High Frequency Welding Machine - Electronic Circuits Projects Diagrams Free

frenchneco · 1st March 2008, 08:06 AM

i googled this thing but i can't find any circuit of this project. can anyone help or provide a circuit? ^_^

jpanhalt · 1st March 2008, 11:29 AM

Go to millerwelds.com

Find a model name for a TIG welder with HF start similar to what you want to do. Go to the owner manual section and download. Miller includes schematics in their manuals. It will ask you for a serial or model number, but you can leave that blank. For example, here is the manual for the syncrowelder 350:

http://www.millerwelds.com/om/o352f_mil.pdf

John

motherhugger · 4th March 2008, 12:47 PM

what about ur 3 digit counter?

philippines mabuhay

frenchneco · 4th March 2008, 01:32 PM

Quote:

Originally Posted by motherhugger

what about ur 3 digit counter?

philippines mabuhay

Non-English deleted - Moderator.

frenchneco · 4th March 2008, 01:34 PM

Quote:

Originally Posted by jpanhalt

Go to millerwelds.com

Find a model name for a TIG welder with HF start similar to what you want to do. Go to the owner manual section and download. Miller includes schematics in their manuals. It will ask you for a serial or model number, but you can leave that blank. For example, here is the manual for the syncrowelder 350:

http://www.millerwelds.com/om/o352f_mil.pdf

John

thanks for the pdf. we're only having a simple one. the circuit will just go ===> oscillator(100khz,astable,using 555) to a MOSFET (configured to output 6 amps)

mrmonteith · 4th March 2008, 06:18 PM

Oh boy, you're talking something I remember all too well. Look up "RF Sealing Machines". If it's anything like what we had it was a high power RF energy going through a coil. The coil and RF going through it heated up whatever was inside the coil. In our case it was making glass to metal seals for photomultiplier tubes for the nightvision goggles.

These things had huge vacuum tubes with large glowing electron beams in them. Nasty stuff. One guy was working on one and got crossways in something and people said blue flames shot out of his chest. He lived. But then they told me to work on it. One of those times I really didn't want to work on electronics. lol

Michael

frenchneco · 6th March 2008, 02:03 PM

Quote:

Originally Posted by mrmonteith

Oh boy, you're talking something I remember all too well. Look up "RF Sealing Machines". If it's anything like what we had it was a high power RF energy going through a coil. The coil and RF going through it heated up whatever was inside the coil. In our case it was making glass to metal seals for photomultiplier tubes for the nightvision goggles.

These things had huge vacuum tubes with large glowing electron beams in them. Nasty stuff. One guy was working on one and got crossways in something and people said blue flames shot out of his chest. He lived. But then they told me to work on it. One of those times I really didn't want to work on electronics. lol

Michael

encouraging words there bud. lol. yep, this is quite dangerous. how many amperes can the coil produce? vacuum tubes?! when was this project made? like a decade ago? lol.
oh yeah, i forgot something. in between the oscillator & mosfet is a DC chopper. guys, i really don't have an idea about what i'm talking here. so please help. =)

mrmonteith · 6th March 2008, 02:11 PM

Guy, I've slept too many times since then. As far as vacuum tubes there are still places that that's what it takes to get raw power. The tubes I'm talking about were about 18" tall and had a huge beam inside. I'm sure we're talking way in the kilowatt range. I suspect you find RF sealing machines you'll still find a tube like that in it. The coil, if I remember right was made out of metal about 1/2" diameter, about 8 or 10 turns with about a 3" gap in the middle. That's where they set the glass and metal parts to seal to each other.

I'd be interested to find out how it turns out.

Hero999 · 7th March 2008, 09:49 AM

Microwave ovens contain a magnetron which is a kind of valve or vacuum tube.

They are also used in radars and large UHF TV transmitters and are more efficient (at UHF) and robust than solid sate devices.

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1st March 2008, 08:06 AM	(permalink)
frenchneco	High Frequency Welding Machine i googled this thing but i can't find any circuit of this project. can anyone help or provide a circuit? ^_^

1st March 2008, 11:29 AM	(permalink)
jpanhalt	Go to millerwelds.com Find a model name for a TIG welder with HF start similar to what you want to do. Go to the owner manual section and download. Miller includes schematics in their manuals. It will ask you for a serial or model number, but you can leave that blank. For example, here is the manual for the syncrowelder 350: http://www.millerwelds.com/om/o352f_mil.pdf John

4th March 2008, 12:47 PM	(permalink)
motherhugger	what about ur 3 digit counter? philippines mabuhay

4th March 2008, 06:18 PM	(permalink)
mrmonteith	Oh boy, you're talking something I remember all too well. Look up "RF Sealing Machines". If it's anything like what we had it was a high power RF energy going through a coil. The coil and RF going through it heated up whatever was inside the coil. In our case it was making glass to metal seals for photomultiplier tubes for the nightvision goggles. These things had huge vacuum tubes with large glowing electron beams in them. Nasty stuff. One guy was working on one and got crossways in something and people said blue flames shot out of his chest. He lived. But then they told me to work on it. One of those times I really didn't want to work on electronics. lol Michael

6th March 2008, 02:11 PM	(permalink)
mrmonteith	Guy, I've slept too many times since then. As far as vacuum tubes there are still places that that's what it takes to get raw power. The tubes I'm talking about were about 18" tall and had a huge beam inside. I'm sure we're talking way in the kilowatt range. I suspect you find RF sealing machines you'll still find a tube like that in it. The coil, if I remember right was made out of metal about 1/2" diameter, about 8 or 10 turns with about a 3" gap in the middle. That's where they set the glass and metal parts to seal to each other. I'd be interested to find out how it turns out.

7th March 2008, 09:49 AM	(permalink)
Hero999	Microwave ovens contain a magnetron which is a kind of valve or vacuum tube. They are also used in radars and large UHF TV transmitters and are more efficient (at UHF) and robust than solid sate devices. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here.