Hi Metalscrapper! I melted and cast some copper yesterday. Thanks for your instruction! And today, I got my official Metalscrapper T-Shirt! So now I can melt and cast in Metalscrapper uniform! Have a great day!!! Bob
Great to hear you have melted some copper. Glad my video's are not only entertaining, but also usefull 👍🏻 Thanks a lot for directly supporting my channel! Much appreciated, wich color did you buy? Have a great day my friend ✌🏻✌🏻
@@Metalstacker I bought the black one. It's a well made T-shirt and your artwork shows up great! I believe in supportng the channels I really like. It takes much time and work and supplies to make videos. I know, I tried but they did not turn out well . Keep up the great videos!!!
You made the C19 antidote lol I usually add my zinc in last, but I don't usually use that much at one time. you might have to add a few % back in when you remelt it to cast. You almost had some fried chicken. Keep at it.
LOL, yeah I will try this again, but then add smaller amounts of zinc. Finally all metals will go into one crucible and will be mixed troughout the melt again.
I think you should pre-heat the metal before you add it. I think that adding cold ingots to the hot copper was a big part in f the issues you had, especially combined with the big diff in melting temps. Next time you want to try a mixed metal melt, I would really recommend melting and making shot out of each metal first and then melting the shot mixed together. Also, shot would make it easier to get the exact weights that you want. I am not an expert or anything, I just love watching melting videos! Copper is always my favourite. Aluminum bronze is second. Thanks for all your hard work!
Using shots is a great idea! The problem with this particular melt was that the ingots of zinc where pretty big, the copper solidified a little bit, so the zinc ingot could not fall directly into the copper, when I closed the lid of the furnace after adding the zinc, I assumed the zinc would melt and after the copper would remelt, it would mix in. But the ingot was so big it did not have a chance to melt completely before the copper got totally liquid again. The zinc bar fell in the liquid copper causing the violent reaction. I will do this again but with smaller pieces of zinc :)
That is an interesting alloy. Lots of zinc. That got pretty hairy there. Sure am glad you didn't get hurt or have fried chicken afterwards. Probably should have melted the copper first, then the zinc. I found a channel, Dragon Atelier. He has a great video making Nordic Gold where he explains adding the zinc very carefully without all the smoke. I did it his way when I make my Nordic Gold video a while back and did not have much smoke. The bars look good. The colors are different due to the amount of zinc. Stay safe brother. May the stacks continue to grow. See you next week.
@@DragonAtelier You're welcome. It is very good advice. If it helps keep one person from getting hurt, it is well worth it. Zinc can be a scary animal.
Thanks for the tips mate! I know @Dragon Atelier :) I have made Nordic gold too, the part with the zinc and tin gets pretty violent in my opinion, but like you said, if you have a proper melted copper, the reaction will be short and right after adding the zinc and tin you should stir it. I will defenitely try this one again soon :)
Try this recipe. Start with just copper. Heat it to the melting temperature of zinc. Then add the zinc and let it melt. Slowly increase the temperature but let the copper dissolve into the zinc more than melt into the zinc. Use copper with a high surface area to weight ratio like wire. The maximum temperature should be around that of melting brass instead of the higher temperature of melting copper. That should help to keep the zinc from boiling off too fast.
Yeah that was pretty violent LOL, I will make another bar to be sure I have enough of this bronze. I might add a little bit zinc in the remelt, will ask for some advice by another melter first :)
Great video, but what was your neighbors talking about the clouds? 😂😂😂 Have seen in another comment, you where talking about for using zinc-shots, thats a absolute great idea. In my opinion there should be much less smoke. But that could also be false, i am just a beginner in that business. Sokeep melting and show us your vids and experiences, its very interesting. Greetings from germany
Thanks! The zinc shots make it more managable to have the exact weight. The downside is you have a larger surface wich can create smoke. I hope to be back melting after the summer holidays 🔥🔥🔥
I will defnitely try this alloy again soon. I will first melt the copper and than add the zinc in smaller pieces. After that has been melted, I will mix it up and pour it out directly after the mixing :)
Hey! Metalscrapper’s metallurgy studying friend here, naval brass is a brass alloy with a pretty high strength to weight ratio, as the name would suggest it’s used in a lot of naval applications in areas where high strength and corrosion resistance are important. It’s good in fresh and salt water and the 1% tin added serves to help keep oxides from forming even in contact with water
Brother. Mate. Come on. 🤦🏻♂️ In every copper based alloys with zinc, you need to melt all the ingredients first and add zinc last when the alloys is just before solidifying in the crucible with furnance off. First you added it it with all the ingredients, it boiled away, then second tome you added it too soon. You have to wait till the molten alloy cools. A lot of mess and it did not suppose to look like that. Most of the zinc you have added is already out and boiled away and the mess is, well you know.
LOL, yeah that was a pretty mess, I was experimenting with the first melt, but totally did not like it, way too much fumes and zinc burning off :) The second time the copper solidified as those zinc ingots where pretty big. I will do this again soon :) Thanks for the tips my friend :)
Oh and do you mean I first will melt the copper with tin, turn off the propane, let the copper (almost) solidify, put in the zinc and put on the propane again, when the copper melts, the zinc will fall into the molten copper and mix? Is that right?
@@Metalstacker nope. When you add zinc you just need to wait for the copper and tin mix to solidify gently only on top layer. The top layer will prevent for the zinc to oxidize and just melt in to the mix.
The reaction let's it look like that, it is a isothermical reaction as the zinc melts, the temperature of the melt increases drastically creating a more violent reaction. I should have added smaller chunks in one go 😆🔥🔥🔥
If the melting is so dangerous that you have to wear a mask (even when it goes well) what about those chickens? Aren’t they being poisoned by the smoke?
Good thought! They are kept at a safe distance, if they would breath in some fumes they are mostly pretty diluted with normal air. Never had any problems with the chickens 😉 Thanks for the comment and watching the video 🔥🔥🔥
Hi Metalscrapper! I melted and cast some copper yesterday. Thanks for your instruction! And today, I got my official Metalscrapper T-Shirt! So now I can melt and cast in Metalscrapper uniform! Have a great day!!! Bob
Great to hear you have melted some copper. Glad my video's are not only entertaining, but also usefull 👍🏻
Thanks a lot for directly supporting my channel! Much appreciated, wich color did you buy? Have a great day my friend ✌🏻✌🏻
@@Metalstacker I bought the black one. It's a well made T-shirt and your artwork shows up great! I believe in supportng the channels I really like. It takes much time and work and supplies to make videos. I know, I tried but they did not turn out well . Keep up the great videos!!!
You made the C19 antidote lol I usually add my zinc in last, but I don't usually use that much at one time. you might have to add a few % back in when you remelt it to cast. You almost had some fried chicken. Keep at it.
LOL, yeah I will try this again, but then add smaller amounts of zinc. Finally all metals will go into one crucible and will be mixed troughout the melt again.
I think you should pre-heat the metal before you add it. I think that adding cold ingots to the hot copper was a big part in f the issues you had, especially combined with the big diff in melting temps.
Next time you want to try a mixed metal melt, I would really recommend melting and making shot out of each metal first and then melting the shot mixed together. Also, shot would make it easier to get the exact weights that you want.
I am not an expert or anything, I just love watching melting videos! Copper is always my favourite. Aluminum bronze is second. Thanks for all your hard work!
Using shots is a great idea! The problem with this particular melt was that the ingots of zinc where pretty big, the copper solidified a little bit, so the zinc ingot could not fall directly into the copper, when I closed the lid of the furnace after adding the zinc, I assumed the zinc would melt and after the copper would remelt, it would mix in. But the ingot was so big it did not have a chance to melt completely before the copper got totally liquid again. The zinc bar fell in the liquid copper causing the violent reaction. I will do this again but with smaller pieces of zinc :)
That is an interesting alloy. Lots of zinc. That got pretty hairy there. Sure am glad you didn't get hurt or have fried chicken afterwards. Probably should have melted the copper first, then the zinc. I found a channel, Dragon Atelier. He has a great video making Nordic Gold where he explains adding the zinc very carefully without all the smoke. I did it his way when I make my Nordic Gold video a while back and did not have much smoke. The bars look good. The colors are different due to the amount of zinc. Stay safe brother. May the stacks continue to grow. See you next week.
Thanks mate ☺️
@@DragonAtelier You're welcome. It is very good advice. If it helps keep one person from getting hurt, it is well worth it. Zinc can be a scary animal.
@@JsStack very good point 👍
Thanks for the tips mate! I know @Dragon Atelier :) I have made Nordic gold too, the part with the zinc and tin gets pretty violent in my opinion, but like you said, if you have a proper melted copper, the reaction will be short and right after adding the zinc and tin you should stir it. I will defenitely try this one again soon :)
Super NICE Video ...Respect from Romania....
Thanks mate!
You should get the copper molten before adding the zinc.
Yeah that is the way to go (the second batch with the explosion was made that way). I will do it another time soon :)
The chickens are checking whats going on 🤣
They are alway curious LOL Luckily for them I have placed a fence now to keep them away from mthe melting area :)
Man, if I had access to your supply of copper, I wouldn't be diluting it in anything! Prices keep going up!
I know mate! But I can find free copper everywhere and no bronze, so with a little pain in my heart I mix it myself. I do love my pure copper 😁✌🏻✌🏻
That was definitely quite the reaction between the metals my friend! 😮
More a reaction of zinc to too high temperature. Those metals do not react with itself ☺️
Yup, that was pretty violent LOL I will try this again :)
Try this recipe. Start with just copper. Heat it to the melting temperature of zinc. Then add the zinc and let it melt. Slowly increase the temperature but let the copper dissolve into the zinc more than melt into the zinc. Use copper with a high surface area to weight ratio like wire. The maximum temperature should be around that of melting brass instead of the higher temperature of melting copper. That should help to keep the zinc from boiling off too fast.
Thanks! Might try it that way the next time 👊🏻🔥🔥🔥
That was a bit hectic glad you didn't get hurt
Yeah I should have used smaller pieces of zinc 🤣👍🏻👍🏻
Pretty scary there brother. Might need to add a little more zinc when you remelt it. Good looking bars. Stay safe. See you next week.
Yeah that was pretty violent LOL, I will make another bar to be sure I have enough of this bronze. I might add a little bit zinc in the remelt, will ask for some advice by another melter first :)
Good Morning My Good Bro metal scrapper
Good day there!
Thank you for the info. It gives me some useful ideas to try out.
Good to hear :)
Would like to see you clean the furnace, as I have the same problem….
I have been told to run it upside down
But I’m scared!
I just burnt out all zinc with the next melt LOL, but to be honost, my furnace is needing maintenance soon again, it is pretty dirty :)
Great video, but what was your neighbors talking about the clouds? 😂😂😂
Have seen in another comment, you where talking about for using zinc-shots, thats a absolute great idea. In my opinion there should be much less smoke. But that could also be false, i am just a beginner in that business.
Sokeep melting and show us your vids and experiences, its very interesting.
Greetings from germany
Thanks! The zinc shots make it more managable to have the exact weight. The downside is you have a larger surface wich can create smoke. I hope to be back melting after the summer holidays 🔥🔥🔥
always melt your higher temp metals into your lower temp ones, that way you will get less metal burn off. or melt them together.
I will defnitely try this alloy again soon. I will first melt the copper and than add the zinc in smaller pieces. After that has been melted, I will mix it up and pour it out directly after the mixing :)
How is navy bronze commercially made? It looks like it was a difficult process!
I think ik a controlled situation 😉🔥
That was a bit scary, but glad you're alright.
Yeah that scare me too, but I will try it again soon and use smaller pieces of zinc :)
What would be a practical use for navy bronze? Or is it just a novelty thing?
Hey! Metalscrapper’s metallurgy studying friend here, naval brass is a brass alloy with a pretty high strength to weight ratio, as the name would suggest it’s used in a lot of naval applications in areas where high strength and corrosion resistance are important. It’s good in fresh and salt water and the 1% tin added serves to help keep oxides from forming even in contact with water
Glad Mike did already answer you :) Thanks @Mike Pommer, I will try it again soon and use your tips to get it better :)
i think you let out the magic smoke..... oh wait this isn't electronics, so it may still work at the end :)
LOL, the furnace became pretty dirty but still works fine. It could use a small restoration though :D
Apparently melting brass without burning zinc isn't possible. Have the same issue here.
The temperature is too high, it is possible but very hard and not perfect.
Yeah, copper melts at 1083°C and zinc under 500°C so not burning off zinc is impossible!
I need to get over 1083°C to melt the copper, that is way over the boiling point of zinc... I do not know how to do it differently :P
@@Metalstacker just make zinc free brass, tin and alu is usually used.
that looks healthy
😉🔥🔥🔥
Brother. Mate. Come on. 🤦🏻♂️ In every copper based alloys with zinc, you need to melt all the ingredients first and add zinc last when the alloys is just before solidifying in the crucible with furnance off. First you added it it with all the ingredients, it boiled away, then second tome you added it too soon. You have to wait till the molten alloy cools. A lot of mess and it did not suppose to look like that.
Most of the zinc you have added is already out and boiled away and the mess is, well you know.
LOL, yeah that was a pretty mess, I was experimenting with the first melt, but totally did not like it, way too much fumes and zinc burning off :) The second time the copper solidified as those zinc ingots where pretty big. I will do this again soon :) Thanks for the tips my friend :)
Oh and do you mean I first will melt the copper with tin, turn off the propane, let the copper (almost) solidify, put in the zinc and put on the propane again, when the copper melts, the zinc will fall into the molten copper and mix? Is that right?
@@Metalstacker nope. When you add zinc you just need to wait for the copper and tin mix to solidify gently only on top layer. The top layer will prevent for the zinc to oxidize and just melt in to the mix.
Looked more like magnesium than zink? 🤔
The reaction let's it look like that, it is a isothermical reaction as the zinc melts, the temperature of the melt increases drastically creating a more violent reaction. I should have added smaller chunks in one go 😆🔥🔥🔥
Is die rook niet mega ongezond?
Dit is hoekom hy ‘n “respirator” gebruik. Zink rook is redelik giftig.
Jep, die is behoorlijk giftig! Als je er recht boven gaat staan dan krijg je geheid zink koorts.... Ik draag altijd een gasmasker als ik zink smelt :)
Helemaal gelijk wat je zegt :)
If the melting is so dangerous that you have to wear a mask (even when it goes well) what about those chickens? Aren’t they being poisoned by the smoke?
Good thought! They are kept at a safe distance, if they would breath in some fumes they are mostly pretty diluted with normal air. Never had any problems with the chickens 😉 Thanks for the comment and watching the video 🔥🔥🔥
You made nordic gold. Copper, aluminium, zinc and tin? Thats what they make nordic gold with
I had no aluminium in it 😁✌🏻✌🏻
Het iemand toe die brandweer ontbied?😁
Haha, met al die rook was ik wel bang dat iemand de brandweer ging bellen :)
yeah but can you build a pyramid?lol.
I could cast one 😉🔥🔥🔥
what a mess todays melt is very bad
LOL you are right :) Even though the mess I was happy with the first bar :)
🤦🏽♂️😂
LOL, that was stupid right xD
Denk dat die rook niet erg gezond is. Mag je wel mee oppassen. 🤢
Nee dat is niet best haha, heb ook altijd een gasmasker op met dit soort metalen