I'm not so sure but venture to say this: It is a blow torch, of course, so somthing is heated up. No core in yet, so can't be the complete frame. Only thing left over is the ring mount. We know that this was done first to hold the parts together then the core was slipped in and then the whole cross was soldered.
I couldn't think of anything else this picture represents. It makes sense, by the way, to arrange the crosses in such an overlapping way. This allows the heat to travel from cross to cross and makes the process faster.
Great pics, the last one is definitely some kind of Torch. Possibly to heat the metal so it will expand allowing the placement of the core to the center. When the metal cools it would contract around the core.......thus trapping the core in place. Just a thought...........I know it is a method used by some blacksmiths.
Edit.........that might explain why many ek11's rattle....
Interesting pics but you guys have to help me out with a few questions I have when looking at them.
1.In the first pic we see rims being stamped IN to a quadrangel piece of metal. Why werent they stammped OUT right away?
2. In picture 3 we see heaps of these quadrangel stamped IN pieces situated on the right side. however the worker is busy with treating stamped OUT rims. So which step did we miss. This guy doesn't seem to have any tools on his vicinity to trim the rimms out of the metal. How was this done?
3. Are we looking at EK cores in picture 2? They look more like KVK's to me
I would sugest that the process with the blow tork is when the flux is being added before the two parts are joined. The overlap has two jobs, as said utilising the heat. Also the two halves will be soldered together.
I would sugest that the process with the blow tork is when the flux is being added before the two parts are joined. The overlap has two jobs, as said utilising the heat. Also the two halves will be soldered together.
As the cross lying down furthest left indicates, there is no core in these frames yet - so heating the flux of this many pieces at this point in assembley would not make sense.
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