🔥Melting stuff in Belgium 🇧🇪 😏🔥 SJWCasting.com Hello there! 👋🏻
I make video’s of melting materials. Materials like Aluminum, Brass, Copper, Zinc, Tin, Lead, Nordic Gold etc. and somethimes mixing them.
I started doing this after seeing lots and lots of videos on here. After one year of deciding, I got myself a devil forge and started melting. What could possibly go wrong..😏 And I do not regret it at all! It’s very very fun to do😁.
Be sure to take a look at my Merch: sjwcasting-shop.fourthwall.com email : sjwcasting@gmail.com
Hi, interesting video, I would like to know how long does it take to cast bronze? Are you happy with the VEVOR oven? can you tell me the name of the product you give to the oven with the brush.? because I would like to buy it too. Thank you
Thank you! And thank you for watching!! Not that long. Bronze is a lot of copper so it should take about 10-15 minutes.. yes I am, but I lost a rubber to connect the gas so I can’t use it for the moment😅. Looking for a new rubber. Brush?
Hi, interesting video, I would like to know how long does it take to cast bronze? Are you happy with the VEVOR oven? because I would like to buy it too. Thank you
Thank you! And thank you for watching!! Not that long. Bronze is a lot of copper so it should take about 10-15 minutes.. yes I am, but I lost a rubber to connect the gas so I can’t use it for the moment😅. Looking for a new rubber.
@@SJWCASTING Icosahedrite is a mineral that consists of an alloy of copper, iron and aluminum (Al63Cu24Fe13) and can form quasicrystals with dodecahedral shapes. It was discovered in a meteorite. In terms of physical properties, in practice it is a kind of extremely non-stick and hard metallic ceramic. Its composition by mass would be approximately (42.97% Al, 38.61% Cu, and 18.42% Fe), although it may vary slightly and will continue to produce icosahedrites with dodecahedral quasicrystals. If you are interested about making it, I can help you with finding phase diagrams and additional info ^^ Although there are no specific guides on how to make it in a smelting oven 😅
Bing Copilot says: "The three approaches you've mentioned are indeed common methods to reduce or eliminate voids in copper pours during smelting: 1. **Temperature Control**: Precise control of the temperature can help ensure that the copper melts uniformly, reducing the likelihood of gas entrapment and void formation. Overheating can cause excessive gas absorption, while underheating can lead to incomplete melting and poor flow, both of which can create voids. 2. **Vibration Table / Pad**: Using a vibration table or pad can help to agitate the molten copper, allowing trapped gases to escape to the surface before the metal solidifies. This method is often used in conjunction with other techniques to enhance their effectiveness. 3. **Use of Additives (e.g., Copper Phosphorus)**: Additives like copper phosphorus can act as degassing agents. They help by combining with the oxygen to form stable oxides, which can then rise to the surface of the melt. This process reduces the oxygen content in the molten copper, thereby minimizing the potential for voids caused by gas entrapment. In addition to these methods, you might also consider: - **Fluxing**: Using a flux like borax can help remove impurities and oxides from the surface of the molten metal, which can also contribute to void formation. The flux can absorb these impurities and facilitate their removal as slag⁵. - **Protective Atmosphere**: Introducing an inert or reducing atmosphere during the melting process can prevent oxidation and reduce the formation of voids due to gas entrapment. - **Pouring Technique**: The way the molten copper is poured into the mold can influence the formation of voids. A steady, controlled pour that minimizes turbulence can help prevent air entrapment. Each method has its own set of considerations and may be more or less effective depending on the specific circumstances of the smelting process. It might be beneficial to experiment with a combination of these techniques to determine the most effective approach for your particular setup. Remember to always prioritize safety when working with molten metals and high temperatures."
I had prompted it with: "I'm trying to come up with ways to remove voids from copper pours during smelting. So far, the Internet has recommended three approaches: 1) Temperature Control, 2) Make a vibration table / pad and set a stack of fire bricks on it and put the smelting furnace on that, 3) use additives such as copper phosphorus to degas the copper in the crucible before the pour"
I’m gonna try controlling the temperature a bit better and use copper phosphorus when I remelt those “bad” ingots. And pour more calmly also could help 🤔
@@SJWCASTING Another thing I noticed while comparing your video to some others' videos is that you poured the copper into the center of the graphite mold. Maybe it would be less turbulent if you poured from the side of the mold. I'm just getting into smelting, myself. So I've been watching a lot of videos on the topic lately and it seems to me that the people that poured on the side experienced less bubbling on the surface compared to other methods of pouring. But again, I'm no expert. Haha. Good luck with your pours! I appreciated this video
Is it safe to work in your shorts like that? I'd be worried about metal splatter when pouring... Then again, I also might just work in my shorts too if it was during the middle of summer here in Arizona 😅
Those bubbles are usually formed due to impurities in your metals, melting soldered copper pipes or any kind of waste metal will cause these porosities
when I was taking casting classes, we would put the ingot molds on top of the furnace to heat them. Als, the molds were made of Angle with end plates. Really easy to remove.
I have only done probably 100 copper bars my self and just recently started doing videos on my snake channel here but i have never seen this issue. I use a cutting torch to heat my molds and so far only have used vevors electric furnace / Smelter. So maybe your copper is to hot? Idk it could be a lot of different reasons. I am fairly new buti have never used flux i think useing the cutting torch to heat molds has really made my bars smoother. Who knows like i said i am still very new to this i know the electric vevors only get to 1150c so temp may be an issue who knows awesome video buddy keep it up
Yeah I think I got the copper a bit tot hot. Usually I only use flux with brass. I don’t like using the electric furnace, it takes to long and could damage it doing long, hot melts. Thank u!!
@@SJWCASTING I ask because I play DnD and wondered what would happen if the players found an old forge with ingot castings still filled with valuable materials. Does the metal stuck to the castings like banana bread to a non stick pan. :)
Ive been searching high and low to try and find more videos of face down sand casting like this, and i cant find any! Please make some more with even more details!
It depends on how you treat them. Some could hold 15-20. If you abuse them, 10 or less.. I know a guy that tempers his crucibles before every melt. And his reach 100-150…
Add borax detergent and it will fix it👌 borax may ruin the graphite crucible after extended use, try sprinkle some borax on the molten copper after it’s in the mold. Preheat the molds also
Ich habe in meinen letzten Videos einen Vevor Schmelzofen benutzt. Das Zubehör wie die beigelegte Zange ist in schlechter Qualität. Die beigelegte Form ist sehr gut und es gibt keine Blasen beim Gießen. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_BQKDQvBypQ.htmlsi=SpTdtJT9I4M7THNA
True, but it may have been a different temperature overall than the other forge. I mould a lot of lead... When i get it too hot or not hot enough, it's still melted, but I get different results when I cast it.
You may need to melt it all down, flux with borax or whatever is recommended for copper, and skim the surface of all dross before pouring. Also try preheating your molds really well before pouring they need to dry and off gas.
I know the feeling brother. I had some personal issues pop up and I needed a break. Now I am super busy with family and work. It has been hard getting back into melting. I want to. Lots of things to melt and projects to pour. Soon I hope. Good luck brother. We do what we can when we can.
I know the feeling. I’ve been scrapping but I can’t find the time to melt anymore.. let alone time to film, edit.. thanks brother, good luck to you too!
What size molds were you using? Graphite #1 & #2? Also, so with a 6kg Crucible you can only melt up to 13lbs of material at a time correct? I haven't used my Forge yet as I just got it Dec 25th. Trying to learn as much as possible 1st.
I used the crucible that was included. I think it was a 6🤔. But #6 means 6lbs of aluminium it can hold. Copper is denser so it could hold more then 6lbs, how much exactly I don’t know for sure. The best way is to test it yourself 😁. Be careful, be prepared, preheat, take precautions and you’ll be fine!
You can melt quite a bit with 11Kg of propane. It’s been a while since I’ve melted a bunch of copper but I think you should easily do over 20kg of copper.
First buddy. Remeber when I tried to contact you after you left without saying anything. I worried that smth happened etc. We all know at too high goals can be overwhelming. That is why - do what you like, film when you can but please keep in touch 💪🏻😁
It has been a while. I am way behind on watching videos. Not sure I will ever get caught up on everyone. I have not melted in like 3 months. Not much time with everything going on. Busy with family, work, and just life.
