2kg Melting Furnace

No. The possibility of obtaining pure gold and silver from melting furnace depends solely on the refining process where gold smelting equipment plays a vital role in separating precious metals from their ores.

An induction furnace comprises of a nonconductive crucible holding the charge of metal to be liquefied, encircled by a coil of copper wire. A great alternating current flow through the wire. The coil makes a quickly switching attractive field that infiltrates the metal. The magnetic field induces eddy currents, circular electric flow of current, inside the metal, by electromagnetic induction. The eddy current, moving through the electrical opposition of the mass metal, heat it by Joule heating. The upside of the induction furnace is an environment-friendly, energy-proficient and well-controllable melting cycle contrasted with most different methods for metal melting.

Melting metals is crucial because it is one way in which it can be poured into molds and reshaped. Different metals melts at different melting points, therefore the process requires a lot of heat. However, due to its portability and easy operation, an induction furnace is highly recommended to carry out this process. Steps involved in melting different metals include;

• Purchase an induction melting furnace
• Create a work space
• Put on protective equipment
• Heat up the induction melting furnace
• Put in any metal of your choice into the induction furnace
• Heat up the metal till it melts
• Pour the metal into a mold

In search for a preferable gold and silver melting furnace, you might get overwhelmed by the many available technologies used in metal melting. But here are some questions to answer in order to select a proper gold and silver melting furnace which best fits your want;

• What is the capacity of the induction melting furnace, how much metal can it melt?
• What is the temperature range of the induction furnace and how much heat is required to melt the metal?
• How safe is it to use, does it cause pollution?
• Is the installation and operation of the furnace economical, how much power does it consume?
• How many variety of metals can it melt?

Deciding on which melting furnace to use depends on these answered questions. But one major factor to consider while choosing one is the furnace’s ability to consume as little heat and fuel as possible.

Induction heating uses electromagnetic energy to directly heat electrically conducting material (mostly metals). As discussed before; induction heating carries out a clean, energy-efficient and well-controllable melting process. The efficiency of induction cannot be over emphasized because it is a breakthrough metal melting technique. It is efficient because;

• While melting, there is no wastage of energy through heat loss.
• It avoids shocking and burning.
• Due to its direct heating characteristic, heat will not escape into the surrounding air.
• Power usage is controllable which makes it economical.
• It remains one of the safest heating methods.

A crucible is a clay or metal holder where metals or different substances might be liquefied or exposed to exceptionally high temperatures. Crucibles are used to liquefy and process materials at extreme temperatures. Types and materials of crucible used vary according to type of melting process being carried out. One of the earliest uses of platinum was to make crucibles. Metals such as nickel and zirconium are also being used. Crucibles and their covers are made of high temperature-safe materials, normally porcelain, alumina or an inert metal, carbon steel. An important guide in choosing a crucible; is its very high melting point, compared to any metal being melted in it in order to withstand the high temperature involved in melting metals.

Electric arc furnaces are high-temperature heaters that makes uses of high-voltage electric flows as their essential heating element. The electric arc furnace is an electric furnace where an electric arc produces the heat needed to melt the metal. To this end, carbon electrodes are mostly used. On the other hand; an Induction furnace is an electrical furnace wherein the heat is applied by induction heating of metal. these furnaces use induction heating technique which is a non-contact form of heating with alternating current to accomplish the necessary melting temperature of the metal. Induction furnaces are generally used in foundries since they are top notch, simple to work and energy effective. In metal working, induction furnace is more environment-friendly because there is no fuel burnt or gas released to the environment, while the electric arc furnace steelmaking produces a ton of waste gas, waste residue and noise, and has high energy use. In terms of sizes; the induction furnaces can be made to be compact and small in size, can be used in small and medium scale metal working industries.

Melting is a physical process that results in the change of state of the matter of a substance from a solid to a fluid or liquid. This happens when the internal energy of the solid increases, commonly caused by the use of heat or pressure, which builds the substance’s temperature to the melting point. At the melting point, the ordering of particles or atoms in the solid separates to a less arranged state, and the solid ‘liquefies’ to turn into a fluid. A gold and silver melting machine is an appropriate melting equipment used in melting. Smelting on the other hand is the process of applying heat to ore to extricate a base metal. It is a type of extractive metallurgy. It is used to remove numerous metals from their ores, including silver, iron, copper, and other base metals. Gold smelting machines plays a vital role in this process. The principle difference between melting and smelting is that melting transforms a solid substance into a fluid while smelting changes an ore over to its purest structure.

Precious metals like gold and silver are used in electronics like phones, cameras, laptops, televisions and other devices. They are mostly used in the internal connection of components. It is known that a phone contains about 0.2g of gold. Eventually, when these devices damage and are no longer in use, these precious metals need to be extracted in order to be recycled. The extraction is relatively simple and “melting” plays a significant role in the process. Good news is that it can be done domestically with the use of mini gold melting furnaces like a 2kg melting furnace.

For effective gold and silver melting, it is best to employ melting furnaces in melting process. Gold and silver Melting furnaces are used to overheat solid materials until they melt. Gold and silver melts only when they are heated above their melting points. And with improvements in the metallurgical industries, induction melting furnaces are used to effectively carry out metal melting.

Gold and silver melts at temperatures of 1,064°C and 961.8°C respectively. How fast they melt depends on the metal melting technique employed by you. Gold and silver melting such as; induction furnace is the fastest known means of melting gold and silver.

At Superbmelt, there are varieties of furnaces available to users in order to meet the different needs of clients. Here is a rundown of our induction melting furnaces;

• 1-2kg Desktop Gold melting furnace
• 3-5kg integrated Gold melting furnace
• 1-4kg Platinum melting furnace
• 10kg tilting gold melting furnace
• 20-30kg manual tilting melting furnace
• Chain tilting melting furnace
• Motor tilting melting furnace
• Hydraulic tilting melting furnace

Using borax in smelting which is a process in gold mining is a technique which uses borax as a flux to help purify the gold concentrate. Borax assists with reducing the smelting point temperature of the ore. This implies that smelting will happen rapidly and permit the precious metal to settle out. With some borax, heat, and a little skill, it’s feasible to remove pure gold from a sample of ore. This process can be easily done at home. A gold miner can granulate and wash a piece of ore, at that point blend it in with borax in a plastic sack. The sack is then positioned in a bowl or crucible and heated. The heating activity is the thing that triggers the borax to go to work. When the borax liquefies, it brings down the melting temperatures of everything in the ore. As the entirety of the ore melts down, they separate from each other. As the process proceeds, the borax makes the different minerals contained in the ore oxidize and breakdown significantly further. Gold is unaffected by this reaction and sinks to the lowest part of the mixture, and settles.

Gold parting is the isolating of gold from other metals. Gold is mixed with other metals and is mostly used in jewelry making. Separation of gold from other metals is no rocket science because it can be carried out by individuals at homes. However, excluding the following steps involved in the process, one major tool needed is to do this is a gold melting furnace such as an induction melting furnace, because to cheaply carry out this process you need access to a temperature furnace. Steps involved in this process include;

• Determine the amount of gold to be smelted
• Pour in the metals into the crucible
• Heat up your induction furnace to a temperature above the melting points of the metals in the crucible
• Pour in your flux (preferably borax) into the dissolved metallic mixture
• Pour off the slag
• Pour out your gold into a mold

Gold is known to be a precious metal and can be recycled over and over again to recast new jewelries, objects, or, applied in other field areas. The first step in recycling gold is melting. Gold jewelry melting process is being learnt by individuals in order to eliminate the needs of a professional which simultaneously reduces cost through the use of gold melting furnaces. It is a process simple to master; It has become simple with the invention of induction furnaces which is a gold melting machine. Extreme heat is needed to melt gold, and electric induction furnaces provides the needed heat. And with the ability for the temperature to be regulated and controlled makes gold jewelry melting easier for individuals. You can simply pour in your gold jewelry into a crucible. Place it into an induction furnace and heat it up to a temperature little above 1,064°C. Then, pour out your melted gold into a mold.

Gold is typically found alone or alloyed with mercury or silver, yet can likewise be found in ores like; calaverite, sylvanite, nagyagite, petzite and krennerite. There are several ways known to get gold from gold ore. But the commonly known technique is the use of Cupellation Method. Cupellation includes treating ores under high temperatures in order to separate precious metals, like gold and silver, from base metals. Base metals, like copper, zinc and lead, will oxidize though precious metals don’t. Cupellation includes liquefying metallic ores in induction furnaces at temperatures more than 960 degrees Celsius; at this temperature the base metals oxidize while gold stay on top of the mixture.

One of the methods used in purification of gold is the use of gold smelting machines; Heating crude gold with gold melting furnaces makes the ore dissolve while the impurities are made to float to the surface using borax, where they can be taken out. There is yet another method used to purify gold which includes the Cupellation process. Cupellation includes treating ores under high temperatures in order to separate precious metals, like gold and silver, from base metals. Base metals, like copper, zinc and lead, will oxidize though precious metals don’t. Cupellation includes liquefying metallic ores in induction furnaces at temperatures more than 960 degrees Celsius; at this temperature the base metals oxidize while gold stay on top of the mixture.

An important chemical used to hasten and improve the quality of the end product of the smelting process is a Flux. A smelting flux is basically a chemical added at intervals in the smelting mixtures to remove the impurities sticking firmly to the extracted pure metals. There are various flux available to use in gold and silver melting, but the highly recommended and effective one in major use is the Borax.

The amount borax of borax needed to melt gold directly depends on the amount of gold to be melted in a gold melting machine. With increase in amount of gold to be melted also increases the amount of borax to be used ̶ at least, half the quantity of gold to be melted.

Gold melting is the first and major step taken to recycle gold. And there are different methods used in melting gold dust and they include; gas torch, gas furnace, electric furnace, induction furnace, coal furnace. Gold melting machines like the Induction furnace is the option to melt gold dust because it is safer, environment-friendly, and well-controllable.

Heating is essential and required for different purposes domestically, industrially for metal melting, hardening, tempering, welding. Although there are different methods of heating, not all are environment-friendly. With a lot of changes occurring in our environment like the ozone layer depletion, flooding and altered weather seasons, industries have been obliged to find and eliminate potential causes of these conditions. Therefore, electric heating is increasingly becoming a viable means of heating amongst others, and it is as a result of the advantage it has over the rest. Advantages of electric heating over alternatives include;

• Environment-friendly
• Precise heating Operations
• Improved working Conditions
• Safety
• Economic and Easy Operation
• Controllable temperature
• Clean Work Space