Thanks for the video. You probably know by now that it's not a good idea to put enameled copper wire into the crucible, since the varnish is quite flammable. Also, just FYI, the cooling fan appears to be sucking a lot of heat (and fire") right down onto the board. I'd suggest putting some sort of divider between the work coil and the pcboard. This the first time I have seen one of these 4000 watt zvs induction heaters demonstrated and it sure looks like a powerful beast! How hot did your cooling water get during this melt?
Hey! I knew it would catch fire as I did it with my propane melts but wasn't thinking about the suction power of that fan! I have since put one of my light fire bricks on the tubing as a wall which keeps heat and flame away. You can put your hand close to the crucible when it's fully heated, as long as there is no flame. I don't remember the temperature but it was pretty warm when finished, not hot but getting there. I only had about 2.5 litres of very cold water and added another 1.5 litres of very cold water about half way through. I would say about 8 litres cold water would do for a 15 minute melt without the need for checking it constantly. I've since bought a larger container for that at.....the Dollar Store!
Great video! not bad 11minutes to melt few kilos copper impressive inverter. However My Thyristor also 4000watts operating on high voltage 300VDC/12Amps takes 5 mins to melt similar load. Nevertheless Thank you for this video it helps me compare performances.
great video thanks, using this induction heating method could you tell if the carbon crucible was the source of heat or the copper or both? I need to use a non-carbon crucible and was curious if the induction would work on the copper only. Perhaps slower heating rate?
Only if the crucible has ferrous elements in it, then the crucible will heat up the copper. The crucible will need a buffer like a ceramic blanket between the copper coil of the heater and crucible. Also “starlight” crucibles won’t work and porcelain will crack in an induction heater
Thanks for watching! After about 4 melts it seems to be thinning a bit, mainly the Ceramic but there is always some graphite powder after cooling. It's hard to find these ceramic lined crucibles at decent prices I might get some Ceramic fibre blanket and fit a graphite crucible inside it as a test later. cheers!
Hi, Thank you for sharing experiance :). I have same termometer, that have problem laser pointer. 10 cm rise up where you want to see heating. Pointer showing wrong place :)
Can you connect a DC Power supply to the Power Board module, a lot of instruction manuals says yes, if so any specific model and what type, and how do i connect it?
Hello thanks for stopping by! The crucible is a 290 mL graphite crucible with a ceramic shell I got it on AliExpress with the induction heater. The molds I'm not sure exactly as I bought them years ago but I can fill 2 molds with about 1 crucible and some left over so around 100-120ml each Peace!
Hey Mike! I actually made a mold box and made some green sand but I just haven’t got around to casting the sword parts yet. I need to melt more copper and brass and then after that I’ll probably try it. I was going to yesterday but there’s too much water in the back. I’ll try soon and film it! Peace brother!
@@shivercanadaMost excellent - you got the melting part down. Molding, casting, etc. presents other problems. Here's video of PeterB using induction power to cast a sword - he quit induction, went back to using propane. His 1.8kW ZVS was underpowered and did not have enough metal to fill a poorly designed mold. You have the power, use it wisely Luke -may the force be with you! ua-cam.com/video/rvRR41DMNkk/v-deo.html
hey man, great video! is the induction heater actually heating up the copper, or is it heating up the graphite(?) crucible that's then heating up the copper?
If it was steel or a ferrous metal it would heat both up but with copper the Crucible is doing the heating. This is why the water cooled copper tube doesn't itself melt. thanks for stoping by!
I haven't tried that but I'm 99% sure it would heat up since it'e the Graphite itself that interacts with the magnetic field. This is why you can melt any metal in it, even non magnetic metals. It's still holding up, copper tubing hasn't warped or anything, the cold water is absolutely necessary...though the ceramic coated graphite crucible helps contain most of the heat inward.
wow nice video. if you spread the turns of the coil can you increase the heating area? Im not trying to meld anything just heat up water to make a low laying fog machine. what Voltage and current are runing?
Best to buy a multi headed mist maker that makes crazy volumes of fog. Boiling water won’t make much fog. You also need 4 cords to plug each power supply into a different house circuit so not practical for what you need. Thanks for stopping by!
@@shivercanada there this machine called the nimbus it uses dry ice(10lbs), it heats water (4gl) by 2 heating resistor (1800W each) has a metal basket that fill with dry ice and when the water gets hot you sink the basket into the hot water. It's not very efficient but does get trick done, It takes like 1hr to heat up the water with a single resistor. time can be cut in half by using the 2 heating resistors but you got to use a second cord. what I had in mind was to heat up water instantly with this, use a pump to spray it to the dry ice instead of sinking, also I was planing on using lit-poly cells(3.7v 200Amax) about 10-12 in series should give me the working voltage. I already have the inductor, batteries but don't know how to increase the heating coil, also I had read that heat inductors are more efficient on ferous metal, I was planing on using stainless steel Tube 1/4 or 1/8, do 4,6,8, passes thru the heating coil. I appreciate your time and input thank you.
Yes I did that with another tube I made very slightly smaller. It doesn’t affect the electronics because of that giant fan which blows a lot of air and cools well. Making a tube too small will blow the unit as the seller explained. This is why the zero load type heaters are superior.
Hey check Aliexpress for a "4000 watt induction heater" If you can afford it the 15kw versions are waaay beter, come with case and everything needed inside and can run longer as well as heat solid steel white hot, this one can't do that.
The Graphite crucible is covered with a Ceramic cloth and that is covered in a hard white ceramic. Also the copper tubing has cold water running constantly through it using a mini water pump and a tub of ice cold water
If memory serves me 50A Communication power supplies but the amperage could be wrong. Check AliExpress for “4000w induction heater” those kits are the power supplies I used. Thanks for stopping by! ✌🏻
Hey I got this on Aliexpress, it kind of does the job but I wouldn’t recommend it because there’s no way it’s actually 4000 W. I would recommend a “15 kW 100% load” induction heater box. They’re double the price but many many times better, makes a steel bar white hot, you can interchange coils and coil sizes and you can run it non stop all day without any damage to the unit.
cool induction melter
Thanks for the video. You probably know by now that it's not a good idea to put enameled copper wire into the crucible, since the varnish is quite flammable. Also, just FYI, the cooling fan appears to be sucking a lot of heat (and fire") right down onto the board. I'd suggest putting some sort of divider between the work coil and the pcboard.
This the first time I have seen one of these 4000 watt zvs induction heaters demonstrated and it sure looks like a powerful beast! How hot did your cooling water get during this melt?
Hey! I knew it would catch fire as I did it with my propane melts but wasn't thinking about the suction power of that fan! I have since put one of my light fire bricks on the tubing as a wall which keeps heat and flame away. You can put your hand close to the crucible when it's fully heated, as long as there is no flame. I don't remember the temperature but it was pretty warm when finished, not hot but getting there. I only had about 2.5 litres of very cold water and added another 1.5 litres of very cold water about half way through. I would say about 8 litres cold water would do for a 15 minute melt without the need for checking it constantly. I've since bought a larger container for that at.....the Dollar Store!
Great video! not bad 11minutes to melt few kilos copper impressive inverter. However My Thyristor also 4000watts operating on high voltage 300VDC/12Amps takes 5 mins to melt similar load. Nevertheless Thank you for this video it helps me compare performances.
wow you are using Thyristor (SCR) to power induction furnace ? how?
great video thanks, using this induction heating method could you tell if the carbon crucible was the source of heat or the copper or both? I need to use a non-carbon crucible and was curious if the induction would work on the copper only. Perhaps slower heating rate?
Only if the crucible has ferrous elements in it, then the crucible will heat up the copper. The crucible will need a buffer like a ceramic blanket between the copper coil of the heater and crucible. Also “starlight” crucibles won’t work and porcelain will crack in an induction heater
Have you noticed any degradation of the graphite crucible yet? Most of us feel that they last for about 10 "heats" before getting too thin to be safe.
Thanks for watching! After about 4 melts it seems to be thinning a bit, mainly the Ceramic but there is always some graphite powder after cooling. It's hard to find these ceramic lined crucibles at decent prices I might get some Ceramic fibre blanket and fit a graphite crucible inside it as a test later. cheers!
Hi, Thank you for sharing experiance :).
I have same termometer, that have problem laser pointer. 10 cm rise up where you want to see heating. Pointer showing wrong place :)
Yes it’s not the best one that’s for sure. ☺️
Can you connect a DC Power supply to the Power Board module, a lot of instruction manuals says yes, if so any specific model and what type, and how do i connect it?
I’m sorry I can’t answer that, this was a Kit from AliExpress, I didn’t design it myself.
Your mold seems to have a nice size. How large is it?
Hello thanks for stopping by! The crucible is a 290 mL graphite crucible with a ceramic shell I got it on AliExpress with the induction heater. The molds I'm not sure exactly as I bought them years ago but I can fill 2 molds with about 1 crucible and some left over so around 100-120ml each Peace!
Did you ever remelt that copper bar? Would love to see you alloy it with tin to make some bronze castings.
Hey Mike! I actually made a mold box and made some green sand but I just haven’t got around to casting the sword parts yet. I need to melt more copper and brass and then after that I’ll probably try it. I was going to yesterday but there’s too much water in the back. I’ll try soon and film it! Peace brother!
@@shivercanadaMost excellent - you got the melting part down. Molding, casting, etc. presents other problems. Here's video of PeterB using induction power to cast a sword - he quit induction, went back to using propane. His 1.8kW ZVS was underpowered and did not have enough metal to fill a poorly designed mold. You have the power, use it wisely Luke -may the force be with you! ua-cam.com/video/rvRR41DMNkk/v-deo.html
hey man, great video! is the induction heater actually heating up the copper, or is it heating up the graphite(?) crucible that's then heating up the copper?
If it was steel or a ferrous metal it would heat both up but with copper the Crucible is doing the heating. This is why the water cooled copper tube doesn't itself melt. thanks for stoping by!
I just purchased one like yours ,but evry think it is in 220 V what kind oof inverters have you used ,it seems to need 3 of them?
They came with 2 of them they are the stock power inverters for the kit but needed a 3rd one for more power. 3 is MAXIMUM though
Does the crucible heat up on it's own without anything in it? How is the coating on the copper coil holding up?
I haven't tried that but I'm 99% sure it would heat up since it'e the Graphite itself that interacts with the magnetic field. This is why you can melt any metal in it, even non magnetic metals. It's still holding up, copper tubing hasn't warped or anything, the cold water is absolutely necessary...though the ceramic coated graphite crucible helps contain most of the heat inward.
@@shivercanada Awesome!!! Thanks so much for the information, I have things to melt together that don't contain metal.
wow nice video. if you spread the turns of the coil can you increase the heating area? Im not trying to meld anything just heat up water to make a low laying fog machine. what Voltage and current are runing?
Best to buy a multi headed mist maker that makes crazy volumes of fog. Boiling water won’t make much fog. You also need 4 cords to plug each power supply into a different house circuit so not practical for what you need. Thanks for stopping by!
@@shivercanada there this machine called the nimbus it uses dry ice(10lbs), it heats water (4gl) by 2 heating resistor (1800W each) has a metal basket that fill with dry ice and when the water gets hot you sink the basket into the hot water. It's not very efficient but does get trick done, It takes like 1hr to heat up the water with a single resistor. time can be cut in half by using the 2 heating resistors but you got to use a second cord.
what I had in mind was to heat up water instantly with this, use a pump to spray it to the dry ice instead of sinking, also I was planing on using lit-poly cells(3.7v 200Amax) about 10-12 in series should give me the working voltage. I already have the inductor, batteries but don't know how to increase the heating coil, also I had read that heat inductors are more efficient on ferous metal, I was planing on using stainless steel Tube 1/4 or 1/8, do 4,6,8, passes thru the heating coil.
I appreciate your time and input
thank you.
can the copper tubing be extended so its not so close to the electronics?
Yes I did that with another tube I made very slightly smaller. It doesn’t affect the electronics because of that giant fan which blows a lot of air and cools well. Making a tube too small will blow the unit as the seller explained. This is why the zero load type heaters are superior.
Hello bro what brand of your induction,can you give me the link?
Hey check Aliexpress for a "4000 watt induction heater" If you can afford it the 15kw versions are waaay beter, come with case and everything needed inside and can run longer as well as heat solid steel white hot, this one can't do that.
good.
What material did you used for workpiece insulation ?
The Graphite crucible is covered with a Ceramic cloth and that is covered in a hard white ceramic. Also the copper tubing has cold water running constantly through it using a mini water pump and a tub of ice cold water
@@shivercanada Cool
@shivercanada Graphite is diamagnetic, but at those temperatures the graphite crucible doesn't affect the magnetic flux, right ?
Did you just melt 2.5 pounds of copper in 20 minutes?
I didn’t, but this wacky contraption did!
What is the input and output voltage?
I'm sorry I don't remember the specs but it's probably still on Aliexpress they have the info
Waht is the power supply aré you using
If memory serves me 50A Communication power supplies but the amperage could be wrong. Check AliExpress for “4000w induction heater” those kits are the power supplies I used. Thanks for stopping by! ✌🏻
Super how much price
Hey I got this on Aliexpress, it kind of does the job but I wouldn’t recommend it because there’s no way it’s actually 4000 W. I would recommend a “15 kW 100% load” induction heater box. They’re double the price but many many times better, makes a steel bar white hot, you can interchange coils and coil sizes and you can run it non stop all day without any damage to the unit.
Berapa kva kapasitas mesin ini
you forgot to ad your borax...
😳 You’re right especially with plastic from wires.
Schémas svp
Hello! I’m sorry I bought this kit I didn’t make it, I just assembled it so no schematics.
cool induction melter
Thank you kindly!