@TonyStewartSunnyskyguyEE75 Do you know the answer my last question I left open for everyone?

Yes I know how, but you never use ‘F

a little bit of research on heat mass convection & conduction cooling and radiant colour. Temp for verification.in ‘K

@TonyStewartSunnyskyguyEE75 So then I convert the units. No problem

@TonyStewartSunnyskyguyEE75 So then how do I calculate for heat produced by a set power on a set material? What formula? I've looked at the formulas Google pulls up but none are applicable in my case. So I must have missed something.

It's conduction for my case convention is liquids.

It's also not the heating of a material from an external source like a furnace. But more of resistance to heat produced by that natural resistance of the material in addition to the surrounding temperature variables.

Sorry I didn't add the important details before as I should have.

There are lots of missing physical details... drive.google.com/file/d/1D5_TkVKy_yCYYVf7s8Ml-ey8HQGeLbYh/view

Define weld Class ?

kJoules/mm depends on material, depth, flux, prep, wire dia., e.g. 2mm wire 600A@ 35V 400A @ 30V has ESR =(35-30V)/(600-400A) =2.5 mOhms

Yet absolute R = 35V/600A = 58 mOhms

whereas 1mm wire ESR~ 50mOhm , R = 111 mOhm , so what size are you using 3mm?

archive.org/download/gov.in.is.10178.1995/is.10178.1995.pdf

define water cooling rate limits

Define weld bead index

archive.org/download/DTIC_ADA247005/DTIC_ADA247005.pdf

and flux basicity index

and Oxygen content from CaCO3

C9a Weld ID? or ??

archive.org/download/DTIC_ADA247005/DTIC_ADA247005.pdf

So you want to control source impedance to match the desired impedance of the arc to the depth and quality of the welded material by some Arc ESR + R impedance such that arc Vf = Vt+If*ESR where energy rate kJ/mm=VI/mm at maximum power transfer is matched impedance and 50% efficiency so equal loss in current limiter in water as arc energy into weld = TBD ? you suggested 24kW to 2000'F? why so low but did not defined the variables above

like a zener or LED Vf=Vt+If*ESR (I call it ESR or Rs or Ri ) is a negative arc resistance and a positive electrode interface resulting in net low positive ESR while equivalent R is just V/I . ESR is controlled by arc length

Electrode quality matters . covered here archive.org/download/DTIC_ADA357854/DTIC_ADA357854.pdf

welding 6-inch thick HY-150 steel avoiding H2 induced cracking with SMA electrodes < 0.1% moisture NASA archive.org/download/NASA_NTRS_Archive_19730009745/…

NASA Electrode compositions archive.org/download/DTIC_ADA141724/DTIC_ADA141724.pdf

E14018 McKay was best there

So if your welder is 48Voc then ideal max power is 24Varc

but arc resistance depends on all those variables so supply if matched to load gives most stable kJ/mm rate or kJ/cm coverage

ttfn

I found two datasheet for BT136 triac but both didn't mention the T1 and T2 resistance (or I couldn't find it).

mouser.com/datasheet/2/302/BT136-600E-352978.pdf

radiotechnika.hu/images/BT136E.pdf

Can anyone please tell what is the T1 and T2 resistance for BT136 triac?

@adamaero The temperature sensor is inside the chip.

Looks like StackExchange finally implemented some type of vote viewership so we can see who voted on what. No more ghost voting! :)

Says N/A for me but perhaps that's because of having not enough rep?

@KingDuken, It doesn't tell you who voted up or down:

Just how many up and down on each day.

I think they don't want you to know explicitly who downvoted you so petty people don't go downvote the other guy's posts in retaliation, get into downvote wars with each other, etc.

Knowing who upvoted would also be a problem because it would make it easier to do a "I'll vote for yours if you vote for mine".

Diameter is 1/4 inch electrode down to 3/32 inch electrode. They are E6013 electrodes flat position only. But can be used in fillet welds if positioned correctly. Steel being welded with full to medium penetration is cast and medium grade steel. From 1 inch thick to 14 gauge steel.

I'll be continually filling in the information as today goes on. But I'll get all of the information soon. Today is a busy day

The 3/32 electrode releases more current than the 1/4 inch electrode does. The data I've collected tells me that.