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Mould Temperature #2

Posted: 29 Aug 2023 15:08
by MikeW1
So far I' haven't figured out how, if indeed it's possible, to add a photo plus comments as a reply to a post or not.
Surface TC REZ.jpg
Heat shelf.JPG
Guess another topic won't hurt anything though.

With a lot of experimenting with moulds, stem TC's, PIDS and a VOM. all of the few moulds I have responded well to a mould temperature of about 430° F. So present method is I don't use the little shelves I added to the pots years back as my recollection was I never more than 358° readings on of the shelf itself. I run the hotplate at 440°and can rest the mould for a break and it'll still be right where I want it when I get back.

Pots are set at 365° C and the feeder on at 366° and cast pot doesn't drop any while refilling it.

FWIW (probably not much!)

Re: Mould Temperature #2

Posted: 30 Aug 2023 05:14
by farmerjim
I also use a hotplate to preheat my molds. I also use it to preheat my lead ingots before adding them to the pot.

Re: Mould Temperature #2

Posted: 31 Aug 2023 04:31
by GasGuzzler
I tried the over-engineered, super complex route and it didn't suit me. Went back to basics and made better bullets.

Re: Mould Temperature #2

Posted: 31 Aug 2023 13:51
by larryw
GasGuzzler wrote: 31 Aug 2023 04:31 I tried the over-engineered, super complex route and it didn't suit me. Went back to basics and made better bullets.
Yup, same for me. Back to basics except for my PID. I sure do like the melt staying
at the same temp all the way down without constantly fussing with the pot's temp control.

Re: Mould Temperature #2

Posted: 28 Feb 2024 11:36
by horseman
An older thread but what the heck nothing else seems to be goin' on. Have to admit, haven't cast a bullet in a couple years but I used to do quite a lot. Most was wheel weight alloy and I ran my pot and moulds hot. Kept the melt between 700 and 725 degrees, ran the moulds hot as well. I went as fast as I could pour, drop, and refill the mould. Also never dropped sprues back into the melt. I kept a small dish with water and a damp wash cloth in the dish. Whenever the sprue's starting feeling a bit to "easy" I'd place the mold on the cloth for a few seconds to cool. Run a big sprue, and I mean big, sometimes (usually) the sprue would run the length of the mould. I made good bullets, and I liked them "frosty" looking. Just my method.