I used an induction forge for the first time at Clay Spencers shop in 2019. This alarm is a fail-safe to prevent you from damaging your machine. Can I use these machines for bladesmithing/knife making.Absolutely, just remember to size the coil appropriately for the blade stock and keep the blade moving, these coils tend to heat the steel from the outside edges in and it can be easy to overheat the edges. Note: You may cause the machine to beep at you when it encounters a problem with not enough resistance in the material to form a proper current. How exactly does induction heating work?
of heating. Whats the cost to run that thing? Frequency is non-adjustable, it depends on the coil design (diameter of turns, numbers of turns, copper tubing diameter and total length).
If you buy the 25L unit, might be a good idea to go ahead and buy some extra 6amp fuses as well, the general line of thought is that on some of the units there may be a slight surge just past 5a at start and that might be why the stock fuses are blowing. Plastics and other non-conductive materials can often be heated indirectly by first heating a conductive metal susceptor which transfers heat to the non-conductive material.
RESISTIVITYIf you use the exact same induction process to heat two same size pieces of steel and copper, the results will be quite different. Mid-frequency heaters are excellent for small parts heating, cutting, diamond tool brazing, soldering copper plumbing fittings, auto parts heat-treating, annealing of stainless steel containers and more.
There are really only 2 requirements for the water cooling system, sufficient pressure and a correct temperature range of the coolant. When compared with conventional heating methods, induction heating achieves maximum levels of quality and efficiency across a practically unlimited range of applications. Since Ive added the thermometer Ive been able to see that the water temperature in the Tig cooler stays around 85-90 degrees during late August temperatures before ever turning the machine on and in the 50-60 degree range in these cooler months. This required drilling three holes in the yellow micarta plate that the main terminals were connected to. In the most common heating methods, a torch or open flame is directly applied to the metal part. This will cause a short and you may hear a pop and see some sparks but it doesnt shock you.3.
I have a conduit connector on the box now since its all I had on hand when I was wiring it up, I will be switching that out for a proper cable clamp for strain relief.
This is what he had to say about his experience with the 10L: I have been getting heavy use out of my new induction unit for the past week. When properly set up, the process becomes very repeatable and controllable. What makes this heating method so unique? I also designed a simple 3D printed magnetic mount for this thermometer, it has places for small 3mmx6mm rare earth magnets so you can stick it to the side of the induction machine. These coils will need the 8mm to 1/4 adapter I mentioned above. What makes this heating method so unique? We provide sample testing and custom made coils in our New Jersey facility, One of the machine parts becomes overheated, Short circuit between work pieces and induction coils, 32 A (48A single-phase circuit breaker required), See detail specs below, we will make coils, 4 Lb (gold, silver, copper), 1 Lb (steel, aluminum), Induction coil adapter (to protect the coil connectors on the machine, good for users who change coils frequently), 30KW Hi-Frequency Split Induction Heater 50-200KHz, 75mm ID with 8mm Copper Tubing Insulated Vertical Induction Coil. It seems that a replaced 6amp fuse has solved their issues so far. The basic principles of induction heating have been understood and applied to manufacturing since the 1920s. Yesterday I switched to a different phase of the same project. In short, most of the machines on eBay should be of similar quality as far as I can tell. It helps to have a basic understanding of the principles of electricity. Nothing happens. The lowest Ive read the water temp now is in the low 40s on the coldest days so far. Condition: New, MPN: JFHFIH00001-220V, Brand: U.S. Pls reduce coil cycle number to keep the heater operating under Max power. Resistivity increases with temperature, so a very hot piece of steel will be more receptive to induction heating than a cold piece.INDUCTION COIL DESIGNInduction coils are normally made of copper tubing - an extremely good conductor of heat and electricity - with a diameter of 1/8" to 3/16"; larger copper coil assemblies are made for applications such as strip metal heating and pipe heating. Never allow the inductive current to exceed, The maximum time duration for running the unit at the 600~800 A working current range should not, Water Cooling Fitting and clamp (Pipe is not included). Precise control with digital time and current displays. (fixed coil or coil on a cable so it can be used by hand like a wand). Cleaned up the wiringMany of these units come with dangerously exposed wiring terminals and ground connection on the back of the machine. The basic principles of induction heating have been understood and applied to manufacturing since the 1920s.
The heated material offers less resistance and will then heat accordingly. Copyright 2008-2022 Across International. After a lot of questions and research, I believe I can say with confidence now that LiHua is the primary manufacturer of most of the machines on eBay.
Note: This model only available in 208-240 volt single phase. It helps to have a basic understanding of the principles of electricity.
My average monthly electric bill increased about $10-$15 per month. Why? Bob Menard over at Ball and Chain Forge tried the 10L and it worked until the machine was put under heavy use. Most importantly, the coils should be appropriately sized for the material you are planning to heat. During World War II, the technology developed rapidly to meet urgent wartime requirements for a fast, reliable process to harden metal engine parts. Its typically easier for most home shop users to accommodate the 220v/40amp in their electrical panels than the 110v/70amp. 1. https://spaco.org/Blacksmithing/ZVSInductionHeater/1000WattZVSInductionHeaterNotes.htm, https://ussolid.com/u-s-solid-15-kw-high-frequency-induction-heater-30-80-khz-220v-or-110v.html. Choose "Preferences". (See pic below) This allows me to use standard, off the shelf parts from a local hardware store to make my own coils. Research has shown a relationship between the heating depth of penetration and the frequency of the alternating current. If you are international, please click this. Since heat is transferred to the product via electromagnetic waves, the part never comes into direct contact with any flame, the coil itself does not get hot, and there is no product contamination. Again, EJ has some great info in the video above about how to make various shapes. Most of the time, Im only running the machine for about a minute or so to get a heat and then theres a break while I forge. The first hour went fine but that is when the cooler stopped keeping up. I do not recommend sticking your finger in the coil.4. Those are valid methods for helping to prevent kinking when bending copper tubing for more aggressive shapes like pancake or rectangular coils and should be used then to avoid wasting the costly copper tubing. These eddty currents flow against the electrical resistivity of the metal, generating precise and localized heat without any direct contact between the part and the coil. I found it would allow me to heat and punch 3/4" holes in 2"x 3/4" flat bar all day without issue.
U.S. For the best experience on our site, be sure to turn on Javascript in your browser. Looking back now, I believe that was a mistake because I did not immediately flush the system and re-install clean, new distilled water. But with induction heating, heat is actually "induced" within the part itself by circulating electrical currents. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies.
25 Liter Tig Cooler $363.79 (now $399 as of Jan 2022) https://www.ebay.com/itm/WS-25L-Industrial-Water-Chiller-25L-TIG-MIG-Welder-Torch-Water-Cooling-110V/124246749984. Our most popular model with 3 timers in 220V 1PH (Item# IH15A) Refurbished. So, its easy for me to say the induction forge has saved me money when it comes to fuel expenses.2.
15kw Induction Forge $632.17 (now $859as of June 2022) https://www.ebay.com/itm/283425113010UPDATE: Unfortunately, this vendor runs out of stock occasionally. Note: This model only available in 208-240 volt single phase. When a metal part is placed within the induction coil and enters the magnetic field, circulating eddy currents are induced within the part. 19 watchers, 0.1 new watchers per day, 277 days for sale on eBay. One last note about coil making. x 50 ft. Soft Copper Refrigeration Coil Tubing $61 (for making coils)Copper tubing cutter $10Copper tubing flaring kit $301/4 in. Still having trouble? Theyre constantly making changes/improvements to the LH-15 models and as such, depending on the year model, they make look different.
This process dispenses with long heating periods and enables the limited introduction of heat in a local and precisely timed manner, thus achieving a high degree of efficiency and maximum exploitation of energy.
I dont think I will need an antifreeze agent but I have spoken to a few guys who suggest other water additives that may be a good idea like algicides, etc. )3/8 in.
One of the members of the Facebook group contacted US Solid who told them NOT to add an antifreeze agent to the system. Having the coil coated with this sealant or a ceramic flexible tubing does not affect the heating capabilities at all and keeps you from making contact with the copper and causing a short, which almost always results in a startling shower of sparks and if done enough, can burn a hole in your copper tubing and allow water to suddenly spray out of the coils. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Yes, this question is asked a LOT. Across International IH series mid-frequency induction heaters are designed to operate between 30 and 80 kHz. Made an 8mm to 1/4 inch tubing adapterYou will likely want to make your own coils so if youre in the USA you'll probably want to adapt the machine to use inch tubing and fittings. The coil serves as the transformer primary and the part to be heated becomes a short circuit secondary. I may add the copper tubing to mine as that seems like a pretty safe way to add more cooling without having to add more capacity. See More.
We provide sample testing and custom made coils in our New Jersey facility, 32 A (40A single-phase circuit breaker required), See detail specs below, we will make coils, 4 Lb (gold, silver, copper), 1 Lb (steel, aluminum), Induction coil adapter (to protect the coil connectors on the machine, good for users who change coils frequently). The higher the frequency, the shallower the heating depth, and the lower the frequency, the better the diathermancy. This relationship is referred to as the coupling efficiency of the coil. There will be extra charges for shipping & handling. During the induction heating process, magnetics naturally offer resistance to the rapidly alternating electrical fields, and this causes enough friction to provide a secondary source of heat.
In addition to the heat induced by eddy currents, magnetic materials also produce heat through what is called the hysteresis effect. Without adequate pressure or the correct temperature the machine will alarm with a water fail condition, meaning it will emit a loud tone and and it will not work. Induction coils are usually cooled by circulating water, and are most often custom-made to fit the shape and size of the part to be heated. There is a proportional relationship between the amount of current flow and distance between the coil and part. Can I use this machine to make damascus?Its not ideal for that application, damascus needs to soak at a high heat to be able to set the welds properly. I did a year-to-year comparison of my electric bills comparing the year before when I did not have an induction machine vs a solid year of using one, nearly every day. I then re-routed the ground inside the case and used some good, shrink-fit ring terminals to attach the wires inside the box. I blew compressed air in both sides of the coil-connectors at the front of the machine. All refurbished units have been cleaned and tested to Ai standards before leaving our doors and carry a 3-month Ai warranty.
The higher the frequency, the shallower the heating depth, and the lower the frequency, the better the diathermancy. However, when I began shopping for an induction heater for forging purposes, I found the process to be a bit confusing.
Added a water temperature sensor I purchased the following Aquarium thermometer to monitor the water temperature in the Tig cooler: Amazon.com: Qooltek Digital LCD Thermometer Temperature Gauge Aquarium Thermometer with Probe for Vehicle Reptile Terrarium Fish Tank Refrigerator(Fahrenheit): Home Improvement. Location: Cleveland, Ohio, US, For the best experience on our site, be sure to turn on Javascript in your browser. The ball valve only had to be opened about of the way for me to have sufficient pressure and since the water was only going through the machine once, it was perfectly capable of maintaining the proper cooling temperature. Ships to: US, You have to make a good flare on the coil for it to seal properly. With their low cost of ownership and maintenance, they are the most popular and reliable machines. More recently, the focus on lean manufacturing techniques and emphasis on improved quality control have led to a rediscovery of induction technology, along with the development of precisely controlled, all solid state induction power supplies. Across International IH series mid-frequency induction heaters are designed to operate between 30 and 80 kHz. Frequency is non-adjustable, it depends on the coil design (diameter of turns, numbers of turns, copper tubing diameter and total length). According to Faradays Law, if the secondary of the transformer is located within the magnetic field, an electric current will be induced.
O.D. With their low cost of ownership and maintenance, they are the most popular and reliable machines. These machines REQUIRE water cooling, they absolutely will not function without it. I then drained the entire system of the old, dirty water, flushed the system with a vinegar mix (not sure if that helped anything or not) and then re-filled the Tig cooler with 6 gallons of new distilled water. Here are some of the coils he can make. When compared with conventional heating methods, induction heating achieves maximum levels of quality and efficiency across a practically unlimited range of applications. Seller: nikolastm (4,714) 100%, When theyre running idle, the only thing thats really pulling power is the fan and the tig cooler, both of which are 110v machines that dont draw much power. I am using this 25L unit because I wanted a self contained system that I could mount on a cart and roll around, only having to worry about power cords, rather than power AND water lines running all over the shop. Plastics and other non-conductive materials can often be heated indirectly by first heating a conductive metal susceptor which transfers heat to the non-conductive material.MAGNETIC OR NON-MAGNETICIt is easier to heat magnetic materials. July 2021 Update - PROBLEM ENCOUNTERED and resolved with the cooling system. The relative resistance of magnetic materials is rated on a permeability scale of 100 to 500; while non-magnetics have a permeability of 1, magnetic materials can have a permeability as high as 500.THICK OR THINWith conductive materials, about 80% of the heating effect occurs on the surface or "skin" of the part; the heating intensity diminishes as the distance from the surface increases. So coils can have single or multiple turns; have a helical, round or square shape; or be designed as internal (part inside coil) or external (part adjacent to coil). We look forward to working with you and your team in the future. This makes them standard equipment for many factories, labs and workshops where 230V AC is available.
O.D. I think the alarm trips at 130 degrees on most 15kw induction forges. For deep, penetrating heat, longer heating cycles at 5 to 30 kHz has been shown to be most effective.RESISTIVITYIf you use the exact same induction process to heat two same size pieces of steel and copper, the results will be quite different. I went slow and did not need to fill the tubes with sand, salt or water to prevent kinking. HOME |About MTI | Int'l Distributors | Order Support Center | Customer Login|Order Status | Career|Contact Us, SP-25AB is a kind of high-frequency heating equipment, which features the latest inverting technology so as to make itself light and convenient. What makes this heating method so unique? I'll keep working on it and see what further information I can pull out of it..
just be sure youre buying the 220v model. The rest of the next hour I was tripping the water fail after 60 sec. Please, Protection: Overpressure and over-temperature switch, The digital display shows output power and current, One Year limited warranty with lifetime support, (Consumable parts like coils, fittings and clamps are not covered by the warranty), NRTL or CSA certification is available upon requestat extra cost, please contact our sales representatives for a quote, The heater will shut down if over output occurs. When properly set up, the process becomes very repeatable and controllable.HOW INDUCTION HEATING WORKSHow exactly does induction heating work? So far, I have not seen the water temp in the shop get below 40s inside the shop. The BIG savings for me has been in how much propane I have NOT used since moving to induction.
December 2020 Update As the weather has cooled, Ive been concerned about the distilled water in the system freezing. Click on Safari on the upper left of your screen to open the drop down options. Mettle Works has these metric parts for sale if you do not want to make your own 1/4 inch adapters, see link section below. 0% negative feedback. Those metric components are difficult to find here in the US so I simply made an adapter using short sections of the original 8mm tubing soldered to inch adapters. This cost will be lower for you. For now, I dont know that Ill need to worry about that but if you live in extreme cold, you will likely need to research what is the best way to keep the system from freezing up.
Also, just like the induction machine, this cooling unit seems to sell out on eBay quite often but typically is restocked within a month and is also available at AliExpress.
A quick search on eBay showed ALL kinds of different machines. These eddty currents flow against the electrical resistivity of the metal, generating precise and localized heat without any direct contact between the part and the coil.IMPORTANT FACTORS TO CONSIDERThe efficiency of an induction heating system for a specific application depends on several factors: the characteristics of the part itself, the design of the induction coil, the capacity of the power supply, and the degree of temperature change required for the application.METAL OR PLASTICFirst, induction heating works directly only with conductive materials, normally metals.
Solid 15KW 30-80KHz High Frequency Induction Heater Furnace LH-15A 220V. Its a somewhat sticky substance that dries to a hard, rubber like coating and resists temperatures up to 2000F. These machines are more about localized heat.5. Doesnt it kill your electricity bill?? That was enough time to allow me to keep working. U.S.
INDUCTION COIL DESIGNInduction coils are normally made of copper tubing an extremely good conductor of heat and electricity with a diameter of 1/8 to 3/16; larger copper coil assemblies are made for applications such as strip metal heating and pipe heating. When properly set up, the process becomes very repeatable and controllable.
When an alternating electrical current is applied to the primary of a transformer, an alternating magnetic field is created. Prices listed online are valid for the US market and who pay by credit card only. Let our expert staff help you may the right choice. Resistivity increases with temperature, so a very hot piece of steel will be more receptive to induction heating than a cold piece. The machine comes with 8mm tubing and 14mm nuts for the coils. You can make your own DIY cooler or buy a cooling system, either way you must account for some kind of water cooling when youre looking at buying one of these machines. According to Faraday's Law, if the secondary of the transformer is located within the magnetic field, an electric current will be induced.In a basic induction heating setup, a solid state RF power supply sends an AC current through a copper coil, and the part to be heated is placed inside the coil. 10KW Hi-Freq Compact Induction Heater 100-500KHz Refurb. I tried to use the induction machine yesterday and noticed that it kept beeping a warning and the water fail alert LED was blinking and would it not heat material. When I first set my machine up, I plumbed a garden hose with a ball valve at the water in port on the back and ran the water out line to another hose that drained into the yard. The varying colors and number of water ports on the back of the machines have changed based on the year model and its quite possible for a vendor on eBay in 2020 to be selling machines made several years ago.
x 5/8 in. At the top right, click on the three dots icon in the upper right hand corner.
Research has shown a relationship between the heating depth of penetration and the frequency of the alternating current. (fixed coil or coil on a cable so it can be used by hand like a wand). Super high amount watching. I.D. Because these metals strongly resist the current flow, heat builds up quickly. Hydrocarbon & Ethanol Extraction Equipment We pride ourselves in offering the top of the line Hydrocarbon, Co2 and Alcohol botanical oil extraction systems & machines for natural flavorings, fragrance and more. Machines with varying numbers of water ports, different paint schemes and prices that were all over the place. I mounted it to the induction forge and can see the water temp easily while forging.
The relative resistance of magnetic materials is rated on a permeability scale of 100 to 500; while non-magnetics have a permeability of 1, magnetic materials can have a permeability as high as 500. If you have any questions or comments you may email us at sales@scisolinc.com or call us at (844) 404-4588. So small or thin parts generally heat more quickly than large thick parts, especially if the larger parts need to be heated all the way through. Please click the picturebelow for details on how to set up the vacuum tube. When an alternating electrical current is applied to the primary of a transformer, an alternating magnetic field is created. Once I established that one side was blocked I decided to pull the cover off of the machine and I found 4 areas where copper limescale had built up and caused blockages in several of the water tubes. Ease of use: just plug in the power and connect the water cooling system, our simple instruction allows you to use the heater in 15 minutes. Maintaining the coils I coat the coils with Meeco Gasketing Cement and Furnace Sealant. Its not a difficult process and theres little I can say about making coils thats any better than what EJ says here: I made my first couple of coils by winding inch copper refrigeration tubing around a different sizes of black iron pipe. A few videos Ive made using the induction forge.
Hi-Pressure & H2 Gas Furnace & Hot Pressing. This is about as precise as I can be with the way prices for items are changing so much in 2022.Obviously, if you already have some of the supplies needed, plumbing, wiring, etc. Buying Pre-Made CoilsTerry Cash with Cluaran Forge has begun making coils for these 15kw induction machines and so far, hes making the highest quality coils Ive seen.
Price various from country to country. Why? Do you get shocked?No, nothing happens unless you make two points of contact in the copper coil. x 10 ft. Clear Vinyl Tubing $61/2 in. With 100% load design, can work in 24 hours without stop.
Steel along with carbon, tin and tungsten has high electrical resistivity.
In the winter time, depending on your climate you may need to add some kind of antifreeze agent (see note below in December update.) Solid 15KW 30-80KHz High Frequency Induction Heater Furnace LH-15A 220V. So far, I have not seen the temperature rise anywhere near the 130 degrees that would cause a water-fail condition.
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