So its been awhile since I've made any silver bars for myself. But now I'm back into it. And a little more serious about it. Two years ago I started a small knifemaking business, so I built myself a small high temp oven/kiln for heat treating. And now it doubles as my melting furnace.
My question is.
I've melted this 500 gram bar 3 different times with slight changes in the process. I'm looking for the smooth top look, like the Perth Mint, or the RMC poured bars. I'm not a HUGE fan of the thick pour lines, and the deep trench in the middle is just unattractive. Here is my last pour. The silver itself was heated to 1975* F in the furnace. And then poured into a warmed graphite mold. A Mapp torch was over the pour the whole time, hoping to eliminate as much of the excces O2 as I could. Could someone give me some tips on how to get the look I'm going for? I've never done a pour this big before either. I've only really done, 1 through 5 oz pours in the past.
Thanks!
https://www.flickr.com/gp/153417584@N05/8gfHqv
My question is.
I've melted this 500 gram bar 3 different times with slight changes in the process. I'm looking for the smooth top look, like the Perth Mint, or the RMC poured bars. I'm not a HUGE fan of the thick pour lines, and the deep trench in the middle is just unattractive. Here is my last pour. The silver itself was heated to 1975* F in the furnace. And then poured into a warmed graphite mold. A Mapp torch was over the pour the whole time, hoping to eliminate as much of the excces O2 as I could. Could someone give me some tips on how to get the look I'm going for? I've never done a pour this big before either. I've only really done, 1 through 5 oz pours in the past.
Thanks!
https://www.flickr.com/gp/153417584@N05/8gfHqv