are things called oxy-hydrogen torches but they are used for such things as treating glass to remove scratches and deformities.

As for the plans, I hope someone will respond to your request. I am sure that several of us would consider this issue as keeping a couple of oxygen and acetylene tanks around long enough to use the fuel up can be expensive, unless you have purchased the ownership rights.

TooMuchFun

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Guru
Australia - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Sep 2006
Location: NSW Australia
Posts: 1101
Good Answers: 23
#2

Re: HHO WELDER

04/06/2009 10:28 AM

I am sure there are a lot of sites on the internet. However I would advise great care with this method if you are producing Hydrogen by electrolyse the mixtures are very explosive. I think from memory the flame front speed of an Hydrogen Oxygen mixture is 15km/sec.

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Guru

Join Date: Mar 2008
Location: Sebring, Florida
Posts: 923
Good Answers: 25
#3
In reply to #2

Re: HHO WELDER

04/06/2009 2:56 PM

Hello Garth,

Hello Garth,

I will not bother to calculate the 15km/sec as I still like to use as many of the quantity/speed/measurments as are convient to me an individual who is schooled here in the good ole U S of A. As such I prefer to refer to Dr William A. Rhodes calculations regarding the flame front speed to the oxy-hydrogen single duct gas. That speed is mach 7.5. You may fee free to calculate that conversion to km/sec if you wish. Believe it or not "MOST" are not aware that the phenomonon that we call the single duct oxy-hydrogen gas was first produced prior to 1850.

The interesting point is that no one bothered to create or patent the current device that produces the gas in sufficient quantity and speed to utilize the benefit of the extreme heat. That is to say until 1962 when the good Dr Rodgers, who had been retained by a MR. Hennes of Arizona to find a more effective fuel for use as a metal cutting source. Said heat was measured to be greater than 3550C/6422F enough to melt carbon but not attaining enough heat 4827C/8720F to boil carbon. The good late Dr. Yule Brown also patented this fuel source, but his patents are over come by Dr. Rhodes patents by a mear 11 years. Lots of folks from the Engineering segment of CR 4 and else where are not aware of this fact.

TooMuchFun

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Guru
Australia - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Sep 2006
Location: NSW Australia
Posts: 1101
Good Answers: 23
#4
In reply to #3

Re: HHO WELDER

04/07/2009 7:03 AM

Hi tomuchfun,

Your reply made me think I had better check my memory, I knew it was fast but not as much as I said. 2.487 km/sec would have been better.

It is a pity that the mixture is no good for steel welding but as you say for cutting it works well.

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